JP5671974B2 - CREATING DEVICE, PAPER PROCESSING DEVICE, IMAGE FORMING DEVICE, AND IMAGE FORMING SYSTEM - Google Patents

Description

  The present invention relates to a scoring apparatus, a sheet post-processing apparatus, an image forming apparatus, and an image forming system.

If folding is performed on a sheet after image formation, sufficient creases may not be formed or images may be peeled off at the folds.
For this reason, a method of making a crease in the fold portion in advance before performing the folding process is already known (see, for example, Patent Document 1).

  The invention described in Patent Document 1 operates the scoring member with different movement timings by a plurality of individual advance / retreat mechanisms for the purpose of performing creasing while reducing the amount of pressing by the scoring member. In the sheet conveyance after the creasing process, the sheet is discharged to the processing tray by the conveying unit, and the saddle stitching and folding processes are performed.

  However, the conventional folding process and the method of adding a crease have a problem that the image of the crease peels off due to the influence of the temperature, humidity, paper temperature, moisture content, and the like.

  Accordingly, an object of the present invention is to provide a scoring device, a paper post-processing device, an image forming device, which can be folded without image peeling without being affected by temperature, humidity, paper temperature, moisture content, and the like. And providing an image forming system.

In order to solve the above-mentioned problem, the invention according to claim 1 is a sheet temperature / humidity detecting means for detecting the temperature / humidity of the conveyed sheet, an apparatus internal temperature / humidity detecting means for detecting the temperature / humidity inside the apparatus, and the sheet. Component temperature detecting means for detecting the temperature of a component in contact with the paper, paper warming means for warming the paper to adjust the humidity, in-device warming means for warming the inside of the device, and the paper The warming of the paper so as to maintain the optimum temperature and humidity conditions with reference to temperature heating and humidity information detected by the temperature and humidity detection means, and the component heating means for heating the convex blade and the concave blade as the parts to be contacted And a control means for controlling the component heating means and the component heating means.

  According to the present invention, a scoring device, a paper post-processing device, an image forming device, and an image that can be folded without image peeling without being affected by temperature, humidity, paper temperature, moisture content, and the like. Provision of a forming system can be realized.

(A)-(d) is a figure explaining the creasing operation | movement of the creasing apparatus of this invention. (A) is a front view for demonstrating the internal structure of a scoring apparatus, FIG.2 (b) is a left view of Fig.2 (a). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b). It is explanatory drawing for demonstrating the structure of the heater arrangement | positioning inside a creasing apparatus. It is an example of the flowchart for demonstrating operation | movement of a heater. 1 is a conceptual diagram showing a practical form of an image forming apparatus using a scoring device and a paper processing device according to the present invention. 1 is a conceptual diagram showing an embodiment of an image forming system according to the present invention.

<Overview>
The present invention has the following features in the process of making a streak before performing the folding process.
In short, by heating the paper or the part that contacts the paper with a heater or blowing warm air before folding or streaking, the paper is conditioned and the toner becomes soft and the image is difficult to peel off. It is characterized by.

<Screase operation>
FIGS. 1A to 1D are diagrams for explaining the creasing operation of the creasing device of the present invention.

  The creasing apparatus includes a transport mechanism A and a creasing mechanism C. The scoring mechanism C is a scoring position in the transport path of the paper P, and is disposed directly below the transport path so as to sandwich the concave blade C2 disposed upward directly below the transport path and the tip of the concave blade C2. The lower guide plate C4a having the left-right inverted Γ-shaped cross-section, the lower guide plate C4b having the Γ-shaped cross-section, and parallel to the horizontal portion of the lower guide plate C4a and disposed at a predetermined height above the lower guide plate C4a. The upper guide plate C3a, the upper guide plate C3b arranged in a predetermined height above the lower guide plate C4b, parallel to the horizontal portion of the lower guide plate C4b, and directly above the concave blade C2, From the standby position above the upper guide plates C3a and C3b to the concave blade C2 (bottom dead center), it is disposed so as to be movable up and down by a lifting mechanism not shown in the drawing, and has a convex blade C1 that meshes with the concave blade C2.

