JPS6026559A - Sheet reversing device - Google Patents

Abstract

PURPOSE:To prevent sheets from disorder, slant travelling, etc. for stabilizing the support of the sheets in a sheet reversing device of a both side manuscript circulating device by producing the sheet stopping condition for a certain time at every change-over of sheet transfer direction. CONSTITUTION:In the case of both side manuscript and both-side copying, the manuscript is transferred on a platen glass 12 and then motors 82, 97 are reversed while a solenoid 107 is turned on. Then, a sheet discharging route is changed over so that the manuscript is transferred by a transfer roller 9. When a sensor detects the tail end of sheet, the motor 97 stops. Thereafter, the motor 97 rotates forward after a certain time elapse and the manuscript is transferred by transfer rollers 10, 11. When the sensor detects the tail end, the motor 97 stops. After a certain time elapse, the motor 97 is again reversed and the motor 82 is rotated forward to turn on a solenoid 23 so that the manuscript is transferred by a belt 8. Thus, the sheets are prevented from disorder, slant travelling , etc. to ensure change-over of transfer direction.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an apparatus for reversing a sheet by switching the conveying direction of the sheet.

Conventional technology Conventionally, in a double-sided original circulation device, a plurality of double-sided originals are fed out one by one, fed to a predetermined position on the original platen glass of a copier, etc., stopped, and then the originals are turned back. A mechanism is used to circulate the back side of the original document through a path different from the transport path, and to feed and stop at a predetermined position on the document platen. During this switch pack, the direction of document conveyance is switched between forward and reverse, so the inertial force of the document can cause the document to slip away from the document support rollers, etc. There is a drawback that the original document is skewed when the document is stuck or the document is fed skewly, and furthermore, if the document support is firmly pressed to remove this problem, the device becomes larger.0 Purpose The present invention was made in view of the above points. It is an object of the present invention to provide a sheet reversing device that can stabilize sheet support by always creating a stopped state of conveyance for a certain period of time every time the sheet conveyance direction is switched.

The above and other purposes are detailed below.

Examples will be explained below based on the drawings. FIG. 1-1 shows a schematic configuration of an example of a double-sided copying apparatus of the present invention. There is a cutaway front view.

The copying apparatus of this example is broadly divided into two types: double-sided document circulation device A;
It consists of a copying machine main body B with a built-in copying device, a sorter C that sorts copy paper, and a double-sided document circulation system [
Is A the machine t of the copying machine body B? , 0 + 1) Double-sided original circulation device It is placed on the top plate, 2 is the paper feed belt drive shaft, 2a is the feed -1 (belt follower'#h axis, A paper feed belt 3 is applied to the paper feed belt 3, and rotates in the direction of arrow C in the figure. 4 is a separation belt drive shaft, 4a is a separation belt driven shaft, and a separation belt 5 is applied between them. and is rotating in the direction of the arrow in the figure.

A plurality of sheet-shaped originals placed on the original placing table 1 are separated one by one from the bottom by the feeding belt 3 and the separation belt 5. The 6Iri conveyance rollers 6a and 6b are rollers that come into pressure contact with the m feed roller 6, respectively. Also, 9,10
．． 11 is also a conveyance roller, and 9a, lOa, and lla are rollers 9, 10, respectively. IIK pressure contact roller. Father, 7 is the platen glass 12 installed on the top plate of the main body of the copying machine.
Conveyor belt drive located near the left side of -A, 7aF
A conveyor belt driven roller is located near the right side of the i-platen glass 12, and a belt 8 is placed between the rollers. The lower surface of this hanging belt 8 faces or contacts the upper surface of the platen glass 12 very closely. Also, 13
Reference numerals 1 to 18 are reflective optical sensors arranged at various locations along the document circulation path (paper path) to detect the leading edge or trailing edge of the document. In addition, there is a reflective optical sensor h8 for detecting the originals placed on the 20f'i original tray l, a reflective sensor (recycling sensor) ttS for saving one cycle of the JiX document stack, and a partition. The arm 22 is stopped from rotating above the original bucket bundle by the pulse motor 21tζ, and at that point, the recycle box 819 is turned on, and the originals are then separated and fed from the bottom original, and the rear end of the final original is separated from the partition arm 22. When the partition arm 22 passes through the recycle sensor box 819, the partition arm 22 is pulled out of the recycling sensor box 819 by its own weight.

(2) Copying machine main body B 12 is a grating glass, 30 is a photosensitive drum driven to rotate in the direction of the arrow around the shaft 30a, and 31t is charged - 132
33 is a transcription machine, 34 is a cleaner, 035 is a cassette for stocking copy paper, 3
6 is a paper feed 0- that feeds the copy paper in the cassette one sheet at a time.
1.3L 37a is a register roller, and 38 is a conveyance belt that conveys the copy paper after transfer to fixing devices 39 and 39a. 40 is an intermediate tray for storing copy paper after single-sided copying; 41.41a is a drive shaft and a driven shaft of a paper feed belt 42; 43,438 is a drive shaft and a driven shaft of a belt 44; The mechanism is such that the copy paper that has been piled up in the L11 tray 40 is delivered from the bottom. Also, 45° 458 is a paper discharge roller that feeds the paper after copying into the sorter cricp, or the sorter C If it is not connected, the rice grains are discharged to a paper discharge tray 46 shown in FIGS. 1-2.

(3) Sorter C 60 is a conveyance roller, and 60a is a pressure roller, which feeds the copy paper fed from the copying machine main body B into the bins 61a to 610.

Reference numeral 62 designates a fixing plate for the bins 61a to 61G, which has a cutout groove 63, is integrated with the bins 61a to 610 and the fixing plate 62#i, is connected to the chain 64 with a tin ring 65, and is connected to the motor 66. The rotational force is transmitted to the rotating wheels 067 and 67a fixed to the shaft, so that the rotating shaft can be moved upward and downward. Reference numeral 68 denotes an original t-sensor that detects the positions of the bins 61a to 61O', and determines which bin corresponds to the discharge port by detecting the notch n63. In addition, 69 is a photoelectric sensor that detects the trailing edge of the copy paper sent from the copying machine main body B/starts movement, and then stops the bin movement when the 6th notch groove is detected by the photoelectric sensor '11-68. During copying, the copy paper sent from the main body B is stored in each bin and sorted.

(4) Drive system for double-sided document circulating device @ Figure 2 is a cross-sectional rear view schematic diagram showing the drive unit. In the figure, 80. and 81 are motor gears, paper feed belt drive shaft 2, and separation belt drive! Driving force is transmitted to the klJ shaft 4 through a gear 96. 82 is a motor Ml,
83 is the motor pulley, 86t, 2! Googly, belt 8
7 to 7, the belt 88 is rotated 4 by the electromagnetic clutch CL85.

In addition, 89 is also a two-stage pulley (integrated), belt 8
The driving force is transmitted from the conveyor belt 8 to the belt 90, so that the driving force is constantly transmitted through the drive roller 7 of the conveyor belt 8. Further, 93 is a disc with a notched groove 94 that is rotated together with the two-stage pulley 89,
95, the movement of the seatbelt 8 can be detected. 9
2 is the direct brake 13, and the small belt 8 turns on.
This makes it possible to stop the system instantly.

Also, 97jd motor M3.98t gear, 99 pulley, 100, 101, 102 belt, conveyance roller 6
．． The driving force is transmitted to 9, 10, and 11. Also, 103
is a disc with a notched groove 104 that is rotated together with the pulley 99, and is connected to the photoelectric sensor 105 by a conveyor roller 6.9, 1.
By detecting a rotation amount of 0.11, it is possible to detect a jammed document being transported. In addition, a solenoid S is used to switch whether the document on the grating/glass 12 is transported in the direction of the transport roller 6 or the transport roller 9 using the fulcrum 106.
This is done by LIO7.

Next, the operation buttons of the double-sided original circulating device A will be explained.

