JP2003186367A - Image forming apparatus to composite recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent stress which may give bad influence on a second recording medium from being imposed in an image forming process on a first record medium of a composite recording medium, where the second recording medium is provided at one part of the region of the first recording medium. <P>SOLUTION: An image forming apparatus is constituted so that a heating roller 49a is estranged from a composite recording medium 3, when the region of the second recording medium 2 of the composite recording medium 3 passes through a nip part of the heating roller 49a and a pressure roller 49b; and a heating roller 49a is touched a composite recording medium 1, when the region where the second recording medium 2 of the first recording medium 1 is not yet stuck passes through the nip part. By making the heating roller 49a be estranged from the composite recording medium 3, thermal stress against the second recording medium 2 can be prevented from being imposed, wear and breakage of the second recording medium 2 which occur from the contact with the heating roller 49a can be prevented, and also wear and breakage of the surface of the heating roller 49a which occur from the contact with the second recording medium 2 can be prevented. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image forming apparatus capable of performing image forming processing on a sheet-shaped first recording medium such as paper or OHP sheet.

[0002]

2. Description of the Related Art Conventionally, there has been known one which forms an image on a sheet-shaped first recording medium such as a sheet of paper or an OHP sheet by an electrophotographic system, an inkjet system or the like.

In the invention described in Japanese Patent Application Laid-Open No. 07-36306, in an electrophotographic image forming apparatus, when an abnormality such as a paper jam occurs, power is supplied to a heat generating member in a heating roller that constitutes a fixing device. While stopping, the pressure roller is mechanically separated from the heating roller. According to this, since the recording medium that has been conveyed while being nipped in the fixing nip portion (pressing contact portion) between both rollers is separated from the heating roller, the recording medium is heated when an abnormality such as a paper jam occurs. Can be prevented from being damaged.

[0004]

SUMMARY OF THE INVENTION However, the invention described in the above publication is intended to prevent troubles when an abnormality such as a paper jam occurs, and when an image is formed on a composite recording medium as described above. In addition, no consideration is given to the risk that the second recording medium is adversely affected by various stresses applied to the second recording medium during the series of image forming processes on the first recording medium.

That is, in the case of using the composite recording medium as described above, even if the series of image forming processes on the first recording medium is normally performed, the thermal stress during the fixing process and the Information written in the second recording medium may be lost, or the second recording medium may be functionally deteriorated or damaged due to mechanical stress during transportation, electrical stress during transfer processing, or the like. There is. The problem of mechanical stress occurs not only in an electrophotographic image forming apparatus, but also in an image forming apparatus of another system such as an inkjet system.

The present invention has been made to solve the above-mentioned problems, and stresses that adversely affect the second recording medium during the image forming process of the first recording medium of the composite recording medium. It is an object of the present invention to provide an image forming apparatus for a composite recording medium, which can prevent the addition of an image.

[0007]

The present invention has the following constitution in order to achieve the above object. A first aspect of the present invention is to provide a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided as a heating member and a supporting member. A fixing unit that fixes the image on the first recording medium by passing the fixing member between the heating member and the pressing member when the first recording medium passes through the fixing unit. When the second recording medium passes through the fixing section, the distance between the heating member and the pressing member is changed to a second interval which is larger than the first interval. Image forming apparatus.

According to the first aspect of the present invention, thermal stress can be prevented from being applied to the second recording medium by making the second interval larger than the first interval. Therefore, the second
The information written on the recording medium itself and the second recording medium can be protected from thermal damage.

A second aspect of the present invention is to provide a sheet-shaped first recording medium capable of forming an image and a second recording medium having a rigidity higher than that of the first storage medium and capable of writing and reading information. An image forming unit for forming an image on the first storage medium of a composite recording medium provided integrally with the second recording medium, and a curved conveyance path with which the second recording medium comes into contact with the wall surface when the conveyance direction is changed. The path has a movable curved conveyance path wall surface facing the second recording medium, and when the second recording medium passes through the curved conveyance path, the curved conveyance path wall surface is moved to the second recording medium. There is an image forming apparatus for a composite recording medium that moves in a direction away from.

According to the second aspect of the present invention, when the area of the second recording medium of the composite recording medium passes through the curved conveyance path,
By moving the curved conveyance path wall surface facing the second recording medium in a direction away from the second recording medium, the second recording medium having higher rigidity than the first recording medium interferes with the conveyance path and is damaged or conveyed. It can prevent the road from being blocked.

A third gist of the present invention is a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided.
When the composite recording medium passes through the pressing unit, the pressing unit has a pressing unit that conveys while passing between the pressure contact facing members.
In the image forming apparatus for the composite recording medium, the second recording medium passes outside between the pressure contact facing members.

According to the third aspect of the present invention, when the composite recording medium passes through the pressing portion, the second recording medium passes outside between the pressure contact facing members, so that the second recording medium It is possible to prevent the thermal stress, wear, and damage of the above, and to prevent the surface of the pressure-contacting opposing member from being damaged.

A fourth aspect of the present invention is to provide a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided. The medium has a transfer portion for transferring the toner image formed on the toner image carrier by an electric attraction action, and when the second recording medium of the composite recording medium passes through the transfer portion, An image forming apparatus for a composite recording medium, which separates the composite recording medium from the toner image carrier.

According to the fourth aspect of the present invention, when the second recording medium of the composite recording medium passes through the transfer portion, the composite recording medium is separated from the toner image carrier to form the second recording medium. To the second recording medium due to contact with the toner image carrier, and to prevent abrasion of the surface of the toner image carrier due to contact with the second recording medium, Can prevent damage.

A fifth aspect of the present invention is the first recording of a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided. The medium has a transfer section for transferring the toner image formed on the toner image carrier by an electric attraction action, and when the composite recording medium passes through the transfer section, the second section is used.
An image forming apparatus for a composite recording medium in which the recording medium passes through a non-charged area of the toner image carrier.

According to the fifth aspect of the present invention, the second recording medium is configured so as to pass through the non-charged area of the toner image bearing member, so that the second recording medium is electrically stressed. Can be prevented more effectively.

According to a sixth aspect of the present invention, when the second recording medium passes through the transfer area, the current supply for transferring is cut off. An image forming apparatus for a recording medium.

According to the sixth aspect of the present invention, when the second recording medium of the composite recording medium passes through the transfer area, the current supply for performing the transfer is interrupted, so that the second recording medium is supplied to the second recording medium. The electrical stress can be more effectively prevented.

A seventh aspect of the present invention is a first recording of a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided. An image forming apparatus for a composite recording medium, which comprises a transfer unit for transferring the toner image formed on the toner image carrier by an electric attraction action on the medium, and the second recording medium passing outside the transfer unit. It is in.