The transport mechanism A is disposed on the upstream side (right side in FIG. 1) of the creasing mechanism C, and includes a rotation mechanism A1 including a driving roller and a driven roller, and a downstream side (left side in FIG. 1) of the creasing mechanism C.
And a rotation mechanism A2 composed of a driving roller and a driven roller.

  The sheet P is conveyed by the conveyance mechanism A in the direction of the white arrow to the left so as to pass between the upper guide plates C3a and C3b and the lower guide plates C4a and C4b in the scoring device (FIG. 1A). .

When the paper P reaches the creasing position, the rotation mechanisms A1 and A2 are stopped and the conveyance is stopped (FIG. 1B).
At this time, the convex blade C1 stands by at a higher position (standby position) than the upper guide plate C3, thereby preventing the paper P from being caught on the tip of the convex blade C1. After the conveyance of the paper P is stopped, the convex blade C1 starts to descend in the downward white arrow direction (FIG. 1C).

  When the convex blade C1 reaches the lowest level (bottom dead center), the paper P is sandwiched between the convex blade C1 and the concave blade C2. At this time, the paper P can be streaked by applying pressure in the direction of the downward white arrow (FIG. 1D).

  After creasing, the convex blade C1 rises in the upward white arrow direction to the standby position, and after stopping, the conveyance of the paper P is resumed by the rotation mechanisms A1 and A2, and a post-processing machine such as a folding machine installed downstream of the creasing apparatus (Not shown) is conveyed (FIG. 1 (e)).

Fig.2 (a) is a front view for demonstrating the internal structure of a scoring apparatus, FIG.2 (b) is a left view of Fig.2 (a).
In the scoring device, a convex blade C1 for making a crease is vertically fixed to a horizontal portion of a U-shaped front-shaped guide frame C5 so that the blade tip faces downward.
Cam followers C6 are respectively installed at both ends of the guide frame C5, and both cam followers C6 are in contact with a pair of cams C7.
A circular (or elliptical) cam C7 is fixed to the shaft C8 at a position displaced from the center, and is connected to the output shaft C9a of the motor C9 via gears G1 and G2 fixed to the end of the shaft C8. .

  When the motor C9 is driven and the output shaft C9a is rotated, the cam C7 is rotated through the gears G1 and G2. The rotational movement of the cam C7 is converted into a vertical reciprocating movement by the cam follower C6, whereby the guide frame C5 and the convex blade C1 fixed to the guide frame C5 can be raised and lowered.

The guide frame C5 is provided with a guide shaft C10 penetrating therethrough, and the convex blade C1 can move up and down vertically along the guide shaft C10 in the conveying direction.
The guide shaft C10 is fixed to the concave blade C2 and the frame C11, and a coil spring C12 is incorporated in the guide shaft C10 between the frame C11 and the guide frame C5, which is necessary for creasing with the coil spring C12. Pressure can be generated.

<Paper post-processing device>
3-14 is explanatory drawing for demonstrating operation | movement of the paper post-processing apparatus provided with the scoring apparatus shown to Fig.2 (a), (b).
FIG. 3 shows a creasing mechanism C and a folding processing mechanism B that performs folding processing.
Here, the scoring device includes a transport mechanism A and a scoring mechanism C. The scoring mechanism C includes a scoring unit 6 and a cradle 7. Streak by pinching. Here, the transport mechanism A is 1, 2.
After the scoring is made by the scoring means A, the sheet is sent to the downstream folding processing mechanism B.
The folding processing mechanism B includes a conveying unit, a processing unit, a rear end fence, a folding roller, a folding unit, and the like. Here, it is assumed that the conveying means is constituted by 3 to 5, the processing unit 10, the rear end fence 11, the folding roller 9, the folding means 8, and the stacking means 12.

4 to 14 are explanatory diagrams for explaining a series of operations of the scoring apparatus and the sheet post-processing apparatus shown in FIG.
The sheet P1 is conveyed into the scoring device A and stops at the position where the scoring is made (see FIGS. 4 and 5).
A creasing is made by sandwiching the paper P1 between the creasing means 6 and the cradle 7 (see FIG. 6). Thereafter, the streaked paper P1 is conveyed to the folding mechanism B (see FIG. 7) and temporarily stored in the processing unit 10 (see FIG. 8).