(1) One-sided original - one-sided RJIJ copy (without sorter) In Figure 1, original #! A plurality of sheets of single-sided originals with the pages arranged in the same order are placed on the cabinet l with the first negative side facing upward. The placed original is transferred to the paper feed belt 3 and separation bell) 5 by -1.
The originals are separated and fed sheet by sheet from the bottom, and the fed originals pass through the paper bus Iai and are transferred to the platen glass 1 by the conveyor belt 8.
The document is sent out with the image plane ll11i facing downward. When the trailing edge of the document is detected by the sensor l 4 (f%), it starts counting the number of notched grooves 94 in the disk 93 (FIG. 2) from that point on, and after counting the predetermined count. The hand lever M182 is turned off, the clutch CL85f is turned off, and the brake BK92 is turned on, and the rotational drive of the conveyor belt 80 is stopped instantaneously. As a result, the document is automatically positioned at a predetermined position on the surface of the platen glass 12, and the sensor x3 (St) (Fig. The sensor 13 (S,) detects whether or not the sensor 13 (S) detects whether the sensor 13 (S,) is
t If no error is detected, it is determined that there is a jam in the document and transport is stopped.

When the M Tachibana is positioned on the platen glass 12 in this way, a paper feeding completion signal (described later) is sent to the machine body B.
IC feeding and copying operations are started, and a toner base corresponding to the image t9 of the original is formed on the photosensitive drum 3°. Also, the copy paper is fed from the cassette 35 yen to the paper feed roller 36. One sheet of paper is fed, and after passing through the paper path Ib, a toner image of Mtl is transferred onto the upper surface thereof by the charger 33, and then passed through the paper bus JIb.

The sheet passes through the fixing rollers 39 and 39a, passes through the steep path Ib, and is discharged to the paper discharge tray 46. On the other hand, the exposed original is exposed to a halogen lamp 46 and optical mirrors 47 a, 47
One JIAf* m by b, 47 c, 47 d
After the light is finished, the paper passes through the paper bus (a) and V1a and is discharged. At the same time, the next original is fed in parallel and positioned on the platen glass 12 in the operation described above.

This parallel operation is simply an operation of circulating the originals, and the reversal of the original during the process is called an exclusion compression operation since the previous original is not performed even if the next original is attached. Circulation sensor 14
Cycle end signal detected by 819 (described later)
fs to main unit B while copying, and count the number of copies by 1. The above operation is repeated until the set number of copies is reached, and the inevitable number of copies is stored on the paper output tray 46. (If) Single-sided original - Single-sided copy (with sorter) 1) The operation is almost the same as in the case of single-sided original - single-sided copy (sorter heat), but in the case of no sorter C, an exclusion compression operation was performed every time a JJIC manuscript was exposed. On the other hand, when the sorter C is installed, the original exposure for a certain original is performed a set number of copies, and the copy paper that is sequentially discharged is placed in the bin 61a of the sorter C.
The bins are shifted from 610 to 610. In other words, it is possible to copy the set number of copies in tii times of circulation of φ with sorter C.

(tii) Bidirectional original copying - double-sided copying (sorter heat) Assuming that there are three originals on the original tray L, 1. @Okezaidai l
If we assume that the number of copies at the 0 position where the original placed on page 11 in Figure 3 is 't' is 3'111, the copy paper after copying is ejected as shown in Figure 4. The originals 1+10 are stacked on the paper tray 46, and the state of the originals 1+10 is the same as the initial setting as shown in FIG. After that, motor Ml 82. M397 (Fig. 2) is reversed and at the same time solenoid 8L 107
By turning on, the paper ejection route is switched, and the original is sent to the paper path at a, iv a fi-*lii feed o-59.
It is conveyed by holding it in its mouth at 9a. Sensor 8517 is IJ
J[If the rear end of the bucket is detected, the motor M397 is stopped. After a certain period of time has elapsed, the motor M397 is rotated in the forward direction, and the original is passed through the paper buses va and V1m, and is passed through the transport roller io.
, lOa, II, and lla. If the sensor 5618 detects the rear edge of the document, the motor M3
97 is stopped, and after a certain period of time, the motor M397 is reversely rotated again, the motor M182 is rotated forward, and the solenoid 8L23 is turned on, so that the document passes through the paper bus SNA, is gripped by the belt 8, and is conveyed. Then, when the sensor 8315 detects the rear end of the small MA bucket, from that point on, the disk 93
(Fig. 2) starts counting the number of notched grooves 94, and after counting the predetermined number of counts, the motor M182 is turned off, the clutch eL85 is turned off, the brake BK92 is turned on, and the conveyor belt 8 is rotated! # The secretion stops instantly and the original is set. As shown in μ, the paper feeding operation in which the original on the document mounting table 1 is set on the platen glass 12 while being inverted, that is, the inverted paper feeding operation (hereinafter referred to as the counterfeeding operation) is performed first.0 Then, the paper feeding is completed. Sends the signal to the copying machine body B. Copy machine body B
In this case, the original image is copied onto the copy paper in the same way as in the above operation, but the copy paper discharged from the fixed size rollers 39, 39a is
Since the switching claw 48 has been switched, the paper path 1■b is changed to iQ and is placed on the intermediate tray 40 at 4SM in FIG. The retracting motion for positioning and setting the negative eye downwards on the platen glass 12 is the paper path tita, lI+
'a, 'v a, Vl ``Let's go through t■aJ
(This operation is hereinafter referred to as repeated operation) 0 After that, the paper feeding completion signal is sent again to the copying machine main body JJK, and the copying operation for the 5th page is not executed. Copy the 5th negative image on the back side of the copy paper on which the 6q-th image 1W was copied, 1.11', hl;)
The sheet is discharged onto the sheet 46 with the fifth image facing upward.

Also, the original on the platen glass 12 is paper paper vMas■
a through the conveyance roller 11. Document mounting table lK by lla
! The fifth page is ejected onto the written original with the fifth page facing upward (this operation is hereinafter referred to as an exclusion operation). From a certain time during this exclusion operation, the above-mentioned counter-feeding operation of the next original holding pages 4 and 3 is performed in parallel with the exclusion operation, and the fourth document is placed on the platen glass 12 with the fourth negative side facing downward ( d is determined and set (this operation in which the exclusion operation and counterfeeding operation are performed in parallel is hereinafter referred to as the exclusion and counterfeeding operation) 0 After that, the above-mentioned copying operation is performed as many times as necessary, and finally the copy paper is as shown in Figure 4. The document is discharged onto the paper discharge tray 46 as shown in FIG. 3, and the document is also discharged onto the document table 1 without changing its initial set state as shown in FIG. 3, and a double-sided copy is photon'd from the double-sided document.

(1v) Double-sided original - double-sided copying (with sorter) The operation is almost the same as the double-sided original - double-sided copying (sorter heat) explained in the previous section.However, if there is no sorter C, once for each original ) I'A11 Exclude/reverse feed excitation was performed every 4 lights, but there is a case where sorter C is installed in Xi L.

The original exposure is carried out a number of times for copy setting, and the intermediate tray 4
As shown in FIG. 6, the sheets are once stored on the paper 0, then re-fed and copied on the opposite side to the original side, sorted by the sorter C, and sequentially stored. Finally, the copy paper is stored in the sorter C as shown in Fig. 7. Further, the original is also discharged in the same state as the final set as shown in FIG. 3, and the entire process of copying is completed.

(V) One r*i original - double-sided copying (no sorter) The number of originals placed on the original platen L is n, and the bottom original is On1
Figure 8-1 or Figure 8-2 when starting the top manuscript as OI,
Two original document setting states are possible depending on whether the margin n is an odd number or an even number. First, the case where n is an even number will be explained. 8th-
After applying 1 image pressure, first set the original On on the platen glass 12 using the processing operation, then put the copy paper on which this original On has been copied into the intermediate tray 40, and then perform the exclusion operation, and then set the original On and 0n-1. We will exchange original documents. Next, manuscript 0. ,
oJG (copying for @0n-t, placing the copy paper in the intermediate tray 40, and then changing the next document in the same way) without making a copy. The document is exchanged with the document On-m by the displacement operation, and the document On-s is set on the platen glass 12. At this time, if the original image of On-m is the 4th document in IF, the partition arm 22 The copying machine main body B receives the cycle end signal from the double-sided document circulation device A, and determines whether the number n of documents is 4 or an even number. Then, for 0n-1, no copying is performed, and the document 7 is replaced with the next original On by an ejecting operation, and the original On is set on the platen glass 12. The manuscript and copy paper at this point are the 9th IEA
(The state will be as shown in 11 to (3).

Skip copying of eKK manuscript On, and copy manuscript 0n-.

