JPH0296779A - Image forming method - Google Patents

Abstract

PURPOSE:To prevent a solid from being copied in a blank of a specified area and to achieve a variety of marking operations by normally transferring a picture, then transferring the same picture on the same transfer surface and again transferring a picture that is partially or completely shifted in horizontal and vertical directions and marking them. CONSTITUTION:A paper supplied from a paper feeding part 7 is set to formed image fixing parts 2, 4...6, 9, 10, 13 and 14 to transfer and fix a 1st picture. Then, the paper is placed on an intermediate tray 11, and a paper incorporated therein is shifted horizontally and/or vertically with respect to the carrying direction, and sent to the formed image fixing parts 2, 4...6, 9, 10, 13 and 14, where a 2nd picture is transferred and fixed on the same surface as when the 1st picture is transferred. Consequently, the normal picture and the horizontally and/or vertically shifted picture are superposed and transferred, thereby creating marking effect.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to an image forming method for an image forming apparatus such as a photocopying machine, and particularly relates to an image forming method for an image forming apparatus such as a photocopier, and in particular to This article relates to a method for processing marks to make them stand out.

(B) Conventional technology Conventionally, when attempting to mark a part of an image by combining images using an image forming apparatus such as a copying machine, for example, it is possible to automatically mark a part of an image by combining two or more colors. When using a camera, specify area E in advance by trimming, masking, etc. as shown in Figure 13, and then change the color as shown in Figure 14. After performing a solid copy (filled with negative color) on the designated area copy surface as shown by diagonal lines, a normal copy is made on top of it in a different color to mark it.

(c) Problems to be solved by the invention However, in this case, only a certain range can be specified, so for example, it is difficult to mark images at different positions on the same sheet of paper at the same time. is not possible, and when marking is performed using RFI, which specifies the area to be marked using diagonal lines of a rectangle, the upper left corner and the lower right corner R should be marked as shown in Figure 15. In order to specify two points, in reality, in the diagram,
Even when it is desired to mark only the shaded area A, it may happen that area B, which is not the shaded area, is also marked.

The present invention has been made taking these circumstances into consideration, and therefore provides an image forming apparatus that can mechanically shift the paper onto which an image is transferred, such as Natsushashi, in the vertical and horizontal directions. An image forming method in which mark processing is performed by first performing normal transfer using a , and then variably transferring an image shifted in the vertical or horizontal direction onto the same transfer surface as the normally transferred image. I am offering this.

(d) Means for Solving the Problems The image forming method of the present invention includes a paper feeding unit that supplies paper;
An image forming and fixing unit that transfers and fixes the image onto the supplied paper, an intermediate tray that temporarily stores the paper that has passed through the image forming and fixing unit to send it to the image forming and fixing unit again, and an image forming and fixing unit that transfers the image from the intermediate tray to the image forming and fixing unit. The paper fed to the
Alternatively, using an image forming apparatus equipped with a shifting means for shifting in the horizontal direction, first, the paper supplied from the paper feeding section is sent to the image forming and fixing section, the first image is transferred and fixed, and then the paper is The paper stored in the intermediate tray is then shifted vertically and/or horizontally with respect to the conveying direction and sent to the image forming and fixing section to transfer the first image to the surface. The second image is transferred and fixed on the same surface as the second image.

(E) Function According to the present invention, the paper on which the first image has been transferred and fixed is shifted in the vertical and/or horizontal direction with respect to the conveying direction and sent once again to the image forming and fixing section. Since the second image is transferred again to the same surface as the first image, there are two types of images: a normal image and one that is shifted vertically and/or horizontally with respect to the transport direction. Alternatively, images shifted in the horizontal direction may be transferred in an overlapping manner, thereby creating a mark effect.

(f) Examples Hereinafter, the present invention will be described in detail based on examples shown in the drawings. Note that this invention is not limited to this.

1 and 2 are flowcharts showing an example of the image forming method of the present invention, and FIG. 3 is an explanatory diagram showing the internal structure of a photocopying machine as an image forming apparatus used for carrying out the method.

In FIG. 3, l is a document placing table on which a document is placed;
is the reflected light from the document exposed and scanned by lamp 3 (in the figure,
- a photoreceptor drum on which an electrostatic latent image is formed (as shown by point mic); 4 is a first developer storing a first toner; 5 is a second developer storing a second toner of a different color from the first toner; a developer, and these first toners (e.g., black toner)
The first and second toners (for example, red toner) make it possible to perform two-color copying.

6 is a blank lamp, and when an area is specified for trimming, an area other than the specified area,
When areas are designated by masking, static electricity is removed from each designated area. 7 is a paper feed unit equipped with a paper feed cassette that accommodates paper of various sizes; 8 is a transport roller;
9 is a registration roller.

