JPH03111364A - Image recording device - Google Patents

Abstract

PURPOSE:To make rewinding easily by controlling a transport means so that an image recording material is carried to outside a case, and also controlling the transport means so that the image recording material is rewound until its leading edge is accommodated in the case after the material is severed. CONSTITUTION:A transport means 18 arranged in a case 15 draws out an image recording material 16 and carries to outside the case 15, and the transport is made so that the material 16 is rewound. A cutter 20 is installed at the body of this image recording device concerned so as to cut the material 16 carried out of the case 15. A control means 190 controls the transport means 18 so that the material 16 is carried to outside the case 15, and also controls the same means 18 so that the material is rewound until its leading edge is accommodated in the case 15 after the material 16 is cut.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an image recording device, and particularly to an image recording device equipped with a magazine case that is detachable from the main body of the image recording device.

[Prior Art and Problems to be Solved by the Invention] Conventionally, there has been an image recording apparatus that uses a photosensitive material and an image receiving material as image recording materials and transfers an image exposed on the photosensitive material to the image receiving material by heat development transfer. Are known. This image recording apparatus is provided with a photosensitive material magazine case for storing a photosensitive material magazine and a receiving material magazine case for storing a receiving material magazine, which are detachably attached to the main body. The photosensitive material magazine stores a wound photosensitive material, and the receiving material magazine stores a wound image receiving material. In addition, inside each magazine case, each material is sandwiched and pulled out from each magazine.
Nip rollers are arranged to transport the magazines out of each magazine case. A cutter is provided at a position corresponding to the exit side of each nip roller on the main body of the image recording apparatus.

The material carried out by the nip roller is cut into a preset length by a cutter, and subjected to exposure and thermal development transfer processing.

When replacing a photosensitive material magazine or receiving material magazine with a new magazine, or when checking for material clogging, the photosensitive material magazine case or receiving material magazine case is pulled out in the width direction of each material and replaced.

However, in conventional image recording devices, the photosensitive material and image-receiving material are pulled out from the magazine case, so when the magazine case is pulled out, the pulled-out portion of the material comes into contact with the cutter or the main body of the image recording device, making it inconvenient to pull out the magazine case. There was a problem.

The present invention has been made to solve the above problems,
It is an object of the present invention to provide an image recording device in which a case for storing image recording materials can be easily drawn out.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a case for storing a wound image recording material that is detachable from the main body of an image recording apparatus, and a case arranged in the case. a conveying means for pulling out the image recording material and conveying it out of the case and rewinding the image recording material; and a cutter disposed in the image recording apparatus body for cutting the image recording material conveyed from the case. , controlling the conveying means so that the image recording material is carried out of the case, and conveying the image recording material so that it is rewound until the leading edge of the image recording material is stored in the case after the image recording material is cut. The control means is configured to include a control means for controlling the means.

[The working case is configured to be detachable from the main body of the image recording apparatus, and the wound image recording material is stored in the case. The image recording material may be stored directly in the case, or may be stored in a magazine in the case. A conveying means is arranged within the case. The conveyance means conveys the image recording material so that it is unwound and conveyed out of the case, and at the same time, the image recording material is rewound. The cutter is disposed in the main body of the image recording apparatus and cuts the image recording material carried out from the case. The control means controls the conveyance means so that the image recording material is carried out of the case, and
After the image recording material is cut, the conveying means is controlled so that the image recording material is rewound until the leading edge of the image recording material is stored in the case.

In this way, since the leading edge of the image recording material is rewound so that it is stored in the case, the image recording material does not come into contact with the cutter or the main body of the image recording device when the case is pulled out, and the case can be easily pulled out. I can do it. Further, since the image recording material is rewound after being cut, rewinding can be easily performed.

In addition, cases where the case may be withdrawn include:
When at least one of these conditions is met, such as when copying an image is completed, when a jam occurs in the image recording material, when the stop switch is pressed, or when replacing the image recording material, etc. It is preferable to perform a rewinding process.