The original is exchanged with the exclusion vessel, and the original is turned on-*
is set on the platen glass 12, and this raw material (sieve (J 1
1-1 is fed from the bottom of the one-sided copy paper stacked on the intermediate tray 40. The original 0n-1, that is, 8g3 size, is copied on the side of the paper and is ejected onto the paper ejection tray 46. Thereafter, the same operations as described above are repeated, and the document is set to On - Snow is Co-Be Skip, and the document is set to 0. .

For copying, the second page of the intermediate tray 40 is the copy server J1.
1 as shown in No. 1 O-11A.
A set of double-sided copy paper is ejected. Then, repeat the copying operation for the first copy as many times as the number of copies to be created.If the set number of copies is 3, the final copy paper will be in the 1st row, Figure 2, and the original will be in the initial set state, yPM 8-1. The Sikobee operation is completed in the state shown in .

The case where the number n of copies of Ryokan is the number of copies will be explained. 8th-
In Figure 2, as in the case where the number of originals 0 is an even number, the original @On is copied and transferred to the intermediate tray 40, the original 0n-1 is skipped, and the original 0n-8t is copied and transferred to the intermediate tray 40. , the original 0n-sFi is skipped, and the original 0n-1 is copied and transferred to the intermediate tray 40 repeatedly, but /
During the exchange of originals between Ji (documents 0n- and 0n-4), the copying machine main body B determines that the number of originals n is 5, which is an odd number, based on the cycle end signal from the double-sided original circulating device. Exchange the original 0n-4 with the next original On, and set the original On on the platen glass 12.The original and copy paper at this point are as shown in Figures 9-2 (II to 3).
). Next, the copy operation of the original document f10n is skipped, and the original document is exchanged by an exclusion operation with the fire source 4'AOn-1. At the same time as this exchange, the copy paper on which the fifth page was copied on the intermediate tray 40 is transferred to the paper path Vlb, f.
ib and jib are passed through and placed again on the top of the copy paper on the intermediate tray 40. Next, copy the original 0n-3 into the middle 1.
) iJ Make the third jj copy on the tray 40 on the opposite side of the copy paper, and place it again on the top of the copy paper on the intermediate tray 40 in the same manner as the circulation path of the copy paper of the fifth page. At the same time as this circulation, the original 0. .

and the next original 01-, and then the original 0n-1
is set on the platen glass 12. Manuscript 0n
The copying operation of -1 is skipped, the copying of originals O and S is performed on the opposite side of the copy paper on which the first negative mark on the intermediate tray 40 has been copied, and the copying operation of original 0n-4 is transferred to the intermediate tray 40 again. will be skipped. At this point, the copy paper is in a state as shown in Figure 10-3. Thereafter, the copy paper Vi on the intermediate tray 40 is sequentially conveyed from the bottom to the paper path Vl.
j), II b, vibt, a part of both 101 copies are ejected onto the paper ejection tray 46. After 0, the above operation is repeated as many times as required for the set number of copies, and if the set number of copies is 3, For the final nine, the copy paper is '4, figure 11, J
@4@ is in the initial setting state as shown in Figure 8-2, and copying is completely completed. The difference from the operation sequence in the case of (Sorter Swallow) is that when Sorter C is not present, IE ejection engineering work is performed at 1σ of original exposure of a certain original IA, whereas when Sorter C is If it is installed, exposure of a certain original is performed as many times as the number of copies set.

When the number of originals is 4 as shown in Figure 8-1 and the set number of copies is 3, the copy paper on which even-numbered pages have been copied is placed in the intermediate tray 40. ．． 1: Do one sudock as shown in Figure 12-1. Then, the copying operation is performed for the odd layers by feeding from the bottom, and the copying operation is completed after being stored in the sorter C as shown in Figure 12-2.Also, the original is made into 5 sheets as shown in Figure 8-2. , when the copy setting section a is set as a temporary ICA section, the copy paper on which the odd page a has been copied is placed on the intermediate tray 4o [f413-
As shown in Figure 1 <-, and stock. Then, it is fed from the /&F section to perform even a negative copying operation, and the resulting intermediate tray 4
0 as shown in FIG. 13-2, then sent to the sorter C without executing the ti=bee operation, and finally stored in each bin of the sorter as shown in FIG. 13-3, completing the copying.

Next, the control section of the apparatus which executes the copying operation as described above will be explained.

FIG. 14 is a schematic diagram of a control circuit for performing the above-described sequence operation. In the figure, the two parts A, B, and C are shown by dotted lines, respectively, and signals are sent and received by A, B, and e, respectively.
Between is cable 122.11, and C1111 is cable 12.
1 using a serial transfer method (described later). 123 Jl.

123b, 123c, 12:jd are line receivers for receiving serial signals, using Schmitt TTL,
It has a l<J path configuration as shown in Figure '4415.

father, 124a, 124b, 124c, 124d, 124
e.

1z4t, x24g, x24h, 124i, 1z4j
is a line driver for serial signal transmission δ, which uses a driver 'rTL and has a circuit configuration as shown in FIG. 120 Hiroru OM and I are well-known one-chip microcomputers (hereinafter referred to as microcomputers) with built-in AM, etc., such as the NEC Ririhoro μ-〇〇M43N.
can be used. Microcomputer 120 Kl/Jls I(l
fi%m 125 j: ') 5 v'tK(lIA
Power is supplied to enable internal program execution.

Input port of Mico 7120, ~ISo [line, each sensor signal 1 Signal of microswitch MS126 that operates when the double-sided document circulating device is opened from the front side, copying machine body B
The request signal IQ etc. from the terminal is input. At the interrupt input terminal INT, either the gun feed lock output from sensor l05 (Figure 82) or the belt clock output from sensor 95 (Figure fit-2) is connected to AND gates Qt, Q*, It is input from a circuit composed of an OR gate 1 and an inverter q and υ. The transfer lock and belt clock are switched by the switching signal C8127 output from the output boat O0. ．． 0.
, U, ~0□ are connected to drivers D1 to D1m, and 's? ? ), the respective loads can be driven through the drivers D, ~L)lIt-.

Also, On is the acknowledge signal ACK sent to the copying machine body B.
It is an output boat that outputs . In addition, the M 3 CW signal and MaCCM signal are inputted from the output capacitors On and 04, respectively, to the driver 128 including the i-brake.
The rotation of the transport motor M3 is controlled. Also, 129
With the social brake circuit, the output port is 0. From M2
(When the number i is turned off, the separation motor M2 is turned off and the electric brake is applied instantly.

The request signal it,
w Q is always transmitted at some internal time C. No. 15 EQ is microcomputer 1200 capo) 11
0, the microcomputer 12 of screen original circulation device A
Output the acknowledge signal ACK from the output port 0□ of 0, and send the microcomputer 1200Å capo) 8C from the copying machine body B.
In synchronization with the clock signal 80 output to K, the serial data Si1 from the copying body 13 and the serial data SO from the double-sided original 1m ring 414 It A are transmitted.
is transferred in units of 8 bits per request. For valve assembly timing, refer to μ-〇〇M43N serial 'li
Since it is the same method as qr75, the sound is omitted.

Also, the field FLDi1 shown in FIG. 17(2) is ++
+4-sided Gengotate ring system # 8-bit data sent to the person, bit 7 is a field specification bit and is always "O", bit 6 is the document feeder that allows the copying machine body B to feed and replace the original. The paper signal, bit 5, is a document discharge signal for only discharging special KM manuscripts after final exposure when the copying machine main body is in BCDJAM mode.

