JPH03166150A - Image forming device - Google Patents

Abstract

PURPOSE:To easily employ even a paper roll as a transcription sheet utilizing an existing facility without impairing the working effectiveness of hand feeding, by furnishing a control means to move a roll paper cutting device from a sheet feed position to standby position when the hand feed mode is selected. CONSTITUTION:When the roll paper feeding mode is selected by a mode entry means, the transcription sheet cut in a roll paper cutting device 12 and exhausted out of a supply hole is, as it is, fed into an image forming device from a transcription sheet insert hole 28 while the condition is held so that the roll paper cutting device 12 lies in the sheet feed position. When on the other hand the hand feeding mode is entered from the mode entry means, the roll paper cutting device 12 moves to the standby position automatically through the action of a control means, which permits hand feeding from the abovementioned transcription sheet insert hole 28 with the condition held as it is, wherein no other operations are required.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image forming apparatus, such as a copying machine, for forming an image on cut paper or the like cut into a standard size in advance.

[Conventional technology]

Generally, in an image forming device such as a copying machine, as a means of feeding transfer paper to the image forming position, cut paper cut into a standard size is stored in a cassette built into the device, and the transfer paper is loaded one by one from this cassette. You can manually feed the transfer paper from the transfer paper insertion slot provided on the main body of the device.
A structure is used in which the cut sheets are inserted one by one.

However, in an apparatus that uses such cut paper, if the size of the transfer paper used becomes large, there is an inconvenience that an enormous amount of space is required to store the transfer paper. Conventionally, a roll of O-roll paper is set in a special roll paper cutting device, the device cuts the paper to the desired size, and then the cut transfer paper is inserted into the transfer paper insertion slot to form an image. Measures such as supplying it into the device have been taken.

[Problem that the invention attempts to solve]

In the above means, it is necessary to first cut the roll paper with an O-roll paper cutting device and then perform the image forming operation.
Work is tedious and inefficient. In addition, as a means to eliminate such inconveniences, a roll paper cutting mechanism is incorporated into the main body of the image forming apparatus, and when the roll paper mode is selected as the paper feeding mode of the image forming apparatus, the roll paper cutting mechanism is Although it is possible to use a structure in which transfer paper is supplied, in this case, a new image forming apparatus with a special and complicated structure must be manufactured, resulting in high costs. Furthermore, users who own devices that do not have a built-in roll paper cutting VR device have the inconvenience of having to purchase a new device.

Further, even if the image forming apparatus can be provided with a roll paper feeding function, it is preferable to avoid inconveniences such as inconvenience in paper feeding operations as much as possible.

In view of these circumstances, the present invention provides an image forming method that uses a conventionally used device, has an inexpensive structure, and also allows roll paper to be easily used as transfer paper without impairing its usability. The purpose is to provide equipment.

[Means to solve the problem]

The present invention provides an image forming apparatus having a transfer paper insertion port and configured to form an image on the transfer paper inserted from the transfer paper insertion port, which includes a built-in roll paper and the zero-roll paper. The roll paper cutting device that cuts the paper and discharges it outside from the discharge port is placed at a paper feeding position where the supply port of the roll paper cutting device matches the transfer paper insertion port of the image forming device and on standby away from the transfer paper insertion port. a drive means that is movably attached to the main body of the image forming apparatus and moves the roll paper cutting device; and a roll paper feeder that feeds paper from the roll paper cutting device as a paper feeding mode. a mode input means for selecting a mode or a manual feed mode in which paper is manually fed from the transfer paper insertion slot; and control means for moving it.

(Function) According to the above structure, when the roll paper feeding mode is selected by the mode input means, the roll paper cutting IFi device is in the paper feeding position, and the roll paper cutting device is in the roll paper cutting device. The transfer paper cut into pieces and discharged from the supply port is directly fed into the image forming apparatus from the transfer paper insertion port. On the other hand, when the manual feed mode is input using the mode input means, the control means automatically moves the paper cutting device to the standby position, leaving it in the same position without performing any other operations. You can manually feed paper from the transfer paper insertion slot.

〔Example〕

FIG. 1 shows the overall structure of a copying machine (image forming apparatus) in one embodiment of the present invention.

This copying machine consists of a main body 10 and a roll paper Q-cutting device 12, and the main body 10 includes a copying section 14 and a
4 and a transfer paper stock stand 16 that supports the paper.