  The above operation is repeated for a predetermined number of sheets (see FIG. 9). When a predetermined number of sheet bundles are stored (see FIG. 10), the sheet bundle is aligned with the folding position by the rear end fence 11 (see FIG. 11). Then, the crease formed on the sheet is pushed and pushed into the nip of the folding roller 9 to perform the folding process (FIG. 12). Then, the sheet bundle that has been folded into a booklet is sequentially stacked on the stacking means 12 (see FIGS. 13 and 14).

FIG. 15 is an explanatory diagram for explaining the configuration of the heater arrangement inside the scoring apparatus.
The paper P is conveyed between the upper guide plates C3a and C3b and the lower guide plates C4a and C4b in the scoring device by the rotation mechanisms A1 and A2.
The heater C5a warms the conveyed paper P and adjusts (humidifies) the temperature and humidity. Similarly, the blower C6 also adjusts the temperature and humidity by blowing warm air onto the paper P being conveyed. The conditioned paper P is conveyed in a state where it is maintained at a temperature and humidity optimum for creasing.

When the paper P reaches the creasing position, the rotation mechanisms A1 and A2 are stopped and the conveyance is stopped.
Heaters C5b and C5c as heating means warm the convex blade C1 and the concave blade C2 in advance, and keep the temperature optimal for creasing.
After the conveyance of the paper P is stopped, the convex blade C1 starts to descend.
When the convex blade C1 reaches the bottom dead center, the paper P is sandwiched between the concave blade C2. By applying pressure at this time, creasing can be performed under the optimum temperature and humidity conditions for the paper P.
The optimum temperature and humidity conditions for creasing change depending on the conditions such as paper type, paper thickness, coated paper, toner, etc., so that stable creasing can always be achieved by changing the setting each time.
Although not shown in the figure, it is possible to stably maintain the temperature of the paper and the contact portion by arranging the temperature sensor in each portion to feed back the temperature to the heater.

<Operation>
FIG. 16 is an example of a flowchart for explaining the operation of the heater.
The subject of the operation is a CPU (Central Processing Unit) described later.

The CPU (D1) determines whether or not there is a creasing process (step S1). If it is determined that there is a creasing process (step S1 / YES), the CPU (D1) drives the scoring process heater and proceeds to step S3. Proceeding (step S2), when it is determined that there is no creasing process (step S1 / NO), it is determined whether or not there is a folding process (step S6).
In step S3, the CPU (D1) determines whether or not the sheet temperature is equal to or higher than the set value. If the CPU (D1) determines that the sheet temperature is equal to or higher than the set value (step S3 / YES), the CPU (D1) stops the scoring processing heater ( Step S4) performs crease processing (step S5), and proceeds to step S6.

If the CPU (D1) determines in step S3 that the sheet temperature is not equal to or higher than the set value (step S3 / NO), the process returns to step S2.
When the CPU (D1) determines that the folding process is present (step S6 / YES), the CPU (D1) drives the folding process heater (step S7), and determines whether the sheet temperature is equal to or higher than the set value (step S8). ), When it is determined that there is no folding process (step S6 / NO), the process ends.

  If the CPU (D1) determines that the sheet temperature is equal to or higher than the set value (step S8 / YES), the CPU stops the folding process heater (step S9), performs the folding process (step S10), and ends the sheet. When it is determined that the temperature is not equal to or higher than the set value (step S8 / NO), the process returns to step S7.

  By these creasing and folding processes, the paper and the parts that come into contact with the paper are warmed with a heater, etc., or blown with warm air before the folding process or creases are made, so that the paper is conditioned and softened with toner. Therefore, it is difficult to peel off the image, so that the image can be folded without being affected by the temperature, humidity, paper temperature, moisture content, and the like.

<Image forming apparatus>
FIG. 17 is a conceptual diagram showing an actual form of the image forming apparatus using the creasing apparatus and the folding processing apparatus according to the present invention.
The image forming apparatus shown in the figure includes an image forming apparatus main body, an image reading apparatus 100, a creasing mechanism A, and a folding processing mechanism B.

