JPH02234159A - Image forming device - Google Patents

Abstract

PURPOSE:To form an image without unevenness (transferring deviation) by making the rotating speed of a drum and an endless pressurizing belt which is in pressure contact with a part of the periphery of this drum and crimping and carrying two pieces of image recording materials wound up on the periphery of the drum in pressurized contact. CONSTITUTION:The endless pressurizing belt 118 which is in pressurized contact with a part of the periphery of the drum 116, is made to be in direct contact with a friction member 216 in a part of the both end parts in the width direction of the two pieces of image recording materials 16 and 108 wound up on the periphery of the drum 116, and because of this the friction resistance between the drum 116 and the endless pressurizing belt 118 is increased, and the rotating energy of a driving side can be surely transmitted to a driven side without losing a part of it. Therefore, difference in rotating speed between the endless pressurizing belt 118 and a heating drum 116 do not generate and both materials, the photosensitive material 16 and an image receiving material 108, etc., crimped and carried by the endless pressure contacting belt 118 and the heating drum 116 are not deviated. Thus, unevenness (transferring deviation) is not generated and an image of good quality can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Fields] The present invention records images by wrapping an image recording material tightly around the outer periphery of the drum as the drum rotates, and conveying the material by sandwiching it between an endless pressure belt. The present invention relates to an image recording device that performs processing.

[Prior Art] An image recording apparatus is known that performs image recording processing by wrapping an image recording material around the outer periphery of a drum.

In this type of image recording apparatus, for example, a photosensitive material and an image receiving material are used as image recording materials, and the drum is a heating drum. A portion of the outer periphery of an endless pressure belt wound around a plurality of winding rollers is pressed onto the outer periphery of the heating drum.

The heating drum is connected to a drive source such as a moke so that it rotates, and the rotation of the heating drum is transmitted by the frictional force between it and the endless pressure belt, causing the endless pressure belt to rotate together with the heating drum. It looks like this.

The photosensitive material on which the image has been exposed is coated with water as an image-forming solvent and then superimposed on the image-receiving material, and in this state is tightly wound around the outer periphery of the heating drum. Further, both materials are conveyed while being held between a heating drum and an endless pressure belt, so that the photosensitive material is developed and the image is transferred to the image receiving material.

[Problems to be Solved by the Invention] By the way, since the endless pressure belt that is pressed against the outer periphery of the heating drum is wound around a plurality of winding rollers having a relatively small diameter (that is, the winding portion of the endless pressure belt has a large curvature rate and is bent at multiple points),
Large resistance to rotational driving force. As a result, the rotational force due to friction between the heating drum and the heating drum is not sufficiently transmitted (part of the rotational force is lost), and a difference in rotational speed may occur between the endless pressure welding belt and the heating drum. Ta.

Therefore, in this case, a shearing force is generated between the photosensitive material and the image-receiving material that are sandwiched and conveyed by the endless pressure belt and the heating drum, causing the two materials to shift, resulting in image unevenness (transfer misalignment). There was a problem.

In this case, it is possible to connect both the heating drum and the endless pressure welding belt to a drive source and rotate them, but if a single drive source is connected to each part by gears, chains, etc., the dimensions of the connected parts It is extremely difficult to match the rotational speeds of the heating drum and the endless pressure belt due to errors, etc.
In addition, when different drive sources are directly connected to each part, it is necessary to make the rotation speeds of each drive source (motor) the same, and in this case, the rotation speeds of the heating drum and the endless pressure belt must also be made to match. is extremely difficult.

In consideration of the above facts, the present invention equalizes the rotational speed of the drum and the endless pressure belt that presses against a part of the outer periphery of the drum. It is an object of the present invention to provide an image recording apparatus that can form an image without unevenness (transfer misalignment) by nipping and conveying a recording material while keeping it in close contact with the recording material.

[Means for Solving the Problems] An image recording apparatus according to the present invention includes a drum and an endless pressure belt that presses against a part of the outer periphery of the drum. An image recording device that performs image recording processing by tightly wrapping the image recording material around the outer periphery of the drum and conveying it between the endless pressure belt and the image recording material, the image recording material being wound around the outer periphery of the drum, from both ends in the width direction. The present invention is characterized in that friction members that come into contact with the endless pressure belt are attached to the outer periphery of both ends in the axial direction of the detached drum.

[Function] In the image recording apparatus having the above configuration, the endless pressure belt that presses against a part of the outer circumference of the drum directly contacts the friction member at a portion away from both ends in the width direction of the image recording material wound around the outer circumference of the drum. .

Therefore, the frictional resistance between the drum and the endless press-contact belt increases, and a part of the rotational force on the driving side is reliably transmitted to the driven side without being lost between the drum and the endless press-contact belt. Therefore, there is no difference in rotational speed between the endless pressure belt and the heating drum.

Therefore, shearing force is not generated between the photosensitive material and the image receiving material that are sandwiched and conveyed by the endless pressure belt and the heating drum, and the two materials do not shift, so image unevenness (transfer misalignment) does not occur. You can get a good image.

[Example] FIG. 3 shows a schematic configuration diagram of an image recording apparatus 10 according to the present invention.

A photosensitive material magazine 14 is arranged on the machine stand 12 of the image recording apparatus 10, and a photosensitive material 16 is wound up into a roll and stored therein.

The photosensitive material magazine 14 can be pulled out toward the front side of the machine stand 12 (the front side in the third drawing, that is, the width direction of the wound photosensitive material 16), and is pulled out when replacing the magazine. Further, a light shielding member (not shown) is placed in the drawer portion of the photosensitive material magazine 14, so that when the photosensitive material magazine 14 is stored in the machine base 12, external light does not enter into the machine base 12. , the stored photosensitive material 16 is prevented from being inadvertently exposed to light.

The photosensitive material 16 has a photosensitive silver halide, a binder, a dye-donating substance, and a reducing agent on a support,
It is wound up with its light-sensitive (exposed) side facing down the device.

A nip roller 18 and a guillotine-type cutter 20 are arranged near the photosensitive material outlet of the photosensitive material magazine 14, and cut the photosensitive material 16 after pulling it out to a predetermined length from the photosensitive material magazine 14. Also,
After the cutter 20 is operated, the nip roller 18 reverses,
The nib roller 18 is adapted to rewind the photosensitive material 16 to such an extent that its leading end is slightly nipped.

On the other hand, the photosensitive material 16 cut into a predetermined length is transported to the exposure section 2.
2.