[Effects of the Invention] As explained above, according to the present invention, after the image recording material is cut, it is rewound so that the leading end enters the case. This has the effect of simplifying the process.

[Embodiment] FIG. 2 shows a schematic overall configuration diagram of an image recording apparatus 10 to which the present invention is applicable.

A photosensitive material magazine case 15 for storing a photosensitive material magazine 14 is disposed to be detachably attached to the image recording apparatus 100 machine 12. In the photosensitive material magazine 14, a photosensitive material 16 is wound into a roll and stored. The photosensitive material 16 is a support coated with photosensitive silver halide, a binder, a dye-donating substance, and a reducing agent, and is photosensitive (exposure).
It is wound with the surface facing inward. The photosensitive material magazine case 15 houses a nip roller 18 for nipping the photosensitive material 16 on the photosensitive material output side of the photosensitive material magazine 14 and pulling it out from the photosensitive material magazine 14. The nip roller 18 is connected to a pulley fixed to the shaft of the motor 17 by a belt 21, as shown in FIG. A rotary encoder 19 is connected to the shaft of the motor 17.

A cutter 20 is arranged on the exit side of the nip roller 18 of the machine stand 12. An exposure section 22 is arranged downstream of the cutter 20. A conveyance roller 24 and a conveyance roller 26 are arranged on both sides of the exposure section 22 in the conveyance direction. In this exposure section 22, a tip detection sensor 23 for detecting passage of the tip of the photosensitive material 16 is arranged. The tip detection sensor 23 is composed of a light emitting element and a light receiving element arranged to sandwich a conveyance path therebetween. Further, a guide plate 28 is disposed between these conveyance rollers 24 and 26, and an exposure surface glass 30 is disposed at a position facing the guide plate 28 across the conveyance path.

The photosensitive material 16 is held between the guide plate 28 and the exposure glass 30, becomes flat, and passes between both conveyance rollers while its deformation is corrected. On the opposite side of the exposure section 22 from the photosensitive material magazine case 15, there is provided a reversing section 34 that includes a flapper 36 and a loop-shaped conveyance path. It is reversed at , and transported to the exposure section 22 again.

An exposure optical system 38 is provided above the exposure section 22. The exposure optical system 38 includes a light source 40, movable mirrors 42A, 4
2B, a plurality of fixed mirrors 44, a rotating mirror 46, and a lens unit 48. A document placement plate 50 made of glass is provided on the top of the machine stand 12. Further, a slit plate 52 serving as an aperture is arranged on the movable mirror 42B side of the lens unit 48, and a color adjustment filter (CC filter) is arranged inside the lens unit 48. The light source 40, movable mirrors 42A, 42B, and lens unit 48 are movable along the original plate 50. The light source 40 and the moving mirror 42A move at twice the moving speed of the moving mirror 42B and the lens unit 48, so that no optical path difference occurs during movement. As a result of this movement, the original 54 placed on the original placing plate 50 is irradiated with light, and the reflected light is irradiated via the plurality of fixed mirrors 44, thereby exposing the photosensitive material 16 located in the exposure section 22. Scanning exposure is performed.

The rotating mirror 46 is arranged so that it can enter into or leave the optical path of the image light irradiated onto the exposure section 22 via the moving mirrors 42A, 42B and the fixed mirror 44 by rotating. When the rotating mirror 46 enters the optical path, the light reflected by the rotating mirror 46 is incident on the light detection sensor 56 . The light detection sensor 56 is
Exposure conditions are set by measuring the image density of the original 54 and adjusting the color adjustment filter and the aperture slit plate 52 based on the measured value.

A cooling fan 58 is arranged above the photosensitive material magazine case 15. The cooling fan 58 cools the exposure section 22 to a temperature of 40.degree. C. (preferably 35.degree. C. or lower) and prevents the temperature of the document surface from rising.