According to the seventh aspect of the present invention, when the composite recording medium passes through the transfer portion, the second recording medium passes outside the transfer portion. It is possible to prevent the electrical stress from being applied and to prevent the second recording medium from being worn or damaged due to contact with the toner image carrier, and also to prevent the toner image carrier surface from being worn or damaged due to contact with the second recording medium. Can be prevented.

An eighth aspect of the present invention is to provide a first recording of a composite recording medium in which a sheet-shaped first recording medium enabling image formation and a second recording medium capable of writing / reading information are integrally provided. An image forming apparatus for a composite recording medium includes a post-processing device that performs post-processing on an area where the second recording medium does not exist after the image forming processing on the medium is completed.

According to the eighth aspect of the present invention, the post-processing of the composite recording medium is performed on the area where the second recording medium does not exist, so that the post-processing of the second recording medium is performed. Can be prevented from being damaged.

According to a ninth aspect of the present invention, the post-processing apparatus stores a storage unit for storing an existing area of the second recording medium on the composite recording medium, and the second unit stored in the storage unit. The image forming apparatus for a composite recording medium according to the eighth aspect is characterized by further comprising: control means for controlling the post-processing mechanism so as to exclude the existing area of the recording medium from the post-processing execution area.

According to the ninth aspect of the present invention, by storing the existing area of the second recording medium on the composite recording medium in the storage means, the existing area of the second recording medium is changed from the post-processing execution area. Since the post-processing mechanism is controlled by the control unit so as to be excluded, it is possible to prevent the second recording medium from being damaged by the post-processing.

A tenth aspect of the present invention is to perform an image forming process on a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided. The information writing unit has an image forming unit for performing the writing and an information writing unit for writing information on the second recording medium, and the information writing unit is provided on a conveying path or a discharging unit of the composite recording medium after the image forming process is completed. An image forming apparatus for a composite recording medium is provided.

According to the tenth aspect of the present invention, by performing the writing process of the information to the second recording medium after the image forming process is completed, the mechanical process in the process of the image forming process can be performed.
It is possible to prevent the information held in the second recording medium from being lost due to thermal or electrical stress.

An eleventh aspect of the present invention is to perform an image forming process on a composite recording medium in which a sheet-shaped first recording medium enabling image formation and a second recording medium capable of writing and reading information are integrally provided. An image forming unit for applying the information and an information confirming unit for confirming information written on the second recording medium, wherein the information confirming unit is a conveyance path for the composite recording medium after the image forming process is completed. Alternatively, it is in an image forming apparatus for a composite recording medium provided in a discharge section.

According to the eleventh aspect of the present invention, by performing the confirmation process of the information written in the second recording medium after the image forming process is completed, the mechanical and thermal processes in the process of the image forming process are performed. Even if the information held in the second recording medium is lost due to physical or electrical stress, it can be confirmed.

A twelfth aspect of the present invention is to provide a composite recording medium in which a sheet-shaped first recording medium enabling image formation and a second recording medium capable of writing and reading information are integrally provided.
An image forming unit that forms an image on the first recording medium while being conveyed between at least a pair of conveying rollers that rotate in pressure contact with each other, and when the second recording medium passes between the conveying rollers, Is an image forming apparatus for a composite recording medium which releases pressure contact between the conveying rollers and separates the conveying rollers from the second recording medium.

According to the twelfth aspect of the present invention, when the area of the second recording medium passes between the conveying rollers, the pressure contact between the conveying rollers is released and the conveying roller is separated from the second recording medium. , Preventing the second recording medium from being mechanically stressed due to the pressure contact force, and preventing the second recording medium from being worn or damaged due to the contact with the conveying roller. Wear and damage can be prevented.

A thirteenth aspect of the present invention is that a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided is a rotating body. Composite recording having an image forming unit that forms an image on the first recording medium while being conveyed by contact, and a contact area of the rotating body with respect to the composite recording medium is outside a passage area of the second recording medium. An image forming apparatus for a medium.

According to the thirteenth aspect of the present invention, the contact area of the rotating body with respect to the composite recording medium is outside the area of the second recording medium, so that the rotating body comes into contact with the second recording medium. It is possible to prevent the physical stress from being applied, and to prevent the rotating body from being worn or damaged due to contact with the second recording medium.

A fourteenth aspect of the present invention is to convey a composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided, The second recording medium includes an image forming unit that forms an image on the first recording medium by using a print head that reciprocates in a direction orthogonal to the transport direction of the composite recording medium, and the second recording medium reciprocates the print head. In the image forming apparatus for the composite recording medium, the print head is moved in an area other than the passage area of the second recording medium when passing through the feasible area.

According to the fourteenth aspect of the present invention, when the second recording medium passes through the reciprocating movable region of the print head, the print head is moved in a region other than the passing region of the second recording medium. The second contact due to contact with the print head
It is possible to prevent damage to the recording medium and prevent damage to the print head due to contact with the second recording medium. In addition, it is possible to prevent an adverse effect such as destruction of information due to the adhesion of the ink on the second recording medium.

[0035]

BEST MODE FOR CARRYING OUT THE INVENTION Next, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an internal perspective front view showing the configuration of a digital copying machine which is a type of image forming apparatus according to the present invention.

The main body of the digital copying machine 30 is roughly divided into a scanner section 31 and a laser recording section 32.

The scanner section 31 includes a document placing table 35 made of transparent glass, and a double-sided automatic document feeder (RAD) for automatically conveying and setting a document on the document placing table 35.
F) 36 and a scanner unit 40 for scanning and reading the image of the original document placed on the original document table 35.

The original image read by the scanner unit 31 is sent to an image processing unit (not shown) as image data and subjected to predetermined image processing.

The RADF 36 is a device for automatically picking up the originals one by one from the original stack set on the original tray and feeding them to the original placing table 35 of the scanner unit 40. Further, the RADF 36 is configured so that the scanner unit 40 can read one side or both sides of a document according to the operator's selection, so that a transport route for a single-sided document, a transport route for a double-sided document, a transport route switching means, and each section. It is provided with a sensor group and a control unit for grasping and managing the state of the original document passing through.

The scanner unit 40 includes first and second scanning units 40a and 40b for scanning the document surface.
And a photoelectric conversion element for converting a scanned image into an electrical image signal
(CCD) 44. First scanning unit 4
Reference numeral 0a denotes an exposure device 41 including a lamp and a reflector for exposing the surface of the original placed on the original table 35, and a first reflection unit for guiding a reflected light image from the original to the second scanning unit 40b. It is equipped with a mirror 42a. The second scanning unit 40b has second and third reflecting mirrors 42b and 42c for guiding the reflected light image from the first scanning unit 40a to the photoelectric conversion element 44. The reflected light image from the second scanning unit 40b is formed on the light receiving surface of the photoelectric conversion element 44 via the optical lens 43.