A conveyance roller 24 and a conveyance roller 26 are arranged in the exposure section 22, and the space between these conveyance rollers serves as an exposure section (exposure point) through which the photosensitive material 16 passes. Further, a guide plate 28 is disposed between these conveyance rollers, and an exposure surface glass 30 is disposed above the conveyance path of the photosensitive material 16, so that the photosensitive material 16 becomes flat (corrects deformation). (while being exposed) passes between both conveyance rollers (exposure section).

The guide plate 28 and the exposure glass 30 are removable, so that if the transported photosensitive material 16 becomes clogged (so-called jam), it can be easily cleared.

On the side of the exposure section 22 (the side opposite to the photosensitive material magazine 14),
A branch section 32 and an inversion section 34 are arranged.

A flapper 36 is rotatably arranged at the branching portion 32. This flapper 36 is configured to enter into and block the transport path of the photosensitive material 16 which is located on the lower side of the apparatus among the transport paths of the photosensitive material 16, which are branched into two, thereby blocking the photosensitive material 16 after passing through the exposure section 22. The material 16 is guided to a conveyance path located above the flapper 36 of the apparatus.

The guided photosensitive material 16 is reversed at the reversing section 34 and then reaches the branching section 32 (flapper 36) again. In this case, the flapper 36 is removed from the conveyance path of the photosensitive material 16, and the photosensitive material 16 after being reversed is conveyed to the exposure section 22 (between the conveyance rollers 24 and 26) again. It has become. Here, the conveying speed of the photosensitive material 16 by the conveying rollers 24 and 26 (passing speed of the exposure section) is 100 mm/s e
c.

An exposure device 38 is provided directly above the exposure section 22.

The exposure device 38 includes a light source 40 and movable mirrors 42A, 42.
B. A plurality of fixed mirrors 44, a reflective mirror 46, and a lens unit 48 are arranged, and a glass original placing plate 50 is provided above the machine stand 12 above these parts.

The light source 40 is a cylindrical halogen lamp (power supply voltage 80V).
, 380W), and in this embodiment, the illuminance on the document surface is approximately 5xlQ'Lx. Also,
The light intensity distribution of this light source 40 (halogen lamp) is set to be slightly smaller at both ends in the axial direction than at the center. This is to make the density distribution of the image uniform in accordance with the temperature distribution of the thermal development transfer section 104, which will be described later.

The lens unit 48 is composed of a plurality of lens groups (for example, six lenses), and further includes a color adjustment filter (CC filter) not shown. Moreover, the front side of the lens unit 48 (moving mirror 42A
, 42B side) at a predetermined interval (in this example, 1
A diaphragm slit plate 52 is arranged at a distance of 00 mm).

The light source 40, movable mirrors 42A, 42B, and lens unit 48 are movable along the document placement plate 50, and irradiate light onto the document 54 placed on the document placement plate 50 and reflect the light. The image light (image light) is scanned and exposed onto the photosensitive material 16 located in the exposure section 22 via a plurality of fixed mirrors 44. Note that in this case, the moving speed of the moving mirror 42B is the same as that of the light source 40 and the moving mirror 42A.
The movement speed is 1/2.

The reflecting mirror 46 is arranged so as to be able to enter or leave the optical path of the image light irradiated onto the exposure section 22 via the above-mentioned movable mirror 42A142B and fixed mirrors 7-44. That is, normally, the light that enters the optical path of the image light and is irradiated via the movable mirror 42A 142B or the fixed mirror 44 is reflected in a substantially perpendicular direction. When scanning and exposing the photosensitive material 16 located in the exposure section 22, the light beam is removed from the optical path so that an image can be exposed.

When the reflecting mirror 46 enters the optical path of the image light, the reflected light is made to enter the light detection sensor 56.

The photodetection sensor 56 includes a total of six photosensitive heads capable of detecting two types of wavelengths, blue, green, and red, and is further connected to a control device (not shown). This light detection sensor 56 measures the image density of the image on the original 54, and based on this measurement value, the exposure conditions of the aforementioned color adjustment filter (CC filter) and the aperture slit plate 52 are set. .

The exposure section 22 having such a structure is constructed as one unit as a whole and is attached to the machine base 12 so that it can be opened by means of a hinge (not shown) (a so-called clamshell type). This allows for easy inspection and so-called jam handling in the event of a paper jam.

A cooling fan 58 is arranged on the side of the exposure section 22 (on the opposite side from the photodetection sensor 56), and the temperature of the exposure section 22 is kept at 4.
It is cooled to 0° C. (preferably 35° C. or lower) and prevents the document surface temperature from increasing.

The side of the conveyance roller 24 of the exposure section 22 (the side of the photosensitive material magazine 14
A flapper 37 is arranged on the side), and further, an inversion part 60 is arranged below the flapper 37.

The flapper 37 allows the photosensitive material 16 to pass through the exposure section 22.
is guided to the reversing section 60.

A water application section 62 is arranged below the reversing section 34 on the side of the reversing section 60 (on the side opposite to the photosensitive material magazine 14). The photosensitive material 16 on which the image has been exposed in the exposure section 22 is conveyed to the reversing section 60 by switching the flapper 37 upward, and after being reversed at the reversing section 60, the photosensitive material 16 is transferred to the conveying roller 29.
, 31, 33, and 35, the water is sent to the water application section 62.

As shown in detail in FIG. 4, a coating tank 64 is arranged in the water coating section 62. Further, a pair of supply rollers 66 are disposed at the upstream end of the coating tank 64 in the conveying direction of the photosensitive material 16.
Further, a pair of squeeze rollers 68 are arranged at the downstream end of the photosensitive material 16 in the conveying direction.

In this embodiment, both the supply roller 66 and the squeeze roller 68 are made of silicone rubber rollers with an outer diameter of 20 mm, and the hardness of the rubber is 6.
0±5, and the squeeze roller 68 is 55±5. Further, a pressing force of 1 kg is applied to each roller at both ends in the longitudinal direction.

On the other hand, a guide plate 70 is attached above the coating tank 64 so as to face the coating tank 64, and the space between the guide plate 70 and the coating tank 64 is a passage for the photosensitive material 16. The guide plate 70 is pivotally supported by a hinge 72, which allows the passage of the photosensitive material 16 to be opened and closed, and also facilitates handling of paper jams, tank cleaning, etc.