A flapper 37 is arranged between the conveyance roller 24 and the cutter 20 in the exposure section 22.
An inversion section 60 is arranged below. Also, on the opposite side of the reversing section 60 from the photosensitive material magazine case 15 and at the opposite side of the reversing section 3
A water application section 62 is arranged below 4. The photosensitive material 16 scanned and exposed in the exposure section 22 is transferred to the flapper 37.
is conveyed to the reversing section 60 by switching upward,
After being reversed in the reversing section 60, the conveying roller 29.31.3
3.35, it is transported to the water application section 62. A squeeze roller 68 is disposed on the exit side of the water application section 62 to remove excess water from the water-applied photosensitive material 16. A thermal development transfer section 104 is provided on the exit side of the squeeze roller 68.
is located.

On the other hand, a receiving material magazine case 107 that accommodates a receiving material magazine 106 is disposed below the photosensitive material magazine case 15 so as to be detachable from the machine base 12 . Receiving material magazine 1
06 stores an image receiving material 108 wound into a roll. The width direction dimension of the image receiving material 108 is the same as that of the photosensitive material 1.
6, and the image forming surface is coated with a dye fixing material containing a mordant. The receiving material magazine case 107 holds an image receiving material 108 on the receiving material outlet side of the receiving material magazine 106 and stores the receiving material magazine 106 therein.
A nip roller 110 for pulling out from the container is housed. This nip roller is rotated by a motor (not shown).

On the downstream side of the cutter 112, an image receiving material tip detection sensor 1 is provided.
15 and the cut image-receiving material 108 are transferred to the thermal development transfer section 10.
A plurality of transport rollers 114 are arranged to transport the paper to the paper.

The thermal development transfer section 104 is provided with a heating drum 116 and an endless pressure belt 118, and a bonding roller 120 is arranged on the outer periphery of the heating drum 116 on the water application section 62 side.

Also, between the bonding roller 120 and the squeeze roller 68 of the water application section 62, there is a space between the back side (the side opposite to the image forming side) of the photosensitive material 16 conveyed by the squeeze roller 68.
A guide plate 122 for guiding the photosensitive material 16 to the bonding roller 120 is arranged correspondingly. Guide plate 12
2 has irregularities formed on its surface by embossing, thereby reducing friction between the guide plate 122 and the photosensitive material 16 coated with water.

On the other hand, a blade guide 124 is arranged between the bonding roller 120 and the conveyance roller 114 to guide the image receiving material 108 conveyed by the conveyance roller 114 to the bonding roller 120. The surface of the blade guide 124 is treated with Teflon (trade name) (or a Teflon coating is pasted on it) to improve sliding on the image receiving material 108 and prevent it from being scratched.

The bonding roller 120 is constituted by a so-called crown roller having an outer diameter of about 29 mm at the center in the axial direction, and the outer peripheral surface is coated with silicone rubber.

Further, this bonding roller 120 is pressed against the outer periphery of the heating drum 116 by applying a pressing force of approximately 15 kgf to both ends thereof.

The heating drum 116 is made of a thin aluminum pipe, and in this embodiment is formed to have a wall thickness of 2 mm, an outer diameter of approximately 156 mm, and an effective width in the axial direction of approximately 350 mm. The surface of the heating drum 116 is treated with Teflon, and the inner peripheral surface is coated with black heat-resistant paint.

A pair of halogen lamps 1 are installed inside the heating drum 116.
32A and 132B are arranged. halogen lamp 1
32A and 132B are approximately 800W and 400W, respectively.
W output, and raises the temperature of the surface of the heating drum 116 to approximately 78°C. In this case, two halogen lamps 132A are used at the start of temperature rise.

132B are both lit, and then 80 during normal operation.
Only the 0W halogen lamp 132A is lit.