  The image reading apparatus 100 shown in FIG. 1 includes a contact glass 101 on which a document 105 is mounted, a sheet-through reading window 102, a reference white plate 103 for white level adjustment and shading correction data generation, a light source 107 that irradiates the document 105, and a first light source 107. The first carriage 109 on which the mirror 108 is mounted, the second mirror 110, the second carriage 112 on which the third mirror 111 is mounted, and a home position sensor (hereinafter referred to as HPS) 117 provided for detecting the carriage position. , A lens unit 113 for reducing and forming an image on a CCD image sensor (hereinafter referred to as CCD) 114, an image reading circuit 115 on which a CCD 114 as a photoelectric conversion element is mounted, an image processing circuit 116, a first carriage 109, and a second carriage 112. Scanner driving motor and document sensor Composed of (e.g., see JP 2005-77520).

  In the above configuration, when the document 105 is mounted on the contact glass 101, the light source 107 is turned on, and the first carriage 109 and the second carriage 112 are rotated by a control signal from a control unit (not shown). By moving the light source 107, the light source 107 is turned on while the first carriage 109 and the second carriage 112 are stopped. A method of reading the document image information by irradiating the other document 106 conveyed by the document conveying device 104 via 102 can be selected.

  When scanning the first carriage 109 and reading the document 105, the data of the reference white plate 103 is acquired and the shading correction data is generated and stored in the memory before reading the document 105, and the shading correction data is stored. Thus, by normalizing the image data of the document 105, the light distribution unevenness and the CCD sensitivity unevenness in the image reading device are corrected, and the image information of the document 105 is read with high quality.

The image data subjected to the shading correction process is output to an image processing unit (not shown).
In the case of sheet-through reading where the original 106 is conveyed and the original image data is read while the first carriage 109 is stopped, the first carriage 109 is first placed under the reference white plate 103 prior to reading the original 106. It is moved to generate shading correction data, and after returning to the sheet-through reading position, the conveyance of the document is started and the document reading operation is started.

Next, the configuration of the image forming apparatus main body will be described with reference to FIG.
A neutralizing device L, a cleaning device 202, a charging device 203, and a developing device 205 are disposed on the outer periphery of the photosensitive member 201 that is rotatably supported and rotates in the direction of the arrow in FIG.

Between the charging device 203 and the developing device 205 on the outer periphery of the photoconductor 201, a space for allowing light information emitted from the exposure device 204 to enter is secured.
In the configuration shown in FIG. 17, there are four photoconductors 201 (201a, 201b, 201c, and 201d), but only the color of the color material (toner) handled by the developing device 205 is different, and the image provided on each outer peripheral portion. The component configuration described above for forming is the same.

  The photoconductor 201 is configured by providing an organic semiconductor layer, which is a photoconductive substance, on an aluminum cylindrical surface having a diameter of about 30 mm to 100 mm, and a part of the photoconductor 201 is an intermediate transfer belt (first visible image carrying means) 210. Is in contact with

  The intermediate transfer belt 210 is supported by rotating rollers 211, 212, 213, and 214, and is stretched so as to be movable in the direction of the arrow in FIG. On the back side of the intermediate transfer belt 210 (inside the loop), a roller 212 as a first transfer unit is provided in the vicinity of the photoconductor 201 to transfer a visible image on the photoconductor 201 to the intermediate transfer belt 210.

  On the outside of the belt loop of the intermediate transfer belt 210, the intermediate transfer belt cleaning is performed downstream of the position where the visible image is transferred from the intermediate transfer belt 210 to the paper P or the intermediate transfer belt for the back surface (second visible image carrying means) 200. A device 250 is provided. The brush of the cleaning device 250 wipes off unnecessary toner remaining on the surface of the belt after another visible image is transferred from the intermediate transfer belt 210.