Further, a sensitive material sensor 74 is arranged near the supply roller 66 on the upstream side in the conveying direction of the photosensitive material 16, and the reversing section 60
It is possible to detect the photosensitive material 16 conveyed from. Therefore, when the sensitive material sensor 74 detects the photosensitive material 16 conveyed from the reversing section 60, the supply roller 66 and the squeeze roller 68 are driven, and thereby the photosensitive material 16 is transferred between the guide plate 70 and the coating tank 64. The paper is fed in for 5 minutes, and is further nipped and conveyed by squeeze rollers 68.

Note that here, the supply roller 66 and the squeeze roller 68
The transport speed of the photosensitive material 16 (passing speed between the guide plate 70 and the coating tank 64) is 29 mm/s e
c. That is, in the exposure section 22, the photosensitive material 16 is transported at 100 mm/s eC,
When the photosensitive material sensor 74 detects the photosensitive material 16, the conveying speed of the conveying rollers 29, 31, 33, and 35 is also reduced to 20 mm/sec by clutch operation, and the conveying speed of the conveying rollers 29, 31, 33, and 35 is reduced to 20 mm/sec.
It is now sent to 2.

As shown in FIGS. 5(A) and 5(B), a plurality of rows of ribs 76 are provided on the surfaces of the coating tank 64 and the guide plate 70 through which the photosensitive material 16 passes, and are inclined with respect to the conveying direction of the photosensitive material 16. This reduces the frictional resistance when the photosensitive material 16 passes between the guide plate 70 and the coating tank 64, and prevents the photosensitive material 16 from being scratched at certain positions. .

In this coating tank 64, a supply vibrator 78 is provided which extends approximately at the center of the passage of the photosensitive material 16 and below the squeeze roller 68.
The bifurcated tip portions 78A and 78B are connected to each other. A pump 80 and a filter 82 are arranged in the middle of the supply pipe 78, and the other end of the supply pipe 78 is supported by an open lid 84 and located in a replenishment tank 86.

Further, the replenishment tank 86 is filled with water as an image forming solvent and also contains an antifoaming agent. Therefore, by driving the pump 80, the replenishment tank 86
The coating tank 64 can be refilled with water from inside the coating tank 64.

Therefore, when the coating tank 64 is filled with water, the water is applied to the photosensitive material 16 fed between the guide plate 70 and the coating tank 64 by the supply roller 66, and is further held between the squeeze rollers 68. Excess water is removed by being transported.

In this case, the water coating length of the photosensitive material 16 between the guide plate 70 and the coating tank 64 (the length that the photosensitive material 16 passes through water) is 70 mm, and the water immersion time is 70 mm. It is 3.5 seconds. Further, the photosensitive material 16 after the water coating process (that is, after passing through the squeeze roller 68) has a coating of 15±Igr/m' (maximum 17gr/m).
'Below) water is to be applied.

An open lid 84 supporting the supply pipe 78 is attached to the machine base 12 by a hinge 88, so that the inside of the replenishment tank 86 can be opened. Further, the tip of the supply pipe 78 located inside the replenishment tank 86 is formed to have a narrow diameter to prevent liquid from running out when the open lid 84 is opened.

A water tank section 90 is arranged above the replenishment tank 86, and a filter 92 is further arranged in the water tank section 90. This water tank section 90 has an overflow pipe 9 whose one end is connected to the application tank 64 on the side of the squeeze roller 68.
The other ends of 4 are connected. For this reason, the coating tank 64
When the amount of water filled (refilled) exceeds the specified amount,
This water can be automatically returned to the replenishment tank 86 (water tank section 90) via an overflow pipe 94.

Furthermore, one end of a discharge pipe 96 is connected to the intermediate portion of the supply pipe 78 (between the coating tank 64 and the pump 80), and the other end of the discharge pipe 96 is connected to the water tank portion 90. A solenoid valve 98 is arranged in the section. This solenoid valve 98 is normally in a closed state, but
By being in the open state, water in the coating tank 64 is refilled through the discharge vibrator 96 into the tank 86 (water tank section 90).
It is now possible to discharge to.

A bypass vibe 100 is attached to the water tank 90 to prevent water from overflowing from the water tank 90 when the filter 92 becomes clogged.

A heater 102 is attached to the outer periphery of the bottom of the coating tank 64, and the water filled in the coating tank 64 is
The temperature is raised to 2°C. For this reason, the amount of water permeating (infiltrating) the emulsion surface of the photosensitive material 16 passing through the coating tank 64 increases, making it easier to reach saturation.

A thermal development transfer section 104 is disposed on the side of the water application section 62, and the water application section 62 is placed next to the water application section 62 (after passing through the squeeze roller 68).
A photosensitive material 16 is fed.

On the other hand, a receiving material magazine IU6 is arranged on the machine stand 12 directly below the photosensitive material magazine 14, and the image receiving material 108 is wound up into a roll and stored therein.

The receiving material magazine 106 can also be pulled out to the front side of the machine stand 12 (toward the front side of the paper in the third drawing, that is, in the width direction of the wound image receiving material 1080).

The widthwise dimension of the image-receiving material 108 is smaller than that of the photosensitive material 1.6, and the image-forming surface is coated with a dye-fixing material having a mordant.

Near the receiving material outlet of this receiving material magazine 106,
Nitsubro roller 110 and guillotine type cutter 1
12 is arranged to cut the image receiving material 108 drawn out from the receiving material magazine 106 into a length shorter than the photosensitive material 16. Further, after the cutter 112 is operated, the nipping of the nipping roller 110 is released, and the leading end of the image receiving material 108 is nipped by the nipping roller 110 for a long time so that the surface (image forming surface) is not deformed.

The image receiving material 108 cut into a predetermined length is conveyed to the thermal development transfer section 104 by a plurality of conveyance rollers 114.

The thermal development transfer section 104 is composed of a heating drum 116 and an endless pressure belt 118, and furthermore, a bonding roller 12 as a winding means is arranged on the outer periphery of the heating drum 116 on the water application section 62 side. .

A guide plate 122 is disposed between the bonding roller 120 and the squeeze roller 68 of the water application section 62 above the conveyance path of the photosensitive material l6.
The photosensitive material 16 sent from the photosensitive material 16 is guided to the bonding roller 120 in correspondence with the back side (the side opposite to the image forming surface). The guide plate 122 has irregularities formed on its surface by embossing, thereby reducing friction with the photosensitive material 16 after being coated with water.