This is an operation command signal to perform each operation of exclusion and counterfeeding, anti-displacement engineering ship, anti-extraction and re-feeding, and return repetition.For example, the anti-exhaustion engineering ship operation is bit 3 ~ Ou O, (1, 1, OK Also, the fields FLDOI and FLDO2 shown in FIG.
, FLDO3 is data of 24 bits in total, 8 bits each, transmitted from the main body BK of the copying machine, and each bit 7.6 has a field designation bit, making it possible to discriminate each field. Bit 5#'i of FLDOl is a document feed completion signal that is turned on when the IfA machine is conveyed and set on the platen glass 12 (Fig. 1), and bit '4 is the copying machine body B.
An operating signal that turns on when a document feed signal is received from
Bit 3 is for the double-sided document circulation device, where the person executes the document conveyance sequence, especially the motor! 1 (This is a driving signal that is on while the load is on. This signal No. 14 is for suppressing the maximum power consumption of the entire system including the copying machine body B. For example, if this signal is on, While I'm doing it
,'l Jf-This becomes possible by turning off the halogen rung in the fixing device 39 of the machine body B. Bits 2 to 0 indicate the document size signal detected by the sensor 13.14 during conveyance from the document tray L to the platen glass 12. For example, for A4, bits 2 to 0 are 0.
0.1, and the original number 1 paper feeding completion signal and 61 are simultaneously sent to the copying machine main body BK. Also, bit 5 of FLDO2 indicates that the last document is sent out in ring a.
This is a cycle end signal that is turned on by the cycle end sensor tssx9 (FIG. 1) which detects the partition arm 422 (FIG. 1) which has rotated 4·v due to its own weight. Bit 4 indicates the state of the document detection signal that is turned on when the original tray 4 is placed on the document tray 1 (FIG. 1). Bits 3 to 0 of i'LDO2 and FLDO3 Bits 3 to 0 This is a rounded document number signal that transmits the number of original 7 drops that can be recognized at the same time as the cycle end of the document is detected. It is expressed as a binary number with the side as the lowest, and if there are 20 pieces in decimal, FLDO2 bits 3 to Q,
FLD03 pits 3 to 0 are each 0.0.0°1.0
,1,0,0. becomes. FLDO3 bit 5Vi”
This is a JAM signal that is generated when a document transport failure occurs in the double-sided document circulating device A. Bit 4 is the open/close micro switch M8.
126 (FIG. 15) is activated, this is the #open signal that is generated when the double-sided document circulating device A 124 is operated. This signal is for copying originals for which the double-sided original circulating device tA cannot be used, such as books.
When the copy button is pressed, the copying operation of the copying machine main body B is started without sending a document feed signal to the duplex document circulating device AK.

Figure 19 shows the double-sided MX document circulation device (B 1) 11')
13 is a timing chart showing the timing of each signal of the serial data described above for each operation 135' of the copying machine main body A and the copying machine body B. FIG. 136 is 1LDF from copying machine body B
Serial signal sent to A.

137 shows a serial signal sent from ILI) F to the copying machine body B, 13 B Fi, and a sequence in the RDFA. In this example, one copy is made from two originals, and the second
A jam occurs in the DF when the first document is ejected.

Next, it D
This will be explained with reference to the timing chart.

Figure 19 is the main flowchart for carrying out the operation sequence of +7) IL D F described above.
In ep201, the initial reset operation when the base power is turned on turns off each output port, and also clears the 14 AM area inside the microcontroller 120, and clears each counter, timer, command, etc. described later. In step 202, it is determined whether the jam is in progress, and if the jam is in progress, the
JAMitgsg'r 5utsVc at tep205,
1-v, JAM Wait for RWiSBT, and if not in JAM, proceed to next 5tep 203. In 06tep 203, A
It is determined whether the door of the department is open or not. If it is open, the sequence operation is ignored and the process proceeds to 5 step 208. If it is closed, it is assumed that the door is normal and the process proceeds to the next 8 step 204. At 8tep204, 8EQUBNCg CHECK
Proceed to SUB. This is a routine that performs the operation sequence of the RDFA section, and the details will be described later. Next 8 step 20
6 is a routine that increments each timer started in 5tep 204 one by one, and 5tep 207
determines whether there is an input to the INT7J child to which either the conveyor lock or belt clock is input, and if so, increments each counter activated in the above-mentioned 8tep 204 by one. 08tep 208 is the SII%I
AL CL (KCK SOB KA-') is a routine that performs the operation sequence for performing the above-mentioned serial transfer with the main body of the copying machine (8 copies). Main 70- is normal/5tep202.203.204,206,20
After processing 7.208, it returns to 8tep202 and draws a loose pattern, and each 80B routine is a CAL of the microcomputer.

The configuration is such that it is called by a command, returns to the end of processing, and returns by a T command to proceed to the next 5 steps.

Figure 20 shows lQUgNc at 8tep204 mentioned above.
j (detailed flow of CHICK SUB).

At 8tep 211, a check is made to see if a reflex 5yo EIIE, which will be described later, is set, and if it is set, it is determined that the jitance operation is in progress, and the process proceeds to 5tep 214.

If it is not set, 08tep is 4 steps to 8tep212, which waits for the operation start command from the copying machine body B.
In step 212, if either of the above-mentioned serial data (original ejection signal) or (original ejection signal) is set, the operation ii+4 starts (step 5) and proceeds to step 213. ) is only when the (original paper feeding complete signal) is set, that is, when the copying machine's platen gas is also not set, proceed to BT and S
WQLjgNCg (,'HJ4eK SUB Hil
Enter the l-shaped gic.

Next, 5tep 213 t-6 will be explained. 8tep213
is a 5 step step in which the operation mode of the sequence operation is specified and the operation is started. First, in order to prohibit changing the operation mode from the start of the operation until the end of the copy operation of the copier body B, the wJ operation mode is determined and the operation is started. Set command 1 to 1 so that it will be performed only when
Like the judgment in ep 211, 8tep 213 is ignored. Furthermore, in KStep 213, the serial data (original paper feeding completion signal) is reset when the copying operation of the scanner main body B is completed, the (operating signal) is set to notify the start of the operation, and one cycle of the original sheet 1 is completed. Reset (cycle end No. 16) that is output when the cycle ends. Then, as will be described later, the machine sets the lining paper allowance 1, 12, and commands the start of paper feeding operation. Furthermore, store the contents of the 1-print command No. 1g) that specifies the operation mode from the copying machine body B to the table counter (Ml)ON), and proceed to the next 5 steps 2
Proceed to step 14.

In 8tep214, the table counter (MDC) mentioned above is
N) cv Inner fIK-YoJ) Branch L, (MIJe
N ) = 0 (7) In order to perform exclusion work ship mode processing, proceed to 1 work ship SUB, and the following (MDCN) =
In 1, positive, negative and negative feed SUB, (8.11)CN) =
2 is an anti-waste construction ship SUB.

(Ml)CN) = 3 and t yo anti-exhaust feed 8U B, (
When ML)CN)=4, the process returns to SUB. In this case, specify the operation mode in step 213 at the start of operation,
The contents of the table counter (MDCN) are determined by the mode, and the table counter (MDCN) is determined in step 5214.
) depending on the content of each mode! For example, the first page of the manuscript is set to % by engineering ship #eh +F because it is 1g to proceed to the routine.
ka paper, performs the entire copying operation, and changes the mode specification at the next operation amount Vd. The mode of the next operation can be changed at the start of the operation, such as feeding paper in the counter-feed mode. It has become a reality.

08tep 221, which is the 8LIB routine that performs the paper ejection and feeding operation according to the operation command determined in FIG. 20 described in FIG. , normal feed SUB, and paper feed redundant SUB, and the sequence operation is advanced by rapidly performing paper ejection, paper feeding, and paper feeding completion processing in each 8UB routine. Similarly, in K 8tep 222, exclusion/counterfeeding operation, in 5tep 223, anti-displacement ship operation, 5
At step 224, an anti-exhausting motion is performed, and at step 8, 225, a reversal motion is performed. In each of 8 steps 221 to 224, it is determined whether the document discharge signal is set, and if it is set, only the document discharge operation is performed.
225, the operation is prohibited. Also each:
3 steps 221 to 224 are designed to start with the sheet ejecting operation, but if there is no sheet to be ejected on the platen glass 12 of the subject machine, the sheet ejecting operation is not performed.

Next, if there are two manuscripts, take the exclusion engineering ship action for all questions, and vJ
Figure 22 Engineering Ship 5uit - No. 25 Exclusion SUB and No. 2
7th factor paper feed photon 5U13 - 1 with reference to Chard
I will explain it in detail.

Now, put two sheets of paper on the original I@i stand L, set the copying machine body B to the ejector mode, and set the document feed signal to stop and eject IEm movement 1'. starts.