An endless pressure belt 1 that is pressed against the outer periphery of the heating drum 116
18 is constructed by covering a woven fabric material with rubber. The woven material is sewn from heat-resistant fibers such as aromatic polyamide fibers (for example, Kevlar or Nomex, both registered trademarks of DuPont), and monofilament fibers are used in the width direction of the belt. Improved rigidity in the width direction. Further, the covering rubber is made of carbon-containing silicone rubber and has electrical conductivity.

This endless pressure welding belt 118 has four windings 0-1
34.136.138.1401. The part of the pressure belt 118 between the roller 134 and the roller 140 is pressed against the outer periphery of the heating drum 116.

Rollers 134, 136, and 138 are made of aluminum,
Flange portions for preventing the belt from shifting are formed at both ends in the axial direction. In addition, a pressing force of 2.5 kgf (practical range: 0.5 to 3.0 kgf) is applied to both ends of the roller 136 in the longitudinal direction of the heating drum 116.
This applies a predetermined tension to the endless pressure belt 118.

On the other hand, the winding roller 140 is composed of a rubber roller, and a motor (not shown) serving as a driving source is connected to its rotating shaft. Therefore, the winding is done by the roller 140.
When the roller 140 is rotated by the motor, the endless pressure belt 118 wound around the roller 140 is rotated, and along with this, the heating drum 116 is driven by the frictional force between the endless pressure belt 118 and the heating drum 116. rotated. When the heating drum 116 rotates, the bonding roller 1 disposed in pressure contact with the outer periphery of the heating drum 116
20 similarly rotate together due to frictional forces.

Furthermore, in this case, the squeeze roller 68 and the conveying roller 10
The conveyance speed of the photosensitive material 16 or the image receiving material 108 is set to be about 2% slower due to the transfer speed of the photosensitive material 16 or the image receiving material 108 due to the transfer speed of the photosensitive material 16 or the image receiving material 108 . act. Note that the squeeze roller 68 and the conveyance roller 11
A one-way clutch (not shown) is attached to the drive shaft 4, thereby maintaining a predetermined tension.

Further, the leading end of the image-receiving material 108 is conveyed between the heating drum 116 and the bonding roller 120 in synchronization with the conveyance of the photosensitive material 16, so that the photosensitive material 16 has a predetermined length (approximately 20 mm in this embodiment) in advance. In this state, it is sent between the bonding roller 120 and the heating drum 116 and overlapped.

The photosensitive material 16 and the image-receiving material 108 which have been superimposed by the bonding roller 120 are placed between the heating drum 116 and the endless pressure belt 118 while remaining in the superimposed state. roller 134
and the wound portion is conveyed while being held between the rollers 140). When the photosensitive material 16 is heated during this nip conveyance, it releases a mobile dye, and at the same time, this dye is transferred to the image receiving material 1.
An image is obtained by transferring to the 080 dye fixing layer.

A bending guide roller 142 and a peeling claw 154 are arranged below the heating drum 116 on the downstream side of the endless pressure belt 118 in the material supply direction. Of the photosensitive material 16 and image-receiving material 108 that are sandwiched and conveyed between the endless pressure belt 118 and the heating drum 116, the peeling claw 154 engages only the leading end of the photosensitive material 16 that is overlapped with a predetermined length ahead. The leading end portion is peeled off from the outer periphery of the heating drum 116, and the bending guide roller 142 wraps and guides the peeled photosensitive material 16.

A cutter 180 for cutting the photosensitive material 16, a waste photosensitive material passage sensor 181, and a waste photosensitive material storage box 178 are arranged below the peeling claw 154,
The photosensitive material 16 peeled off from the outer periphery and separated from the image receiving material 108 is cut into pieces by a cutter and accumulated in a waste photosensitive material storage box 178.

A drying fan 182 that blows air to dry the image-receiving material 108 is arranged on the side of the peeling claw 154.

A peeling roller 174 and a peeling pawl 176 are arranged above the peeling pawl 154 and near the heating drum 116 to peel off the image receiving material 108 that is separated from the photosensitive material 16 and moves together with the heating drum 116 from the outer periphery of the heating drum 116. It has become. The peeled image receiving material 108 is transferred to the tray 184.
accumulated on top.