The scanner section 31 and RADF 36 operate in conjunction with each other. That is, while the RADF 36 sequentially places the originals to be read on the original placing table 35, the scanner unit 31 follows the lower surface of the original placing table 35 and the first and second scanning units 40 a, 4 a of the scanner unit 40.
0b is moved to read the original image. At that time, the first scanning unit 40a travels from the left side to the right side in the figure at a constant speed V along the document loading table 35,
The second scanning unit 40b has V / V for its speed V.
It is controlled to run parallel to the same direction at a speed of 2.
As a result, the image of the document placed on the document placement table 35 is sequentially formed line by line on the photoelectric conversion element 44 to read the image.

The image data obtained by reading the original image with the scanner unit 40 is sent to an image processing unit (not shown) and subjected to various processing, and then temporarily stored in the memory in the image processing unit. Then, the image data is read from the memory according to the output instruction and transferred to the laser printer unit 32.

The laser printer unit 32 conveys a recording medium as an image forming object (hereinafter referred to as a medium conveying system),
A laser writing unit 46 and an electrophotographic process unit 48 for forming an image are provided.

The laser writing unit 46 emits a laser beam whose intensity is modulated according to the image data read from the memory in the image processing section or the image data transferred from an external device such as a personal computer. Of the polygon mirror for deflecting the laser light of the above at a constant angular velocity, and the laser light from the polygon mirror is deflected at a constant angular velocity on the photoconductor drum (toner image carrier) 48a constituting the electrophotographic process section 48. It has a fθ lens and the like.

The electrophotographic process section 48 includes a charging device 58, a developing device 47, a transfer device 61, and a photosensitive drum 48a around the photosensitive drum 48a.
A peeling device, a cleaning device, a static eliminator, etc. are arranged. A series of processes in the electrophotographic process section 48 is performed while rotating the photosensitive drum 48a in the main scanning direction (direction shown by an arrow A in the drawing) at a constant speed.

At the time of image formation, the charging device 58 first performs a process of uniformly charging the surface of the photosensitive drum 48a. After the charging process, the laser writing unit 46 irradiates the surface of the photoconductor drum 48a with a laser beam while scanning (deflecting) the laser beam in the sub-scanning direction, so that the surface of the photoconductor drum 48a is electrostatically charged according to the image data. A latent image is formed. The developing device 47 is attached to the surface of the photosensitive drum 48a.
The electrostatic latent image is visualized by supplying the toner with. The toner image thus formed on the photosensitive drum 48a is transferred to the recording medium by the transfer device 61.

The recording medium is transferred to the transfer area R by the medium conveying system.
Sent to. The medium carrying system is provided with a carrying path 50 for selectively taking out a recording medium from the medium cassettes 51, 52, 53 set in the main body of the copying machine and feeding it to the electrophotographic process section 48, and from the outside of the main body of the copying machine. A manual feeding device 54 for appropriately feeding a recording medium of any type to the electrophotographic process section 48 is provided. Medium cassette 5
Recording media 1, 52, and 53, which are different in size, type, and paper feeding direction, are stored. In the middle of the transport path 50, there are provided pairs of transport rollers 25 and 26 that rotate in pressure contact with each other.
The recording medium taken out from 53 is fed to these conveying rollers 2
5 and 26 convey the inside of the conveying path 50.

The conveyance path 50 is connected to the feeding section 33 located immediately upstream of the electrophotographic process section 48, and the recording medium taken out from the medium cassettes 51, 52 and 53 is fed through the conveyance path 50. The sheet is conveyed to the section 33 and is fed from the feeding section 33 to the transfer region R of the electrophotographic process section 48, that is, between the photosensitive drum 48 a and the transfer unit 61. The recording medium inserted from the manual feeding device 54 is directly fed to the transfer region R via the feeding unit 33. The recording medium sent to the transfer area R is conveyed in accordance with the rotation of the photosensitive drum 48a. Meanwhile, the photosensitive drum 48a
The upper toner image is transferred onto the recording medium. The recording medium that has passed through the transfer area R is conveyed to the fixing device 49 by the conveyor belt 63.

The fixing device 49 includes a pair of heating rollers (heating members) 49a and pressure rollers (pressurizing members) 49b that rotate in pressure contact with each other. The recording medium that has passed through the transfer area R is inserted into the nip portion (pressure contact portion) between both rollers. Then, the toner image transferred onto the recording medium is melted and fixed onto the recording medium by the heat and pressure applied when passing through the fixing device 49.

In the medium carrying system, the recording medium that has undergone the fixing process, that is, the recording medium that has passed through the fixing device 49 is formed in order to form an image again on the other side (back side) of the recording medium which has finished the image forming process on one side (front side). A resupply path (conveyance path) 56 for resupplying the electrophotographic process section 48 is provided.
The resupply path 56 is connected to the medium reversing device 55. The recording medium conveyed to the medium reversing device 55 through the re-supply path 56 is turned upside down here, and then is sent again to the electrophotographic process section 48 via the transfer path 50 and the feeding section 33, as in the case of the surface. Then, the back side is subjected to image forming processing.

On the downstream side of the branching portion 56a to the re-supply path 56, a pair of upper and lower conveying rollers 5 rotating in pressure contact with each other.
A medium ejecting device 57 including 7a and 57b is provided. The recording medium that has passed through the fixing device 49 and has not been branched to the resupply path 56 is sent out of the copying machine main body through the medium discharging device 57.

A post-processing device 34 is arranged on the side surface of the copying machine body on the recording medium ejection side (the left side surface in the drawing). The post-processing device 34 receives the recording medium sent out of the copying machine main body through the medium ejecting device 57, and performs post-processing such as punching and stapling for each set number of media.
The recording medium after the post-processing is discharged onto the medium discharge tray 342. On the other hand, the recording medium that has not been subjected to the post-processing is discharged onto the medium discharge tray 341.

Next, the characteristic part of the image forming apparatus according to the present embodiment will be described. The digital copying machine 30 of this embodiment is capable of performing image forming processing on the complex machine recording medium 3 as shown in FIG. 2 in addition to ordinary paper or OHP sheets.

The composite recording medium 3 shown in FIG. 2 is paper, OHP.
A second recording medium 2 capable of reading / rewriting data using heat, radio waves, light, or the like is attached to or adhered to the first recording medium 1 in a part of the area of the first recording medium 1 such as a sheet for printing. It is fixed or detachably installed. The image forming surface of the first recording medium 1 and the data reading / rewriting surface of the second recording medium 2 may be the same surface side or the opposite surface side.

As the second recording medium 2, a storage medium such as a sheet in which data can be rewritten via contact means, or a memory in which data can be read / written using non-contact means can be applied.

The contact means has, for example, heat, and can supply data to a thermal rewritable sheet, that is, a rewritable sheet of data by heat, via a heater member.

Examples of the non-contact means include radio waves (ultra long wave, long wave, medium wave, short wave, ultra short wave, ultra short wave (including microwave), etc.), light, magnetism and the like.