FIG. 17 shows a state where the brush roller is separated from the front surface of the intermediate transfer belt 200 for the back surface. This brush roller is provided so as to be swingable about a fulcrum 250A, and is configured to be able to contact and separate from the surface of the intermediate transfer belt 200 for the back surface.
Before the toner image transferred from the intermediate transfer belt 210 is transferred to the paper P, that is, when the intermediate transfer belt for back surface 200 carries the toner image, the toner image is separated and transferred to the paper P for cleaning. When it becomes necessary, the brush roller is swung in the counterclockwise direction in FIG.
The removed unnecessary toner is collected in the toner storage unit 250B.

  The exposure device 204 uses a known laser system, and irradiates light information corresponding to full-color image formation on the surface of the uniformly charged photoreceptor 201 as a latent image. As the exposure device 204, an exposure device including an LED array and an image forming unit may be used.

  As described above, the photosensitive member 201, the cleaning device 202, the charging device 203, the exposure device 204, the developing device 205, the charge eliminating device L, and the first transfer unit 212 are added to the intermediate transfer belt 210. It functions as image forming means for generating a visible image (image with toner) to be transferred.

The intermediate transfer belt 210 is a belt based on a resin film or rubber having a base thickness of 50 μm to 600 μm, and has a resistance value that enables transfer of toner from the photoreceptor 211.
On the right side of FIG. 12 with respect to this intermediate transfer belt 210, a belt-like back surface intermediate transfer belt (second visible image carrying means) 200 is disposed. This intermediate transfer belt for back surface 200 is supported by rollers 216, 217, and 219, and is stretched so as to be movable in the direction of the arrow in FIG. 12. On the back side (inside the loop), a second transfer means 218 is provided. It is arranged. Outside the belt loop formed by the back surface intermediate transfer belt 200, the back surface intermediate transfer belt cleaning device 250, the charger CH, and the like are disposed.

  The intermediate transfer belt 210 and the back surface intermediate transfer belt 200 are brought into contact with each other by the second transfer means 218, rollers 216, 217, and 219, and the roller 214 that supports the intermediate transfer belt 210. Form a transfer nip.

  The intermediate transfer belt for back surface 200 is a belt having a base of a resin film or rubber having a base thickness of 50 μm to 600 μm, and has a resistance value that enables transfer of toner from the intermediate transfer belt 210.

The paper P is stored in paper feeders (paper cassettes) 226-1 and 226-2 in the lower part of FIG. 17, and the uppermost paper is registered by a paper feed roller 227 one by one through a plurality of guides 229. It is conveyed to the roller pair 228.
A fixing heating unit 230, a paper discharge guide pair 231, and a paper discharge roller pair 232 are disposed further downstream of the conveyance of the paper P.
A creasing device A is built in the downstream side of the paper discharge roller pair 232, and a folding processing mechanism B is arranged on the downstream side (left side in the figure) of the image forming apparatus.

  A storage unit TS that can store replenishment toner is provided above the intermediate transfer belt 210 and below the creasing mechanism A in FIG. There are four toner colors, magenta, cyan, yellow, and black, which are in the form of a cartridge TC. From the cartridge TC, the corresponding color developing device is appropriately supplied by a powder pump or the like.

  The frame 251 that is a part of the apparatus main body has a structure that can be rotated and opened around the opening / closing support shaft 251A. For this reason, the user can widen the conveyance path of the paper P by opening the frame 251 to facilitate the processing of the paper P when a jam occurs.

  Further, the image reading apparatus 100 shown in the upper part of the apparatus main body that performs image formation on the paper P described above is connected via a support unit, and the apparatus main body described above receives image data read by the image reading apparatus. By printing on P, the copying operation is enabled.

An operation / display unit (display means and input means) is provided on the outer periphery of the image reading apparatus. This operation / display unit includes various buttons such as a touch panel and numeric keys for notifying the user of various types of operation information by display and receiving operation inputs.
The user performs various operations such as one-side / double-side switching of a copy, start of a copy operation, setting of the number of copies, and switching between a copy function and a printer function by using the operation / input unit.

Next, an operation when performing double-sided printing with the image forming apparatus according to the present embodiment will be described.
First, an image is formed by the image forming means.
Due to the operation of the exposure device 204, light from an LD (Laser Diode) light source (not shown) passes through an optical component (not shown), and among the photoconductors 201 uniformly charged by the charging device 203, first, the light on the photoconductor 201a. Thus, a latent image corresponding to the writing information (information corresponding to the color) is formed.

