JPH04133922A - recording device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] <Field of Application in Industry> The present invention relates to a recording device such as an electronic typewriter, a copying machine, or a printer that separates and feeds sheet materials one by one to record. It is.

<Prior Art> Conventionally, recording devices such as electronic typewriters and printers are equipped with sheet material feeding devices for automatically feeding sheet materials. This allows continuous printing by setting several dozen sheets at a time and automatically feeding them one by one.

In general, a method for separating and feeding a bundle of sheets one by one is to separate and feed only one sheet using a pair of separation claws that engage the left and right ends of the sheet material in the feeding direction. Either the separation claw method or the gap separation method in which a gap is created between the sheet material to be fed and the autumnal equinox, and only one sheet is separated and fed by the gap is well known.

<Problem to be solved by the invention> However, the sheet material that can be used in the above feeding method is
In order to ensure separation of the sheet materials, the stiffness and thickness of the sheet materials were limited.

Therefore, when feeding stiff sheet materials such as envelopes or thick paper such as postcards and Christmas cards, it is necessary to install a special feeding device or manually feed them to the recording means. The types of sheet materials that can be fed are limited.

The purpose of the present invention is to solve the problems of the prior art described in 1. A thin plate-shaped elastic member is provided in the gap forming part in the gap separation method, and the gap is automatically adjusted according to the characteristics of the sheet material to separate and feed the material. The objective is to provide a recording device that can be used to transmit data.

<Means for Solving the Problems> A typical means that solves the problems of the prior art described in 1. and is applied to the embodiments described below is a first method for stacking sheet materials in a feedable manner. a second feeding means, a platen for conveying the sheet material fed from the first and second feeding means, and a recording means for forming an image on the sheet 141 according to image information; A first driving means for driving the platen, a second driving means for selectively driving the first and second feeding means, and between the first and second feeding means and the platen. and a control means for controlling the drive of the first drive means based on a detection signal from the second detection means, and the second feeding means , a feeding rotary body that feeds the sheet material;
The apparatus is characterized in that it has a claw member that operates in a direction perpendicular to the sheet feeding direction near the feeding rotary body, and a thin plate-like elastic member that is disposed to face the claw member.

According to the above configuration, the gap formed between the thin elastic member and the sheet loading surface is adjusted depending on the type of sheet material by the elastic force of the thin elastic member, and the gap is adjusted one by one depending on the type of sheet material. Can be separated and fed.

<Embodiment> Next, an embodiment in which the above-mentioned means is applied to a serial type bubble-gent recording apparatus will be described.

FIG. 1 is a cross-sectional view of the recording device, FIG. 2 is a perspective view showing its external configuration, FIGS. 3 to 6 are perspective views showing its main parts, and FIG. 7 is a configuration explanatory view of the recording head. , Figure 8 (
a) to (g) are explanatory diagrams of the recording principle of Hubble Jets I; Figures 9 to 12 are explanatory diagrams of parts of the second feeding means;
17 are explanatory diagrams of the feeding operation of the second feeding means, FIG. 18 is a block diagram showing the control means, and FIG. 19(a)
(b) is a flowchart 1 showing the control operation.

〔overall structure〕

First, in FIG. 2, A is a recording section, and therein is a recording head 1. It has a built-in platen 7, driving means, etc.

On the exterior of the recording section, LEDs 41a and 41b, which serve as selection display sections for the feeding means, are provided. Further, 44 is a knob connected to the rotating shaft of the platen 7, and 45 is a switch for power supply.

B is a sheet material feeding section for feeding sheet materials to the distribution recording section A, which includes a first feeding means 8, a second feeding means 9, an ejection stun force 13, and a manual feeding guide. It has a magnitude of 14.

Next, referring to FIG. 1, a schematic configuration of the recording apparatus will be described.

In FIG. 1, ``■'' is a recording head which is a recording means, and in this embodiment, an ink cartridge 1f which employs an inkjet recording method is used.

Reference numeral 2 denotes a carriage on which the recording head 1 is mounted and is movable back and forth in the width direction of the sheet material 3. The carriage 2 is provided with a protruding cart holder 3a for easily wrapping the sheet material 3 around a platen 7 (described later), and a rear shaft 3b supported by a side frame (not shown).
It is configured to be movable along the front rail 3C. Further, as shown in FIGS. 3 to 6, a part of a belt 5, which is passed around pulleys 4a and 4b, is connected to the carriage 2, and the pulley 4a is driven by a carriage drive motor 6. By driving in reverse rotation, the carriage 2 can be moved back and forth.

7 is a first feeding means 8, which will be described later. This is a platen for conveying the sheet material 3 fed by the second feeding means 9. 10
is the first feeding means 8. This is a paper pan for guiding the sheet material 3 fed by the second feeding means 9. Further, a plurality of feed rollers 11 are in contact with the distribution platen 7, and the sheet A3 is conveyed to the recording head 1 by the cooperative action of both of them.

