JPH077217B2 - Copier with printing function - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine having a printing function, and more particularly to a copying machine having a printing function such that a printer body is provided with a printer.

BACKGROUND ART A copying machine is used to copy a document in an office.
It is essential. When a computer is used in such office, a printer that outputs the calculation result of the computer is required. Conventionally, such a copying machine and a printer are separately prepared and arranged.

In order to solve such a problem, other prior arts include, for example, Japanese Patent Laid-Open Nos. 56-164672 and 56-164663.
As is disclosed in Japanese Patent Publication No. JP-A-2003-242, there is a well-known configuration in which a recording unit and a reading unit are provided in upper and lower two stages in one body, and image information read by the reading unit is copied and recorded in the recording unit.

Problems to be Solved by the Invention In the other prior arts described above, the installation space is large, and therefore, a copying machine having a printing function has been conventionally desired.

An object of the present invention is to make it possible to reduce the installation space, and to selectively feed paper to a printer either of recording paper for a printer or sheet copy paper for copying. It is an object of the present invention to provide a copying machine having a print function that can be performed.

MEANS FOR SOLVING THE PROBLEMS The present invention relates to a copy paper storage unit 19 in which a sheet-shaped copy paper 18b is stored, and a copy paper feed roller for feeding the copy paper 18b in the copy paper storage unit 19. And a recording paper storage unit 38 for storing continuous recording paper 18a while performing copying on the copying paper 18b fed from the copying paper storage unit 19 by the copying paper feed roller 20. Recording paper 18a in paper storage 38
In a copying machine having a printing function, which is provided with a recording paper feed roller 39 for feeding the recording paper and prints on the recording paper 18a fed by the recording paper feed roller 39 from the recording paper storage section 38. The copy paper storage unit 1 is provided on one side 1a of the machine body 1 of the copying machine.
9, recording paper storage 38 and recording paper 18a and copy paper 18b
A tray 40 for accommodating the above is provided so as to partially project from the one side portion 1a to the outside, and the printer 35 and the copy paper 18b are fed to the printer 35 inside the one side portion 1a of the machine body 1. Copy paper feeding means 45 for printer, the paper feeding roller 20 for copying paper, and the copy paper 18b fed by the paper feeding roller 20 for copying paper are selectively switched to the copy paper feeding means 45 for printer and guided. A switching piece 21, a detection means 51 for detecting the recording paper 18a fed by the recording paper feed roller 39, and the recording paper feed roller 39, respectively. Printer 35 on recording paper 18a
When printing by, the paper is rotated in a predetermined paper feeding direction H, and when printing is performed on the copy paper 18b by the printer 35, the paper is rotated in a direction opposite to the predetermined paper feeding direction H to copy the leading end of the recording paper 18a. A copying machine having a printing function characterized by retracting to a detection means 51 located at a position away from a passage of the paper 18b.

Operation According to the present invention, the recording paper 18a in the recording paper storage unit 38 is sent to the printer 35 for printing by the recording paper feed roller 39, and the copy paper 18b in the copy paper storage unit 19 is also printed. Is fed by the copy paper feed roller 20 to perform copying. When it is desired to print on the copy paper 18b, the switching piece 21 is selectively switched so that the copy paper 18 fed from the copy paper storage unit 19 is supplied.
b is guided to the copy paper feeding means 45 for printer, and the printer 34 prints on the copy paper 18b. The recording paper 18a and the copy paper 18b thus printed by the printer 35 are discharged onto the tray 40. The recording paper 18a thus discharged onto the tray 40 is cut off at an arbitrary position outside the copy paper. The copy paper storage unit 19, the recording paper storage unit 38, and the tray 40 are provided on one side of the machine body 1 of the copying machine.
It is provided so as to partially project to the outside from 1a. Further, the printer 35, the copying paper feeding means 45 for the printer, the copying paper feeding roller 20, the recording paper feeding roller 39, the detecting means 51, and the switching piece 21 are located more than the one side portion 1a of the machine body 1 of the copying machine. It is provided inside.

With such a configuration, when printing is performed on the copy paper 18b by the printer 34, the leading edge of the recording paper 18a is placed on the copy paper 18b.
Detection means 51 returned to the recording paper storage section 38 side from the passage path of
Since the copy paper 18b can be fed using the same passage as the recording paper 18a by retracting to the position detected by the copy function, the copy function can be achieved without increasing the size of the copying machine body 1. It is possible to realize a copying machine having a printing function.