The latent image on the photoconductor 201a is developed by the developing device 205, and a visible image of toner is formed and held on the surface of the photoconductor 201a. This toner image is transferred by the first transfer unit 212 to the surface of the intermediate transfer belt 210 that moves in synchronization with the photosensitive member 201a.
The remaining toner on the surface of the photoconductor 201a is cleaned by the cleaning device 202 and discharged by the charge removing device L to prepare for the next image forming cycle.

  The intermediate transfer belt 210 carries the toner image transferred on the surface and moves in the direction of the arrow in FIG. By the same operation as that of the photosensitive member 201a described above, a latent image corresponding to another color is written on the photosensitive member 201b, and developed with the toner of the corresponding color to form a visible image. This visible image is superimposed on the previous color visible image that has already been transferred to the intermediate transfer belt 210, and finally the four color visible images formed by the photoconductors 201a to 201d are superimposed.

At this time, the back surface intermediate transfer belt 200 is moved in the direction of the arrow in synchronism, and the visible image transferred to the surface of the intermediate transfer belt 210 is transferred to the surface of the back surface intermediate transfer belt 200 by the action of the second transfer means 220. Is transcribed.
As described above, in the image forming apparatus according to this embodiment, the intermediate transfer belt 210 and the back surface intermediate transfer belt 200 are transported and moved while the visible images are formed on the four photoconductors 201 in a so-called tandem format. Since image formation proceeds, the time required for the process of forming a visible image on the photoconductor 201 and transferring the image to the intermediate transfer belt 210 and the intermediate transfer belt 200 for the back surface can be shortened.

When the intermediate transfer belt 210 is transported to a predetermined position, the toner image to be transferred to the other surface (front surface) of the paper P is formed again by the image forming means in the above-described process, and feeding is started. The
When the paper feeding roller 227 rotates counterclockwise, the paper P at the top of the paper feeding devices (paper feeding cassettes) 226-1 and 226-2 is pulled out and conveyed to the registration roller pair 228.

The toner image on the surface of the intermediate transfer belt 210 is transferred to the second transfer means on one surface (front surface) of the paper P conveyed between the intermediate transfer belt 210 and the back surface intermediate transfer belt 200 through the registration roller pair 228. 220 is transferred.
Further, the sheet P is conveyed upward in FIG. 17, and the toner image on the surface of the intermediate transfer belt 200 for the back surface is transferred to the other surface (back surface) of the sheet P by the charger CH. At the time of transfer, the paper P is conveyed at a timing so that the position of the image is normal.

In this embodiment, the polarity of the toner imaged on the photoconductor 201 is negative. By applying a positive charge to the first transfer unit 212, the visible image (toner) formed on the photoconductor 201 is transferred to the intermediate transfer belt 210. Further, by applying a positive charge to the second transfer unit 219, the toner imaged on the intermediate transfer belt 210 is transferred to the back surface intermediate transfer belt 200.
As described above, after the toner on the surface of the intermediate transfer belt 210 is transferred to one surface (front surface) of the paper P, a negative polarity toner on the surface of the intermediate transfer belt 200 for the back surface is provided by applying a positive charge from the charger CH. Is sucked and transferred to the other side (back side) of the paper P.

  The sheet P on which the toner images are transferred on both sides by the above-described operation is sent to the fixing unit 230, and the toner images on both sides on the sheet P are melted and fixed at one time. By 232, it is discharged to the creasing device A at the upper part of the main body frame.