12a and 12b discharge the sheet 3 after recording with a stunning force of 1
3, and is driven by the platen 7 or another drive source via a gear train (not shown).

Reference numeral 14 denotes a manual feeding guide that serves as a guide when manually feeding the sheet material 3.

A first drive motor 15 is a first drive means for driving the platen 7. This first drive motor 1
By rotationally driving the sheet material 5, the sheet material 3 fed by the first feeding means 8 or the second feeding means 9 is conveyed to the recording head 1 along the paper pan IO. When recording is started, the reciprocating movement of the carriage 2 causes the sheet material to be
is transported intermittently.

16 is the first feeding means 8. A second drive motor is a second drive means for selectively driving the second feeding means 9.

Hereinafter, the configuration of the main parts of the recording apparatus will be explained in detail with reference to the drawings.

[Recording means]

As the recording head 1, an ink jet recording method is suitably used.

The inkjet recording method includes a liquid ejection port for ejecting recording ink liquid as flying droplets, a liquid flow path communicating with the ejection port, and a part of this liquid flow path. and ejection energy generating means for applying ejection energy to the ink liquid to form flying droplets. The ejection energy generating means is then driven in accordance with the image signal to eject ink droplets to create an image.

Examples of the ejection energy generating means include a method using an electric meter such as a Viez element, a pressure energy generating means such as a transducer, and an electromagnetic method that generates flying droplets by irradiating and absorbing electromagnetic waves such as a laser onto the ink liquid. There are a method using an energy generating means, a method using a thermal energy generating means such as an electrothermal converter, and the like. Among these methods, a method using a thermal energy generating means such as an electrothermal converter is preferable because it allows the ejection ports to be arranged in high density and also allows the recording nozzle to be made compact.

In this embodiment, a Bubble Geno 1 recording method, which is one of the inkjet recording methods, is used as the recording means.

FIG. 7 is an explanatory diagram of the configuration of the recording head 1, and FIG.
) ~ (The odor is an explanatory diagram of the bubble jet recording principle.

In FIG. 7, 1a is a heater hoard, and an electrothermal converter (discharge heater) 1b and an electrode IC such as an aluminum UNO for supplying power to this are formed and arranged on a silicon substrate. . A top plate 1e having a partition wall for partitioning a liquid path (nozzle) 1d for recording liquid is adhered to the heater board 1a. Further, an ink car I/ridge 1r is built into the recording head 1 for supplying ink to the nozzle Id.

That is, the recording head l is the ink cartridge lr.
A disposable type is used in which the recording head 1 can be replaced when the ink in it runs out.

The ink supplied from the above ink cartridge 1 is
Each nozzle 1 (I) is guided into each nozzle 1 (I). These nozzles 1d are formed with an ink ejection port 1d+, and the ejection port 1d1 faces the sheet material 3 of the recording head 1 in the sheet conveyance direction (seventh direction). (Y direction in the figure) with a predetermined pinch.

Here, the principle of ink flying in the bubble jet recording method will be explained with reference to FIGS. 8(a) and 8(b).

In a steady state, as shown in FIG. 8(a), the surface tension and external pressure of the ink 17 filled in the nozzle ld fluctuate at a constant level at the ejection port. To make the ink 17 fly in this state, the electrothermal converter 1b in the nozzle ld is energized,
The temperature of the ink 17 in the nozzle 1d exceeds nucleate boiling and is caused to rise rapidly. Then, as shown in FIG. 8(b), the ink 17 adjacent to the electrothermal converter 1b is heated to generate microbubbles, and the ink in the heated portion is vaporized to cause film boiling. As shown in FIG. 8(C), the bubbles 18 grow rapidly.

When the bubbles 18 grow to the maximum as shown in FIG. 8 (cl), ink droplets are pushed out from the ejection opening in the nozzle ld, and the ink droplets fly to the sheet material 3 at that speed to record an ink image. It is something to do.

When the energization to the electrothermal converter 1b is finished, the state shown in FIG. 8(e)
As shown in FIG. 8, the grown bubbles 18 are cooled and contracted by the ink 17 in the nozzle ld, and further, as shown in FIG.
Upon intense cooling, the bubbles 18 either disappear or shrink to an almost negligible volume. When the bubble 18 contracts, ink is supplied from the ink cartridge 1f into the nozzle 1d by capillary action, as shown in FIG. 8(g), in preparation for the next energization.

Therefore, by synchronizing with the movement of the carriage 2 and energizing the electrothermal converter 1b according to the image information,
An ink image is recorded on the sheet 3.

[First feeding means]

As shown in 11m, the first feeding means 8 is attached to the main body of the apparatus so as to overlap with the lower side of the second feeding means 9.