An example of a memory that can be read / rewritten using radio waves is an "IntelliTag" (registered trademark of Intermec Inc., USA) that reads / rewrites data using microwaves.

As described above, when the composite recording medium 3 is used, even if the series of image forming processes on the first recording medium 1 is normally performed, the thermal stress during the fixing process is increased. The information written in the second recording medium 2 may be lost, or the second recording medium 2 may be functionally deteriorated or damaged due to mechanical stress during transport, electrical stress during transfer processing, or the like. there's a possibility that.

Therefore, the digital copying machine 3 of the present embodiment
In No. 0, the following various measures are taken.

First, the measures for preventing stress in the fixing process in the fixing device 49 will be described with reference to FIGS.

As shown in FIGS. 3 to 5, a medium detecting sensor 10 for detecting the composite recording medium 3 is provided upstream of the fixing device 49 in the conveying direction of the composite recording medium 3. When the composite recording medium 3 is conveyed near the entrance of the fixing device 49, the front end of the composite recording medium 3 is detected by the medium detecting sensor 10 (FIG. 3). Since the position of the second recording medium 2 on the composite recording medium 3 is predetermined, a heating roller separating / contacting mechanism, which will be described later, is provided after a lapse of a predetermined time after the tip of the composite recording medium 3 is detected by the medium detecting sensor 10. Thus, the distance between the heating roller 49a and the pressure roller 49b is increased. Thereby, the heating roller 49a and / or
It is possible to prevent the pressure roller 49b from applying heating, pressing, etc. to the data of the second recording medium 2 that would destroy the data of the second recording medium 2, and prevent the data of the second recording medium 2 from being destroyed. Can be done (Fig. 4 → Fig. 5).

As a means for protecting the data of the second recording medium 2 from the heating and pressing of the heating roller 49a and / or the pressure roller 49b, for example, the heating roller 49a is used.
And / or the non-destructive range where the pressure roller 49b does not come into contact with the second recording medium 2 or the non-destructive contact range where the data of the recording medium 2 is not destroyed. Can be realized by changing the pressure contact state or the pressure contact state.

Then, the heating roller 49a and the pressure roller 49b are separated from each other, the interval is changed, or the pressure contact state is changed for a predetermined time after the medium detecting sensor 10 detects the front end of the composite recording medium 3. Then, the heating roller 49a and the pressure roller 49b are returned to a predetermined pressure contact state again in preparation for the next image formation.

The heating roller 49a and the pressure roller 49b.
As a means for separating, changing the interval, or changing the pressure setting state,
In the present embodiment, the heating roller 49a is moved upward, but the present invention is not limited to this. By moving at least one of the heating roller 49a and the pressure roller 49b,
You should widen the distance from each other.

FIG. 6 shows a heating roller interval changing mechanism of this embodiment. In FIG. 6, reference numeral 11 is a motor, reference numeral 12 is a gear fixed to the rotation shaft of the motor 11, reference numeral 13 is a rotating arm that rotatably supports a heating roller 49a, and reference numeral 15 is a heating roller 49a. Is the axis of rotation.

The rotating arm 13 has a substantially fan shape whose width gradually narrows toward one end at the tip 13a, and the vicinity of the tip 13a on the narrow side has the digital copying machine 30 side and the fixed support shaft 14.
The end portion 13b on the wide side is engaged with the gear 12 of the motor 11 fixedly supported by the main body of the digital copying machine 30, and the heating roller 49a is provided between the tip portion 13a and the end portion 13b. Is rotatably engaged with and supported by the rotary shaft 15.

The tip 13a of the rotating arm 13 is rotatable with respect to the main body of the digital copying machine 30 about the fixed support shaft 14.

The end portion 13b of the rotating arm 13 has an arc shape and forms a rack in which gears are formed in a predetermined range.
This rack meshes with the pinion gear 12 on the motor 11 side.

The means for rotatably engaging and supporting the rotary arm 13 and the rotary shaft 15 is not limited to through engagement, rotatable support engagement, and the like.

In the structure of the heating roller interval changing mechanism, when the motor 11 rotates, the rotational force is transmitted to the rack of the end portion 13b of the rotating arm 13 via the pinion gear 12 of the rotating arm 13, and the rotating arm is rotated. 13 is a fixed support shaft 1
4, the heating roller 49a also swings vertically with respect to the digital copying machine 30 via the rotary shaft 15.

That is, in the state shown in FIG. 6A, that is, when the heating roller 49a is in pressure contact with the pressure roller 49b, the motor 11 is rotationally driven counterclockwise (in the direction of arrow B in the figure). Then, since the rotating arm 13 rotates upward with the fixed support shaft 14 as a support shaft, the pressure roller 49
a moves upward and separates from the pressure roller 49b as shown in FIG. 6 (b). After that, when the motor 11 is driven to rotate in the clockwise direction (the direction of arrow C in the figure), the rotating arm 13 rotates downward with the fixed support shaft 14 as a support shaft, so that the pressure roller 49a moves downward. It moves and returns to the state shown in FIG.

As described above, the area of the second recording medium 2 of the composite recording medium 3 is the nip portion (heating roller 49) of the fixing device 49.
a) and the pressure roller 49b), the heating roller interval changing mechanism is operated to separate the heating roller 49a from the pressure roller 49b, so that the heating roller 49a and / or the pressure roller 49b are By preventing the second recording medium 2 from being in a non-contact state or a non-destructive contact state, it is possible to prevent thermal stress from being applied to the second recording medium 2,
Further, it is possible to prevent the second recording medium 2 from being worn or damaged.
In addition, the heating roller 49a due to contact with the second recording medium 2
It is possible to prevent abrasion and damage of the surface of the pressure roller 49b.

With the above-described structure, the distance between the heating roller and the pressure roller is increased as a measure for preventing data destruction due to heat, pressure, etc. on the second recording medium 2 during the fixing process of the composite recording medium 3 (first recording medium 1). The means has been described, but the data destruction preventing means for the heat and pressure of the heating roller and the pressure roller to the second recording medium 2 by the structure of the composite recording medium 3 without changing the distance between the heating roller and the pressure roller. Will be described below.

FIG. 7 shows that the second recording medium 2 on the composite recording medium 3 passes outside the nip portion (pressure contact portion) between the heating roller 49a and the pressure roller 49b forming the fixing device 49. The width dimension of the first recording medium 1 in the direction orthogonal to the conveying direction is longer than that of a recording medium normally used in a copying machine, and interferes with the heating roller 49a and the pressure roller 49b on the first recording medium 1. The second recording medium 2 is provided in the area not to be printed.

As described above, the composite recording medium 3 is fixed to the fixing device 4.
When passing through 9, the area of the second recording medium 2 is heated by the heating roller 4
By passing the outside of the nip portion between the pressure roller 49a and the pressure roller 49a, it is possible to prevent the second recording medium 2 from being subjected to thermal stress and to contact the heating roller 49a. Second wear and damage are prevented, and second
It is possible to prevent wear and damage on the surface of the heating roller 49a due to contact with the recording medium 2.

