JPH0621954B2 - Copying device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement in a transport mechanism of a copying machine using a photosensitive material.

[Conventional technology]

In a copying machine that uses a photographic light-sensitive material to perform image exposure of an original plate for printing, the process of image exposure can be performed at high speed because the sensitivity of the light-sensitive material is high, but development, fixing, washing with water,
Processing steps such as drying had to be done at a much slower rate. Therefore, in the finishing process of color photographs, etc., the image exposure process is pulled out from a long roll of photographic paper roll, and the negative master plate corresponding to it is projected and exposed, and the printer finishes winding exposure printing in a continuous roll form. The printer and the cutter are separated from each other by the automatic developing machine that loads the exposed photographic paper roll and specially processes the developing, bleaching, fixing, washing and drying processes, and the cutter that cuts each screen. It was customary to use a combination of several automatic machines for each one. Although such a device and its organization are suitable for large-scale printing at a photo lab, they become inconvenient when trying to make small copies as needed with one-touch operations such as color copying, and as a part of business processing. It is desirable that the steps be integrated into one device. Therefore, the applicant of the present invention proposed a copying apparatus of Japanese Patent Application No. 60-81691 on April 15, 1985. As shown in the sectional configuration view of FIG. 7, there is a document table 2 on the main body 1, and the document is exposed to the exposure lamp 4, the reflecting mirrors 5, 6, 7, 9 ,.
A supply unit 11 in which a magazine 12 'containing a roll 12 of photosensitive material is loaded between an exposure device 3 including a photographing lens 8 and a processing unit 24 for developing, bleach-fixing, stabilizing and drying.
And sandwiching conveyors 14 and 14 'for feeding out photosensitive material, cutter 22, measuring rollers 16, 16', 17 and 17 ', sandwiching and conveying conveyors 18 and 19 for sheet-shaped photosensitive material after cutting the cutter, and receiving from the conveyors. A photosensitive material transporting section 13 having nipping rollers 20, 20 ', 21, 21' for delivering the photosensitive material at the exposure position 40 is incorporated. Then, the photosensitive material pulled out from the photosensitive material roll is cut into a sheet by a cutter 22 to form a sheet, which is then transferred to the conveyors 18, 19 and further transferred to the nip roller at the exposure position to complete the exposure of the sheet of photosensitive material. The material is transported into the processing station where it is dried to complete the copy.

(Problems to be Solved by the Invention) In a copying machine, particularly in a scanning exposure type copying machine as shown in FIG. 7, the movement state of the photosensitive material at the exposure position affects the finish of the image quality. That is, a cutter or the like that makes a cut seesaw from the roll photosensitive material is on the photosensitive material conveying path,
If the photosensitive material is placed close to the exposure device and the exposure position, the photosensitive material will be located across the cutter and the exposure device, and the photosensitive material at the exposure position will be affected by devices other than the exposure and will move. This causes fluctuations in speed and the like, which causes deterioration of image quality.

In order to prevent this, it is conceivable to dispose the other device described above away from the exposure position, but there is a drawback that the device becomes large.

SUMMARY OF THE INVENTION It is an object of the present invention to solve such a problem and to provide a copying machine which is small in size and which can obtain a high-quality image with high copying ability and copying efficiency.

[Means for solving problems]

The purpose of this is to revisit the conventional method in which the supply / conveyance unit of the photosensitive material including the scale cutter is interposed between the exposure device and the developing device. There is no cutting, it is made independently on the right side, and the synchronism of the optical system of the exposure device and the photosensitive material at the exposure position
It is to improve the scanning accuracy and improve the copying ability and the copying efficiency without increasing the size of the copying apparatus according to the present invention.

The purpose is to send the roll photosensitive material to a conveying path having a branch path, a cutter for cutting to a predetermined length, and a sheet photosensitive material that has been cut and further sent out to the conveying path by feeding back to the sheet photosensitive material. What is claimed is: 1. A copying apparatus, comprising: an image exposure device that provides slit exposure; and a processing device that develops the exposed sheet photosensitive material to form a visible image, and transports the sheet photosensitive material during the slit exposure by the backward feeding. The speed is maintained in a constant medium speed region, and the conveying speed is a high speed region until the sheet photosensitive material after the slit exposure is finished is fed back and forward to the inlet of the processing device and the drying finish from the processing device inlet. This is achieved by a copying apparatus characterized in that the low speed area in the processing apparatus until completion is made different from each other.