On the other hand, a blade guide 124 is disposed between the bonding roller 120 and the conveyance roller 114 for the image-receiving material 108, and the image-receiving material 108 is conveyed from the conveyance roller 114.
8, it is guided to the bonding roller 120. The surface of the blade guide 1240 is treated with Teflon (or a Teflon tape is attached) to improve the sliding of the image receiving material 108 and prevent it from being scratched.

Here, the squeeze roller 120 is moved so that the relative angle between the photosensitive material 16 and the image receiving material 108 fed to the bonding roller 120 is 30 degrees or more (preferably 45 degrees or more).
8, the conveyance roller 114, and other parts are set.

In addition, with respect to the conveyance speed of the photosensitive material 16 and image receiving material 108 by the bonding roller 120,
The conveyance speed of photosensitive material 16 and image receiving material 108 is set to be about 2% slower.
Back tension is applied to the sheet when it is fed to the bonding roller 120. Note that a one-way clutch (not shown) is attached to the drive shafts of the squeeze roller 68 and the conveyance roller 114 to maintain a predetermined tension.

The bonding roller 120 has an outer diameter of 2 at the center in the axial direction.
A 9mm so-called crown roller with a wall thickness of 3mm on the outer circumferential surface.
It is coated with silicone rubber, and the hardness of the rubber is approximately 80. Moreover, this bonding roller 120 has a weight of 15 kg at both ends in the longitudinal direction.
is applied to the outer periphery of the heating drum 116.

A felt wiping cloth 121 is placed above the bonding roller 120. The wiping cloth 121 is attached to the mounting plate 1
23 and is fixed, and is always in contact with the surface of the bonding roller 120. Therefore, as the bonding roller 120 rotates, water adhering to the surface of the bonding roller 120 can be removed.

The heating drum 116 is made of a thin-walled aluminum pipe, and in this embodiment has a wall thickness of 2 mm and an outer diameter of 1 mm.
It is formed to have a diameter of 56 mm and an effective width in the axial direction of 350 mm. The surface of the heating drum 116 is coated with Teflon, and the inner peripheral surface is coated with heat-resistant black paint.

As shown in FIG. 1, on a part of the outer circumference of the heating drum 116,
A plurality of substantially rectangular lateral grooves 126 whose longitudinal direction is the axial direction of the heating drum 116 are formed on the same line, so as to partially release the pressure contact between the outer periphery of the heating drum 116 and the bonding roller 120. ing. That is, as a result of the release of the pressure contact by the horizontal grooves 126, the water that remains in a bead shape between the bonding roller 120 and the heating drum 116 adheres to the surface of the heating drum 116 or the bonding roller 120 due to its surface tension. It is supposed to move.

Further, on the downstream side of the lateral groove 126 in the rotational direction of the heating drum, a plurality of substantially rectangular vertical grooves 128 whose longitudinal direction is the circumferential direction of the heating drum 116 (that is, in a direction orthogonal to the lateral groove 126) are formed. Peeling claws 1, which will be described later, are formed at intervals.
Corresponding to 54, it is used for peeling off the photosensitive material 16. In this embodiment, the vertical groove 128 has a width dimension of 5 mm,
The longitudinal dimension is 26 mm and the depth dimension is Q, 2 m.
It is formed in m.

The photosensitive material 16 to be conveyed to the thermal development transfer section 104 is fed between the bonding roller 120 and the heating drum 116 so that its leading edge is located at the center in the longitudinal direction of the vertical groove 128. Reference numeral 108 synchronizes with the conveyance of the photosensitive material 16 so that the photosensitive material 16 is fed between the bonding roller 120 and the heating drum 116 with a predetermined length (20 mm in this embodiment) in advance and is overlapped. It has become. In this case, since the image-receiving material 108 is smaller in width and length than the photosensitive material 16, as shown in FIG. They are designed to be stacked one on top of the other while protruding from the periphery.

Further, as shown in FIG. 1, on the outer periphery of both ends of the heating drum 116 in the axial direction, the photosensitive material 16 (and image receiving material 108) wound around the outer periphery of the heating drum 116 is provided at positions apart from both ends in the width direction. Silicone rubber 216 is attached as a friction member.

The silicone rubber 216 protrudes from the outer circumferential surface of the heating drum 116 by a distance of 0 to 1, Q mm, and is in direct contact with an endless pressure belt 118, which will be described later. Note that the surface of this silicone rubber 216 (the endless pressure welding belt 11
8) is preferably provided with unevenness.

Furthermore, a cam 130 is fixed to the side wall of the heating drum 116. This cam 130 is capable of engaging with an operating arm 146, which will be described later, and rotates the operating arm 146 as the heating drum 116 rotates.

Inside the heating drum 116, a pair of halogen lamps 1 are installed.
32A and 132B are arranged. halogen lamp 1
32A1132B has an output of 800W and 400W, respectively, and heats the surface of the heating drum 116 to approximately 78°C.
The temperature can be raised to . In this case, both halogen lamps 132A and 132B are used at the start of temperature rise, and only the 800W halogen lamp 132A is used during normal operation thereafter.

An endless pressure belt 11 that presses against the outer periphery of the heating drum 116
Reference numeral 8 has a structure in which a woven cloth material is covered with rubber, and in this embodiment, the width direction dimension is formed to be 34 Qmm. The woven fabric material is aromatic polyamide fiber P4 (for example, Kevlar or Nomex: both are du Pont
The belt is sewn with heat-resistant fibers such as the company's registered trademark (registered trademark of
Fibers are used to improve the rigidity of the belt in the width direction.

Further, the covering rubber is silicone rubber containing carbon and has electrical conductivity.

This endless pressure belt 118 is wrapped around four rollers 1
It is wrapped around 34, 136, 138, 140,
The endless outer side between the winding roller 134 and the winding roller 140 is pressed against the outer periphery of the heating drum 116.

In this case, as shown in FIG. 2, the endless pressure belt 118 sandwiches the photosensitive material 16 and the image receiving material 108 with the heating drum 116, and both ends of the belt in the width direction are made of silicone rubber attached to the outer periphery of the heating drum 116. 216
are in direct contact with. Therefore, the frictional resistance between the endless pressure belt 118 and the silicone rubber 216 is large.

The winding rollers 134, 136, and 138 are made of aluminum, and flange portions for preventing the belt from shifting are formed at both ends in the axial direction.

In addition, the winding roller 136 has a weight of 2.5 kg at both ends in the longitudinal direction (the practical range is 0.5 to 3 kg).
．． A pressing force of 0 kg) is applied in a direction away from the heating drum 116, thereby maintaining the endless pressure belt 118 at a predetermined tension.