Reference numeral 8a denotes a housing-like frame constituting the first feeding means 8, and within this frame 8a, a feeding stun force 8b for loading sheets +a3 is rotatably mounted around a pin 8c ( -1 is lost.

8d is -1- loading star, force 8bJ:
- A feeding roller which is a feeding rotating body for feeding the shrine 3. The feeding stacker 8b has an elastic portion tt from the back side.
8e forces the uppermost sheet material 3 into contact with the feeding roller 8d.

Further, at the end of the frame 8a in the feeding direction, a sorting material 3 is provided.
Separation claws 8f are provided for separating the sheets one by one.

As shown in FIG. 3, a feed roller guide 8g is attached to the rotating shaft 8d of the feed roller 8d so as to be movable in the thrust direction. Further, the feeding roller guide 8g is held by a sheet guide 8h that is movable in the width direction of the sheet material 3 on the feeding stacker 8b.

Therefore, when the sheet guide 8h is moved in the width direction, the separating claw 8f and the feeding roller guide 8g are also moved at the same time.

Further, the rotation shaft 8d+ of the feed roller 8d is rotatably supported at both ends by the frame 8a, and the fourth
As shown in the figure, a gear 81 is attached to one end of the
The drive force from the second drive motor 16 is transmitted to the drive motor 16 for rotational driving.

The installation of the first feeding means 8 will be explained with reference to FIG. 4.

4-noid frame 19 provided on the left and right sides of the device body.
A main body side guy F21, 22 and a lever 24, 25 rotatable about the bin 23 are provided on opposing surfaces of the body 20, respectively.

Stacker guides 8b are provided on both sides of the feeding stun force 8b.
1. 8b2), and the above-mentioned Sukunoka guide 8b1. When 8b2 is inserted along the main body side guides 21.22, its tips 8b+' and 8bz' are aligned with surface 2.
1a22a, the claw portion 24a25a of the lever 24.25 engages the groove 8 of the stacker guides 8b+, 8b2.
b and "8bz", respectively, so that the first feeding means 8 can be attached to the main body of the apparatus. Also, at this time, the gear 81 meshes with the planetary gear 34 and becomes capable of transmitting driving force.

When removing the first feeding means 8 from the main body of the apparatus,
Push down the tips 24b and 25b of the levers 24 and 25 to connect the claws 24a and 25a to '(R8bl'', 8
This can be done by pulling out the feeding stacker 8b by disengaging it from the feed stacker 8b.

Therefore, by removing the first feeding means 8 from the apparatus main body, the sheet material 3 can be easily replenished.

[Second feeding means]

In FIG. 1, reference numeral 9a denotes a plate-shaped frame constituting the second feeding means 9, and ribs 9b and 9c are provided at predetermined positions on this frame 9a. Further, the distribution ribs 9b, 9c rotatably support the guide shaft 9d. This guide shaft 9d has a frame 9aJ
A slider 9e for positioning the sheet materials 3 loaded on the second side in the width direction is movably attached. The locking member 9e+, which is a part of the distribution slider 9e, frictionally slides on the frame 9a, thereby preventing the distribution slider 9e from inadvertently moving.

Further, as shown in FIG. 5, the guide shirt 1-9d has a plate 9f located outside the ribs 9b and 9c for pressing the sheet 3 stacked on the frame 8a against a feeding roller, which will be described later. , is cut out so that it can be rotated.
An elastic portion 119f+ that connects the feed roller 119a to the feed roller 119f+, which will be described later, biases the feed roller in the axial direction. Further, a slip member 9fz is attached to the portion of the plate 9f that presses the sheet material 3 in order to bring the coefficient of friction closer to the sheet material 3. Furthermore, a G handle 9f3 is provided protruding near the guide shaft 9d of the distribution plate 9f to rotate it against the elastic force of the elastic member 9r.

9g is a feeding roller which is a feeding rotating body for feeding the sheet material 3 loaded on the distribution brake).9aj2. The feeding roller 9g is a half-moon-shaped roller with a part of its circumferential surface cut out.

Between the feeding roller 86.9g and the platen 7,
A first detector 26, which is a first detection means for detecting the sheet material 3, is provided. This first detector 26 detects the presence or absence of sheets)+, ]'3 being conveyed by a support plate 28''2 forming a sheet conveyance path by a lever 27b rotating around a pin 27a. .

At one end of the rotation shaft 9g+ of the feeding roller 9g, a sixth
As shown in the figure, a bully 9h for transmitting driving force,
One-way crudge 9 that transmits driving force only in one rotational direction
1. A phase cam 9k that transmits the phase of the rotating shaft 9g+ to a second detector 9j, which is a second detection means, rotates together with the rotating shaft 9g+, and is placed between the feeding roller 9g and the play I/9a. A gap cam 9I is provided for forming a gap between the two.