Next, the operation of the image recording apparatus will be explained. The photosensitive material 16 pulled out from the photosensitive material magazine 14 by the nip roller 18 is cut into a predetermined length by the cutter 20, passes through the exposure section 22, and is conveyed toward the flapper 36. The flapper 36 transfers the photosensitive material 16 to the flapper 3.
6 to the transport path located above. The guided photosensitive material 16 is reversed at the reversing section 34 and transferred to the exposure section 2.
2. When the photosensitive material 16 is nipped by the conveying roller 26, the driving of the conveying roller 26 is temporarily stopped, and the photosensitive material 16 is placed in a standby state immediately before the exposure section 22.

On the other hand, while the photosensitive material 16 is being conveyed, a pre-scan of the original 54 is performed. That is, first, as the light source 40 moves, the reflection mirror 46 enters the optical path and changes the image density of the image on the original 54 (in other words, whether the image on the original 54 is like a printed original or a photographic original). ) is measured, and the color adjustment filter and the aperture slit plate 52 are adjusted based on this measured value.

Next, the reflection mirror 46 is removed from the optical path, and the light source 40, movable mirrors 42A, 42B, and lens unit 48 are returned to the home position (image scanning start position).

Here, the driving of the conveying roller 24 and the conveying roller 26 is started again, and the photosensitive material 16 is moved approximately 100 m from the exposure section 22.
It passes at a speed of m/sec. At the same time as the photosensitive material 16 passes through the exposure section 22, the light source 40, the movable mirror 42A,
42B and the lens unit 48 are moved along the original plate 50, and the photosensitive material 16 is scanned and exposed. In this case, since the exposure section 22 is forcibly cooled by the cooling fan 58, exposure failures due to temperature rise will not occur.

When the exposure starts, that is, the driving of the transport rollers 24 and 26 is resumed, the flapper 37 is switched upward, and the exposed photosensitive material 16 is thereby transported to the reversing section 60.

After the photosensitive material 16 is reversed in the reversing section 60, it is transferred to the water application section 6.
Sent to 2.

In the water application section 62, water as an image forming solvent is applied to the photosensitive material 16, and excess water is removed by a squeeze roller 68. The photosensitive material 16 coated with water as an image forming solvent in the water coating section 62 is sent to the thermal development transfer section 104 by a squeeze roller 68 .

On the other hand, the image receiving material 108 is also pulled out from the receiving material magazine 106 by the nip roller 110, and is further pulled out by the cutter 112.
After the photosensitive material 16 is cut into a length shorter than the photosensitive material 16, it is transported by a transport roller 114 to the thermal development transfer section 1.
Sent to 04.

Further, after cutting, the nip by the nip roller 110 is released, and deformation of the leading end (image forming surface) of the image receiving material 108 due to being nipped for a long time is prevented.

Here, the image-receiving material 108 is conveyed to the thermal development transfer section 104 in synchronization with the conveyance of the photosensitive material 16, and the bonding roller 120 is moved with the photosensitive material 16 leading by a predetermined length (approximately 20 mm in this embodiment). and heating drum 11
6 and are superimposed.

In this case, the bonding roller 120 and the water application section 62
A guide plate 70 is disposed between the squeeze roller 68 and the photosensitive material 1 sent from the squeeze roller 68.
6 is reliably guided to the bonding roller 120. Further, a blade guide 124 is arranged between the bonding roller 120 and the conveying roller 114 for the image receiving material 108, so that the image receiving material 108 is also securely transferred to the bonding roller 120.
You will be guided to.

Pasting o-ra 12 prior to image-receiving material 108
After the leading end of the photosensitive material 16 guided to 0 is sandwiched between the bonding roller 120 and the heating drum 116, the speed at which the photosensitive material 16 is pinched and conveyed by the heating drum 116 and the bonding roller 120 (in other words, heated Since the conveyance speed of the photosensitive material 16 by the squeeze roller 68 is set to be approximately 2% slower than the rotational movement speed of the outer circumferential surface of the drum 116, back tension acts on the photosensitive material 16, causing it to loosen. There's nothing wrong with that.