(Embodiment) An embodiment of the copying apparatus of the present invention will be described with reference to the schematic sectional views shown in FIGS. 1 and 2. Members having the same functions as those of the conventional example are denoted by the same reference numerals.

This copying apparatus 1 is a photographic light-sensitive material (hereinafter simply referred to as a light-sensitive material).
And an exposure device 3 including a moving optical system for scanning and exposing a document on the document table 2, and a processing unit 24 for developing, bleach-fixing, stabilizing and drying.

The sensitive material supply / conveyance unit 50 is provided as a unit to the right of the exposure device 3 and the processing unit 24, and a magazine 53 loaded with a sensitive material roll 54 is mounted at the right end, and the leading portion of the sensitive material is a supply roller.
It is held by 55 and its pressure roller 56. Following that, there is a cutter 57, and further guide plates 58, 59,
80,62,63,64,65,70,71,75,76 and second branch point B described later
A transport path 101 for the sensitive material is formed by the movable guide plate 66 of the transport roller 60, and transport rollers 60, 68, 73 driven in synchronization with the supply roller 55 and crimpable thereto are formed in the middle of the transport path. Rollers 61, 69, 74 are provided. Further, a photosensitive material winding stocker 102 formed by guides 77 and 78 having a semicircular cross section is connected to the upper part of the transport path 101.

Further, a first branching conveyance path 103 formed by the combination of the guide plates 82, 83 and the guide plates 58, 59, 80 of the conveyance path 101 branches downward at a first branch point A in the middle of the guide plate 58. Is provided.

A second branch conveyance path 104 formed by the guide plates 65 and 87 at the second branch point B and the movable guide plate 66 is formed, and the conveyance rollers are driven in synchronization with the conveyance rollers 60, 68 and 73.
85 together with the roller 86 that presses it onto the second branch conveyance path
It is provided in the middle of 104.

Further, an automatic processor sensor 95 is provided at the tip of the second branch conveyance path 104, and the tip is connected to the connection conveyance path 105 to the processing section 24 which is composed of the guide plates 88 and 89.

Further, near the magazine 53, near the supply roller 55, a sensor 91 for detecting the end of the film in the magazine, in the middle of the conveying path, the first JAM detecting sensor 92 is above the conveying roller 60, and the paper size sensor 93 is second. Below the upper conveyance roller 68 at the branch point B, the second JAM detection sensor 94
They are provided above 73, respectively.

Then, the exposure position 40 at which the original image is formed is the conveyance roller.
It is provided on the conveyance path 101 in the middle of 68 and 73.

The drive of each conveyance roller 60, 68, 73, 85 and the supply roller 55 is
The DC servo motor is driven through the drive transmission device, the high speed clutch, the brake and the low speed clutch, and the brake. The DC servo motor switches the clock frequency,
The rotation speed is set to be large or small, and when each of the transport rollers has the high speed clutch, it is 100 mm /
The transport speed of S and 300 mm / S is obtained.
Further, switching of the ultra-low speed conveyance of 4 mm / S to 7 mm / S can be performed by connecting to the low speed clutch with a speed reducer. Further, the supply roller 55 is driven from the drive transmission device having the high-speed clutch brake through a clutch dedicated to the supply roller 55, and the supply roller is driven only to feed the sensitive material to the first conveying path 101. The drive is stopped after the cutter is activated.

The exposure device 3 is arranged above the image forming apparatus 1 and exposes the original on the original table 2 to the exposure lamp 4 with a reflecting mirror on the first moving table 4A.
Scanning is performed by the reflecting mirror 5, the reflecting mirrors 6 and 7 on the second moving table 6A, and the projection lens 8 to form an image at the exposure position 40. The scanning speed of the first moving table 4A is twice as fast as that of the second moving table 6A so that the length of the optical path from each scanning position on the document to the exposure position 40 is constant. There is. When the original is magnified 1.5 times or reduced 0.5 times, the reflecting mirrors on the second moving table 6A are reset to the positions of 6a and 7a, respectively, and the projection lens 8 is magnified 8a. It is designed to be reset at the positions of 8b. The movement for resetting is performed by operating the zoom motor.

Further, the projection lens is provided with a diaphragm 12A, which is operated by a diaphragm motor to adjust the amount of light, and a filter frame 14A for color balance correction and a filter motor which operates it for adjustment are located near the diaphragm 12A. It is provided in.

A shutter 17A operated by a solenoid 16A is provided near the exposure position. The shutter 17A is closed except during the image exposure scanning to prevent light leakage of the sensitive material to the supply / conveyance unit 50.