On the other hand, the winding roller 140 is a rubber roller, and a gear 192 is fixed to its rotating shaft 190 as shown in FIG. This gear 192 meshes with a gear 196 fixed to a motor 194 as a driving source. Therefore, the driving force of the motor 194 is directly transmitted via the gears 192 and 196 to rotate the winding roller 140.

When the winding roller 140 is rotated by the motor 194, the endless pressure belt 118 wound around the winding roller 140 is rotated, and accordingly, the rotational force of the endless pressure belt 118 is transferred to the heating drum 116. The frictional force between them is transmitted to the heating drum 116, and the heating drum 116 is driven to rotate.

In this case, the heating drum 116 has low resistance to rotational driving force, and the endless pressure belt 118 is in direct contact with the silicone rubber 216 attached to the heating drum 116, so the rotation from the endless pressure belt 118 due to frictional force Power is reliably transmitted (without loss of part of the rotational force), and therefore no difference in rotational speed occurs between the endless pressure belt 118 and the heating drum 116. .

Furthermore, when the heating drum 116 rotates, a bonding roller 120 disposed in pressure contact with the outer periphery of the heating drum 116 similarly rotates together due to frictional force.

The photosensitive material 16 and the image-receiving material 108 which have been superimposed by the bonding roller 120 are passed around approximately 1/2 of the circumference of the heating drum 116 (around the wrapping roller 134
and the winding roller 1400). When the photosensitive material 16 is heated during this nipping and conveyance, it releases a mobile dye, and at the same time, this dye is transferred to the dye fixed layer of the image-receiving material 108 to obtain an image.

In this case, 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 11B, the photosensitive material 16, or the image receiving material 108 is prevented.

As shown in FIGS. 9 and 10, a bending guide roller 142 is disposed below the heating drum 116 on the downstream side of the endless pressure belt 118 in the material supply direction. Bending guide roller 1
42 has a shaft 144 connected to a driving source (not shown), and is rotated by this driving force. Further, the bending guide roller 142 is in pressure contact with the outer periphery of the heating drum 116, so that the photosensitive material 16 or the image receiving material 108 conveyed by the heating drum 116 and the endless pressure belt 118 is further nipped and conveyed. .

An operating arm 146 is fixed to a shaft 148 at the lower part of the heating drum 116 on the downstream side of the bending guide roller 142 in the material supply direction, and the shaft 148 is further rotatably supported.

As shown in detail in FIG. 8, an engagement roller 150 is rotatably attached to the tip of the actuating arm 146.
It can engage with a cam 130 fixed to the side wall of the heating drum 116. The shaft 148 also has a torsion spring 1.
52 are connected, so that the pongee 148, that is, the actuating arm 146 is always urged in the direction in which the engaging roller 150 approaches the bending guide roller 142 (in the eight direction of the arrow in FIG. 8).

In other words, when the heating drum 116 rotates and the cam 130 reaches a predetermined position, the engagement roller 150 comes into contact with the cam 130 and presses the operating arm 146, so that the heating drum 1
As the heating drum 116 rotates, it rotates in the direction of arrow B in FIG. It moves and returns to its original position.

A peeling claw 154 is rotatably supported by a shaft 156 at the lower part of the heating drum 116 on the downstream side of the bending guide roller 142 in the material supply direction where the shaft 148 of the operating arm 146 and the heating drum 116 are connected.

A peeling part 158 having a wedge-shaped cross section is formed at the upper end of the peeling claw 154 (on the opposite side from the shaft 156), and a concave guide part 160 that curves gently downward is formed from the peeling part 158. ing.

The peeling portion 158 corresponds to the vertical groove 128 formed on the outer periphery of the heating drum 116, and can be fitted into or removed from the vertical groove 128. In this embodiment, the thickness dimension (claw width dimension) of the peeling claw 154 (peeling portion 158) is set to 3 mm.

On the other hand, a tension spring 162 is connected to the downstream end of the peeling claw 154. Therefore, the peeling claw 154 is always urged in the direction in which the peeling portion 158 enters the vertical groove 128 (in the direction of arrow C in FIG. 8). Note that in this case, the biasing force of the tension spring 162 is weaker than the biasing force of the torsion spring 152 that biases the actuation arm 146.

A guide hole 164 is formed in the center of the peeling claw 154, into which a pin 166 is movably fitted.

The pin 166 is connected to the shaft 1 that pivotally supports the aforementioned operating arm 146.
48 by an arm 168,
It is adapted to move around an axis 148 as the operating arm rotates on the 14th.

This pin 166 is normally operated by a biasing force of a torsion spring 152 connected to the actuating arm 146.
54 at the front end (separation part 158 side) of the guide hole 164, thereby holding the peeling claw 154 so that the peeling part 158 is separated from the outer periphery of the heating drum 116. When the actuating arm 146 is pressed by the cam 130 and rotates in the direction of arrow B in FIG. 8 against the urging force of the torsion spring 152, the rear end of the guide hole 164 (in the direction of the axis ), thereby gradually releasing the holding of the peeling claw 154 and pulling the peeling claw 154 to the peeling portion 158 by the urging force of the tension spring 162.
is moved in the direction of entering into the vertical groove 128 on the outer periphery of the heating drum 116 (in the direction of arrow C in FIG. 8).

In this case, the cam 130 is rotated so that when the heating drum 116 rotates to a predetermined position and the vertical groove 128 reaches the peeling position, the peeling claw 154 rotates and the peeling part 158 fits into the vertical groove 128. The dimensions of each part such as the fixed position, the actuating arm 146, and the guide hole 164 are set.

When the peeling portion 158 enters into the vertical groove 128, the peeling claw 154 separates the endless pressure belt 118 and the heating drum 11 from each other.
The photosensitive material 16 and the image receiving material 10 are sandwiched and conveyed between the photosensitive material 16 and the image receiving material 10.
8, it is adapted to engage only the leading end of the photosensitive material 16 stacked a predetermined length ahead of each other, and to separate this leading end from the outer periphery of the heating drum 116. Further, the peeled photosensitive material 16 is guided by a guide section 160.

In this case, when the peeling part 158 of the peeling claw 154 enters into the vertical groove 128, the peeling part 158 is located inside the outer peripheral surface of the heating drum, that is, between the photosensitive material 16 and the heating drum 118.
Since it is located inside the contact surface of the heating drum 116, the photosensitive material 16 does not get between the peeling part 158 and the heating drum 116, and the photosensitive material 16 can be reliably peeled off from the outer periphery of the heating drum 116. It has become.