Further, below the rotating shaft 9g+ of the feeding roller 9g,
As shown in FIG. 6, a claw portion U' 9m is provided, rotates around the bottle 9m, and is biased toward the axis of rotation 9g+ by an elastic member 9n. In addition, the rotating shaft 9
gl has an operating cam 9p for operating the claw member 9m;
The rotating shaft 9g+ is rotatably held, and a connecting portion U9q is provided for fixing the rotating shaft 9g+ to the frame 9a'2. Moreover, 9r is the above-mentioned joint +
This is a rib for supporting J9q on frame 9a.

FIG. 9 shows the relationship between the manual feeding guide 14 and the second feeding means 9 when viewed from the direction of arrow C in FIG.

\As shown in FIG. 1, a rib 14a is provided on the back side of the manual feed guide 14, and this rib I
A gap l is formed between la and frame 9a. The size of this gap is such that the second feeding means 9 has the maximum thickness that can be fed.

The claw portion 9m+ of the claw member 9m protrudes from the loading surface P1 of the partial frame 9a by a height of 1.3 cm from the loading surface P1. A notch 14a1 is formed in the rib 14a provided facing the claw 9m, and the claw 9ml is allowed to escape through the cutout 111+1.

A thin plate-like elastic part +J'14b which is smooth and has a small coefficient of friction is connected to the surface of the rib 14a, and its tip 14b1 protrudes downward from the notch 14a1,
There is a gap with respect to the sheet loading surface P1. They are facing each other across the street. The tip portion 14b1 is a thin plate-like elastic member! Although it is formed integrally with 4b, it is also possible to configure it as a separate member.

Next, a sectional view of the feeding roller 9g is shown in FIG. 10.

The rotation shaft 9g1 of the feed roller 9g is disposed parallel or almost parallel to the sheet loading surface P with a distance from the sheet loading surface P, and is integrated with the rotation shaft 9g in the wooden embodiment. A circular shaft with a portion cut out is used to attach a rotating cam, etc.

Note that the shape of the rotating shaft 9g+ may be any shape as long as the cam etc. can rotate together.

In addition, the above-mentioned feeding I cola-9g has a notch 9g on a part of the circumference.
A half-moon shaped roller with z is used. When the notch 9g2 faces the sheet stacking surface P, the feeding roller 9g is below the stacking surface P1, and in other states it protrudes from the stacking surface P1 to a height Ll. Therefore, the sheet material 3 is fed by the arc surface 9gi,
Its outer circumference! is configured to be shorter than the distance from the rotating shaft 9gl to the platen 7.

Above L1. L2+ L3. The relationship between the size of Ll is
Ll>L3>L,>1.2, and the sheet material 3 to be used
The minimum thickness of the sheet material 3>L2, and the maximum thickness of the sheet material 3 used is 1.1.

The connecting member 9q that connects the rotating shaft 9g1 and the frame 9a will be explained with reference to FIG. 11.

The coupling member 99 has protrusions 9qI and 9Q2 protruding from both sides in the axial direction through which the rotating shaft 9g+ is rotatably inserted. Four portions 9r are formed in the portion of the rib 9r into which the rotating shaft 9g+ is fitted, and a portion thereof has a convex portion 9r.
z is provided protrudingly.

With the coupling member 9q attached to the rotating shaft 9g+,
By moving the coupling member 9q in the direction of the arrow in FIG. 11, the projection 9Q1. The feeding roller 9g is attached to the frame 9a by fitting the parts 9Q2 into the recesses 9r of the rib 9r, respectively, and then rotating the coupling member 99 in the direction of the arrow E to fit the four parts 9qs into the convex parts 9rz. I can do it.

[Second driving means]

Next, the second driving means of the sorting material feeding device will be explained with reference to FIG. 12.

In FIG. 12, a pulley 29 is attached to the rotation shaft of the second drive motor 16, and a bell (30) engaged with the pulley 29 is attached to a side frame 19.20 on the side of the main body of the apparatus with a pin 31a. A pulley 31 is rotatably attached to the feed roller 9g, and a pulley 9h is attached to the rotation shaft 9g1 of the feed roller 9g. A gear (not shown) fixed to the distribution pulley 31 meshes with a gear 32 rotatably attached to the side frame 1920 about a pin 32a. This four-wheel gear 32 is connected to the rotating shaft 8c1 of the third feeding means 8 via a planetary gear 34 supported by a rotary lever 33 centered on a pin 32a, as shown in FIG. The gear 81 is meshed with the gear 81, which has been removed.

1. When the second drive motor 16 rotates in the direction of arrow a, the gear 32 rotates counterclockwise via the belt 30, the planetary gear 34 moves in the direction of arrow F in the figure, and the gear 81 rotates in the direction of arrow F.
They do not mesh with each other, and no driving force is transmitted to the rotating shaft 8a+ of the first feeding means 8.