Embodiment FIG. 1 is a sectional view of the entire electrostatic copying machine according to an embodiment of the present invention. A horizontal transparent plate 2 is fixed to the top of the machine body 1. On this transparent plate 2, the original 3 to be copied
Is pressed by the cover 4. An exposure device 6 is provided to form an original image of the original 3 on the right cylindrical photosensitive member 5. The exposure device 6 includes an exposure lamp 7 that irradiates the original 3 with light, a reflecting mirror 8 that guides the light of the exposure lamp 7 to the original 3, reflecting mirrors 9, 10, and 11 that reflects the original image, and a through lens. 12 and a reflecting mirror 13 for guiding an original image to an exposure area 14 on the photoconductor 5. A charging corona discharger 16 is provided around the photoconductor 5 on the upstream side in the rotation direction 15 of the photoconductor 5. The electrostatic latent image formed in the exposed area 14 is visualized as a toner image by the magnetic brush developing device 17.
The sheet-shaped copy paper 18b is a secondary paper feed for copying that forms a pair from the copy paper feed cassette 19 mounted on the one side portion 1a of the machine body 1 via the primary paper feed roller 20 and the switching piece 21. The sheet is fed by the roller 22, is conveyed by the pair of conveying rollers 23, 24, is further guided by the guide means 25, and the toner image is transferred onto the copy paper 18b by the transfer corona discharger 26. In the vicinity of the transfer corona discharger 26, a peeling corona discharger 27 is provided downstream of the transfer corona discharger 26 in the rotation direction 15 of the photoconductor 5.
Is provided, the copy paper is peeled off from the photoconductor 5 and is conveyed to the fixing device 29 by the endless conveying belt 28 and fixed there.
The sheet is discharged onto the tray 31 mounted on the other side portion 1b.

In the exposure operation, the optical device 6 excluding the reflecting mirror 13 and the through lens 12 moves in the direction of arrow 32 to reach the end position shown by the phantom line, and then moves in the direction opposite to arrow 32. And return to the original state.

A printer 35, a printer primary sheet feeding means 71 for feeding the recording sheet 18a for the printer, guide members 70 and 41, and a tray are provided above the copy sheet feeding cassette 19 on one side 1a of the machine body 1. 40
The printer 35, in which the and are arranged, includes a print head 35 and a platen 37. The print head 36 and the platen 37 are built in the machine body 1. The primary paper feeding means 71 includes a recording paper feeding cassette 38 in which recording papers 18a continuously connected by perforations are folded and stored for each perforation, and a printer in which a plurality of protrusions are formed on the outer peripheral surface. Primary paper feed roller
Including 39 and. The recording paper 18a in the recording paper feed cassette 38 is
The print head 36 is guided by the paper feed roller 39 through the guide member 70.
The recording paper 18a fed between the platen 37 and the platen 37 and printed by the print head 36 is discharged to the tray 40 via the guide member 41.

A printer secondary sheet feeding means 45 is provided between the sheet feeding roller 20 and the printer 35. Secondary paper feeding means for this printer
Reference numeral 45 denotes a guide plate 46, 47, an endless conveyor belt 48 arranged above the guide plate 46, 47, and a secondary paper feed roller 49 for a printer.
And a holding plate 50. The guide plates 46 and 47 form a guide path for supplying the copy paper 18b to the paper feed roller 49 side by the switching piece 21 switched to the position shown by the phantom line in FIG. The switching piece 21 is driven and switched by an electromagnetic solenoid (not shown), and the free end portion 21a of the switched guide piece 21 is located inward of the other end portion 47a of the guide member 47. . Therefore, copy paper feed cassette
Copy paper 18b in 19 is smoothly fed along the guide path.