The processing device 24 is placed below the exposure device 3 and is connected to the connection transport path 10.
The exposed photosensitive material is connected to the photosensitive material supplying and conveying section 50 on the left side by 5 and supplied to the color developing tank 25 through the guide rollers 26 and 27. The processing tank comprises a color developing tank 25, a bleach-fixing tank 30, a first water-washing alternative stabilizing tank 31, and a second water-washing alternative stabilizing tank 32, which are sequentially arranged. , 48 from the pump, and during the replenishment, it mixes with the circulating liquid of the processing liquid in each processing tank and supplies it while adjusting the temperature with the heater for adjusting the liquid temperature. The treatment liquids are supplied one by one from the replenishment tank 49, and each processing solution is kept at a constant level in each tank while overflowing. Each tank has an outer guide frame 36, each of which is provided with a drive conveyance roller 28 at a predetermined interval, and also has an inner guide frame 37, to which a pressure roller 29 that is in pressure contact with the drive conveyance roller 28 is attached. A transport path 38 is formed in each tank by the roller rows of the frames 36 and 37 and the rollers 28 and 29.

Further, the reversal exposure device 42 provides the fog exposure in the liquid when the photosensitive material is conveyed into the first conveying path in the color developing tank 25. The device 42 includes a lamp house
43,44 are provided in each lamp house, cold cathode tubes 43A, 44A
The illumination windows 43B and 44B of the lamp house are provided with color correction filters 43C and 44C to supply the illumination chamber 45 with component light corresponding to the type of the photosensitive material. That is, both lamps can be switched for irradiation depending on the type of the photosensitive material. In this way, the reverse exposure of the light component suitable for each photosensitive material is exposed to the photosensitive material being conveyed through the exposure window 46.

The exposed photosensitive material passes through the transport path 38 of each tank, is sandwiched between the transport rollers 28 and the pressure bonding rollers 29 provided at predetermined intervals in the transport path, and is transported while undergoing a photochemical reaction. The structure is such that it proceeds, passes through the drying chamber 35, and is finished and collected.

Each conveying roller 28 of the sensitive material in each processing tank is connected from an AC type speed control motor through a drive transmission device which is a combination of a worm, a worm wheel, a spiral gear and a spur gear. An encoder is directly connected to the AC speed control motor, and the tacho generator of the encoder detects the amount of self-generated power and feeds it back to control the conveyance speed while controlling the current and voltage. With this, it becomes possible to switch and drive the transportation speed in the tank to an arbitrary set speed of 4 mm / S to 7 mm / S.

In addition, the color developing tank outlet, the bleach-fixing tank outlet, the first and second
The stabilizing tank outlet, the inlet of the drying chamber, and the outlet of the drying chamber are provided with JAM detection sensors so that the process when a conveyance failure occurs can be easily determined. Further, a liquid surface drop detection sensor and a liquid temperature sensor are also provided so as to maintain appropriate developing conditions.

Having described the configuration of each part, the function and action of the supply / conveyance part will be described with reference to FIG. Further, in the embodiment of the present copying apparatus, there are three sizes A as shown in FIG.
Images can be formed on 4, A3 and B4 size light-sensitive materials. Then, A4 and A3 use sensitive material rolls of the same width of 297 mm, B4 size uses sensitive material of different width, and the total length is
A4 size is 210mm, A3 size is 420mm, and B4 size is 364mm. However, it goes without saying that the present invention is not limited to this and can be applied to any size.

The leading end of the photosensitive material roll 54 in the magazine 53 held between the supply rollers 55 and 56 is a command transmission means for the operation section such as setting the number of copies, the copy size, the type of the photosensitive material, and inserting a copy start instruction button. Thus, the transfer of the sensitive material is started, the material passes through the cutter portion 57, rises up the transportation path at a speed of 100 mm / S, passes through the transportation rollers 60, 61, the JAM detection sensor 92, and the position of the sensitive material size sensor 93. And the sensitive material size sensor turns on. This is a distance of 199.5 mm from the cutter cutting position 57A, and the difference between it and the measured length by reading the set size with the button that was inserted earlier, 210- 199.5 for A4 size = 10.5 mm 420-for A3 size 199.5 = 220.5mm For B4 size, it is further fed by 364-19.5 = 164.5mm.

The timer counts 1 at a cycle of 3 mS and the transport speed is 100 mm.
Since it is / S, it corresponds to 1 pulse 0.3 mm, so the counter setting value is 10.5 mm / 0.3 mm for A4 format = 35 pulses 220.5 mm / 0.3 mm for A3 format = 735 pulses 164.5 mm / 0.3 mm for B4 format If the pulse motor is directly connected to the high speed clutch and brake to drive and stop until the number of pulses reaches 548 pulses and the above pulses are counted, an accurate measurement is made for each size.