The engineering ship in the first manuscript is 8t in the engineering ship SOB in figure 22.
At ep231, the sensor r;s (Fig. 1-1, 20) detects the document, and the paper feed permission command is reset to perform only the engineering ship operation. Then, set the reverse it'fi command t reset paper feeding command, issue a prohibition command for other operations, and start the JAM timer [JTM] up to sensor 81 (Fig. 1-1 13). , separation motor M2 (first
-4 Figure 80) is turned on to start document separation and 8tep2
91 on the table counter [1NeN] to advance to 32
0 each 8 steps: J: Branches depending on the contents of the table counter (iNeN), and as the dynamic flE/- case progresses, the table counter (iNcN) is updated and 5 steps are processed at once. There are also other Cheagle counters described below that operate in the same way.
In ep232, the sensor 81 monitors whether the leading edge of the separated document is detected until the JAM timer (JTM) ends, and if the time is up, the JAM is determined as a separation failure.
Relax to E8gT SUB. If normal, transport path 1a
The leading edge of the document that advances is brought into contact with the roller 6 t 6 a K, and in order to further create a loop, the timer (TMI) is started, and the table counter [1NcN) is set as 4-2. Wait for the end of , turn off motor M2,
Create a loop, start the loop stabilization timer (TM2), and proceed to the next 8 tep with the Cheagle counter [MUNON]←3 At 08tep234, wait for the stepchild at the end of the loop stabilization timer (TM2), and then change the output port of the microcomputer 120. 01゜o
,,o,,o,. Ipa M3 ew, which is output from
Mlcw.

Turn on CL and SL, set the document discharge permission command starting from ;tn and ht&, start the JAM counter [JCNl] up to the sensor 82 (Fig. 1-1, 14), and start the table counter [JCNl]. 1NCN] ← Next 5te as 4
Proceed to p oStep 235 Check whether the leading edge of the document is detected by sensor S2 or not, and go to J1%- (counter (JeN
t) is completed, and if it counts up, it is considered as a delayed JAM.
To 1. l! nothing. If it is normal, the accumulated JAM will be detected as soon as it is detected.
IA until the original passes through sensor S2 to detect
M Cow/Ril: JcN2], and then [J
! A document size counter] is started to detect the document size, and then the table counter [1 NeN]←5 is set to the next 5 steps. At step 236, the sensor 81 monitors whether or not it detects the trailing edge of the document, and if it does, the sensor A counter (CNl) that counts the number of clocks corresponding to the distance from 81 to roller 6.6a is started, and the double counter [:jNCN) is set to 6.

At step 237, the signal C8 that is output from the output port 011 is turned on while observing the end of the counter [CNl] of B118t, and the table counter (iNCN) is turned on.
Set it to 7. This is because if the document is spread over both the roller 6.6a and the belt 8, it will be equal to one feeding speed of the roller 6.6a, so the disc 104 and the light one Lusen? Although each color/printer depends on the feed-in clock outputted by 105, after the trailing edge of the document is removed from the roller 6.6a.

Since it becomes equal to the conveyance speed of the belt 8, it immediately becomes dependent on the belt clock outputted to the disk 94 and the photoelectric sensor 95. Therefore, the color/ri (CN
At the end of II, that is, when the trailing edge of the document passes through the roller 6.6at-, the clock is switched from the transport lock to the belt clock by turning on the switching signal C which changes the input side to the interrupt terminal INT of the clock. Control can be continued without changing the correspondence between the transport distance and the clock. At 5tep 238, Senna S2 detects the rear end of the yX structure and monitors it until the JAM counter (JCN2) is completed, and if it counts up, @f? gJ
AM as J AM kLg 81iT 8 U B
If it is positive/iδ, immediately stop the [original size counter] when the trailing edge is detected, and end the original size detection.
At the same time, the original is placed in the registration collar y l (II
GCNi ) is started, and since one Gengo has been sent to the public, the table counter [i NCN] is incremented to count the number of manuscripts.
'J ← Proceed to the next 5 steps as 8. 8tep 23
I at 9! Wait until the registration counter [GCNt] finishes, and at the end, send the signal M to stop fjr on the platen glass 12 accurately at 1°1lla.
3UW, MICW, CL, t7, (I HK, d-
/l, , returns to 8tep231) and enters a standby state. At this point, 1 enters a standby state at step 8231 because the paper feed permission command has been reset.

Next, the paper feed photon SUB will be briefly explained with reference to FIG.

First, set the table counter [8nTCN) = O to 8tep.
281 is being processed 0 Here, during the rift record feeding operation, the paper feeding permission command was set and the paper feeding permission command was set, and the machine was in a standby state. Jinre is the 8 mentioned above.
In step 239, the feeding resistor → h instruction is reset, and the inverting instruction 1i, which will be described later, is also reset, so the standby state is canceled and the paper feeding permission command is also issued.
Brake BK92 on time timer [TM3]lxter 1s (Judge the original size from the contents of the original size counter and set the original size data to (in the serial data)
To store K (original size signal) (7) Process 8 UB Lu1-ysIleK 5LJi3, store K (original size signal) in serial data, output a copy start command for the copying machine, and check it. The main body of the transfer machine turns off the (original paper feed signal) and starts copying the first sheet. Further, the switching solenoid SL is turned off to perform exclusion and cutting of the document conveyance path, and the table counter (sgTcN) is set to ←l to proceed to the next step. 8
At tep282, t! Fi! Even after waiting for the end of own tie-r (TM3), the brake BKI was turned off and the table counter (
Set S l>'i'cN ]←2 and proceed to the next step.

At 5tep 283 and 284, the partition arm 22 and the pulse motor 21 are processed to detect one circulation of the document stack F), and at 5tep 283, the sensor E8 detects whether there is a fire source F'4 on the document placement table L. Judging the output of
If the next document is 2, it can be determined that the number of pages is 1, so there is no need to process the pulse motor 21, and the table counter (88'rCN) is set to 4 and advances by 5tcp285PC. If there is a next manuscript, check whether [Number of manuscript sheets] = 1, and it must be #l”jL
In this case, it is determined that the number of tickets is 2 or more, and the pulse motor 2 is activated.
1 should have already been performed, and the process advances to 8tep 285 in the same manner as described above. Current r, L (counter)=”
Since it is the first original wood, the counter [PLSeN] that rotates the pulse motor 2101 is started to process the pulse motor 21, and the table force +7 yta [5WTeN] is generated. 4- '3 Toshite K 5tepic M tr.

In 5tep 284, every time a routine/process is performed, the counter (Pi, 5CNI + 1t) is turned on, and if the pulse motor 21 is off, it is turned on, and if it is on, it is turned off, thereby controlling the step angle of the pulse motor. When the counter [Pl, 8CN] ends, the pulse motor 21'i1 is rotated, and the table collar 7 is rotated.
II (8HTCN) Proceed to the next 8 tepK as 4-4. At step 5, 285, the setting of the 4d command during paper discharge is checked to wait for the end of the gutter processing, and if it is reset, it is determined that the paper discharge has ended, and the process proceeds to the next step. Since it is the first document, it continues as it is and monitors whether the recycle sensor Ls (19) is detecting it. Since it is still the first document, the recycle sensor S continues to detect it, so the partition is removed. It is determined that the arm 22 remains on the remaining original image 1, and one cycle of the original is -
Judging to be continuing. However, as will be described later, if there is no detection, it is determined that one cycle of the original has been completed, and the contents of the [original sheet number counter] are stored in the serial data (JQ lost sheet number signal) as the original sheet number data of 11. Clear the contents of the number of sheets counter, and set K (cycle end signal) at the same time to signal the end of one cycle.In 08tep285, a paper feed permission command is issued again, and the above-mentioned start command is issued. Reset, set the paper discharge permission command 1, and set the reversal permission command, and enter the waiting state as the table counter [5kJTcN] ←.

By resetting the start command at this point, the process advances to step 212 in FIG.
xll1tfM) have all been reset, so they return to iLET and enter a standby state.

Explanation of the operation of the exclusion engineering ship after the copy operation is completed t-rr
cormorant. 2'T In Figure 20, when copying is complete, (original (4)
When the paper feed signal) is set, it takes 5 steps 213°214
Proceed to % (Manuscript! a Kamikoko) Reset everything and call the tonne discharge engineering ship 8UB 0 Exclusion city supply S U in Figure 21
At step 13, in order to simultaneously perform the exclusion of the first original and the overdrawing of the second original 1^, parallel processing is performed for the overdrawing SUB in FIG. 25 and the overdrawing SUB in FIG. In FIG. 25, the first tachibana is excluded (91). Table counter [:
lCN:] = 06・Go to 8tep261,
Check whether the paper ejection rFFI'iT command is set, and in this case, stop <tS LJ 5step in B.
Since it is set in 234, the next step is to reset the paper discharge permission command, and then issue the paper feed permission command and reversal permission command f.
+7, stop other operations t-a, set the paper discharge command, and set the interval timer [TM4]'! Start i-start, set table cuff/re (HJ UN)←l, and proceed to the next 5 steps. At 8tep262, wait for the end of the interval tie w [TtJ4] and turn on the signal M1.
已ξMICνV.