The conveyor belt 48 is wound around the lower roller 54 and the upper roller 53. A straight line connecting the axis of the upper roller 53 and the axis of the lower roller 54 is inclined toward the one side portion 1a of the machine body 1 as it goes upward. Therefore, the transport section of the transport belt 48
Similarly, 48a also has one side portion 1a as it goes in the transport direction A.
It is inclined in the direction close to. A pressing member 50 is formed near the carrying section 48a and extending from the carrying section 48a to the vicinity of the detecting means 52. This presser member 50
The distance between the carrier and the transport unit 48a is selected to be less than 2 mm, for example.
Therefore, the copy paper 18b fed from the paper feed roller 49 is
It is clamped by the frictional force between the pressing member 50 and the transport portion 48a of the transport belt 48, and moves in the transport direction A of the transport belt 48. At this time, the printer secondary paper feed roller 49 is in contact with the vicinity of the lower portion of the transporting portion 48a of the transport belt 48, and therefore, as the printer secondary paper feed roller 49 rotates, the copy paper 18b transports with the pressing plate 50. It is supplied between the printer head 36 and the platen 37 via the portion 48a.

A recording paper detection means 51 is provided in the recording paper conveyance path between the print head 36 and the temporary paper feed roller 39. Print head 36
Another detecting means 52 for detecting the recording paper 18a or the copy paper 18b is provided near the downstream side of the recording paper conveyance direction. When printing is performed using the recording paper 18a, the recording paper 18a follows the conveyance path indicated by reference numeral l1. on the other hand,
When copying is performed using the copy paper 18b, the copy paper 18b is discharged to the tray 31 by following the conveyance path indicated by the reference numeral l2. When printing using the copy paper 18b,
The copy paper 18b follows the conveyance path indicated by the reference numeral l3 and is discharged to the tray 40.

FIG. 2 is a block diagram showing a control mechanism of the transfer type electrostatic copying machine shown in FIG. The output of the external processing circuit 60 is sequentially given to the printer processing circuit 62 via the interface 61. The processing circuit 62 controls the printing operation in response to the output from the external processing circuit 60. On the other hand, the copying operation of the copy paper 18b is controlled by the processing circuit 63. The processing circuit 63 and the processing circuit 62 are electrically connected to each other, and an interrupt signal necessary for printing using copy paper is applied from one processing circuit to the other processing circuit.

FIG. 3 is a flowchart showing the control operation of the printer processing circuit 62. From step n1 to step n2, it is judged by the detection means 52 whether or not the recording paper 18a or the copying machine 18b is detected.
To step n3. In step n3, it is judged whether or not the recording paper 18a is detected by the detecting means 51, and if it is detected, the process proceeds from step n3 to step n4. At step n4, it is determined whether or not the recording paper 18a is used for printing. If printing is to be performed on the recording paper 18a, then the process proceeds to step n5. In step n5, the printer primary paper feed roller 39 and the platen 37 are rotated by one line to be printed, and the recording paper 18a is supplied between the print head 36 and the platen 37. Then, in step n6, the print head 36 is driven and the printing operation is performed. Then, the process proceeds to step n7, where it is determined whether or not the printing operation is completed, and when it is not completed, the process returns to step n5 again, and then step n5, step
When the printing operation is completed by sequentially repeating the closed loop of n6 and step n7, the process proceeds to step n8 and all the printing operations are completed.

When printing is not performed with the recording paper 18a in step n4, that is, the copying paper 18b in the copying paper feeding cassette 19 is
When printing is performed using, the process proceeds from step n4 to step n9. In step n9, the primary paper feed roller 39 is rotated in the direction opposite to the arrow H direction, whereby the recording paper 18a
Rewind to the paper feed cassette 38 side. Then, the process moves from step n9 to step n10, and it is judged whether or not the detection means 51 has detected the recording paper 18a. That is, the primary paper feed roller
By the reverse rotation of 39, the detecting means 51 rewinds the recording paper 18a to a state where it is not detected. When the detecting means 51 is in a state where it does not detect the recording paper 18a, the process moves from step n10 to step n11, and the copy circuit 1 is transferred from the processing circuit 62 to the processing circuit 63.
An interrupt signal for feeding 8b to the printer 35 side is derived.