At this point, the cutter 57 is actuated and the preceding sensitive material measured from the sensitive material roll 54 is cut off to become a sheet sensitive material. The remaining sensitive material roll remains in this state, the clutch of power transmission from the motor is turned off, the feeding is stopped, and the sheet is held by standby, and the sheet sensitive material is sandwiched by the respective conveying rollers and conveyed upward, and the leading end is wound up. When the stocker 102 is wound into the stocker 102 and the rear end passes through the sensitive material sensor 92, the sensor is OF
It becomes F, and from this point on, when the timer counter is made to count 303 (90.9 mm), the high speed clutch connected to the pulse motor is released and the brake is activated at the same time. In this way, the rear end is at a position 90.9 mm ahead of the position of the photosensitive material sensor and at the exposure position 40
Stop 20 mm above. This completes the loading before exposure. The sheet light-sensitive material is then transferred to the next exposure process. In synchronism with the start of the original scanning function of the exposure device, the sheet sensitive material is driven backward by a motor to switch back, and the rear end portion up to now is 100 mm on the conveying path 101. Reverse at S speed.

By doing this, even if the distance between the cutter 57 and the exposure position 40 is short, it is possible to copy a large-sized photosensitive material sheet in a compact space, and the cutter does not operate during image exposure. And does not adversely affect the optical system of the exposure apparatus. Therefore, image exposure is performed by scanning in a precisely synchronized manner, and a high quality copy can be obtained.

The synchronization with the exposure device is performed by the O of the optical system start sensor.
This is performed by determining the drive start timing of the transport system based on the N signal. The driving start timing is determined by the copy magnification M and the timer setting time is 0.4 × M × 0.2se.
Set by c.

Then, whether or not the exposure is completed is determined by measuring the time for conveying the sheet photosensitive material. that is Calculated by, 2.4 sec = 800 pulses for A4 size, 3.94 sec = 1313 pulses for B4 size, 4.50 sec = 1500 pulses for A3 size. When these pulses are counted, the high speed clutch is released and the brakes work at the same time. Is done.

As a matter of course, the rear part of the sheet light-sensitive material at the end of the exposure (the leading part of the sheet at the time of cutting) stops 30 mm−20 mm = 10 mm past the exposure part 40. The leading edge (the trailing edge of the sheet when cut) passes through the first branch point A and is located in the first branch conveyance path 103.

Since the exposure is completed here, the sheet sensitive material must be sent to the processing section 24. For that purpose, the switchback is performed again, and the conveyance rollers 60, 61, 68, 69, 73 in the first branch conveyance path 103 and the conveyance path 101 with the trailing end (sheet leading portion at the time of cutting) as the leading end. , 74 in the reverse direction to the drive motor (DC servo motor) is switched to high-speed rotation, high-speed clutch brake is directly connected, 300mm / S at high speed,
The leading part is fed into the hoisting stocker 102, and when the rear end passes through the sensitive material sensor 93, the high speed clutch is disengaged from the drive motor (DC servo motor) by the signal of the sensor OFF, and at the same time, the brake is applied. Stop the material. Next, the movable guide plate 66 at the second branch point B is opened by the gate solenoid in the direction in which the second branch conveyance path is opened, and the trailing edge of the sheet sensitive material (the trailing edge of the sheet at the time of cutting) is the leading edge. Then, the high speed transfer of 300 mm / S was started, and when the leading part reached 33.5 mm after passing the sensor 95 in front of the automatic processing machine, the high speed transfer of 300 mm / S was 4 mm depending on the type of the photosensitive material.
/ S to 7 mm / S It switches to low speed conveyance which is set arbitrarily and it is sent from the connection conveyance path 105 into the color developing tank 25 and each conveyance roller 28,29 of the processing section also controls the speed to drive the processing section. Since the motor is driven in synchronization with the speed of 4 mm / S to 7 mm / S, it is smoothly delivered. When the trailing edge of the sheet light-sensitive material passes through the front-of-machine sensor 95, the sensor is turned off. At this point, one copying process ends, and this signal turns on the clutch to the supply roller 55 and turns it on. Can be copied.