Next, with reference to FIGS. 8 to 10, a description will be given of measures for preventing mechanical stress that the composite recording medium 3 receives during the conveyance of the conveyance path.

That is, when the composite recording medium 3 is conveyed along the conveying path and the composite recording medium 3 changes its conveying direction, the composite recording medium 3 bends and the second recording medium 2
May interfere with the transport road surface and be damaged. Therefore, in order to prevent the second recording medium 2 from being damaged from the conveyance path surface, the curved portion where the damage of the second recording medium 2 is caused is moved, that is, separated, in accordance with the passage of the second recording medium 2. Prevent such adverse effects. Less than,
This will be specifically described.

In the middle of the conveying path 50 (FIG. 1), there are some points bent (curved) at about 90 degrees. The illustrated example shows a bent portion (high-curvature transport area) 50a immediately downstream of the medium cassettes 51, 52, and 53.

In the vicinity of the medium outlets of the medium cassettes 51, 52 and 53, the medium detecting sensor 2 is exposed in the conveying path 50.
1 is provided, and when the composite recording medium 3 is transported in the direction of the transport path 50, the front end of the composite recording medium 3 is detected by the medium detection sensor 21.

Outer guide member (conveyance path member) 22 of the guide members forming the bent portion 50a of the conveyance path 50.
One end is rotatably supported by a support shaft 23.
A drive shaft 24a of a guide member opening / closing device (for example, a linear actuator such as a solenoid) 24 is connected to the outer guide member 22, and when the drive shaft 24a is extended as shown in FIGS. 8 and 9, the outer guide member is extended. When the drive shaft 24a is contracted as shown in FIG. 10, the outer guide member 22 is in the open state, that is, the outer peripheral portion of the bent portion 50a is open.

Since the position of the second recording medium 2 on the composite recording medium 3 is predetermined, the drive shaft 24a of the guide member opening / closing device 24 is moved after the elapse of a predetermined time after the tip of the composite recording medium 3 is detected. The outer guide member 22 is contracted.
Rotate outward. As a result, the outer peripheral portion of the bent portion 50a is opened as shown in FIG. 9, and it is possible to prevent the second recording medium 2 from coming into contact with the outer guide member 22. On the other hand, when the outer guide member 22 is not opened, the second recording medium 2 interferes with the outer guide member 22 as shown in FIG. Outer guide member 22
Is opened for a predetermined time, and the second recording medium 2 is bent at the bent portion 50.
After passing through a, the drive shaft 24 of the guide member opening / closing device 24
A is extended to return the outer guide member 22 to the closed state, and the image forming process for the next recording medium is prepared again.

Thus, when the area of the second recording medium 2 of the composite recording medium 3 passes through the bent portion 50a of the transport path 50, the outer guide member 22 of the bent portion 50a is separated from the composite recording medium 3. Therefore, it is possible to prevent the second recording medium 2 having higher rigidity than the first recording medium 1 from interfering with the transport path 50 and being damaged or clogged in the transport path 50.

In the above-described embodiment, the second recording medium 2 has been described as a bent portion which is damaged during transport due to a change in the transport direction, and is a bent portion of approximately 90 degrees. However, the present invention is not limited to this. It goes without saying that the present invention can be applied to a bent portion of any angle as long as the bent portion causes such a problem.

FIG. 11 shows another embodiment of a mechanical stress prevention measure at the time of transporting a medium, in which a pair of transport rollers 2 is provided by a transport roller separating / contacting mechanism.
The conveying roller of the side facing the second recording medium 2 of the Nos. 5 and 26 is separated to the outside.

That is, when the composite recording medium 3 is conveyed from the medium cassettes 51 to 53 (FIG. 1) to the conveying path 50 and the front end of the composite recording medium 3 is detected by the medium detecting sensor 21, the second recording medium 2 Since the position of the composite recording medium 3 on the composite recording medium 3 is determined in advance, a predetermined time elapses after the leading edge of the composite recording medium 3 is detected (FIG. 11A), and a pair of conveyance roller separating / connecting mechanisms, which will be described later, cause a pair of Transport rollers 25, 2
The conveying roller on the side facing the second recording medium 2 out of 6 is separated (FIG. 11B). Then, after a predetermined time has passed after the separation, the second recording medium 2 passes between the conveying rollers 25 and 26, and then is pressed again in preparation for the conveyance of the next medium.

FIG. 12 shows a transport roller separating / contacting mechanism which realizes the operation shown in FIG. The transport roller separating / contacting mechanism has a support shaft 29 whose one end is fixed to the digital copying machine 30 side.
An arm 27 rotatably supported by the arm 27 and an arm drive device (a linear actuator such as a solenoid) 28 connected to the other end of the arm 27. Transport roller 26
Is rotatably supported at a substantially middle portion of the arm 27,
When the arm driving device 28 is contracted from the state shown in FIG. 12A, the arm 27 swings in the direction of arrow E as shown in FIG. 12B, and one conveying roller 26 is moved to the other conveying roller. Away from 25. Then, the arm drive device 28
Is extended, the arm 27 swings in the direction of arrow F,
It returns to the state of FIG.

As described above, when the area of the second recording medium 2 of the composite recording medium 3 passes between the conveying rollers 25 and 26, the pressure contact between the conveying rollers 25 and 26 is released and the composite recording medium 3 is conveyed from the second recording medium 2. By separating the roller 26, it is possible to prevent the second recording medium 2 from being mechanically stressed by the pressure contact force, and to prevent the second recording medium 2 from being worn or damaged due to the contact with the transport roller 26. 2 It is possible to prevent abrasion and damage of the transport roller 26 due to contact with the recording medium 2.

Next, with reference to FIG. 13, a description will be given of measures for preventing the electrical stress that the composite recording medium 3 receives during transfer, the stress due to contact, and the like.

In FIG. 13A, when the composite recording medium 3 is conveyed from the carrying path 50 to the feeding section 33 (FIG. 1) and is conveyed to the transfer position, it is provided in the vicinity of the upstream of the transfer area R. The front end of the composite recording medium 3 is detected by the medium detection sensor 64. Since the position of the second recording medium 2 on the composite recording medium 3 is determined in advance, after a predetermined time has elapsed since the leading edge of the composite recording medium 3 was detected, as shown in FIG. The medium guides 62a and 62b before and after the transfer area R are swung in the direction of separating from the photoconductor drum 48a to separate the composite recording medium 3 from the photoconductor drum 48a.

The transfer roller 61 is supported by the tip of a swing arm 81 that swings about a support shaft 82a.
The medium guides 62a and 62b have support shafts 82b and 8 respectively.
It is swingably provided with 2c as a fulcrum. A drive device (a linear actuator such as a solenoid) 80 is provided on each of the swing arm 81 and the medium guides 62a and 62b.
a, 80b, 80c are connected to each other, and the transfer rollers 61 and the medium guides 62a, 62b are simultaneously moved in the direction in which they are separated from the photoconductor drum 48a by shortening the driving devices 80a, 80b, 80c simultaneously. Can be made.