A movable roller 170 is arranged near the peeling claw 154 side and has a length of 5". The movable roller 170 is connected to a shaft 148 via a leaf spring 172.
8, that is, it is rotatable together with the actuating arm 146.

The moving roller 170 normally comes into contact with the bending guide roller 142 and presses it slightly due to the biasing force of the leaf spring 172, but as the actuating arm 146 rotates in the direction of arrow B in FIG. It is configured to move in a direction away from the bending guide roller 142. Therefore, in this case, the photosensitive material 16 is peeled off from the outer periphery of the heating drum 116 by the peeling portion 158 of the peeling claw 154, and is removed from the movement locus of the photosensitive material 16 guided by the guide portion 160, thereby allowing the photosensitive material 16 to move. On the other hand, when the operating arm 146 overcomes the cam 130 and rotates in the eight direction of the arrow in FIG. 8, it moves in the direction approaching the bending guide roller 142. Therefore, in this case, the photosensitive material 16 that is peeled from the outer periphery of the heating drum 116 by the peeling part 158 of the peeling claw 154 and guided by the guide part 160 is pressed by the moving roller 170 and guided in a bending manner, and is guided by the bending guide roller 142. It is designed to be wrapped around.

On the other hand, near the heating drum 116 above the peeling claw 154,
A peeling roller 174 and a peeling claw 176 are arranged to peel off the image receiving material 108, which is separated from the photosensitive material 16 and moves together with the heating drum 116, from the outer periphery of the heating drum 116.

The thermal development transfer section 104 configured as described above is constructed as one unit as a whole, and is directed in the direction opposite to the position of the water application section 62 with respect to the machine base 12 (the photosensitive material magazine 1
4 and the side opposite to the receiving material magazine 106). Therefore, even if the photosensitive material 16 or the image-receiving material 108 becomes clogged (so-called jam) during transportation, it can be easily repaired.

Further, the thermal development transfer section 104 is covered with a heat insulating material, and a thin aluminum plate is attached to the inner peripheral surface thereof. For this reason, the halogen lamp 132A,
This makes it easier to raise the temperature of the heating drum 116 by the heating drum 132B, and prevents heat transfer to other parts.

A waste photosensitive material storage box 178 is arranged below the thermal development transfer section 104 (separation claw 154), and a cutter 180 is arranged at the entrance of the waste photosensitive material storage box 1780. The photosensitive material 16 peeled off from the outer periphery of the heating drum 116 and separated from the image receiving material 108 is transferred to the cutter 18.
Waste photosensitive material storage box 178 cut into pieces by 0
It is designed to be accumulated within.

Further, a drying fan 182 is arranged near the thermal development transfer section 104 (peeling roller 174), and
Air is blown onto the image receiving material 108 after it has been separated to dry it.

The image receiving material 108 peeled off from the outer periphery of the heating drum 116 by the peeling claw 176 is collected on a tray 184. In this case, the tray 184 is
The image receiving material 108 can be guided and accumulated in a direction perpendicular to the direction of conveyance by the heating drum 116.

Next, the operation of this embodiment will be explained.

The photosensitive material 16 drawn out from the photosensitive material magazine 14 by the roller roller 18 is cut into a predetermined length by the cutter 20 and then transported to the exposure section 22. Further, after cutting, the nip roller 18 is reversely rotated, and the drawn-out photosensitive material l6 is rewound into the photosensitive material magazine 14. Therefore, the leading end of the photosensitive material 16 is not wasted and is not exposed inadvertently.

The cut photosensitive material 16 is conveyed by conveyance rollers 24 and 26 and once passes through the exposure section 22 and reaches the branching section 32 . Here, the flapper 36 enters and blocks the transport path of the bifurcated photosensitive material 16 located below the apparatus, thereby moving the photosensitive material 16 above the apparatus of the flapper 36. Guide to the transport route located on the side.

Further, the guided photosensitive material 16 is reversed in the reversing section 34 so that its photosensitive (exposure) surface faces upward, and then conveyed from the branching section 32 (flapper 36) to the exposing section 22 again.

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 nipped by the conveying roller 26.
is 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, the light source 40 is activated, and the reflection mirror 46 enters the optical path of the image light irradiated to the exposure section 22, and the light irradiated via the movable mirrors 42A, 42B and the fixed mirror 44. is reflected in an approximately perpendicular direction. The reflected light is incident on the light detection sensor 56 and detected, thereby determining 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 exposure conditions for the color adjustment filter (CC filter) and the aperture slit plate 52 are set based on this measured value.

Next, the reflection mirror 46 leaves the optical path of the image light, and the light source 40, movable mirrors 42A, 42B, and lens unit 48 return to the home position (image scanning start position).

Here, the driving of the conveyance roller 24 and the conveyance roller 26 is started again, and the photosensitive material 16 has an exposure area 22 of 1 0 0
It passes at a speed of mm/sec. In this case, since the guide plate 28 and the exposure surface glass 30 are arranged in the exposure section 22, the photosensitive material 16 passes between both transport rollers (the exposure section) in a flat shape (while the deformation is corrected). .

At the same time as this photosensitive material 16 is transported (passing through the exposure section 22), the light source 40, movable mirrors 42A, 42B, and lens unit 48 move along the document placement plate 50, and are placed on the document placement plate 50. The reflected image light (image light) passes through a plurality of fixed mirrors 44 to the exposure unit 2.
The photosensitive material 16 located at 2 is scanned and exposed. It will be done.

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 conveying rollers 24 and 26 is resumed, the flat bar 37 is switched upward, and the exposed photosensitive material 16 is thereby conveyed to the reversing section 60 one after another. Further, the photosensitive material 16 is reversed by the reversing section 60 (that is, the image-exposed surface is directed downward) and then sent to the water application section 62 by the conveying rollers 29, 31, 33, and 35.

In the water application section 62, when the photosensitive material 16 conveyed from the reversing section 60 is detected by the sensitive material sensor 74, the conveyance speed of the conveyance rollers 29, 31, , 33, and 35 is reduced, and the supply roller 66 and squeeze roller 68 is driven,
As a result, the photosensitive material 16 is fed between the guide plate 70 and the coating tank 64, and is further fed into the squeeze roller 64.
8. Here, the application tank 64 is filled (replenished) with water in the replenishment tank 86 by driving the pump 80, so that the supply roller 66
Water is applied to the photosensitive material 16 fed between the guide plate 70 and the coating knob 64 by the squeeze roller 68, and the excess water is removed by the squeeze roller 68. The water passes through the water applicator 62 while being removed.