CL is turned on to start original paper ejection operation, and paper ejection sensor S3
(15) Start the mateno JAM counter [JcNlo], set the table counter (MJ cN )←2, and then proceed to 5 steps. At 5tep 263, the document advances through the conveyance path a and the paper ejection sensor S3 detects the leading edge of the document until the end of the JAM counter (JCN1O).
Proceed to Le 128BT 8LJB. If the size is correct, the JAM counter (JCNII) up to paper ejection sensor 84 (16)
Start the table counter [hJ CN )
As 4-3, perform the next 5 steps. At step 5264, the paper ejection sensor S4 detects the original light y'J. 1. Monitor the JAM counter [JUNtx:] until it ends, and if it counts up, go to delay JA (stop JA~1■Monitoring'1) ' Proceed to SUB. If it is normal, turn off the signals M3L'W, MICCW, CL, and US at that point, temporarily stop the loading, and stop the first document at the position spanning the roller 6.6b and belt 8. .At the same time, by setting the paper feed permission oJ command, the start of the normal pine movement bh of the second document is commanded, the standby state of 8tep 231 in the normal paper 8U13 in Fig. 22 is released, and the paper feeding command is set, as described above. Start the second page of the manuscript as follows.Shiki et al. start the interval timer [TM7] and set the table counter [k'
JJ CN) ← As 4, proceed to next 5 steps K 0st
At ep 265, the CPU waits for the interval timer (TM7) to end and enters a waiting state until the s1:4'Tt& paper feeding command and paper ejection permission command are set. In Fig. 22, the engineering ship operation of the second manuscript progresses, and 5tep 23
At time 4, that is, at the start of conveyance of the second document, the ejection ir
'F'T lW instruction cassette is inserted, so 8tep 2
At 65, proceed to the next step 1) Reset the L-A total 67 commands and set the JAM counter until sensor S4 Kanehara Yuki exits.
CN12] t starts, signal Macw is turned on, paper discharge operation is started, table counter (gJ ON)
← Next 5 steps as 5 K amoStep 266 determines whether sensor S4 detects the trailing edge of the document (JCN1
Monitor until the end of 2), and if it counts up, it is a staying JA
JAM Rj as M! Proceed to 21T 8υB. If it is normal, it will proceed along the conveyance path ■a and the rotation timer (TMOU'
l':1 and table counter (gJ O
N) ← 6 steps & 5 steps K advance. 5tep 2
67, waits for the end of the post-discharge rotation timer (TMOUT), turns off the signal M3eWt-, resets the paper discharging command, and completes the paper discharging operation. Due to the paper ejection command from the main unit, that is, (
Jg, document ejection number ε) is set, reset the start command shown in Figure 20 above, reset the serial data (in-operation signal), complete all operations, and start tape k. ') 7ri (nJcN:] 4
- fj = 8. It is time to return to step 261.0 If this second document is being fed, the process of paper feeding completion f9LJB in FIG. 27 is being continued in parallel with the first document ejection process, and (The Photon (No. 8) is set, and the copying machine is copying the second sheet.Also, since the second sheet of original is being transferred, it takes 5t.
In ep285, the recycle sensor ttS is turned off, a cycle end signal is output to the copying machine, and the start command is turned off, as shown in Figure 20.
At p 212, he enters the samurai stage state.

Next, the operation for excluding the second original will be explained.

In the case of Jin, the cycle end signal is issued, so
The main body of the copying machine sets the (original discharge signal) after copying the second sheet to perform only paper discharge processing. At that time, 5tep22 was carried out on the exclusion engineering ship S U IJ in Figure 21.
In 1, only the excluded SUB is processed. 1-1 The normal feed SUB etc. are not executed. Positive #SυBIj14 j,! J! Go to Fi figure 25 and perform 5 steps 261 to 267 in sequence s 5t
As mentioned above in ep 267, the operation ends because the (j!A document output number signal is set, and the start command, (
The operation signal) is reset, and the copying machine body checks it and turns off the document ejection signal to complete one cycle of copying the original.

Next, the exclusion/discharge/reverse supply operating pressure will be explained. The treatment of jin is the second step.
The document placed on the platen glass 12 1a of the copying machine is
By the exclusion SUH shown in Fig. 25, the paper is ejected to the conveyance path %11a, and when the leading edge of the document reaches the sensor 84iC (8te
p 264 ')s The exclusion operation is temporarily stopped, and the counter-feeding operation of the next original is started, and the original paper 8UBK in FIG.
After entering and separating p-ra 6, 6ajC, the exclusion operation is resumed at the start of IIR feed li4 (5tep 234), and the ejected document advances from conveyance path ■a to Vla. On the other hand, the document is on the glass surface 11a at the end of the engineering operation, and the document is temporarily stopped there, and processing moves to the inverted SUB shown in Figures 23 and 24, and waits until the parallel exclusion operation ends (8te
p243), restart the reversal 8UB process as soon as it is completed, document tj, transport Y? 5III a ~IY a~Va~■a
-Wa -1a and proceed to the platen glass 12 of the copying machine.
It stops at a predetermined position on the surface, and the photon S shown in FIG.
A copy operation start command is issued at UB.

Also, regarding the anti-engineering ship operation, see step 223 in Figure 21.
The waste is processed by the anti-waste construction vessel SUB shown in .

The original on the platen glass 12 is ejected through the conveyance path 11a by the reverse ejector 8UH shown in FIG. At the time when it is detected (step 274), the anti-discharge operation is temporarily stopped, and the processing operation for the next manuscript is started. %6aKyoshi transport start point (8tep 23
At step 4), the tango anti-discharging operation is started, and the porcelain sheet is placed in the conveyance path v.
It is discharged through a to ■a. On the other hand, the fed document is transported through the transport path 1a.
-1[a] When the machine stops at a predetermined position on the surface of the platen glass 12, the copy operation starts at the paper feeding completion SUB in FIG. 27. Then, the j1 command is output.

Furthermore, regarding the retraction operation, see 8tep2 in Figure 21.
1423. The document processed by the repeated SUB shown in 25 and having the platen glass 12 and IaI/c is; 1423. 24
Inverted 8UBtC shown in the figure)jjR feed path Ill a
~IV a ~V a -Vl a ~ ■ a-tra and a-v, again at the specified position on the platen glass 12 surface 1 [K: Paper feeding is completed in Fig. 27 when stopped. At 5 UBI/C, copying operation starts Output the command.

Next, regarding the anti-discharge paper operation, we will take the case of two-barreled paper as an example.
This will be explained with reference to the p-chart of anti-exclusion SOB shown in FIG. Place a stack of two originals on the document tray L, specify the paper ejection mode from the copying machine, set the (original paper feed signal), and then set the paper stack in step 224 of Figure 21. The action starts. The first manuscript is the second
The process is carried out as described above according to the engineering ship SOB in Figure 2, and when the conveyance path Ia-Ia is followed and it stops at a predetermined position 1a on the platen glass surface of the copying machine body, a reversal permission command is set in 8tep 239, and the sequence 23.24 Figure 1c shows the inverted SUB transfer.

@ In figure 23, tape # ly u yl [TH
NCN] = 0, so at 5tep 241 KN, check the setting of the reversal permission command and start the reversing operation, reset the reversing lever a+b command, set the reversing command, and turn the transport y6 deflection solenoid. Signal SL for turning on
Turn on to start the interval timer (TM4), and set the table color/re[TRNCN) 4-1 to the next (
Z) Missed to 5 tep. In 5tep 242, (TM
4), turn off the drive signal 13K of the brake 92, turn on the drive signal CI of the cutter 85, and set the table counter (TRNCN)←2 to the next step (1) 5te
p IC advances 08tep 243 checks whether the paper ejection command is set and waits for the ejection operation to end, but since the first document is being transported, it is reset and the signal MICCW is turned off. Start the reversal drive of the belt 80, start the 6DJAM counter (JCN3) at the conveyance path 1118, IVat-advance set 85t, set the table run 1 ['rl (NUN) ← 3, and then set the next 5
Step K Proceeds to 08 At step 244, check whether the processor S5 detects the leading edge of the document.
) until it ends (-1 If it ends: @! En JAM
, proceed to JAMttgsw'i' 80B. If it is detected normally, the signal MaCCW is turned off and the roller 9.9
Rotate a.