Then, after the transfer roller 61 and the medium guides 62a and 62b are separated from the photosensitive drum 48a, a predetermined time has passed, and after the second recording medium 2 has passed the transfer area R, the driving devices 80a, 80b and 80c. To stretch. As a result, the transfer roller 61 and the medium guides 62a, 6a and 6a are prepared again for the image forming process for the next recording medium.
2b can be brought close to the photosensitive drum 48a.

As described above, when the area of the second recording medium 2 of the composite recording medium 3 passes through the transfer area R, the transfer roller 61
And the medium guides 62a and 62b to the photosensitive drum 48a.
By separating the composite recording medium 3 from the photoconductor drum 48a, the electrical stress on the second recording medium 2 is prevented, and the second recording medium 2 is abraded by the toner due to the contact with the photoconductor drum 48a. In addition to preventing damage, the photosensitive drum 48 due to contact with the second recording medium 2
It is possible to prevent abrasion and damage of the surface.

Further, in FIG. 13B, reference numeral 67 is a charged area of the photosensitive drum 48a, and reference numeral 68 is an uncharged area. As shown, the area of the second recording medium 2 of the composite recording medium 3 is By controlling so as to pass through the non-charged area of the photosensitive drum 48a, it is possible to more effectively prevent electrical stress from being applied to the second recording medium 2. However, in the case of reversal development, black solid is formed in the non-charged area 68 on the photosensitive drum 48a, so that the developing bias of the developing device 47 is changed so that the toner is not attracted to the photosensitive drum 48a. Need to control.

When the area of the second recording medium 2 of the composite recording medium 3 passes through the transfer area R, a switch 66 between the transfer roller 61 and the transfer power source 65, as shown in FIG. 13B. Is turned off and the current supply to the transfer roller 61 is cut off, whereby electrical stress on the second recording medium 2 can be more effectively prevented.

The transfer roller 61 and the medium guides 62a and 62b are separated from the photoconductor drum 48a as a measure for preventing the electric stress and the stress due to the contact which are received during the transfer.
It goes without saying that they may be separated from the medium guides 62a and 62b, or may be separated from each other.

FIG. 14 shows another example of measures for preventing electrical stress during transfer of the composite recording medium 3. That is, the second recording medium 2 on the composite recording medium 3 is
Transfer area R, that is, the photosensitive drum 48a and the transfer roller 6
1 so that the composite recording medium 3 passes through the outside of the pressure contact portion with 1.
The width dimension of the first recording medium 1 in the direction orthogonal to the transport direction is made larger than that of the recording medium normally used in the copying machine.
The second recording medium 2 is provided in a region that does not interfere with the upper photosensitive drum 48a and the transfer roller 61.

In this way, the composite recording medium 3 is transferred to the transfer area R.
By passing the area of the second recording medium 2 outside the transfer area R when passing the recording medium R, the electrical stress to the second recording medium 2 is prevented and the contact with the photosensitive drum 48a is made. The second recording medium 2 is prevented from being worn and damaged due to the contact between the second recording medium 2 and the photosensitive drum 48a.
Surface wear and damage can be prevented.

Next, with reference to FIG. 15 and FIG. 16, a mechanical stress preventing measure at the time of post-processing of the composite recording medium 3 will be described.

As shown in FIG. 15, the post-processing device 34 is
The stapler 353, that is, the placement tray 358 on which a plurality of stapling recording media are placed in an overlapping manner, and the transport path of the recording medium sent from the copying basic body are discharged as they are on the placement tray 358 side or without post-processing. Route 35
Switching gate 354 for switching to any one of 1 and pressing plate 3 for suppressing disturbance of the recording medium on mounting tray 358.
55, a leading end gate 356 that defines the leading end position of the recording medium during the post-processing in the transport direction, and rotates after the post-processing so that the bundle of recording media can be transported to the medium discharge tray 342, and a plurality of transport rollers 352. Consists of.

As shown in FIG. 16, a stapler 353 is provided.
Is configured to be capable of reciprocating in a direction (arrow D direction in the drawing) orthogonal to the sheet conveying direction, and is configured so that the binding position 358 for the recording medium can be changed to an arbitrary position. The stapler 353 is drive-controlled by a controller (not shown). The position of the second storage medium 2 on the composite recording medium 3 is stored in advance in the control device of the stapler 353, and the position of the stapler 353 is controlled so that the binding position does not become the same position as the second recording medium 2.
Stable processing is performed at each position.

FIG. 16 exemplifies a case where there are two closed positions. In this case, first, the stapler 353 is arranged at the first closed position where the second recording medium 2 does not exist to perform the binding process (FIG. 16A), and then the stapler 353 does not exist in the second recording medium 2. It is moved to the second binding position and binding processing is performed (FIG. 16B). As a result, the second
The composite recording medium 3 is closed at two places so as to avoid the recording medium 2 (FIG. 16C).

Further, as shown in FIG. 15, the post-processing device 3
Writing devices 357 for writing information on the second recording medium 2 are provided above the medium discharge trays 341 and 342 of FIG. 4, respectively, and are affected by mechanical, thermal or electrical stress in the process of image forming processing. Therefore, the information writing process to the second recording medium 2 can be performed after the completion of the image forming process and the post-process so as not to receive the information.

The writing device 357, depending on the characteristics of the second recording medium 2, may be, for example, a radio wave (ultra long wave, long wave, medium wave, short wave, ultra short wave, ultra short wave (including microwave)).
Etc.), information is written in the second recording medium 2 by using any non-contact means such as light or magnetism.

As described above, by enabling the writing process of information to the second recording medium 2 after completion of the image forming process and the post-process, mechanical, thermal or electrical stress in the process of the image forming process is obtained. Second without being affected by
Information can be surely written in the recording medium 2 of FIG.

Further, in FIG. 15, the writing device 35
If an information confirmation device for confirming the information written in the second recording medium 2 is arranged instead of 7, the confirmation process of the information written in the second recording medium 2 is performed after the completion of the image forming process. Therefore, even if the information held in the second recording medium 2 is lost due to mechanical, thermal or electrical stress in the course of the image forming process, it can be confirmed.

The information confirmation device may be, for example, radio wave (ultra long wave, long wave, medium wave, short wave, ultra short wave, ultra short wave (including microwave), etc.), light, depending on the characteristics of the second recording medium 2.
Second recording medium 2 using any non-contact means such as magnetism
Confirm the information with.

Although the above description is for the electrophotographic image forming apparatus, the problem of various stresses on the second recording medium 2 of the composite recording medium 3 is not limited to the electrophotographic image forming apparatus, and the inkjet recording method is not limited to the inkjet recording apparatus. This also occurs in image forming apparatuses of other methods such as the method.