On the other hand, the pulley 9h driven by the belt 30 is transmitted to the rotating shaft 9g+ by the engagement of a one-way clutch 91 mounted on the same axis, and the feeding roller 9g is rotationally driven to feed the sheet material 3.

Further, when the second drive motor 16 rotates in the direction indicated by the arrow, the gear 32 rotates clockwise via the belt 30, and the planetary gear 34 moves in the direction indicated by the arrow G in the figure and meshes with the gear 81. Therefore, the rotation shaft 8d of the first feeding means 8,
A driving force is transmitted to the sheet feeder 3, and the sheet feeder 3 is fed.

On the other hand, the drive force of the pulley 9h driven by the belt 30 is not transmitted to the rotating shaft 9g1 due to the disengagement of the one-way clutch 9I attached to the same shaft.

Therefore, by using the planetary gear 34, a low-cost and highly reliable power transmission system can be constructed.

The selection of the first feeding means 8 or the second feeding means 9 is performed by the CPU 35a according to a selection command inputted to the input means of the recording apparatus or a control command stored in the ROM 35b, which will be described later.

[Control means]

Next, the control system of the sheet material feeding device will be explained with reference to the block diagram shown in FIG. 18.

The control means includes a CPU 35a that controls the control operation of the entire device;
A ROM 35b for storing control programs, a RAM 35c used for work or data storage, a recording head 1, a driver 35d for driving various motors, etc., 1 for transmitting signals from various detectors, input means, etc. to the CPU 35a. , 10 baud 1□35e, etc. "Distribution 110 boat 35e has a keyboard 36, R32, 32G
(Serial board 1-)37. A buzzer 40 generates a warning sound when a signal is input from the Centronics (parallel bow 1-) 3B, the third detector 39 for detecting the reference position of the carriage 2, etc. This does not indicate that the first and second feeding means 8.9 have been selected, and the LED41 afllb etc. are connected.

Next, the control operation by the above control system is shown in Fig. 19 (a) (b
) and FIGS. 13 to 17.

First, in the initial state, the feed roller 9 is driven by the cam 9.
p (and claw member 9m), gap cam 91 (and play 1-
9f), the positional relationship of the phase cam 9k (and second detector 9j) with respect to the sheet loading surface P of the frame 9a is the first
It is as shown in Figure 3.

At this time, the size of the gap is L, <1. <1.4.

The second detector 9 interlocks the above-mentioned initial state with the phase cam 9k.
Detected by J. Further, the third detector 39 detects whether or not the Carnon 2 is waiting at the home position.

The detection operation at this time will be explained with reference to the flowchart shown in FIG. 19(a).

First, in step S1, the carriage 2 is moved to the reference position (
The third detector 39 detects whether the robot is waiting at the home position.

When the third detector 39 is in the OFF state, the carriage drive motor 6 is driven to move the carriage 2 to the Baum position.

Next, if the third detector 39 is in the ON state and the carriage 2 is waiting at the home position, the process moves to step S2 and it is determined whether or not the second detector 9J is in the ON state. . The second detector 9j is configured to be turned on when the feed roller 9g is in the initial state, and turned off when it is in any other state.

When the second detector 9J is in the OFF state, the process moves to step S3, and the second drive motor 16 is rotated in the direction of the arrow a in FIG. 9k is rotated until the second detector 9J is in the ○N state.

If the second detector 9J is in the ON state, it is confirmed that it is in the initial state and the detection operation ends.

Further, the first feeding means 8 is not set in any particular initial state and remains in a standby state.

When the sheet material feeding device is in the initial state, the second feeding means 9 can be replenished with the sheet material 3. That is, the handle 9ri provided on the plate 9r is
When the sheet material 3 is rotated in the direction of the arrow P in FIG. The frame 9a
Stack it on top, insert it until its tip touches the rib 14a, and then return the handle 9r3 to its original position. Further, positioning in the width direction is performed by moving the slider 9e in accordance with the width size of sea 1-+J3. At this time sheet + J
' 3 is pressed against the sheet stacking surface P1 by the plate 9f, so it will not move inadvertently.

Furthermore, since the first feeding means 8 can be removed from the main body of the apparatus, replenishing the C I/G3 3 can be done more easily than before.

Next, the sheet material feeding operation will be explained with reference to the flowchart shown in FIG. 19(b).

First, when a feeding command for the sheet material 3 is input in step 311, the process moves to step 312 and the first feeding means 8 or
Alternatively, it is determined whether the feeding is from the second feeding means 9.

The selection of the feeding means is displayed on the LEDs 41a and 41b. If the feeding is from the first feeding means 8, the process moves to step 313, where the second drive motor 16 is driven to rotate in the direction of the arrow in FIG. Feed roller 8 via planetary gear 34 gear 81
d to feed the sheet material 3.

Next, the process moves to step 314, and it is determined whether the leading end of the sheet material 3 has been detected by the first detection fi26. If the leading edge of the sheet material 3 is detected, step S15
The second drive motor 16 is driven until the sheet material 3 reaches the platen 7. Then step 316
Then, the first drive motor 15 is driven to rotate the platen 7 and convey the sheet material 3 to the recording head 1.

In addition, in step S14, the first detector 26 detects C)t,! If the leading edge of '3 is not detected, the process moves to step 317, where a counter (not shown) starts counting. Then, the process moves to step 318, and it is determined whether the allocated count exceeds the ilJ count corresponding to the distance from the first feeding means 8 to the platen 7.

If the count number does not exceed the reference count number, the process returns to step S13 and the second drive motor 16
is driven to feed the sheet material 3 by the feeding roller 8d.

If the count exceeds the reference count, the process proceeds to step S19, where it is determined that there is no sheet material 3, and the buzzer 40 sounds 2 to issue a warning.

Next, when the sheet material 3 is fed from the second feeding means 9 in step 312, the process moves to step 5204, and the second drive motor 16 is rotated in the direction of arrow a in FIG. is driven to feed the sheet material 3.

Hereinafter, the feeding operation by the second feeding means 9 will be described with reference to FIGS. 15 to 17 for the case of continuous feeding and the case of feeding only - sheets.

First, the case where the sorted materials 3 are continuously fed will be explained with reference to FIGS. 15 and 16.

FIG. 15(a) shows the case where the second feeding means 9 is in an initial state.

Next, when the second drive motor 16 is driven 7 to rotate the rotating shaft 9g1 in the direction of the arrow a as shown in FIG. The material 3 is lifted, and at the same time, the lowest sheet material 3 is sent downstream, and its tip is attached to the thin elastic member +4b.
hit it against. However, since the claw portion 9m of the claw member 9m protrudes from the loading surface PI, the thin elastic member 14
b cannot be bent, and the tips of the sheet materials 3 can be aligned to prevent skewing.

-1- When the feeding CI roller 9g further rotates, the same figure (
As shown in 4-O, the operating cam 9p pushes down the claw member 9m against the elastic force of the elastic member (1n), so that the claw portion 9m+
is retracted further downward from the loading surface P. At this time, the thin elastic member 14b begins to bend more at the notch 14a of the rib 14a, and the sheet material 3 urged downstream by the feeding roller 9g slides on the elastic plate 14b. While pushing the tip toward the downstream side, the same figure (C) -1
As shown in the figure, gaps 1 and 6 are formed between the stacking surface P1 and the stacking surface P1. Then, as shown in FIG. 2(C)-2, the lowermost sea day A3 is fed to the downstream side through the above-mentioned gap as the feeding roller 9g rotates.

”The sheet material 3 above the lowest sheet material 3 in the distribution is -I
The elastic force of the thin plate-like elastic member +4b prevents the paper from being fed. The force relationship at this time is Fl>F2, where the frictional force between the feeding roller 9g and the sheet material 3 is 11, the frictional force between the sheet materials 3 is F2, and the elastic force of the thin elastic member 14b is F3. The relationship is F3>FZ.

In this way, the sheet materials 3 are sequentially fed one by one by 11 minutes.

Therefore, the thin plate-like elastic portion 4, 114b is
The gap [, 6] is automatically adjusted according to the type of sheet material 3, and sheet materials 3 having various characteristics can be automatically fed.

When the feeding roller 9g further rotates, the second detector 9j detects the phase cam 9k, as shown in FIG.
Return to initial state. The separated sheet material 3 is fed toward the platen 7 by multiple rotations of the feeding roller 9g, and when the leading end is detected by the first detector 26,
The feeding roller 9g is rotated a plurality of times by an amount corresponding to a distance longer than the distance between the first detector 26 and the platen 7.

This is to ensure that the leading end of the sheet material 3 is pushed into the nip between the platen 7 and the feed roller 11 to prevent skewing.

With the sheet material 3 in contact with the platen 7, the feeding roller 9g is returned to its initial state as shown in FIG.

Further, when the sheet material 3 is fed from the second feeding means 9 by the rotation of the platen 7, the sheet material 3 is not in contact with the feeding roller 9g, so that it can be transported with a light force. In this case, in order to assist the conveyance of the sheet material 3 on the platen 7, the feed roller 9g may be rotated.

On the other hand, the first feeding means 8 uses a known claw separation method. Further, after the sheet material 3 reaches the platen 7, the platen 7 is driven by the first drive motor 15 to convey the sheet material 3, but the feeding roller 8d is
Conventionally, parts such as a one-way flanch have been required to avoid pulling the load on the drive system since it rotates while being dragged by the sheet material 3. On the other hand, in this embodiment, the rotating shaft 8d rotates in the direction of the arrow F in FIG. Push lever 33 into pin 3
．． 2a as the center in the direction of the arrow, and the planetary gear 3
4 and the gear 81 are disengaged. As a result, the feeding roller 8d is in a state where no load from the drive system is applied, and the sheet material 3 can be pulled out with a light force.

Next, the feeding operation when the second feeding means 9 feeds sheet materials 3 such as cut sheets one by one will be explained with reference to FIGS. 15 and 17.

FIG. 17 shows a case where the second feeding means 9 is in an initial state. Since a gap is formed between the plate 9f and the loading surface P1 by the gap cam 9°C, the sheet material 3 that is thinner than this can be used without folding the end portion by folding the tip into a thin plate-like elastic member +
It can be inserted up to 4b with light force.

Also, when feeding a sheet material 3 that is thicker than the gap L7,
It can be inserted with less force than when there is no gap.

Therefore, even when a weak sheet material 3 is loaded, the gap I, 6 or 1.7 can be automatically adjusted according to the thickness of the sheet material 3 and fed.

Hereinafter, the feeding operation when the second drive motor 16 is driven is the same as the continuous feeding shown in FIGS. 15(b) to 15(d), and will therefore be omitted.

Next, returning to the flowchart of FIG. 19(b) again, when the sheet material 3 is fed by the second feeding means 9, the process moves to step 321, where the first detector 26 detects the tip of the sheet material 3. is detected.

If the leading edge of the sheet material 3 is detected, step S2
2 until the sheet turret 3 reaches the platen 7.
The second drive motor 16 is driven. This second drive motor 16 is stopped when the second detector 9j is in the ON state shown in FIG.

Next, proceeding to step S16, the first drive motor 15
is driven to rotate the platen 7 and convey the sheet material 3 to the recording head l.

Further, in step 321, if the leading edge of the sheet material 3 is not detected by the first detector 26, step 32
3, a counter (not shown) starts counting. Then, the process moves to step s24, and it is determined whether the count number exceeds a reference count number corresponding to the distance from the second feeding means 9 to the platen 7.

If the counted number does not exceed the reference number l-, the process returns to step S20, the second drive motor 16 is driven, and the sheet material 3 is fed by the feeding roller 9g.

If the count exceeds the reference count, the process proceeds to step S25, where it is determined that there is no +, 13, and the buzzer 40 is sounded to issue a warning. Also, the warning displays the selection of feeding means l7ED41a, 41
b may be blinking.

Other Embodiments Next, other embodiments of the sheet material feeding device shown in the above embodiments will be described with reference to FIGS. 20 to 23.

Each feeding means in the above embodiment includes a platen 7° frame 8a, 9a, a recording bend 1. It can be configured even if it is separated from the main body of the recording device including the carriage 2, etc., and the second
As shown in FIG. 0, it may be configured to be detachably attached to an existing recording device.

Further, as a gap forming member that forms a gap between the plate 9r of the second feeding means 9 and the loading surface P, a second detector 9j detects the phase of the feeding roller 9g, as shown in FIG. Then, the solenoid 42 is turned ON and OFF by the signal.
It is also possible to form a gap by F.

In addition, the mechanism for switching the transmission of the driving force to the first feeding means 8 or the second feeding means 9 includes a driving force from the M star gear 34 to the first feeding means 8 when the second feeding means 9 is driven. In order to ensure the interruption of the transmission, it is also possible to connect a weak spring member 43 to the rotating lever 33 as shown in FIG. As this spring member 43, the intermediate gear 32
Due to the rotation of the planetary gear 34, the upper gear 8
A material having elasticity that does not impede the action of being pressed against 1 is used.

Also, a thin plate-like elastic member 1 used to separate the sheet material 3
4b may have a tapered tip as shown in FIG. 23. In this case, the elastic member 1
4b is flexible at the tip and strong at the base, so it can be used with more sheet materials.

Furthermore, the configuration of the recording means applied to the above embodiments is as follows:
In addition to the combination of the discharge port, liquid path, and electrothermal converter described above, US Pat.
It is also possible to adopt the methods disclosed in JP-A No. 58333, Japanese Unexamined Patent Publication Nos. 59-123670, etc.

Further, the above-mentioned recording means is a disposable type recording head in which an ink cartridge 1f is provided in the recording head 1, and the recording head 1 is replaced when the ink in the ink storage chamber 1r runs out. However, ink may be supplied to the recording head from an ink cartridge separately installed in the recording apparatus.

Furthermore, the recording means of the present invention need not be limited to the above-mentioned hub geso recording method. For example, a so-called thermal transfer recording method in which an ink notebook coated with heat-melting ink is heated in accordance with an image signal and the melted ink is transferred to the sheet material 3;
Various recording methods can be employed, such as a so-called thermal recording method in which a sheet t13 that develops color by heat is heated in accordance with an image signal, and a so-called wired gutter recording method in which recording is performed by striking an ink ribbon with a wire in accordance with an image signal. .

Therefore, the recording head is not limited to the above-mentioned hub head; for example, a thermal head, a wire head, a dein-wheel head, etc. can be used.

The recording device may be used as an image output terminal for information processing equipment such as a computer, and may also be applied to a copying device combined with a reader or the like, or even a facsimile device having a sending/receiving function. It is possible.

<Effects of the Invention> As described above, the present invention has various characteristics in which the gap formed between the thin plate-like elastic member and the sheet stacking surface is automatically adjusted depending on the type of sheet material. Sheet materials can be fed automatically.

[Brief explanation of drawings]

Figure 1 is a cross-sectional view of the recording device, Figure 2 is a perspective view showing its external configuration, Figures 3 to 6 are perspective views showing its main parts, and Figure 7 is an explanation of the configuration of the recording throat. Figure, Figure 8 (
a) to (g) are explanatory diagrams of the bubble jet recording principle, No. 9
12 are explanatory diagrams of parts of the second feeding means, FIGS. 13 to 17 are explanatory diagrams of the feeding operation of the second feeding means, and FIGS.
Figure 8 is a bronc diagram showing the control means, Figure 19 (a) (
b) is a flowchart showing the control operation, and FIGS. 20 to 23 are explanatory diagrams of the other side. l is the recording head, 1a is the heater board, lb is the electrothermal converter, IC is the electrode, 1d is the nozzle, ld is the discharge port,
1e is the top plate, 1f is the ink cartridge, 2 is the carriage, 31 is the sheet material, ・aalma is the card holder, 3b
Beam shaft, 3c is front rail, 4a 4b
is a pulley, 530 is a heald, 6 is a carriage motion motor, 7 is a platen, 8 is a first feeding means, 8a, 9a
Fray 11.8b is feeding stacker, 8 b+, 8 b
z is stasokagite, 8b, #, 8b, ” is groove, 8
c, 9m, 27a are pins, 8d, 9g are feeding rollers, 8 d+, 9 g+ are rotating shafts, 8e, 9f
,, 9n is an elastic member, 8f is a separation claw, 8g is a feeding roller guide, 8h is a sheet guide, 8i, 32 is a gear, 9
9b, 9c9r, 14a are ribs, 9d is the second feeding means.
is a guide shaft, 9e is a slider, 9f is a plate, 9r2 is a slip member, 9r3 is a handle, 9h is a pulley, 91 is a one-way flanch, 9J is a second detector, 9
There is a phase cam, 9! is the gap cam, 9m is the claw member, 9m,
is the claw part, 9p is the operating cam, 9q is the connecting member, 9q++
9q2 is a protrusion, 9Q3+ 9r is a recess, 9r,!
10 is a paper pan, 11 is a feed roller, 12a and +2b are discharge rollers, 13 is a discharge stacker, 14 is a manual feed guide, 14a1 is a notch, 14b
15 is a first drive motor, 16 is a second drive motor, 17 is ink, 18 is a bubble, 19.
20 is the side frame, 21.22 is the main body side guide, 2
4.25 is the lever 24a, 25a is the claw part, 26 is the first detector, 27b is the lever, 28 is the support plate, 29.31
is a pulley, 33 is a rotating lever, 34 is a planetary gear, 35
a is CPU, 35b is ROM, 35c is RAM, 35d
is the driver, 35e l! I/O port, 36
is the keyboard, 37 is R3232C, 38 is Centronics, 39 is the third detector, 40 is the buzzer, 41a 4
1b is an LED, 42 is a solenoid, 43 is a spring member, 4
4 is a knob, and 45 is a switch. Figure 21 Figure 23

Claims (4)

[Claims] (1) A first and second feeding means for stacking sheet materials so that they can be fed, and a platen for conveying the sheet materials fed from the first feeding means or the second feeding means. , a recording means for forming an image on the sheet material according to image information; a first driving means for driving the platen; and a recording means for selectively driving the first and second feeding means. a second drive means; a first detection means for detecting a sheet material provided between the first and second feeding means and the platen; and a detection signal of the first detection means to drive the first drive means. and a control means for controlling the drive of the means, the second feeding means having a feeding rotary body for feeding the sheet material, and a feeding rotary body near the feeding rotary body with respect to the sheet feeding direction. A recording device comprising: a claw member that operates in a vertical direction; and a thin plate-like elastic member disposed opposite to the claw member. (2) The recording device according to claim 1, wherein the recording means of the recording device is an inkjet recording method that creates an image by ejecting ink according to a signal. (3) The recording means discharges ink using thermal energy, and includes an electrothermal converter for generating the thermal energy. recording device. (4) The recording means of the recording device energizes the electrothermal transducer in accordance with the signal, and the ink is ejected from the ejection port to form an image due to the growth of bubbles generated by heating exceeding film boiling by the electrothermal transducer. 4. The recording apparatus according to claim 3, which uses a bubble jet recording method for creating.