In step n12, it is determined whether or not a paper feed enable signal indicating that the copy paper 18b is ready to be fed to the printer 35 is given from the copy processing circuit 63 to the printer processing circuit 62. That is, even when the interrupt signal is given to the processing circuit 63 in step n11, when the copy paper 18b is in the copying operation, it waits until the copy paper 18b in the copying operation is discharged, and when the discharge is completed, the copy is completed. The copying paper 18b stored in the paper feed cassette 19 is ready to be supplied to the printer 35 side. When you are in this position,
A paper feed enable signal indicating that the copy paper 18b can be supplied to the printer 35 side is given from the processing circuit 63 to the processing circuit 62.
When such a feed enable signal is given to the processing circuit 62 in step n12, the process proceeds to step n13 and the conveyance belt 48
Is driven. Along with this, the switching piece 21 is switched to the state shown by the phantom line in FIG. 1, the paper feed roller 20 is rotationally driven by the processing circuit 63, and the uppermost copy paper 18b in the paper feed cassette 19 is guided by the guide member. Conveyor belt passing between 46 and 47
It is conveyed by 48 and is fed to the printer 35 side. Then, the process proceeds to step n14, where it is judged whether or not the detecting means 52 detects the copy paper 18b fed to the printer 35 side,
When it is detected, the process proceeds to step n5, and a predetermined printing operation is performed through steps n5 to n8.

When the detecting unit 52 does not detect the paper fed to the printer 35 in step n2, the process proceeds to step n15, and it is determined whether the paper fed to the printer 35 is the recording paper 18a. Specifically, this judgment is made by judging the command given from the external processing circuit 60 to the processing circuit 62 via the interface 61. When the command given to the processing circuit 62 is the content to use the recording paper 18a, the process moves to step n16, the primary paper feeding roller 39 is rotationally driven in the arrow H direction, and the paper is detected by the detecting means 52 in step n17. The recording paper 18a is continuously fed until it is detected. And step n17
When the presence of the paper is detected by the detecting means 52 in step n5, the process proceeds to step n5, and the paper feed roller 39 and the platen 37 are rotated by one line to perform the paper feed corresponding to only one line. Then, in the same manner as described above, printing is performed by the print head 36 in step n6, the printing operation is performed until the predetermined printing is performed by following the closed loop of steps n5, n6, and n7, and when the printing operation is completed, the process proceeds to step n8. After that, all the operations are completed.

When the detecting means 51 does not detect the sheet in step n3, the process proceeds to step n18. At this time, the copy paper 18b is already supplied to the printer 35. At step n18, it is judged whether or not the command from the external processing circuit 60 given to the processing circuit 62 is the content to use the recording paper 18a. If the command is to use the recording paper 18a, the process proceeds to step n19. Platen 37 is indicated by arrow F by circuit 62
The copy paper 18b which has been rotated in the direction and already supplied to the printer 35 is discharged to the outside. When the detecting means 52 detects that no paper is present in step n20, the process proceeds to step n16, and thereafter, the recording paper 18a in the recording paper feed cassette 38 is supplied to the printer 35 and printed as described above. The operation is performed.

If the command given to the processing circuit 62 in step n18 is to use the copy paper 18b, step n5
Then, predetermined printing is performed on the copy paper 18b already supplied.

When the command given to the processing circuit 62 in step n15 is the content to use the copy paper 18b, the process moves from step n15 to step n11. After that, the copy paper 18b is fed to the printer 35 as described above, and then the printing operation is performed to perform a predetermined printing on the copy paper 18b.

FIG. 4 is a flow chart showing the control operation of the processing circuit 63. From step m1 to step m2, the copy paper 18b in the paper feed cassette 19 is fed by the first paper feed roller 20 and the second paper feed roller 22. At this time, the switching piece 21 is located in the state shown by the solid line in FIG. Then, in step m3, the photoconductor 5 is charged by the corona discharger 16, and at the same time, the exposure device 6 performs the exposure operation. Then, in step m4, the electrostatic latent image on the photoconductor 5 is developed by the magnetic brush developing device 17, and in step m5, the transfer corona discharger 26 performs the transfer operation. In step m6, the peeling corona discharge is performed. Copy paper 18b by electric appliance 27
Is peeled off from the photoconductor 5 and fixed by the conveyor belt 28.
It is sent to the sheet 29 and is heat-fixed, and is ejected to the external tray 31 by the sheet ejection roller 30.

During such copying operation, the processing circuit 63 is operated at step m7.
Then, it is determined whether or not an interrupt signal for printing on the copy paper 18b is given from the processing circuit 62. If the interrupt signal is not given, the process proceeds to step m8, and it is judged whether or not the copying of the set number of sheets has been completed.If the set number of sheets has not been reached, the process returns to step m2 and steps m2 to m8 are repeated. When a series of operations are repeated and the set number of copies have been made, step m9
Then, the copying operation ends.