Next, when the leading end of the image-receiving material 108 guided to the bonding roller 120 reaches the pressure contact point between the bonding roller 120 and the heating drum 116, it is sequentially overlapped with the photosensitive material 16. In this case as well, since the conveyance speed of the image receiving material 108 by the conveyance roller 114 is set to be slower than the nip conveyance speed of the image receiving material 108 by the heating drum 116 and the bonding roller 120, back tension is applied to the image receiving material 108. It works without causing any slack.

Therefore, the photosensitive material 16 and the image-receiving material 108 are uniformly overlapped without wrinkles.

Moreover, the tension acting on the photosensitive material 16 and the image receiving material 108 is maintained at a predetermined value by the one-way clutch attached to the drive shafts of the squeeze roller 68 and the conveying roller 114, so that excessive tension may cause the photosensitive material 16 and the image receiving material to Material 108 is not damaged or becomes untransportable.

Furthermore, in this case, since the image-receiving material 108 is smaller in width and length than the photosensitive material 16, all four sides of the photosensitive material 16 protrude from the periphery of the image-receiving material 108. are superimposed on each other.

The photosensitive material 16 and the image-receiving material 108 overlapped by the laminating roller 120 are placed between the heating drum 116 and the endless pressure-welding bell 118 while remaining in the overlapping state. is roller 134
and the wound portion is conveyed while being held between the rollers 140). When the photosensitive material 16 is heated during this nip conveyance, it releases a mobile dye, and at the same time, this dye is transferred to the image receiving material 1.
An image is obtained by transferring to the 080 dye fixing layer.

In this case, the photosensitive material 16 and the image-receiving material 108 are uniformly overlaid without wrinkles, and the peripheral portion of the photosensitive material 160 protrudes from the peripheral portion of the image-receiving material 108 on all four sides and is closely attached to the outer periphery of the heating drum 116. This prevents each material from shifting during transportation (predetermined pressure can be applied, and high-quality images with no image unevenness can be obtained).

Furthermore, since the endless press-contact belt 118 is connected to the motor and is directly and forcibly rotated by the roller 140, the winding can be ensured even if the bending rate of the part is large or it is bent at multiple points. rotates at a predetermined speed. Furthermore, since the heating drum 116 is in pressure contact with the endless pressure belt 118 over a wide range (with low and wide resistance to rotational driving force), the rotational force from the endless pressure belt 118 is reliably transmitted by friction (rotational force (a part of the data is transmitted without being lost). For this reason, the endless pressure welding belt 11
There is no difference in rotational speed between the heating drum 8 and the heating drum 116. Therefore, the photosensitive material 1 being sandwiched and conveyed by the endless pressure belt 118 and the heating drum 116
A shearing force is generated between the image-receiving material 6 and the image-receiving material 108, so that the two materials do not shift, and a good image can be obtained without causing transfer shift.

Furthermore, since the endless pressure contact belt 118 is electrically conductive, generation of static electricity due to friction between the heating drum 116 and the endless pressure contact belt 118 or the photosensitive material 16 or the image receiving material 108 is prevented, and an image obtained on the image receiving material 108 is prevented. There is also no fogging.

Thereafter, when the photosensitive material 16 and the image-receiving material 108 are sandwiched and conveyed and reach the lower part of the heating drum 116, the image-receiving material 108
A peeling claw 154 engages with the leading end of the photosensitive material 16 that is conveyed a predetermined length ahead of the photosensitive material 16 , and peels the leading end of the photosensitive material 16 from the outer periphery of the heating drum 116 . Further, the peeled photosensitive material 16 is wrapped around a bending guide roller 142 and bent downward, cut into pieces by a cutter 180, and accumulated in a waste photosensitive material storage box 178.