From the start of the next copying, from 300mm / S to 4mm / S at the machine entrance
It takes about 11 seconds until the next head comes to the speed-down position to 7 mm / S. Therefore, the trailing edge of the sheet photosensitive material one page before is sent at 4 mm / S to 7 mm / S, so 44 mm to 77mm ahead, the interval in the processing tank is 44-33.5 = 0.
It is 5 to 77-33.5 = 43.5 mm.

As described above, the photosensitive material supply / conveyance unit of the image forming apparatus according to the present exemplary embodiment
50 is provided with a switchback path for the scaled sheet photosensitive material in the photosensitive material path between the cutter portion 57 and the exposure position 40,
Furthermore, two switchback paths are provided in the photosensitive material path between the exposure position 40 and the processing section 24, and it is possible to perform measurement, cutting and exposure by smooth conveyance, and to deliver to the processing section. did. However, it is needless to say that it is not necessary to limit the switchback route to two places, and it is possible to deal with one place. In order to reduce the space with a small amount of members, it is advantageous to use two parts.

In this way, the transport path is switched back and used for both the forward and backward paths in order to achieve a large-sized copy by utilizing the transport path in a small space. However, it takes time because the photosensitive material is conveyed over a long distance including the forward and backward paths. Therefore, I want to convey it at the highest speed possible. However, since it is important to improve the accuracy of the conveyance of the photosensitive material sheet for measuring and image exposure, it is necessary to avoid the conveyance speed in this process becoming too high. However, in the next process, from the end of image exposure, the processing device 24
Since there are not many restrictions on the accuracy of the transportation to the entrance, we decided to transport at a very high speed. Then, the transport speed of the photosensitive material in the processing device such as development is set according to the photochemical characteristics of each photosensitive material. The speed is considerably lower than the transport speed until reaching.

In the processing device 24, each of the sheet sensitive materials does not overlap even though the front end and the rear end of each sheet are in contact with each other, and the sheets are continuously flowed and conveyed while maintaining a constant interval, but the conveyance for the scale, If too much time is taken for the conveyance for image exposure and further for the conveyance until the leading edge reaches the entrance of the processing device 24, the above-mentioned orderly flow conveyance cannot be obtained, and the photosensitive material sheets in the processing device 24 are not mutually transferred. The intervals between them open and the number of sheets processed per unit time decreases, resulting in a decrease in processing capacity and processing efficiency.

Therefore, in order to efficiently convey the sensitive material sheet without lowering the processing capacity, as described above, the conveying speed is changed at each stage in the copying apparatus,
The transportation within the required time was reasonably and efficiently completed.

Further, when a JAM occurs during transportation, the sheet sensitive material is transported by a combination of ON and OFF of each sensor of the first JAM detection sensor 92, the sensitive material size sensor 93, and the second JAM detection sensor 94 at each time. Is determined to be normal or abnormal, and when an abnormality occurs, an abnormal portion of the machine is indicated so that it can be easily treated. Further, in the magazine 53 of the supply / conveyance section, as shown in FIGS. 4 and 5, the type of the photosensitive material is discriminated (for example, the reflection type color photographic paper or the transparent positive film) and the roll width. It incorporates a system of identification circuit for clear and easy scanning, and each special magazine has a unique cam special 110
Is provided, the protrusion is detected by the sensor 114, and the protrusion is automatically joined to the identified circuit, and switching is performed so as to correspond to each unique processing speed and the like.

In order to accurately identify and convey the photosensitive material of each width size while accurately controlling the position in the width direction, it is necessary that each magazine is accurately set at the reference position. Therefore, each magazine is provided with a setting pin 121, and this pin is loaded by being guided by the restriction rail 120 provided on the pedestal 118, so that the magazine can be accurately positioned.

Further, since this supply / conveyance unit is attached to the right side of the copying apparatus 1 as a unit, it is possible to perform assembly / disassembly, maintenance, cleaning, etc. by cutting it from the main body 1. And
When a trouble occurs, it is also easy to take out the magazine 53, open the cover 52 with C as a fulcrum, and remove the respective conveyance path guide plates and the conveyance rollers for cleaning.