FIG. 2 shows the internal structure of the copying section 14. A large paper feed cassette 1 is provided at the bottom of the copying section 14.
8 is removably mounted, and the transfer paper in this paper feed cassette 18 is conveyed to the photosensitive drum 26 above through a pair of paper feed rollers 20, 22 and a pair of registration rollers 24.

Further, a transfer paper insertion slot 28 is provided above the paper feed cassette 18 on the front side of the copying section 14 (on the right side in FIG. 2), and the transfer paper inserted through this transfer paper insertion slot 28 is also The paper is supplied into the copying section 14 through a pair of paper rollers 22.

Around the photosensitive drum 26, a main charging device 30, a developing device 32, the registration roller pair 24, a transfer/separation device 34, a cleaning station 36, etc. are provided in order in the rotational direction of the photosensitive drum 26. A fixing section 38 and a discharge port-ra pair 4o are provided at a position on the downstream side of the transfer sheet conveyance direction of the transfer sheet 26, that is, on the front side.

On the other hand, on the upper surface of the copying section 14, a document supply passage 42, an exposure section 44, and a document reversing member 45 are provided in this order. It is equipped with a lens 50, etc.

Additionally, within the copying unit 14, there is a Baber empty switch 52 that detects whether or not transfer paper is present in the paper feed cassette 18, and a Baber empty switch 52 that detects whether the paper feed cassette 18 is completely installed. Paper cassette insertion switch 54
is provided.

Furthermore, the two on the upstream side in the transfer paper conveyance direction of the conveyance roller pair 20
Jam detection switches 56 to 59 are disposed at positions downstream of the photosensitive drum 26 in the transfer paper transport direction, and downstream of the discharge port-ra pair 40, respectively. These switches 56 to 59 are for detecting the transfer paper passing through each position, and if the transfer paper is not detected by each switch 56 to 59 after a predetermined period of time has elapsed after the transfer paper was fed, It is now determined that a jam has occurred.

Further, the document supply passage 42, the transfer/separation device 34, the fixing section 38, the discharge port-ra pair 40, etc. are incorporated into a common unit housing 60 and configured as a single unit. It can be pulled out to the front side.

As shown in FIG. 1, inside the transfer paper stock tray 16, a transfer paper stock tray 61 that is highly inclined towards the front side is disposed, and a transfer paper guide plate 62 is provided at the entrance side portion, that is, the front side portion. is provided. The transfer paper guide plate 62 is located between a position along the front wall of the transfer paper stock stand 16 (the position indicated by the solid line in Figure 1) and a position protruding forward from the front wall (the position indicated by the two-dot chain line in the figure). The transfer paper discharged from the pair of paper discharge rollers 40 of the copying section 14 is transferred to the transfer paper stock tray 6 at a position that protrudes forward.
It will guide you to 1. Further, above the transfer paper stock tray 61, a transfer paper pressing member 63 made of a luminor or the like is arranged.

The roll paper cutting device 12 is connected to this transfer paper stock stand 1.
It is attached to the front side wall of 6 so that it can be raised and lowered. The mounting structure and drive structure will be explained based on FIGS. 3 to 6.

A pair of guide rails 64 opening inward are fixed to both left and right sides of the front side wall of the transfer paper stock table 16. This guide rail 64 is connected to the transfer paper stock stand 16.
It extends from the lower end of the unit housing 60 in the copying section 14 to the lower end of the unit housing 60 in the copying section 14, and the roll paper cutting device 12 can be moved up and down within this range (see the solid line and the two-dot chain line in FIG. 1).

On the other hand, the roll paper cutting device 12 is rotatably provided with shafts 68 and 69 passing through the left and right inner plates 66 (FIGS. 4 to 6), and both ends of these shafts 68 and 69 are , rollers 71 and 72 which are loosely fitted into the guide rail 64 are fixed respectively.

Immediately inside each roller 71.72 is a subrocket 74.
75 are each fixed. The same chain 76 is wound around these sprockets 74 and 75 in a loop as shown in FIGS. 3 and 6, and the upper and lower ends of these chains 76 are connected to the upper and lower ends of the guide rail 64. are fixed respectively.

Further, a gear 78 is fixed to one end of the shaft 72 (the end on the near side in FIG. 3), and an idle gear 80 is rotated toward the inner plate 66 at a position where it meshes with the gear 78. Possibly supported. On the other hand, a drive motor 82 is fixed to the outer surface of the inner plate 66 via a bracket (not shown), and a gear 84 that meshes with the idle gear 80 is fixed to a drive shaft 83 of the drive motor 82. ing.