When the interrupt signal is given in step m7, the process proceeds to step m10 and the electromagnetic solenoid (not shown) is driven to switch the switching piece 21 to the state shown by the phantom line in FIG. Then, the process proceeds to step m11, and when the copy paper 18b which is already in the copying operation is discharged to the tray 31, a paper feed enable signal is derived to the processing circuit 62. Then, in step m12, only one copy paper 18b in the paper feed cassette 19 is fed to the printer two-character paper feed roller 49 side. Then, at step m13, an electromagnetic solenoid (not shown) is activated after a predetermined time as the feeding time of one copy sheet from the start of feeding the copy sheet 18b in the paper feed cassette 19 between the guide members 46 and 47. The switching piece 21 stops and returns to the original state shown by the solid line in FIG. Then move to step m8.

Since the copying machine is equipped with the printer in this way, the installation space can be made much smaller than in the past.

Further, it becomes possible to print by selectively switching the recording paper and the copy paper.

As described above, according to the present invention, one side portion of the machine body 1 of the copying machine
A copy paper storage unit 19, a recording paper storage unit 38, and a tray 40 are provided by partially projecting to the outside of 1a, and a printer 35 and a printer copy paper are provided inside the one side 1a of the machine body 1. Since the paper feeding means 45, the copy paper feeding roller 20, the recording paper feeding roller 39, the detecting means 51 and the switching piece 21 are provided, the recording paper 18a is cut at an arbitrary position outside the copying machine. Even if the copy paper 18b is fed using the same passage as the recording paper 18a and the printer 35 can print on the copy paper 18b instead of the recording paper 18a, the size of the copying machine can be increased. It is possible to provide a copying machine having a copying function and a printing function without any problem.

[Brief description of drawings]

1 is a sectional view of the entire transfer type electrostatic copying machine according to an embodiment of the present invention, FIG. 2 is a block diagram showing a control mechanism of the copying machine shown in FIG. 1, and FIG. 3 is a processing circuit for a printer. FIG. 4 is a flow chart showing the control operation by 62, and FIG.
6 is a fuller chart showing the control operation by the. 1 ... machine, 1a, 1b ... side, 19,38 ... paper cassette,
20,22,39,49 …… Feeding roller, 21 …… Switching piece, 35 …… Printer, 36 …… Print head, 37 …… Platen, 40 …… Tray, 45,71 …… Feeding means, 48 ...... Conveyor belt, 50 ……
Pressing member, 51,52 ... Detecting means, 60,62,63 ... Processing circuit

Claims (1)

[Claims] 1. A copy paper storage unit 19 in which a sheet-shaped copy paper 18b is stored, and a copy paper feed roller 20 for feeding the copy paper 18b in the copy paper storage unit 19, and a copy paper storage unit. A copying paper 18b fed by the copying paper feed roller 20 from the unit 19 is used for copying, and a recording paper storage unit 38 in which a continuous recording paper 18a is stored, and a recording paper in the recording paper storage unit 38. 18a
In a copying machine having a printing function, which is provided with a recording paper feed roller 39 for feeding the recording paper and prints on the recording paper 18a fed by the recording paper feed roller 39 from the recording paper storage section 38. The copy paper storage unit 1 is provided on one side 1a of the machine body 1 of the copying machine.
9, recording paper storage 38 and recording paper 18a and copy paper 18b
A tray 40 for accommodating the above is provided so as to partially project from the one side portion 1a to the outside, and the printer 35 and the copy paper 18b are fed to the printer 35 inside the one side portion 1a of the machine body 1. Copy paper feeding means 45 for printer, the paper feeding roller 20 for copying paper, and the copy paper 18b fed by the paper feeding roller 20 for copying paper are selectively switched to the copy paper feeding means 45 for printer and guided. A switching piece 21, a detection means 51 for detecting the recording paper 18a fed by the recording paper feed roller 39, and the recording paper feed roller 39, respectively. Printer 35 on recording paper 18a
When printing with, the printer rotates in a predetermined paper feed direction H, and when printing with the printer 35 on the copying machine 18b, it rotates in a direction opposite to the predetermined paper feed direction H to copy the leading end of the recording paper 18a. A copying machine having a printing function, characterized in that it is retracted to a detecting means 51 located at a position away from the passage of the paper 18b.