JAM counter (JC) until the original passes through sensor S5
N, i) and table counter [TRNCN
] 4-4 and proceed to the next 5 steps. 5tep'
245 determines whether Senna S5 detects the trailing edge of the document.
The JAM counter (JCN4) is monitored until it ends, and the end is completed. : t, -c, rAM) t
glT' Proceed to SUB. If normal, signal Maccw
, MtCCW.

(, 'L, SL, 08 are all turned off, document transport is stopped at transport path lea, and the interval timer (T
M5) and table counter (TILNC).
As NI 4-5, proceed to vcStep. Ste'p
246 waits for the end of the interval timer (TM5), turns on the signal M3CW, rotates the rows 29 and 9a, advances the document to the conveyance path va, and starts the JAM counter (JCN5) up to the sensor 86 (18). Next 5 steps as table cuff/ri' (TILNCN) ←6
Proceed to. Btep247 monitors whether the sensor S6 detects the original plane until the end of the JAM counter (JCN5), and when the end of the JAM counter (JCN5), the JAM 18B is determined as a late JAM.
Proceed to T 5LAB. If normal, the original is on roller 10
．． From lOa, the conveyor path ■ak passes through the roller 11. l'la
In the same way, start the JAM kakunta (JeN6) 4 until the document comes out to the sensor S6, and proceed to the next 8 steps as the table cuff/ri[゛[1几NCN]←7. 5
In step 248, it is monitored until the end of the JAM counter (JeN6) to see if the seventh t86 detects the trailing edge of the document.
What if it ends? JAM Le gsn'rs as seasonal JAM
If 4B to uB is 0 stop 'M, signal M3CW tl- is turned off, the document is stopped on the transport path vIa, the inter/cruel timer ['rM6] is started, and the table counter [TILNeN] is set to ←8 for the next 8Leps. Proceed to o
8te9249 r, L interval timer [:TM6
Waiting for the end of ], signal M3eCW,
All SLs are turned on to start driving, the document is advanced to the transport path ■a by the four-ra lO, lOa, and the sensor S4
Start the JAM counter (JUN7) up to the tape k f) Rough evening [TILN, CN34-9 and proceed to the next 5 steps K. In Figure 24, 5tep
251 determines whether sensor S4 detects the leading edge of the document J
The AM timer [JCN7] is monitored until it ends, and when it ends, the process proceeds to JAMLEW8ET8tJB as a delayed JAM. Next 8 tep K dim as normal 4-10. 8t
In ep252, the JAM counter (JCN9) determines whether the sensor S3 detects the tip of the document moving along the conveyance path ■a.
will be monitored until the end of the JA
Ml (1gsg'r Proceed to SOB. If it is normal, then sensor S3 is the original (JAJi timer until 31 exits) [
JcNc+'] and start the table counter (T
ILNCN) 4-11 +! : Next 5 steps &C Proceed. The 5tcp 253 checks whether the sensor S3 detects the trailing edge of the original until the JAM kakunta (JCN9) ends. If it is normal, the original is on roller 6.6
It passes through the transport path b and proceeds along the transport path a, which is dependent on the drive of the belt 8. At this point, the signal C8 is turned on and the clock input to the interrupt terminal iNT is switched from the transport lock to the belt clock as described above. Do not change the correspondence between the clock and the conveyance distance (set it to 1β, and set the registration counter (aucr42) corresponding to the conveyance distance up to the point 6 on the platen glass surface of the copier body Let's start, cheap color yp (TILNeN)←
QStep 254 to proceed next 5 steps K as l 2
Te is the end of the register counter (jLGcN2).
>2c,'IMqMICWyF7. (, 'L off, H
Turn on K to set the correct stop position, reset the command during reversal, and return the table counter (NCN) to the rice to complete the reversal process.

The paper forming sequence is completed with this tilt and beak, and the processing moves to the 27th feeder, Nagi Mitsuko 8U13, and as mentioned above, (original high feeder'-16ryu (g-number) is set, Start the copying operation of the first page of the copying machine.

When the 0 copy, IIIJ11'I:, which explains the creation of the first page of the 黄tζ- (Zume J Claw 4Ai Copy Range Iron) and the paper-forming operation of the second manuscript, is completed, In the copying machine, set the copying machine (No. Start from

In the anti-exclusion 5U13 shown in FIG. 26, the table counter (MJCN) is set to 0, so the 5tep
271 processing is performed. Paper discharge /f at 8tep271
Since the town command has been set in step 234 of FIG. 22, the process proceeds to the next step, resets the F enable command for paper discharge, resets the paper feed permission command 9, resets the reversal permission command, and prohibits the reversal operation of the factory ship 9. Set the ejecting command, turn on the signal SL, advance the document sheet J1. , proceed to the next 5 step. At 5 step 272, the interval timer [TM
Wait for the end of 01 - CC No. 6 MICCW is turned on, CL is turned on, 1 is started, and the conveyance path Ill a
;f, '4 JAM counter up to sensor S5 (J,
CN5) and table color/ri (EJ CN
)←Proceed to the next 5 steps as 2. At 5tep273, monitor whether sensor S5 detects the tip of 19 digits until the end of JAM counter/re (JCN3), and then delay J
Proceed to JAM Le 1128?3T 8013 as AM.

If it is normal, turn on the issue number MaCeWr and turn on the roller 9.9
Rotate a to advance the document to the conveyance path ■a, and sensor S5
JAM counter (J(,'N4) until the original is removed)
t-Start, double counter (gJ CN)
← Set to 3 and proceed to the next 5 steps. 5tep 274 monitors until the end of the JAM counter (JCN4) whether or not the sensor S5 detects the document charge Bk, and when it ends, the oil cylinder JA
As M, proceed to JAIV [Legsii'r SUB. If normal, the signals M3CCWF-), MtCeW, +i-
7. CL Me 7. The document is stopped on the conveyance path (a) by turning CL off and CS off. At the same time, by setting the paper feed 1rF 51 command, the start of the paper forming operation for the second sheet of the original is commanded, the timing state of 8tep231 in Fig. 22 is canceled, and the 4't1 order is set during paper feeding to produce two sheets. 0 Start separating the originals
Furthermore, the interval timer ('rM5) is started, and the table timer (j4JcN) is set to ←4 for the next 5teI.
) Proceed to 08tep 275 Te waits for the end 1 of the interval timer (Ti\(5)), and after completion, it enters the timing state until the paper feeding command and ejecting command are set. Meanwhile, two sheets The paper feeding operation of the second original progresses, and it reaches 8te in Figure 22.
The paper ejection permission J index is set on page 234, so 5
In step 275, proceed to Kyu and reset the paper ejection permission command,
Turn on the signal M3CW and move the 111-sheet document from transport path ■a to V.
a, and set the JAM timer (JeNs) up to sensor S6.
) and table counter (EJCN) ←5
Go to next 5tep IC 08tep 276, say? 86 KaIg, 4% Q'J4 'k Inspection'
It monitors until the end of the JAM timer (JCNs) to see if E3 is executed, and if it ends, JAMRE8 is set as a delayed JAM.
1: 'I' SUB [Proceed. If normal, the original treetop roller 10. lOa K kaka υ, transport j6 Vl a tD direction ic, iHJ)-, sensor S6 is started at J AM counter (JCN6) t'' until M oak can handle it,
Table counter (nJcN)←6 and next 5tep K
Proceed o In S@ep277, the sensor S6 monitors whether or not the sensor S6 detects 1 after the original document until the end of the JAM kakunta (JeN6), and if it ends, the process proceeds to rhtAl;IT8tlB as a retained JAM. If it is normal, the original: tf4 will proceed along the route vIa.