FIG. 17 is an overall perspective view of an ink jet printer which is a kind of image forming apparatus according to another embodiment of the present invention, and FIG. 18 is a sectional view thereof.

As shown in the figure, the ink jet printer 70 includes a print head 71, a feeding device 73 (FIG. 18) for feeding a recording medium to a print area of the print head 71.
Ejecting roller 78 for ejecting the recording medium after printing (FIG. 18)
It has and.

The print head 71 is scanned (reciprocated) along a guide shaft 71a extending in a direction orthogonal to the feeding direction of the recording medium.

The feeding device 73 comprises a medium tray 72, a feeding roller 74, a separation pad 75, a guide plate 76, a medium detecting sensor 79 and the like.

In FIG. 17, reference numeral L1 is the total width L1 of the composite recording medium 3, and when the composite recording medium 3 is used,
The print head 71 is scanned over the entire width L1 of the composite recording medium 3 in the area where the second recording medium 2 is not located, and within the range L2 in the area where the second recording medium 2 is located excluding the area where the second recording medium 2 is located. Scanned in. Since the position of the second recording medium 2 on the composite recording medium 3 is determined in advance, the medium detection sensor 79 detects the front end of the composite recording medium 3, and the second recording medium 2 scans the print head 71. This can be realized by performing control to switch the scanning width of the print head 71 from L1 to L2 before reaching the portion. Then, when the second recording medium 2 is conveyed to a position where it does not interfere with the print head 71, the scanning width of the print head 71 is switched to L1 again.

As described above, when the second recording medium 2 passes through the reciprocating movable area of the print head 71, the print head 71
Is moved in an area other than the passage area 2a of the second recording medium 2 so as to prevent the second recording medium 2 from being damaged by the contact with the print head 71 and to contact the second recording medium 2. It is possible to prevent the print head 71 from being damaged.

As shown in FIG. 19, the feeding roller 74 comprises a plurality of rollers (rotating bodies) 74a arranged side by side on one shaft 74b and held thereby. These plural rollers 74a
Is used for printing on the composite recording medium 3
Second recording medium passage area 2 through which the second recording medium 2 passes
It is arranged so as to abut on a region other than a.

As described above, the contact area of the roller 74a with respect to the composite recording medium 3 is set outside the passage area 2a of the second recording medium 2 so that the roller 74a comes into contact with the second recording medium 2. A feeding roller 74 that prevents mechanical stress and is brought into contact with the second recording medium 2
It is possible to prevent wear and damage.

The roller 74 is used for mechanical reasons.
If the arrangement of a cannot be arranged as described above, the roller 7
It is desirable to use the composite recording medium 3 in which the position of the second recording medium 2 is set so as not to interfere with 4a.

[0118]

As described above, according to the present invention, mechanical stress, thermal stress and electrical stress are applied to the second recording medium during the image forming process of the first recording medium of the composite recording medium. To prevent the second recording medium from being worn or damaged, the information written in the second recording medium to be lost, or the second recording medium to be functionally deteriorated or damaged. Can be prevented.

[Brief description of drawings]

FIG. 1 is an internal perspective front view showing a configuration of a digital copying machine 30 which is a type of an image forming apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view showing a configuration example of a composite recording medium 3 according to an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a thermal stress prevention measure at the time of fixing processing according to the embodiment of the present invention, in which the front end of the composite recording medium 3 is the medium detection sensor 1 before the fixing device.
It is explanatory drawing which shows the state detected by 0.

FIG. 4 is an explanatory diagram of a thermal stress prevention measure during fixing processing according to the embodiment of the present invention, in which the composite recording medium 3 is provided at a nip portion between the heating roller 49a and the pressure roller 49b of the fixing device 49. It is explanatory drawing which shows the state entered.

FIG. 5 is an explanatory diagram of a thermal stress prevention measure at the time of fixing processing according to the embodiment of the present invention, in which the second recording medium 2 of the composite recording medium 3 is the heating roller 49a and the pressure roller of the fixing device 49. It is explanatory drawing which shows the state which passes the nip part with 49b.

FIG. 6 is a schematic view showing the configuration and operation of the heating roller interval changing mechanism according to the embodiment of the present invention, in which (a) is a state in which the heating roller 49a is in pressure contact with the pressure roller 49b,
(B) is an explanatory view showing a state in which the heating roller 49a is separated from the pressure roller 49b.

FIG. 7 is a perspective view of a principal part showing another embodiment of the measure for preventing thermal stress during the fixing process according to the embodiment of the present invention.

FIG. 8 is an explanatory diagram of a mechanical stress prevention measure during medium transportation according to the embodiment of the present invention, showing a state where the first recording medium 1 of the composite recording medium 3 is passing through a transportation region of high curvature. It is an explanatory view shown.

FIG. 9 is an explanatory diagram of mechanical stress when a medium is conveyed, and is an explanatory diagram showing a state in which the second recording medium 2 of the composite recording medium interferes with the outer guide member 22 in the conveyance region of high curvature. .

FIG. 10 is an explanatory diagram of a mechanical stress prevention measure during medium conveyance according to the embodiment of the present invention, in which the outer guide member 22 in the conveyance region of high curvature swings outward,
6 is an explanatory diagram showing a state in which the composite recording medium 1 has been moved to a position where it does not interfere with the composite recording medium 1. FIG.

FIG. 11 is another explanatory diagram of a mechanical stress prevention measure during medium conveyance according to the embodiment of the present invention, in which (a) is a pair of conveyance rollers 2 provided in a conveyance path.
5 and 26 are explanatory views showing a state in which they are in pressure contact with each other, and (b) is a state in which the transport rollers 25 and 26 are separated from each other.

FIG. 12 is a schematic view showing the structure and operation of the transport roller separating mechanism according to the embodiment of the present invention, in which (a) is a state in which a pair of transport rollers 25, 26 are in pressure contact with each other;
FIG. 7B is an explanatory diagram showing a state where the transport rollers 25 and 26 are separated from each other.

FIG. 13 is an explanatory diagram illustrating a measure for preventing electrical stress during transfer according to the embodiment of the present invention.
(A) shows a state in which the transfer roller 61 is close to the photosensitive drum 48a, and (b) shows the transfer roller 91 in the photosensitive drum 48a.
It is explanatory drawing which shows the state spaced apart from.

FIG. 14 is a perspective view of a principal part showing another embodiment of the measure for preventing electrical stress during transfer according to the embodiment of the present invention.

FIG. 15 is a cross-sectional view showing an internal configuration example of a post-processing device according to an embodiment of the present invention.

16 (a) to 16 (c) are explanatory views of a post-treatment process in the post-treatment device according to the embodiment of the present invention.

FIG. 17 is an overall perspective view of an inkjet printer 70 which is a type of image forming apparatus according to an embodiment of the present invention.