<Image forming system>
FIG. 18 is a conceptual diagram showing an embodiment of an image forming system according to the present invention.
The image forming system shown in FIG. 1 includes an image forming apparatus E and a plurality of personal computers (PCs) I1 to In connected by a network H.
The image forming apparatus D includes a CPU (E1), ROM (E2), RAM (E3), reading unit E4, I / O (E5), operation unit E6, display unit E7, printing unit E8, lined unit A, and The folding processing section B is connected by a bus line E9.
The CPU (E1) is a circuit that performs overall control of the image forming apparatus, and for example, a microprocessor is used.
A ROM (Read Only Memory: E2) is a circuit that stores a control program. For example, a mask ROM is used.
A RAM (Random Access Memory: E3) is a circuit for temporarily storing image data. For example, a static RAM is used.
The I / O (E5) is an interface for exchanging data with an external circuit, and for example, a USB connector is used.
The operation unit E6 is a circuit for operating the image forming apparatus, and includes a power switch, a numeric keypad, a start button, a stop button, a reset button, and the like.
The display unit E7 is a circuit that displays an operation state, the number of printed sheets, and the like, and for example, a liquid crystal display device is used.
The printing unit E7 is an apparatus necessary for printing such as the above-described photosensitive drum, charger, and toner provided in the image forming apparatus.

  Even in such a system, the paper and the part that contacts the paper are warmed with a heater or the like before the crease process or crease is made, or the warm air is blown to adjust the humidity of the paper and soften the toner. Since peeling becomes difficult, folding without image peeling can be performed without being affected by temperature, humidity, paper temperature, moisture content, and the like.

  The above-described embodiment shows an example of a preferred embodiment of the present invention, and the present invention is not limited thereto, and various modifications can be made without departing from the scope of the invention. is there.

1, 2 Transport mechanism A
3, 4, 5 Conveying means 6 Scoring means 7 Receiving base 8 Folding means 9 Folding roller 10 Processing section 11 Rear end fence 12 Loading means 100 Image reading device 101 Contact glass 102 Reading window for sheet through 103 Reference white plate 105 Document 107 Light source 108 1st mirror 109 1st carriage 110 2nd mirror 111 3rd mirror 112 2nd carriage 113 Lens unit 114 CCD
DESCRIPTION OF SYMBOLS 115 Image reading circuit 116 Image processing circuit 200 Back surface intermediate transfer belt 201, 201a, 201b, 201c, 201d Photoconductor 202 Cleaning device 203 Charging device 204 Exposure device 205 Development device 210 Intermediate transfer belt 211, 213, 214, 216, 217 219 Roller 212 First transfer means 218 Second transfer means 226-1, 266-2 Paper feed device (paper feed cassette)
227 Paper discharge roller 228 Registration roller pair 230 Fixing heating means 231 Paper discharge guide pair 232 Paper discharge roller pair A Transport mechanism A1, A2 Rotating mechanism B Folding mechanism C Streaking mechanism C1 Convex blade C2 Concave blade C3a, C3b Upper guide Plate C4a, C4b Lower guide plate C5 Guide frame C5a, C5b, C5c, C5d Heater C6 Cam follower C7 Cam C8 Shaft C9 Motor C9a Output shaft C10 Guide shaft C11 Frame C12 Coil spring C60 Blower E1 CPU
E2 ROM
E3 RAM
E4 reading section E5 I / O
E6 Operation section E7 Display section E8 Printing section G1, G2 Gear H Network I1-In Personal computer (PC)
L Static eliminator P Paper

JP 2009-166928 A

Claims (6)

Paper temperature and humidity detection means for detecting the temperature and humidity of the conveyed paper;
In-apparatus temperature and humidity detection means for detecting the temperature and humidity inside the apparatus,
Component temperature detection means for detecting the temperature of the component in contact with the paper;
Paper warming means for warming the paper to condition the humidity;
In-device heating means for heating the inside of the device to condition the humidity;
Component heating means for heating the convex blade and the concave blade as a component that contacts the paper,
With reference to temperature / humidity information detected by the temperature / humidity detection means, the paper heating means, the in-device warming means, and the component warming means are controlled so as to keep the paper in an optimal temperature / humidity condition. Control means;
A creasing device comprising:   The creasing apparatus according to claim 1, wherein the control unit determines ON / OFF of the in-apparatus heating unit based on the presence / absence of a creasing process and the presence / absence of a folding process.   The creasing apparatus according to claim 1, wherein the control unit performs temperature and humidity control according to paper type information, paper thickness information, and image information.   A sheet post-processing apparatus comprising the scoring device according to claim 1.   An image forming apparatus comprising the scoring device according to claim 1.   An image forming system comprising the scoring device according to claim 1.

Images