That is, the roll paper cutting device 12 has rollers 71 and 7.
The roll paper cutting device 12 is supported at a predetermined height position by the guide rail 64 in contact with it and the chain 76 wound around each subrocket 74, 75, and the drive motor 82 of the roll paper cutting device 12 itself operates. The rotation is sequentially transmitted to the shaft 69 through the gear 84, the idle gear 80, and the gear 78, and the subrocket 75 fixed to the shaft 69 rotates and winds up the chain 76, so that the entire roll paper cutting device 12 is guided. It is adapted to be driven up and down along rails 64.

Further, a pulse plate 86 as shown in FIG. 5 is fixed to the shaft 69, and an optical sensor equipped with a light emitting element and a light receiving element is installed at a position sandwiching a slit 87 provided in the pulse plate 86. Rotation amount detector (transfer amount detector)
88 are arranged.

Furthermore, this roll paper cutting device 12 includes a control device 9 consisting of a microcomputer as shown in FIG.
0 is built in, and the detection signal from the rotation detector 88 is input to this control device 90.

Further, a transfer paper ejection tray 99 (see FIG. 1) that opens diagonally upward is provided at the top of the roll paper cutting device 12, and the roll paper cutting device 12 is at the upper limit position (the position indicated by the solid line in FIG. 1). In this state, the transfer paper discharged from the discharge port-ra pair 40 is stored on the transfer paper discharge tray 99.

Next, this paper roll is cut and cut! The internal structure of 12 will be explained based on FIG.

Inside the roll paper cutting device 12, a roll shaft 93 for a roll paper 92 is installed so as to be movable up and down along a long hole 94 provided in the side wall of the device. Furthermore, a pair of transport rollers 95 and 96 are rotatably provided at the bottom of the device, and the roll shaft 93 is urged downward by a spring (not shown), so that the circumferential surface of the roll Wi92 matches its winding diameter. Regardless, the entire roll paper 92 is always pressed downward so as to be in contact with the transport rollers 95, 96. Further, the conveyance port 595 on one side is connected to the driven side portion of the first clutch 98 as shown in FIG. 7 via a gear not shown.

A cover 100 is attached to the front side of the device (right side in FIG. 8) so that it can be opened and closed, and the roll paper 92 inside can be manually set when the cover 100 is open (the state indicated by the two-dot chain line in FIG. 8). It has become.

Above this roll paper 92, in order from the side closest to the roll [92], there is a presser roller (only shown in FIG. 1) 102, a pair of feed rollers 103 and 104, and a pair of cutters 10.
5, 106, and a pair of discharge ports 10B, 109, above which a discharge port 110 for the roll paper 92 is provided.

Among the feed rollers 103 and 104, one of the seven feed rollers 103 is connected to a driven side portion of a second clutch 114 as shown in FIG. 7 via gears 111 and 112. The other feed roller 104 is rotatably attached to a rotating bracket 118 via a plate spring 116, and is normally pressed against the feed port roller 103 by the biasing force of the plate spring 116. The pressure contact can be released by rotating the rotating bracket 118 in the direction of arrow B in FIG. 8 with the cover 100 open.

One cutter 105 has a shape in which a part of a circle is cut out with a straight line, and is connected to a cutter solenoid 120 shown in FIG. 7, and is driven to rotate when this cutter solenoid 120 is switched from off to on. It is now possible to do so. The other cutter 106 is provided at a position opposite to the force vine 105 with the pulled-out roll paper 92 in between, and while the cutter 105 is rotating, the cylindrical surface and the plane forming the outer circumferential surface of the cutter 106 are connected. The rolled paper 92 is cut by rubbing the edge of the intersection line with the edge of the other force cutter 106.

A pair of discharge port rollers 108 and 109 are in pressure contact with each other, and one of the discharge port rollers 108 is connected to the feed port roller 103 via a gear train (not shown), and is interlocked with this feed roller 103. It is designed to be driven.

This roll paper cutting device 12 has a built-in main motor 122 which is a driving source for each of the rollers described above, and this main motor 122 is connected to a motor control board 123 (FIG. 7). A driving roller 124 is fixed to the drive shaft of the main motor 122, and a belt 126 is applied to the driving roller 124 and each driving side portion of the first clutch 98 and the second clutch 114.