On the other hand, the image-receiving material 108, which is separated from the photosensitive material 16 and moves while remaining in close contact with the heating drum 116, is dried by the drying fan 182 while being separated from the heating drum 116 and its outer periphery by a peeling claw. 176 and then sent to a peeling roller 174. Further, here, the tray 184 is peeled off from the outer periphery of the heating drum 116 by the peeling roller 174 and the peeling claw 176.
accumulated on top.

FIG. 3 shows a block diagram of the control system of this embodiment. This control system also controls the exposure optical system described above, but since it is not directly related to the present invention, only the portions related to this embodiment are shown. Row reencoder 1
9 and the tip detection sensor 23 are connected to the microcomputer 1.
90. Microcomputer 190 is connected to motor 17 and cutter 20 via a driver (not shown). Note that the image-receiving material side has a similar configuration and is therefore omitted from illustration.

Next, the control routine of the control system will be explained. Incidentally, since the same applies to the image-receiving material side, only the control routine for the photosensitive material side will be explained in the following control routine.

FIG. 5 shows a part of the main routine that is activated when the copy start switch of the image recording apparatus is turned on. Step 2 when the start switch is turned on
By rotating the motor 17 at 00, the photosensitive material is conveyed in the forward direction, that is, in the direction in which it is pulled out from the photosensitive material magazine case 15. When the conveyance is started, a pulse is output from the row reencoder 19. In the next step 202, it is determined whether or not the leading edge detection sensor 23 has detected the leading edge of the photosensitive material. When it is determined that the leading edge has been detected, the leading edge detection flag F is set in step 204, and in step 206, the leading edge detection flag F is set. The value of the size pulse PA is calculated from the pulse number Po corresponding to the length corresponding to the photosensitive material transport direction of the copy size set by the copy size setting switch and the cutter from the tip of the photosensitive material stored in the photosensitive material magazine case 15. It is set to the sum of the number of pulses Pf corresponding to the transport distance to the placement position.

FIG. 1 shows an interrupt routine that is interrupted by the rising edge of a pulse output from a low reencoder, and in step 210 the number of pulses P is incremented. In the next step 212, it is determined whether or not the photosensitive material is being conveyed in the forward direction, and if it is being conveyed in the forward direction, it is determined in step 214 whether or not the leading edge detection flag F is set. If flag F is reset, the process returns to the main routine; if flag F is set, the process returns to step 216.
At , it is determined whether the number of pulses P has become equal to or larger than the size pulse FA. When P<PA, the process directly returns to the main routine, and when P≧PA, the conveyance of the photosensitive material is stopped at step 218, and at the same time, the process returns to step 22.
0, a cut signal is output and the cutter 20 cuts the photosensitive material. In the next step 222, the pulse number P is set to a pulse number Pl corresponding to the distance l from the cutter 20 to the tip of the photosensitive material rewound and stored in the magazine case. This is because in this embodiment, the pulses are counted using the tip position of the rewound photosensitive material as the reference position (P=0), so immediately after cutting with the cutter, the tip of the photosensitive material is at a distance corresponding to the number of pulses Pβ. This is because it is equivalent to being transported.

In the next step 214, the leading edge detection flag F is reset, and in step 226, it is determined whether or not the photosensitive material has been cut by the number of copies set using the numeric keypad for setting the number of copies. When the number of cuts is equal to the set number of copies, the motor 17 is controlled in step 228 to transport the photosensitive material in the reverse direction, that is, in the rewinding direction.

Even when the photosensitive material is being conveyed in the unwinding direction, a pulse is output from the low rewind encoder 19, and the routine shown in FIG. 1 is executed by an interrupt, so step 2
The number of pulses is counted at 10. Next step 212
Since it is determined that the object is being transported in the opposite direction, the process proceeds to step 230, where it is determined whether the number of pulses P has exceeded a predetermined value 2P1. Immediately after cutting the photosensitive material, P
=PA, the number of pulses when the photosensitive material is rewound by a distance l from the cut position is 2Pj2. Therefore, 2Pf is set as the predetermined value. P≧2
At Pf, the leading end of the photosensitive material is housed in the photosensitive material magazine case, so the conveyance of the photosensitive material is stopped in step 232, and the count value P is set to 0 in step 234. On the other hand, if P<2PA in step 230, the process directly returns to the main routine.