Sensitive material drawer 115 of magazine 53 containing sensitive material roll 54
Has a lip shape, and this portion is shown in FIGS.
As shown in FIG. 6, when the rollers 55 and 56 are inserted into the supply rollers 55 and 56, the rollers 55 and 56 are inserted into the window 116 formed in the lip of the drawer 115 so that the photosensitive material can be immediately withdrawn at the time of starting. At this time, resin rollers 55a and 56a having an outer diameter slightly larger than that of the supply rollers 55 and 56 are provided at both ends of each shaft, and the resin rollers hit and guide the lip-shaped drawer portion 115 of the magazine. Therefore, the supply rollers 55 and 56 of the photosensitive material are not scratched. After the rollers are fitted in the window 116, the rollers 55 and 56 are in contact with each other, but the rollers 55a and 56a are not in contact with each other, and the positions are shifted as shown in FIGS. By thus setting the magazine on the gantry 118 of the supply / conveyance unit 50, the start-up preparation can be completed with one touch. However, the first one after loading the magazine 53 has a fog in the window. Therefore, the scale of the first sheet is made longer than the prescribed length by a length that takes into account the fog, and a small amount of fog (about 50 mm) is added to the outside of the copy screen for practical use. Is done. The fog may be cut off at a proper time after finishing.

Since this device deals with a sensitive material, it is necessary that the inside of the device is shielded as necessary. Sensitive material supply and transport section
The magazine 50 is shielded from light in the magazine, and the sensitive material roll inside is protected and the sensitive material being transported along the transport path is not only shielded by each guide plate, but also equipped with an open / close cover 52 and a fixed cover 52b for normal operation. The time is interlocked so that it always operates only in the closed state. The opening / closing cover 52 is designed to open around the point C in the event of an abnormality, inspection work, or maintenance work.

(Effect of the invention) Since the present invention conveys the photosensitive material at the exposure position independently of the operation involving the drawing resistance that greatly varies when the photosensitive material is unwound and drawn from a long roll, It is possible to obtain a high-quality image without unevenness in the conveyance, and in the illustrated embodiment, the photosensitive material conveyance path before photographic processing such as development is gathered on one side of the apparatus and the forward and backward paths of the conveyance path are used. In addition, the processing speed was improved by setting the transportation speed at each stage of transportation to match the transportation conditions. Trouble recovery work has become easier, and maintenance work and cleaning work have become much easier. Therefore, the assembly work of the device in the manufacturing process is facilitated and the manufacturing cost is reduced.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view of a copying machine which is an embodiment of the present invention, FIG. 2 is a schematic cross-sectional view of a sensitive material supply / conveying section thereof, FIG. 3 is a dimensional diagram of a sensitive material to be applied, and FIG. Is a side sectional view when the photosensitive material magazine is loaded on the mount, FIG. 5 is a sectional view taken along the line DD of FIG. 4, FIG. 6 is an EE sectional view of FIG. 4, and FIG. 7 is invented by the present applicant. 2 is a schematic view of a conventional copying machine. 3 …… Exposure position, 24 …… Processing device 25 …… Developing tank, 28 …… Processing part transport roller 29 …… Pressing roller, 30 …… Bleaching fixing tank 31,32 …… Water washing alternative stabilizing tank 35 …… Drying Chamber, 36 ... Outer guide frame 37 ... Inner guide frame 38 ... Processing tank transport path, 40 ... Exposure position 42 ... Fog exposure device, 50 ... Sensitive material supply transport section 53 ... Magazine, 54 ... … Sensitive roll 55 …… Supply roller 55a, 56a …… Resin roller 57 …… Cutter, 57A …… Cutting position 56,61,69,74,86 …… Crimping roller 60,68,73,85 …… Transport drive Roller 91 …… End undetected sensor 92 …… First JAM detection sensor 93 …… Sensitive material size sensor 94 …… Second JAM detection sensor 95 …… Self-developing machine front sensor 101 …… Sensitive material conveying path 102 …… Rolling stocker 103 ...... First branch transport path 104 …… Second branch transport path 105 …… Connection transport path 110 …… Cam projection 114 …… Magazine type detection sensor 115 …… Magazine drawer unit 116 ...... window 120 ...... regulating rail 121 ...... regulating pin

Claims (1)

[Claims] 1. A roll photosensitive material is sent to a conveying path having a branch path, a cutter that cuts to a predetermined length, and a sheet photosensitive material that is cut and further sent is sent back to the conveying path and the sheet photosensitive material is cut. A copying apparatus having an image exposure device for providing slit exposure to a sheet and a processing device for developing the exposed sheet photosensitive material to form a visible image, wherein the sheet exposure is performed during the slit exposure by the backward feeding. The conveying speed is maintained in a constant medium speed area, and the conveying speed is dried from the high speed area until the sheet photosensitive material after the slit exposure is fed back to the entrance of the processing apparatus by forward and forward feeding and the processing apparatus entrance. A copying machine characterized in that they are made to differ from each other in a low-speed area in a processing apparatus until completion of finishing.