When the paper is fed from the paper feed section 7 or an intermediate tray (to be described later), the registration roller 9 temporarily stops the paper so that the toner on the photoreceptor drum 2 can be properly transferred to the paper, and the registration roller 9 stops the paper temporarily and moves the photoreceptor drum 2. At a predetermined timing that matches the rotation, a clutch is engaged, the rotation starts, and the paper is sent out. Reference numeral 10 denotes a right edge before registration for confirming that the paper has been fed to the registration rollers 9.

Reference numeral 11 denotes an intermediate tray that temporarily stores the transferred paper in order to send the transferred paper to the photoconductor drum 2 again.The paper is moved horizontally to the right or left with respect to the transport direction by a mechanism described later. It is possible to do so.

Reference numeral 12 denotes an intermediate tray feed roller that feeds the paper stored in the intermediate tray 11 to the photoreceptor drum 2; 13 a conveyor belt that conveys the transferred paper to the fixing section 14; 1st゜Second developer 4.5, blank lamp 6, registration roller 9, pre-registration switch 10
, the conveyor belt 13, and the fixing section 14 constitute an image forming and fixing section that transfers and fixes an image onto a sheet of paper.

15. 16 and 17 are the transferred paper in the intermediate tray! l
A conveying roller 18 is used to convey the copied paper to the printer, and a paper discharge unit 18 is the paper discharge unit from which the copied paper is finally discharged.

The paper fed from the paper feed section 7 passes through a conveyance roller 8, stops once in front of a registration roller 9, is conveyed in accordance with the rotation timing of the photoreceptor drum 2, the image is transferred, and is fixed by a conveyance belt 13. section 14, and is further stored in the intermediate tray 11 via conveyance rollers 15, 16, and 17.

Then, the paper is conveyed again from the intermediate tray paper feed roller 12 to the registration roller 9, and after being transferred onto the same surface again by the photosensitive drum 2, it passes through the conveyance belt 13, the fixing section +4, and is finally discharged. It is discharged to section +8.

FIG. 4 is a perspective view of the top of the copying machine shown in FIG. 3.

As shown in the figure, a document holder 20 located on the document table 1 is provided with a tablet 22 for specifying an area for trimming or masking.

To specify the area for trimming or masking, place originals of various sizes on the tablet 22 with the original side facing up, specify the area with the Ben 2I, and then press the original holder 20.
By lifting the original and placing it on the original platen 1 and starting copying, you can copy areas other than the specified area for trimming, or the specified area for masking; , the corresponding area of the photoreceptor drum 2 is adapted to be neutralized by a blank lamp 6.

23 is an operation unit for performing various instruction operations.

FIG. 5 is a configuration explanatory diagram showing the configuration of the intermediate tray 11. As shown in FIG.

As shown in the figure, in the intermediate tray I+, a bent recess 28a is formed in the bottom plate 28, and left and right side regulating plates 291.29b are provided in the bent recess 28a to guide both sides of the paper fed in from the direction indicated by the arrow. It has a supported configuration.

The side regulation plates 29a, 29b are formed in an oval shape by substantially horizontal plane parts 30a, 30b on which the paper is placed, and side parts 31a, 31b rising from one end thereof.
They can be moved toward or away from each other in the transverse direction with respect to the paper conveyance direction.

ω-face i! On the mutually opposing surfaces of 31a and 31b, inclined plates 32a and 32b, which rotate according to the amount of paper stored when paper is stored on the flat parts 30a and 30b, are arranged around the folded parts 33a and 33b. It is provided so that it can be rotated.

A worm-shaped shaft 34 is passed through the bottom plate 28, and connects the stepping motor to the ζ filter intermediate tray hyperactive motor 3.
5 rotates the shaft 34 via the bevel gears 36 and 37, and it is possible to move the bottom plate 28 in the lateral direction of paper transport, that is, in the left and right directions with respect to the paper transport direction.

A pulse plate 38 in which a slit for transmitting light is formed is attached to the intermediate tray moving motor 35, and the rotation angle of the pulse plate 38 is detected by a photointerrupter 39.

Therefore, by controlling the rotation direction of the intermediate tray moving motor 35 and controlling its rotation angle by the photointerrupter 39, the intermediate tray can be moved! It is possible to arbitrarily control the left and right movement direction and movement distance of l.

Reference numeral 40 denotes a side regulating plate moving motor, which moves the side regulating plate 29a by a wire 41 based on the width of the paper in order to position the paper to be accommodated.

29b are moved closer to each other and separated from each other.

In addition, in FIG. 5, in order to make the diagram easier to read, when the intermediate tray 11 is moved to the left 1 side with respect to the paper conveyance direction, only the left side regulating plate 29a side is shown with a two-dot m line. When the paper is moved to the right with respect to the paper conveyance direction, the right side regulating plate 29b (only the
Indicated by a line.