In this case, the bottom of the coating tank 64 and the guide plate 7
A plurality of rows of ribs 76 are formed on the lower surface of the photosensitive material 16 at an angle with respect to the conveyance direction of the photosensitive material 16.
Frictional resistance when the photosensitive material 16 passes between the guide plate 70 and the coating tank 64 is reduced, and the photosensitive material 16 is prevented from being scratched at a certain position.

Furthermore, a heater 10 is provided on the bottom outer periphery of the coating tank 64.
2 is attached to raise the temperature of the water filled in the coating tank 64 to 35±2°C. teeth), and the saturation amount is definitely reached.

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, cut into a predetermined length by the cutter 112, and then transported by the transport roller 114 and sent to the thermal development transfer section l04. Also,
After cutting, the nipping by the nip rollers 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.

In the thermal development transfer section 104 , the photosensitive material 16 and the image-receiving material 108 are fed between the outer periphery of the heating drum 116 and the bonding roller 120 .

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 16 sent from the squeeze roller 68 to be reliably guided to the bonding roller 120. Further, a blade guide 124 is disposed 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 114.
You will be guided to 0. Further, since back tension is applied to the photosensitive material 16 and the image receiving material 108 that are fed to the bonding rollers 1 and 20, the photosensitive material 16 and the image receiving material 108 are fed without wrinkles.

Furthermore, here, the photosensitive material 16 conveyed to the thermal development transfer section 104 is placed between the bonding roller 120 and the heating drum 116 such that its leading end is located in the center of the vertical groove 128 formed in the heating drum 116. sent in between, and
The image-receiving material 108 is transferred to the bonding roller 120 and the heating drum 116 in synchronization with the conveyance of the photosensitive material 16, with the photosensitive material 16 leading by a predetermined length (20 mm in this example).
It is sent between the two and overlapped. In this case, since the image-receiving material 108 is smaller in width direction and length direction than the photosensitive material 16, the sixth
As shown in the figure, the peripheral portions of the photosensitive material 16 are overlapped with each other with all four sides protruding from the peripheral portion of the image receiving material 1080.

Further, here, a horizontal groove 126 is formed on the outer periphery of the heating drum 116 so that the heating drum 116 and the bonding roller 120 can be connected to each other.
Since the pressure contact with the photosensitive material 16 and the image receiving material 108 is partially released, unnecessary adhesion of water to the photosensitive material 16 and the image receiving material 108 is prevented.

That is, for example, when image forming processing is performed continuously using the heating drum 116, water adhering to the back surface of the photosensitive material 16 is overlapped by the bonding roller 120 and squeezed out, as shown in FIG. 11(A). As shown, it remains in a bead shape between the bonding roller 120 and the heating drum 116. Therefore, unnecessary water adheres to the image-receiving material 108 that has subsequently entered the image-receiving material 108, causing deformation and unevenness. However, by forming the lateral groove 126 on the outer periphery of the heating drum 116, when the lateral groove 126 faces the bonding roller 120, the heating drum 116 and the bonding roller 120 are pressed against each other as shown in FIG. 11(B). As a result, some of the water that had been staying in a bead shape moves to the heating drum 116 and the other part to the bonding roller 120 due to its surface tension. Therefore, as the heating drum 116 and the bonding roller 120 rotate, natural evaporation occurs and the wiping cloth 1
It is wiped off and removed by 21.

Therefore, unnecessary water retention is eliminated before the photosensitive material 16 and the image receiving material 108 enter, and unnecessary water does not adhere to the image receiving material 108 that subsequently enters, thereby preventing deformation and unevenness. .

The photosensitive material 16 and the image receiving material 108, which have been superimposed by the bonding roller 120, are moved between the heating drum 116 and the endless pressure belt 118, with the photosensitive material 16 and the image receiving material 108 superimposed on each other by the bonding roller 120. 134
and the winding roller 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.
The image is transferred to the dye fixing layer No. 08 to obtain an image.

In this case, the photosensitive material 16 and the image-receiving material 108 are reliably overlapped, and the periphery of the photosensitive material 16 protrudes from the periphery of the image-receiving material 108 on all four sides and is in close contact with the outer periphery of the heating drum 116. A predetermined amount of pressure can be applied to each material without shifting, and high-quality images can be obtained.

Furthermore, since the endless press-contact belt 118 is directly and forcibly rotated by the winding roller 140 connected to the motor 194, the bending ratio of the winding portion is large and even if it is bent at a plurality of places, it can be reliably held in a predetermined position. rotates at a speed of Furthermore, the heating drum 116 has low resistance to rotational driving force, and the endless pressure welding belt 118 is in direct contact with the silicone rubber 216 attached to the heating drum 116, so that the rotational force from the endless pressure welding belt 118 due to frictional force is reduced. Transmission is performed reliably (part of the rotational force is transmitted without loss). Therefore, there is no difference in rotational speed between the endless pressure belt 118 and the heating drum 116.

Therefore, the photosensitive material 16 and the image receiving material 108 are sandwiched and conveyed by the endless pressure belt 118 and the heating drum 116.
There is no shearing force generated between the two materials that causes the two materials to shift, and image unevenness (transfer misalignment) does not occur, making it possible to obtain a good image.

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. No fogging occurs.

Here, while the photosensitive material 16 and the image-receiving material 108 are being sandwiched and conveyed (that is, during the heat transfer process), the bottle 166 that fits into the guide hole 164 of the peeling claw 1540 is rotated by the screw connected to the shaft 148. It is located at the front end (separation part 158 side) of the guide hole 164 by the biasing force of the spring 152, thereby holding the peeling claw 154 and separating the peeling part 158 from the outer periphery of the heating drum 116. (as shown in Figure 9).

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
The peeling portion 158 of the peeling claw 154 engages with the leading end of the photosensitive material 16 that is being conveyed a predetermined length ahead of the photosensitive material 16, thereby peeling the leading end of the photosensitive material 16 from the outer periphery of the heating drum 116.

That is, when the heating drum 116 rotates and the cam 130 reaches a predetermined position, the engagement roller 15 of the actuation arm 146
0 is pressed against the cam 130, and the heating drum 116
With the rotation of , it rotates in the direction of arrow B in FIG.