Therefore, by switching the first clutch 98 from OFF to ON, the conveying roller 95 is switched from an idling state to a driving state, the rotational force of the drive roller 124 is transmitted to the conveying roller 95, and the second clutch 114 is By switching from off to on, the feed roller 103 is switched from an idling state to a driving state, and the rotational force of the driving roller 124 is transmitted to the seven feed roller 103. Further, in this embodiment, each gear ratio is set so that the drive rotation speed of the feed port roller 103 is twice the drive rotation speed of the conveyance roller 95.

In addition, in FIG. 8, 128 and 129 indicate the belt 12.
6 tension port.

An operating section 130 as shown in FIG. 7 is provided at a suitable location on the outer surface of the roll cutting device 1112. This operation unit 130 includes a numeric keypad 132, a stop/clear key 134, a start key 136 shown in the figure, a size designation key for inputting the cutting size of the roll paper, and a size specification key for starting the movement of the roll paper cutting device 12. It is equipped with a moving start key for first class. Then, by using the numeric keypad 132 of this operation section 130, the desired roll paper cut size and roll paper conveyance speed are set to the control device 90.
You can now enter settings.

Further, a first switch 138 is provided in the device to detect opening/closing of the cover 100, and the power lever 105.1
The position on the Fl side above 06, and the discharge port-ra 108
．． A second switch 139 and a third switch 140 for detecting the roll paper 92 are disposed downstream of the switch 109, respectively.

Roughly speaking, the conveyance roller 95 and the feed port roller 10
Rotation detectors 143 and 143 are each fixed to a shaft to which pulse plates 97 and 142 are fixed, and each pulse plate 97 and 142 has a rotation detector 143 and a light sensor equipped with a light emitting element and a light receiving element at positions corresponding to the slits of each pulse plate 97 and 142, respectively. 144 (FIG. 7) are provided, and detection signals from these rotation detectors 143, 144 and the switches 138 to 140 are input to the control device [90].

This control device 90 includes a CPU 146, a ROM 148, and a RAM 150, and mainly performs the following control operations.

(a) In the operation unit 130, based on the transport speed signal inputted by the numeric keypad 132, data regarding the transport speed is written in the RAM 150, and a motor clock signal corresponding to this data is output to the motor control board 123. Controls the rotational speed of the main motor 122. Specifically, the motor rotation speed is controlled by changing the frequency or duty ratio of the motor clock signal.

(b) When the movement start key is turned on in the operation unit 130, the drive motor 82 is activated, and the time point when the rotation amount detector 88 detects a predetermined number of pulses after the drive motor 82 is activated. The drive motor 82 is stopped. The above predetermined number of pulses is the number of pulses corresponding to the distance from the upper limit position (paper feeding position; solid line position in Figure 1) of the roll paper cutting device 12 to the lower limit standby position; The upper limit position is set at such a position that the discharge port 110 of the roll paper cutting device 112 matches the transfer paper insertion port 28 of the copying section 14.

(C) First switch 138, third switch 140.
．． Based on the detection signals of the rotation detectors 143 and 144, a motor on/off signal and a motor clock signal are output to the motor control board 123 at a predetermined timing, and each clutch 98 and 114 and cutter solenoid 120 are switched on and off. .

(d) When the second switch 139 is turned on, the display lamp 1 provided near the operation unit 130
52 to inform the operator of the setting status of the roll paper 92.

On the other hand, the copying machine main body 10 has a built-in main body control device [160] as shown in FIG. 9, which controls the drive of the roll paper cutting device 12. In addition, a main body operating section 162 is provided at a suitable location on the outer surface of the copying machine main body 10, and through this main body operating section 162, in addition to manual feeding mode and cassette paper feeding mode, roll paper feeding mode can be separately selected. It is configured so that it can be done.

In addition to the command signal from the main body operation section 162, the main body control device 160 receives detection signals from the above-mentioned paper entry switch 52, paper feed cassette insertion switch 54, and each jam detection switch 56 to 59. <till control is performed based on each signal. Specifically, in any of the following cases, a control signal is output to the control device 90, and the roll paper cutting device 12 is driven downward from the upper limit position to the lower limit position under the control of this I1 controller 190, and the display is The unit 164 is configured to issue a warning to the outside.

■ When manual feed mode is selected on the main body operation section 162.

■ When the paper empty switch 52 detects that the paper cassette 18 is out of transfer paper.

(2) When a jam is detected by each of the jam detection switches 56 to 59.