FIG. 6 is a block diagram showing the control circuit of the copying machine shown in FIGS. 3-5.

The microcomputer 50 has a timer for time counting, operates according to a program stored in RO to 151, and stores data necessary for control in the RAM 521.
I am doing this so that I can remember it.

Microcomputer 50: When the tablet 22 inputs a signal specifying the static elimination area on the document, it outputs a single static elimination word for that area to the blank lamp 6.

Then, the direction of the marker is manually set using the marker one-direction setting key 54 of the operation unit 23, and the marker movement distance key 5
5 manually adjusts the moving distance of the marker in the vertical and horizontal directions, and when the print key 53 is operated, the photosensitive drum 2 is rotated to perform a copying operation, and the copied paper is sent to the intermediate tray II. , if necessary, the first toner and the second toner are switched by an automatic developer unit exchange 56 to change the color of the copy.

If the signal from the marker direction setting key 54 includes a horizontal component, the microcomputer 50 also uses the marker one direction setting key 54 to determine which direction to move the intermediate tray 11 to the left or right. , the direction of rotation of the intermediate tray moving motor 35 is determined, and based on the signal obtained from the photointerrupter 39 of the motor pulse slope 38, the intermediate tray moving motor is adjusted to correspond to the signal from the marker moving distance key 55. 35 rotation amount is controlled.

Then, so that the paper is sent out from the intermediate tray 11,
Intermediate tray paper feed clutch 1 of intermediate tray paper feed roller 12
2a, and then the paper moves to the registration roller 9.
It is confirmed by the signal from the pre-registration switch 10 that it is in front of the register.

Furthermore, if the signal from the marker one-direction setting key 54 described above includes a vertical component, information is also sent from the marker one-direction setting key 54 indicating in which direction the transfer position is to be shifted. , it is determined whether to advance or delay the on-timing of the registration clutch 9a, that is, the rotation start timing of the registration roller 9, and the transfer position of the paper is moved forward by a distance corresponding to the signal from the marker movement distance key 55. , or a signal is sent to the registration clutch 9a at a timing earlier or later than a predetermined timing so that the copy is shifted later.

In the above control, the intermediate tray moving motor 35 is controlled in the lateral force direction in the paper transport direction, and the registration clutch 9a is controlled in the longitudinal direction of the paper transport, and each movement distance is determined by the marker. It is controlled based on the signal from the travel distance key 55.

An example of an image forming method using a copying machine configured as described above will be explained based on the flowcharts shown in FIGS. 1 and 2.

First, in FIG. 1, the area to be marked is determined by the user using the tablet 22 (step 1).
01), when the direction of the marker is input using the keys on the operation unit 23 (step 102), the direction of the marker is determined (step 103), and if it is the vertical direction, the moving distance, xcm, is determined by human power. Been (step! 0
4) The moving distance Mx is converted into the on-timing time 1+ of the registration roller 9 (step 105).

Furthermore, if the direction of the marker is diagonal, the moving distance, vertical x cm and horizontal y cm, is input (step 10).
6), the moving distance Mx is converted to the on-timing time 1+ of the registration roller 9, and the moving distance y is converted to the number of moving pulses Lt of the intermediate tray 11 (step 10).
7).

Furthermore, if the direction of the marker is horizontal, the moving distance, ycm, is manually input (step 108), and the moving distance, My, is the intermediate tray! The number of moving pulses is converted into (step 109).

Then, when the print key 53 is operated (step +
10), the second developing device 5 is automatically set, and during copying, the blank lamp 6 is turned on in an image area other than the designated area to remove static electricity, and the image in the designated area is transferred (step I II I); The conveyance path is switched in the direction of the intermediate tray 11 (step 112), and the transfer paper or the intermediate tray 1 is
1 (Step 113L) Switching to the No. 1 developing unit 4 is performed, and the developer is switched to another color (Step 114).

Furthermore, in FIG. 2, the direction of the marker is determined again (step 115), and if the direction is horizontal or diagonal, the intermediate tray 11 is moved laterally with respect to the transport direction (step 115). 116), counter memory a
is reset (step +17), the intermediate tray moving motor 35 is rotated while counting the rotational steps (step zg), and when the count reaches 0, the lateral movement of the intermediate tray II ends (step 119).
, the direction of the marker is determined again (step 120).
.

In this step +20, if the direction of the marker is horizontal, paper feeding is started from the intermediate tray 11 (step 121), and the registration moe switch 10 is activated.
When turned on (step 122), paper transfer begins.

In this case, the time count memory b of the microcomputer 50 is reset (step 123) and 1
Counting begins in milliseconds (step 124);
When it is determined that the normal copy timing S has elapsed (step 125), the registration clutch 9a is turned on (step 126), and the copy process is performed (
Step 127L The final paper is ejected (Step 1
28).