As a result, when the photosensitive material is cut a number of times equal to the set number of copies, the photosensitive material is rewound by the distance β and the leading end of the photosensitive material is stored in the photosensitive material magazine case. Therefore, after one or more copies have been made, the photosensitive material is stored in the photosensitive material magazine case, making it easy to pull out the magazine case.

Figure 4 shows interrupts that occur when the stop switch that stops the operation of the image recording device is turned on, when a jam occurs, when the end of the photosensitive material is detected, when the door of the image recording device is opened, etc. In step 240, it is determined whether the photosensitive material is being transported in the forward direction. When the photosensitive material is being conveyed in the reverse direction, the photosensitive material is being rewound, so the process returns to the main routine. When it is being conveyed in the forward direction, the conveyance is stopped in step 242, and the number of pulses P is determined in step 244. Predetermined distance (
For example, it is determined whether the number of pulses corresponding to 70 mm is equal to or greater than P70. When p<P2O, the unwinding length is short and rewinding is possible, so step 2
After setting the number of pulses to 2Pβ-P in step 54, step 2
At 52, the motor 17 is controlled so that the photosensitive material is rewound. When P<P2O, since the distance corresponding to the number of pulses P has already been carried out, it is sufficient to rewind the distance corresponding to the number of pulses P. By setting the number of pulses to 2Pβ-P and rewinding the distance corresponding to the number of pulses, P=2Pj with the tip stored in the photosensitive material magazine case! Therefore, the process proceeds from step 230 in FIG. 1 to step 232, where rewinding is stopped.

On the other hand, when P≧P70, the length of the photosensitive material is long, so in step 246 a cut signal is output to cut the photosensitive material, and in step 248 the reference pulse number Pβ is set as the pulse number P, and then in step 250 At step 252, the leading edge detection flag F is reset, and at step 252, the photosensitive material is transported in the opposite direction. As a result, the photosensitive material is rewound by a distance l in the same manner as described above, and the leading end of the photosensitive material is stored in the photosensitive material magazine case.

As a result, when the stop switch is turned on or when a jam occurs, the photosensitive material is stored in the case, so you can pull out the photosensitive material magazine case to check the location of the jam or remove the photosensitive material magazine. Replacement can be done easily.

Note that although the above description describes storage of the leading edge of a photosensitive material, it can also be similarly applied to storage of an image-receiving material.Although the above description describes an image recording device using thermal development transfer, it is also possible to store an image wound in a roll. It can also be applied to devices that use recording materials, such as facsimile machines.

[Brief explanation of drawings]

FIG. 1 is a flowchart showing an interrupt routine caused by a pulse rising edge according to an embodiment of the present invention, FIG. 2 is a schematic diagram of an image recording apparatus to which the present invention is applicable, and FIG. 3 is a flowchart showing an example of the present invention applied to a photosensitive material supply section. FIG. 4 is a flowchart showing an interrupt routine interrupted by turning on the stop switch, etc., and FIG. 5 is a flowchart showing a part of the main routine of this embodiment. 15...Sensitive material magazine case, 23...Tip detection sensor, 107...Receiving material magazine case.

Claims (1)

[Claims] (1) A case that is detachable from the main body of the image recording device and that stores the wound image recording material; a cutter that is disposed in the image recording apparatus body and cuts the image recording material carried out from the case; and a cutter that controls the conveyance means so that the image recording material is carried out of the case. and a control means for controlling the conveying means so that the image recording material is rewound until the leading end of the image recording material is stored in a case after the image recording material is cut.