18 is a cross-sectional view of the inkjet printer 70 shown in FIG.

FIG. 19 is an explanatory diagram of a mechanical stress prevention measure during medium conveyance according to the embodiment of the present invention, in which a roller 74a, a second storage medium 2, and a second recording medium passage area 2 are shown.
It is an explanatory view showing an example of arrangement of a.

[Explanation of symbols]

1 First recording medium 2 Second recording medium 2a Second recording medium passage area 3 Multifunction device recording medium 22 Outer guide member 25, 26 transport rollers 30 digital copiers 33 Feeding Department 34 Aftertreatment device 47 developing device 48 Electrophotographic process department 48a photoconductor drum 61 transfer roller 49a Heating roller 49b Pressure roller 49 Fixing device 50 transport paths 58 charger 65 Transfer power supply 67 Charged area 68 Non-charged area 70 Inkjet printer 71 print head 74a roller 78 discharge roller 79 Media detection sensor 353 stapler 357 writing device R transcription area

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) G03G 15/00 534 G03G 15/16 103 3F101 15/16 103 15/20 107 3F108 15/20 107 21/00 372 F-term (reference) 2H027 DA38 DC04 DC05 DC08 ED16 ED24 ED25 EE02 EE08 2H033 AA45 BB12 BB18 BB30 BB35 CA22 CA39 2H072 AA07 AA16 AA22 CA01 GA02 GA08 HA01 JA02 2H200 GA01 GA23 GA34 GA44 GB12 GB25 HA02 HB12 HB21 JA02 JA29 JB10 JB12 JB17 JB18 LA17 PA03 PA13 PB12 3F049 AA10 DA12 DB04 EA28 LA01 LB03 3F101 FE02 FE11 LA01 LB03 3F108 GA01 GB01 HA02 HA32 HA43

Claims (14)

[Claims] 1. A sheet-shaped first for enabling image formation
A fixing unit for fixing the image on the first recording medium by passing a composite recording medium, which integrally includes a recording medium and a second recording medium capable of writing and reading information, between the heating member and the supporting member. When the first recording medium passes through the fixing section, the heating member and the pressing member have a first spacing, and when the second recording medium passes through the fixing section, An image forming apparatus for a composite recording medium, wherein an interval between the heating member and the pressing member is changed to a second interval which is larger than the first interval. 2. A sheet-shaped first type which enables image formation.
An image forming unit for forming an image on a first recording medium of a composite recording medium, which integrally includes a recording medium and a second recording medium that has a rigidity higher than that of the first recording medium and is capable of writing and reading information. A curved transport path that contacts the wall surface when the second recording medium changes its transport direction, and the curved transport path has a movable curved transport path wall surface that faces the second recording medium, When the second recording medium passes through the curved conveyance path,
An image forming apparatus for a composite recording medium which moves the wall surface of the curved conveyance path in a direction away from the second recording medium. 3. A sheet-shaped first type which enables image formation.
The composite recording medium is provided with a pressing unit that conveys the composite recording medium integrally provided with the recording medium and the second recording medium in which information can be written and read while passing between the pressure contact facing members. An image forming apparatus for a composite recording medium, in which the second recording medium passes outside between the pressure contact facing members when passing through the section. 4. A sheet-shaped first type which enables image formation.
The toner image formed on the toner image carrier is transferred onto the first recording medium of the composite recording medium, which is integrally provided with the recording medium and the second recording medium capable of writing and reading information, by an electric attraction action. An image forming apparatus for a composite recording medium which has a transfer section and separates the composite recording medium from the toner image carrier when the second recording medium of the composite recording medium passes through the transfer section. 5. A first sheet-shaped member that enables image formation.
The toner image formed on the toner image carrier is transferred onto the first recording medium of the composite recording medium, which is integrally provided with the recording medium and the second recording medium capable of writing and reading information, by an electric attraction action. An image forming apparatus for a composite recording medium, comprising a transfer section, wherein the second recording medium passes through an uncharged area of the toner image carrier when the composite recording medium passes through the transfer section. 6. The image formation on the composite recording medium according to claim 4, wherein when the second recording medium passes through the transfer area, the current supply for transferring is cut off. apparatus. 7. A sheet-shaped first type which enables image formation.
The toner image formed on the toner image carrier is transferred onto the first recording medium of the composite recording medium, which is integrally provided with the recording medium and the second recording medium capable of writing and reading information, by an electric attraction action. An image forming apparatus for a composite recording medium, comprising a transfer section, wherein the second recording medium passes outside the transfer section. 8. A first sheet-shaped member for enabling image formation
After the image forming process on the first recording medium of the composite recording medium in which the recording medium and the second recording medium capable of writing / reading information are integrally provided, the area where the second recording medium does not exist is printed. An image forming apparatus for a composite recording medium, which comprises a post-processing device for performing processing. 9. The post-processing device stores a storage unit that stores an existing region of the second recording medium on the composite recording medium, and a storage unit that stores the existing region of the second recording medium stored in the storage unit. 9. The image forming apparatus for a composite recording medium according to claim 8, further comprising a control unit that controls the post-processing mechanism so as to exclude the post-processing region. 10. An image forming unit for performing an image forming process on a composite recording medium, which integrally includes a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information, and An information writing unit for writing information on a second recording medium; and the information writing unit includes an image on the composite recording medium provided in a conveyance path or an ejecting unit of the composite recording medium after the image forming process is completed. Forming equipment. 11. An image forming unit for performing an image forming process on a composite recording medium, which integrally comprises a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information, and An information confirming unit for confirming information written on the second recording medium, wherein the information confirming unit is provided in the transport path or the ejecting unit of the complex recording medium after the image forming process is completed. Image forming apparatus for medium. 12. A composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing and reading information are integrally provided, and at least a pair of conveyances which rotate in pressure contact with each other. While transporting between the rollers,
An image forming unit for forming an image on the first recording medium, and when the second recording medium passes between the conveying rollers, the pressure contact between the conveying rollers is released, and the second recording medium Image forming apparatus for forming a composite recording medium that separates the conveying roller from the sheet. 13. A composite recording medium in which a sheet-shaped first recording medium capable of image formation and a second recording medium capable of writing and reading information are integrally provided while being conveyed by contact with a rotating body. An image forming apparatus for a composite recording medium, comprising an image forming unit for forming an image on a first recording medium, wherein a contact area of the rotating body with respect to the composite recording medium is outside a passage area of the second recording medium. 14. A composite recording medium in which a sheet-shaped first recording medium capable of forming an image and a second recording medium capable of writing / reading information are integrally provided, while conveying the composite recording medium. An image forming unit that forms an image on the first recording medium by using a print head that reciprocates in a direction orthogonal to the second recording medium when the second recording medium passes through a reciprocating movable area of the print head. Is an image forming apparatus for a composite recording medium, in which the print head is moved in a region other than the passage region of the second recording medium.