Roller 11. lla IfC is applied, and the rotation timer ('1'+vtULJ'l') is started after paper ejection.
Proceed to the next step as the table counter (1 (J CN )←7. At 5 step 278, the rotation after paper discharge (TMO,
Wait for the end of UT'], turn off 164+M3CW, stop the paper ejection drive, reset the paper ejection command, and then start the cheap color data [k! , JCN〕←e K L te 8
tep 2711/C return period (¥).On the other hand,
The paper feeding process restarts the reversing operation at 5tep 243 in FIG. 23 as it is waiting for the reset of the paper discharge command, and as described above, the paper feeding photon processing is performed from 5tep 281 in FIG. Command the main unit to copy the second original.Next, for the second original to eject the second original, the original, 1M4JF paper (No. 1) must be set from the copying machine main unit as described in P1'+1. Perform only paper ejection operation with , and process with anti-ejection SUB in Fig.
Go to step 4, go to step 5 271-278, go to step 5
Since (manuscript discharge No. 18) is set in p278, reset the start command, reset the (in-operation signal), and end all operations.0 Next, jam processing will be explained.
r BUk3 (D operation is shown in FIG. 28.

At 8te'p 291, all loads are d-7 and J
All commands during AJi are turned on, and the signal J is output from the output port ON.
AMt- is turned on and the JA lamp 24 is lit.

Set the serial data (JAM signal) in the history,
Next, in 5tep 292, it is checked whether each document detection sensor Sl to S6 and ES is detecting a document, and if any one is detected, F! , don't proceed J'AM
agsg'r is not done. The operator removes the original and turns off the original detection signal from all sensors, resulting in 5 steps.
293 VCam 0 Here, the opening/closing processing of the sin by the Tsukudasaku button is determined and when it is performed, the process proceeds to step 5 294 and the JAMA phase is reset, and the output port 01. °lit issue JAM from OFF, (JAq+a issue) reset,
All commands are reset and all counter timers are reset to complete the JAM/hmlT process.

Next, the document size detection process will be explained.

31st rgK Yori 5XZECK SUB Nofi
'ao'l k line').

The fed document is counted by the [document counter] while the sensor S2 is detecting the document M4 by the conveyance lock and belt clock, that is, from the leading edge of the document to the trailing edge. Compare the data of the [Original Size Counter] with the data of the predetermined original sizes A3 to B5 with OJc where the corresponding data is stored, and determine the size of the original.For example, if it is A4, 135 file data〉 [Original size counter] ≧ A4 data (CJJXN size signal) which is the serial data sent to the main body of the copying machine can be determined. In preparation for detecting the size of the next fed document after clearing the document size counter, the size of the document is determined one by one. Also, at this time, when the original whose size has been detected is subsequently reversed or ejected, each sensor receives +f! A J-JAM counter is set, and by adding α to the measured original size data to the data of the counter, a more accurate JAM check can be performed.

Next, the serial transfer method will be explained. FIG. 30 shows a flowchart for performing serial communication with the main unit as described above. At θp301, it is checked whether a request signal REQ, which is a serial communication request signal from the main unit, has been input, and if input is present, serial communication is started. .

The data storage register (SI
8 bits of serial transmission data (F
LDO1) (FLDO2) (FLDO3) are stored according to the contents of the counter (5OCN), the contents of the register (StREG) are output to the SO terminal, and the acknowledge signal AGK, which informs the main body of the completion of serial communication preparation, is turned on. Here, serial communication between main body B and this device A is automatically performed using the M (30M 43 N method).
P! A check is made until the serial 8-bit communication is completed at +03, and 8-bit data is exchanged. 5t
In op304, acknowledge signal A is sent at the end of serial communication.
Microcomputer 12 turns off OK and receives data from the main unit.
The data from the 81 terminal of 0 is stored in the register (SiREG) and the contents are stored as the serial reception data 8tw
0 to be stored in (FLDii) of it, and the contents of the aforementioned counter (5OCN) are incremented, and (SOON
)=3, set (5OCN)←0 again and update the contents of (5OCN) sequentially for each serial communication to 5top
Serial transmission data to be stored in the 5th register (StRli:G) sequentially (FLDOl) → (FI, DO2)
→(FLDO3)→(FLDOl)...0 Also, if there is no request signal REQ input in 5top301, d serial/l/communication is not performed and 5top305 *
Proceed to 5 step 306 e Stop 3 Q7 (Fl, DOl
) (FLDO2) In 08top 305, which is the 5top 5top that sets/resets the data in (FLDO3), the data (original detection signal) in (FLDO2) is set depending on whether or not the entrance document seventh t (ES) 20 detects the original. / Reset through o 5tep 306 to see if the buzzing open/close switch EMS)
3) Set/reset the data (shining open signal) in step 307 of L drive motor (Ml) 82.
(M3) Depending on whether 97 is turned on or not (FLDOl
) Set/reset the data (driving signal).

31 to 69 are timing charts of each part of the RDF in each operation mode controlled according to the above-mentioned flowchart.
Figure 2 shows the case in which the first original is fed in reverse, Figure 36 shows the case in which the final original is ejected in normal rotation, Figure 64 shows the case in which the final original is ejected in reverse, and Figure 35 shows the case in which the original is ejected. In case of ship operation,
Fig. 66 shows the case of the document displacement operation, Fig. 67 shows the case of the original anti-discharge operation, Fig. 38 shows the case of the original anti-discharge paper operation, and Fig. 39 shows the case of the original retraction operation. Each case of operation is shown.

Although a reflective sensor is used in the above embodiment, a transmissive sensor, a microphone switch, a reed switch, etc. may also be used.

Further, although the interrupt terminal 11 of the microcomputer is used as a counting means for counting by a program, it is also possible to use a hardlithic circuit using a counter IO.

Also, although the configuration is such that one clock is selected by the switching means and inputted to the interrupt terminal R, the switching means is removed and each click is all input to the input hoard, so that the program of the microcomputer is changed. It is also possible to satisfy this purpose by switching and counting at 0.Also, the clock signal is generated by driving the clock signal conveying means, but the clock signal is generated by a pulley or the like that rotates as the document is conveyed. Effects As explained above, according to the present invention, it is possible to prevent misalignment, skew, etc. of the sheet by always creating a state where the conveyance is stopped for a certain period of time every time the sheet conveyance direction is switched. in,
This has the advantage that it is possible to reliably switch the conveyance direction, and at the same time, it can be realized by simple sheet support.

Furthermore, since the drive source for trapping and conveyance is switched between forward and reverse directions after a certain period of time, the rotation of the drive source (for example, a motor) can be reliably stopped before the direction can be switched, which has the effect of extending the life of the drive source.

Note that in this embodiment, the case of document conveyance was explained, but
The present invention is not limited to this, and can also be applied to the conveyance of copy paper, etc.

14 shows the control circuit of the copying machine shown in FIG. 1, FIG. 15 shows the circuit configuration of the line receiver, and FIG. 16 shows the line driver circuit. A diagram showing the configuration, FIG. 17 is a diagram for explaining the serial transfer method, FIG. 18 is a timing chart of each signal of serial data for each operation of the double-sided document circulation device and the copying machine body, and @FIGS. 19 to 30 are diagrams for explaining the serial transfer method. Control 74 of the double-sided document circulation device (Figures 31 to 39 are timing charts for each operation mode of the double-sided document circulation device.

In the figure, person is the double-sided document circulating device, B is the copying machine body,
C is the sorter, 1 is the Haraaki mounting stand, 8 is the belt, 16-20
is a sensor, 21 is a pulse motor, 22 is a partition arm,
80, 82, 97゛ are motors, 85 is a clutch, 92 is a brake, 93, 103 is a clock disk, 95, 105
107 is a photoelectric sensor, 107 is a switching solenoid, and 120 is a microcomputer.

8-1 Flash Figure 3-2 %9-1 Figure (3) 0ru2 9th~? Figure π-1 Procedure Amendment B (Voluntary) 29 Name of the invention Sheet reversing device 3, Relationship with the person making the amendment Patent applicant address 3-30-2 Shimomaruko, Ota-ku, Tokyo Name (100)
)Representative of Canon Co., Ltd. Ryu Kaku Part 4, Agent address: 3-30-25 Shimomaruko, Ota-ku, Tokyo 146, Drawings subject to amendment 6, Contents of amendment Nos. 22, 24, 25, 32 of the drawings. Correct Figure 36 as shown in the attached sheet.

Claims (1)

[Claims] A sheet reversing device for reversing a sheet by switching the conveyance direction of the sheet, characterized in that the conveyance is stopped for a certain period of time each time the conveyance direction is switched.