Along with this, the bottle 166 moves into the guide hole 16 of the peeling claw 154.
4 to the rear end (in the direction of the axis 148), the holding of the peeling claw 154 is gradually released, and the peeling claw 1
54 is a direction in which the peeling portion 158 approaches the outer periphery of the heating drum 116 due to the urging force of the tension spring 162 (the eighth direction).
(in the direction of arrow C in the figure), and the peeling portion 158 enters into the vertical groove 128.

Further, as the operating arm 1460 rotates, the moving roller 170 rotates and separates from the bending guide roller 142 (as shown in FIG. 10).

When the peeling part 158 of the peeling claw 154 fits into the vertical groove 128, 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 are removed.
It engages only the leading end of the photosensitive material 16 stacked one on top of the other by a predetermined length, and the leading end is connected to the heating drum llfl.
Peel it off from the outer periphery of i. Further, the peeled photosensitive material 16 is guided by a guide section 160.

In this case, when the peeling part 158 of the peeling claw 154 enters into the vertical groove 128, the peeling part 158 is located inside the outer peripheral surface of the heating drum, that is, between the photosensitive material 16 and the heating drum 118.
Since the photosensitive material 16 is located inside the contact surface of the heating drum 116, the photosensitive material 16 does not get between the peeling section 158 and the heating drum 116, and the photosensitive material 16 can be reliably peeled off from the outer periphery of the heating drum 116.゛In this case, the moving roller 170 is the bending guide roller 14.
2, the peeling portion 158 of the peeling claw 154
The guide portion 1 is peeled off from the outer periphery of the heating drum 116 by
It is separated from the movement locus of the photosensitive material 16 guided by the guide 60, and does not prevent the movement of the photosensitive material 16.

When the heating drum 116 further rotates and the engaging roller 150 passes over the cam 130, the actuating arm 146 moves downward in the direction of the arrow 8 in FIG. 8 due to the biasing force of the torsion spring 152 and returns to its original position.

Therefore, the pin 166 moves to the front end (separation part 158 side) of the guide hole 164 of the peeling claw 154 against the biasing force of the tension spring 162, and as a result, the peeling claw 1
54 is rotated in the direction of arrow D in FIG.

Furthermore, at the same time, as the actuating arm 146 rotates, the moving roller 170 moves in a direction approaching the bending guide roller 142. Therefore, the peeling portion 1 of the peeling claw 154
The photosensitive material 16 peeled off from the outer periphery of the heating drum 116 by 58 and guided by the guide section 160 is pressed by the moving roller 170 and guided in a bending manner, and wound around the bending guide roller 142 .

The photosensitive material 16 that is bent downward by the moving roller 170 and wound around the bending guide roller 142 is nipped and conveyed downward by the bending guide roller 142 and the moving roller 170.

Further, this photosensitive material 16 is 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, moves through between the heating drum 116 and the peeling claw 176 which is spaced apart from the outer periphery of the heating drum 116. , and sent to a peeling roller 174.

Further, here, the tray 1 is peeled off from the outer periphery of the heating drum 116 by the peeling roller 174 and the peeling claw 176.
84.

As described above, in this embodiment, the endless pressure belt 118
The silicone rubber 216 is attached to the outer periphery of the heating drum 116 so as to be in direct contact with the heating drum 116, and since the frictional resistance is large between the endless pressure belt 118 and the silicone rubber 216, rotational force is reliably transmitted. Therefore, there is no difference in rotational speed between the endless pressure belt 118 and the heating drum 116. therefore,
Shearing force is not generated between the photosensitive material 16 and the image-receiving material 108, which are sandwiched and conveyed by the endless pressure belt 118 and the heating drum 116, so that the two materials do not shift, and image unevenness (transfer misalignment) does not occur. A good image can be obtained.

In this embodiment, the endless pressure belt 118 is connected to the winding roller 14 which is supplied with the rotational driving force of the motor 194.
Furthermore, this endless pressure belt 11
Although the configuration is such that the heating drum 116 is passively rotated by the rotational force of the heating drum 4116 being transmitted by the frictional force between the heating drum 116 and the heating drum 116, the present invention is not limited to this.
94 may be applied to rotate the heating drum 116, and furthermore, the rotational force of the heating drum 116 may be transmitted by frictional force to cause the endless pressure belt 118 to rotate in a driven manner.

Further, in this embodiment, the photosensitive material 16 and the image receiving material 108 are used as image recording materials, and the photosensitive material 16 is conveyed so as to be positioned outside the image receiving material 108, but the present invention is not limited to this. It is applicable even when the photosensitive material 16 is transported while being located inside, and further,
In addition to these materials, other sheet-like image recording materials can also be used.

[Effects of the Invention] As explained above, the image recording device according to the present invention equalizes the rotational speed of the drum and the endless pressure belt that is in pressure contact with a part of the outer circumference of the drum. Image recording materials such as photosensitive materials or image-receiving materials are held and conveyed in close contact with each other, resulting in uneven transfer (transfer misalignment).
This has the effect of making it possible to form images without

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a heating drum according to an embodiment of the present invention, FIG. 2 is a partial sectional view of a heating drum and an endless pressure belt, and FIG. 3 is a schematic configuration of an image recording device according to an embodiment of the present invention. 4 is a configuration diagram of a water application section according to an embodiment of the present invention, and FIG. 5(A) is a back view of a guide plate according to an embodiment of the present invention.
, FIG. 5(B) is a cross-sectional view of the guide plate, FIG. 6 is a plan view showing the overlapping state of the photosensitive material and image-receiving material, and FIG. 7 is a winding roller and its surroundings according to an embodiment of the present invention. FIG. 8 is a perspective view showing the peeling claw and its surrounding parts; FIGS. 9 and 10 are side views showing the operating state of the peeling claw; FIGS. 11 (A) and 11 ( B) is a schematic side view showing the state of water remaining between the heating drum and the bonding roller. 10... Image recording device, 16... Photosensitive material, 104... Thermal development transfer section, 108... Image receiving material, 116... Heating drum, 118... Endless pressure contact belt, - Silicone rubber.

Claims (1)

[Claims] (1) A drum, and an endless press-contact belt that presses against a part of the outer circumference of the drum, and two different image recording materials are tightly wound around the outer circumference of the drum as it rotates, and the endless press-contact belt is attached to the drum. The image recording apparatus performs image recording processing by sandwiching and transporting the image recording material wound around the outer circumference of the drum. An image recording device characterized in that it is equipped with a friction member that comes into contact with the image recording device.