Further, if the direction of the marker is vertical in step 115, and if the direction of the marker is diagonal in step 120, intermediate tray II
Paper feeding is started (step +29), and when the pre-registration switch 10 is turned on (step +30), paper transfer is started.

In this case, the counter memory b is reset (step 131) and starts counting in units of 1 millisecond (step +32), and the timing S is adjusted by adding or subtracting milliseconds from the normal copy timing S. Top 1.
When it is determined that time has elapsed (step 133)
, the resist clutch 9a is turned on (step ■34).
), copy processing is performed (step 135), and the final paper is ejected (step l36).

Figures 7 to 12 are explanatory diagrams showing an example of a copy that has been subjected to marker processing in this way, and when copying is done by shifting it in the vertical direction as shown in Figure 7, for example, only λ'' is enlarged. When viewed from above, it is shifted vertically as shown in Fig. 8, and when it is shifted and copied horizontally as shown in Fig. 9, it is shifted horizontally as shown in Fig. 10. When copies are made with a diagonal shift as shown in the figure, the markers are processed with the diagonal shift as shown in FIG.

In this way, by mechanically shifting the copy paper in the vertical and horizontal directions and transferring the same image again, you can perform a marking process that makes the image in the designated area stand out. Even within a blank page, unnecessary marker solids (filled areas) are not copied onto blank pages, and furthermore, by changing the vertical and horizontal movement positions, various marker functions can be performed. It is possible to have it.

In addition, in this example, when transferring to paper,
At the time of the first transfer, the second developing device 5 is automatically set, and the second developing device 5 is automatically set.
It has been explained that at the time of the first transfer, the image is automatically switched to the first developing device 4 for each transfer. The second developing device 4.5 can be switched from the operating section 23,
As a result, it is of course possible to designate the toner color for the first and second transfers from the operation unit 23.

(g) Effect of the invention According to this invention, first, normal transcription is performed, and then,
Mark processing is performed by retransferring the same image as the image that was normally transferred onto the same transfer surface, with some and all of the images shifted in the vertical and horizontal directions, so it is possible to Even within the area, unnecessary marker solids (filled areas) are not copied onto blank paper, etc., and various mark processing can be performed by changing the shift position of the retransferred image. It becomes possible.

[Brief explanation of the drawing]

1 and 2 are flowcharts showing an example of the image forming method of the present invention, FIG. 3 is a structural explanatory diagram showing the internal structure of a copying machine used in the image forming method of the present invention, and FIG. FIG. 5 is a configuration explanatory diagram showing the configuration of the intermediate tray, and FIG. 6 is a perspective view of the top of the copying machine shown in the figure.
Block diagram showing the control circuit of the copying machine shown in Fig. 5, No. 7
~Figure 12 is an explanatory diagram showing an example of a copy that has been subjected to marker processing,
FIGS. 13 and 14 are explanatory diagrams showing an example of copying by a conventional image forming method, and FIG. 15 is an explanatory diagram showing area designation in the conventional image forming method. I...Original placing table, 2...-Photosensitive drum, 4...First developing device, 5...Second developing device, 6... ...Blank lamp, 7... Paper feed section, 8... Conveyance roller, 9... Registration roller, 9a... Registration clutch, 10...・Pre-registration switch, 11... Intermediate tray, 12... Intermediate tray paper feed roller,! 2a...
... Intermediate tray paper feed clutch, 14 ... Fixing section, +5, 1.6.17 ... Conveyance roller, 18 ...
...Paper ejection section, 23...Operation section, 28...
...Bottom plate, 29λ, 29b...Side regulation plate, 34...Shaft, 35...Intermediate tray movement motor, 36.37.
...Bevel gear, 38...Pulse plate, 39.
...Photointerrupter, 50...Microcomputer, 5...
RAM, 52...ROM, 53...Print key 54...Marker one-way setting key 55
・・・・・・Marker movement distance key Fig. Fig. Fig.

Claims (1)

[Scope of Claims] 1. A paper feeding unit that supplies paper, an image forming and fixing unit that transfers and fixes an image onto the supplied paper, and a paper that has passed through the image forming and fixing unit and is sent to the image forming and fixing unit again. Using an image forming apparatus that includes an intermediate tray that temporarily stores the paper for feeding, and a shifting means that shifts the paper supplied from the intermediate tray to the image forming and fixing section in the vertical and/or horizontal direction with respect to the conveyance direction, First, the paper supplied from the paper feed section is sent to the image forming and fixing section to transfer and fix the first image, and then the paper is stored in the intermediate tray. The second image is transferred and fixed on the same surface as the first image by being shifted in the vertical and/or horizontal direction with respect to the conveying direction and sent to the image forming and fixing section. image forming method.