Next, the operation of this device will be explained. First, when the cassette paper feeding mode or roll paper feeding mode is selected on the main body operation section, the roll paper cutting device 12 is held at the upper limit position, and in the roll paper mode,
The cut roll paper, that is, the transfer paper, is supplied into the copying machine main body 10 from the discharge port of the roll paper cutting device 12 through the transfer paper insertion 028.

On the other hand, when the manual feed mode is selected, a signal is output from the main system III @ device 160 to the control device 90 of the roll paper cutting device 12, and the roll paper cutting device 1112 is automatically driven to the lower limit position. Since the transfer paper insertion slot 28 is exposed to the front side, copying operations can be performed by manual paper feeding by simply inserting the transfer paper from the transfer paper insertion slot 28 in this state. Further, after this manual paper feeding is completed, the roll paper cutting device 12 may be moved to the upper limit position again by operating the movement start key.

In this embodiment, the paper feeding operation performed in the roll paper feeding mode is as shown in the flowchart of FIG. This operation will be explained below.

First, the roll paper 92 is set in the roll paper cutting device 1112, and the leading edge of the roll paper 92 is aligned with the cutting position by the cutters 105 and 106 by manual or automatic adjustment.

After such paper feeding preparation operation <<Step S1>> is completed, by turning on the start key 136 of the operation unit 130 (Step S2>), the control device 90 turns on the motor IIi.
A motor on/off signal and a motor clock signal are output to the lJ m M board 123, and the main motor 122 is driven in normal rotation (step S3). This speed corresponds to the roll paper transport speed input using the numeric keypad 132, and a motor clock signal corresponding to the speed is output to the motor control board 123. As a result, if the first clutch 9'8 is turned on, the conveyance port 9
5 rotates at a speed equal to the transfer paper conveyance speed in the copying section 14, and if the second clutch 118 is turned on, the feed roller 103 will rotate at twice the speed of the conveyance roller 95. .

In this state, the control wJVR@90 first starts with the second clutch 1.
14 is turned on (step S4). This results in
The feed roller 103 is rotationally driven in the counterclockwise direction in FIG.
The transfer paper is carried out toward the transfer paper insertion slot 28.

At this time, the rotation of the feed roller 103 is controlled by the pulse plate 14.
2 and the rotation detector 144, but when the number of pulses of the detection signal reaches the predetermined number of pulses M1 (YES in step S5), the second clutch 114 is switched off (step S6), and the roll Conveyance of paper 92 is stopped. Through the operations from Steps $4 to S6, the roll paper 92 is carried out to a position where its leading edge reaches the pair of paper feed rollers 22 of the copying section 14.

Next, the first clutch 98 is turned on (step 87), so that the conveying roller 95 is rotationally driven, and the rotation is detected by the rotation detector 143. At the point in time (YES in step S8), the first clutch 98 is switched off (step S9), and the rotational drive of the conveyance roller 95 is stopped.

Through these operations of steps 87 to S9, the conveyance roller 9
Only the feed roller 103.1 is rotationally driven.
Deflection is formed at the front side portion of 04. at this point
Each roller is in an idling state and is ready to wait for the copying machine main body 10 to start feeding paper.

Thereafter, when the paper feed roller 22 is operated in the copying machine main body 10 and the paper feed operation of the roll paper 92 is started, the roll paper 92 in the roll paper cutting device 12 is pulled upward and comes into contact with this roll paper 92. The feed roller 103 rotates.

When this rotation is detected by the rotation detector 144 (YES in step S10), the control device 90 controls the first clutch 98
is turned on (step S11), the conveyance port roller 95 is rotationally driven, and when the number of pulses of the detection signal of the rotation detector 143 reaches the predetermined number of pulses M3 (YES in step S12), the first clutch is turned on. 98. Here, the number of pulses M3 is the number of pulses (M - m >.Therefore, these steps S11 to $1
3, the roll paper 9 is cut in the roll paper cutting device 12.
2 is transported by a distance corresponding to the number of pulses M3 (-M-m) at a speed equal to the paper feeding speed in the copying machine main body 10.

Following this, the control device @90 turns on the second clutch 114 (step Sg), rotates the feed roller 103, and at the same time, when the number of pulses of the detection signal of the rotation detector 144 reaches the predetermined number of pulses M4 (YES in step S15), the second clutch 114 is switched off (step Ss). Here, the number of pulses M4 is set to the number of pulses m, and therefore, by the operations in steps 814 to SI5, the roll paper 92 is cut in the roll paper cutting device [12] at the paper feeding speed in the copying machine main body 10. It is transported by a distance corresponding to the number of pulses M4 (-m) at a speed twice that of M4 (-m). As a result, the roll paper 92 is carried out by an extra distance corresponding to the number of pulses m/2,
A bend is formed in the front part of the cutters 105 and 106 to take the tension in cutting.

Next, the control device 90 turns on the cutter solenoid 120 for a predetermined period of time (step $17), so that the cutter 10
5 is rotated once to cut the roll paper 92. after that,
The 11th end of the cut roll paper 92 is connected to the third switch 140
When the switch 140 is turned from on to off (step S2), the main motor 122 is turned off (step Ss), and the paper feeding operation ends.

Note that the present invention is not limited to such embodiments, and may take the following embodiments as examples.

(1) In the above embodiment, after manual paper feeding is completed, the roll paper cutting device @12 is returned to the upper limit position by manually operating the movement start key.
For example, when the cassette paper feeding mode or roll paper feeding mode is selected after manual paper feeding is completed, the main illumination device 160 automatically returns the roll paper cutting device W112 to the upper limit position. may be used.

(2) In the above embodiment, the roll paper cutting device 12 is attached to the copying machine main body 10 so as to be movable up and down, but in the present invention, the roll paper cutting device 12 is separated from the paper feeding position and the unit housing 60. For example, roll paper cutting 811 may be used as long as it can be moved to a standby position.
2 may be mounted so as to be movable in the horizontal direction.

(3) In the above embodiment, the roll paper cutting device 12 is driven by the drive motor 82, but in the present invention, other driving means may be used, or the roll paper cutting device 12 is manually driven. It may be moved. Further, the driving means does not necessarily need to be provided on the roll paper cutting device W112 side, but may be provided on the copying machine main body 10 side.

〔Effect of the invention〕

As described above, the present invention provides a main body of an image forming apparatus having a transfer paper insertion slot, with a roll paper cutting device placed at a paper feeding position corresponding to the transfer paper insertion slot and at a standby position away from the transfer paper insertion slot. The roll paper cutting device is movably attached to the image forming apparatus and includes a control means for moving the roll paper cutting device from the paper feeding position to the standby position when the manual feed mode is selected in the image forming apparatus. When the roll paper is in the paper feeding position, roll paper can be automatically fed from the transfer paper insertion slot in the image forming apparatus main body using the roll paper cutting device, and manual feeding mode is selected. In this case, since the roll paper cutting device automatically moves to the standby position, paper can be manually fed from the transfer paper insertion slot without performing any other operations. That is, there is an effect that even roll paper can be easily used as transfer paper using an existing device without impairing the workability of manual paper feeding.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an image forming apparatus according to an embodiment of the present invention, FIG. 2 is an internal structural diagram of a copying section in the same image forming apparatus, and FIG. 3 is a roll paper cutting device in the same image forming apparatus. An overall configuration diagram showing the drive structure of the
5 is a sectional view taken along line V-IV, FIG. 5 is a sectional view taken along line v-v in FIG. 3, FIG. 6 is a view taken along arrow A in FIG. 3, and FIG. 8 is an internal structure diagram of the roll paper cutting device, FIG. 9 is a block diagram showing the main parts of the image forming device, and FIG. 10 is the roll paper cutting device. 3 is a flowchart showing a control operation by the control device of FIG. DESCRIPTION OF SYMBOLS 10... Copying machine {image forming apparatus} main body, 12... Paper cutting device, 28... Transfer paper insertion slot, 82...
Drive motor (drive means), 92...roll paper, 110
...Discharge port, 160... Main body control device (control means)
, 162... Main body operation section (mode input means).

Claims (1)

[Claims] 1. An image forming device that has a transfer paper insertion slot and is configured to form an image on the transfer paper inserted from the transfer paper insertion slot, has a built-in roll paper, and cuts and discharges the roll paper. A roll paper cutting device that discharges the paper to the outside from the outlet is placed between a paper feeding position where the supply port of the roll paper cutting device matches the transfer paper insertion port of the image forming device and a standby position away from the transfer paper insertion port. a driving means for moving the roll paper cutting device; and a roll paper feeding mode for feeding paper from the roll paper cutting device as a paper feeding mode or for inserting the transfer paper. A mode input means for selecting a manual feed mode in which paper is manually fed from the mouth, and a control means for moving the roll paper cutting device to the standby position when the manual feed mode is selected by the mode input means. An image forming apparatus characterized by: