JPH01147484A - Image forming device - Google Patents

Abstract

PURPOSE:To automatically and sequentially form plural image areas on transfer material by moving an original to the position in response to the image formation position on the transfer material, positioning the original and then executing image formation operation on the transfer material plural times. CONSTITUTION:When a necessary image area on a screen 26 is specified and inputted by the use of an operation key 5, a CPU 1 reads the input value via an interface circuit 6 and moves a microfilm 23 with the aid of a film driving means 50 to the position in response to the image formation position on the transfer material 39 and positions said film. The drive of a scanner motor 8 is stopped by a mirror inversion sensor 12, a developing bias is applied after the shielding of the mirror inversion sensor 12 released, then images of plural originals are developed on a photosensitive drum 27 by interrupting the developing bias after exposure. Thus, parts of the images of plural originals are automatically and efficiently integrated on one transfer material, and precise image formation is accomplished without deteriorating high definition and picture quality.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image forming apparatus that edits an image on a document and forms an image on a transfer material in a microfilm reader printer, a copying machine, or the like.

(Prior Art) Conventionally, in order to form images of some of the images of a plurality of originals on the same transfer material, for example, as shown in FIG.
), (b), and (c), first, the first original 10
After cutting out a part of 0 and then cutting out a part of the second original 101, these are pasted onto a sheet 102 and then copied, or as shown in FIGS. 11(a) and 11(b). First, a part of the first original 100 is transferred to the transfer paper 103.
This is done by copying a portion of the second original 101 onto the same transfer paper 103 after copying it onto the same transfer paper 103.

Also, if the medium on which image information is recorded is microfilm, can it be expanded to 7E1 transfer paper? After copying, cutting and pasting as shown in FIG. 10 above had to be done.

(Problems to be Solved by the Invention) However, in the conventional example shown in FIG. 10, a part of the original must be cut out and then pasted, which takes one step and may damage the original. There was a problem that it could not be reused. In addition, in the conventional example shown in Fig. 11, the operator must adjust the position of the image each time it is copied, which is time consuming and difficult to operate, and also requires the operator to accurately place a portion of each image on the transfer paper. There is a problem that an image cannot be formed and the image quality is deteriorated. Furthermore, when the original is a microfilm, it is necessary to make an enlarged copy of the original on a transfer paper, which is time-consuming and deteriorates the image quality.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional example, and its object is to provide a method for converting images of a part of a plurality of original images without deteriorating the image quality or image quality. An object of the present invention is to provide an image forming apparatus that can automatically form images on the same transfer material.

(Means for Solving the Problems) In order to achieve the object of item E, the present invention includes forming images of at least each portion of images on a plurality of originals multiple times on the same transfer material in sequence. The image forming apparatus includes a positioning means for moving and positioning the document to a position based on the image forming position on the transfer material.

(Function) In the present invention having the above configuration, by moving and positioning the document to a position based on the image forming position on the transfer material, and performing an image forming operation on the transfer material multiple times, This makes it possible to automatically sequentially form images on a transfer material in a plurality of image areas.

(Example) The present invention will be explained below based on the illustrated example. Second
The figure shows a schematic configuration of a microfilm reader printer as an embodiment of an image forming apparatus according to the present invention, in which a microfilm 23 as a document is illuminated by illumination means consisting of a projection lamp 21 and a condenser lens 22. The image is projected onto the screen 26 at a predetermined magnification by the projection lens 31 by a league optical system comprising a projection lens 31 having a zoom prism function and a mirror 20. In this case, the scan mirrors 24 and 25 for the printer are retracted to a position (toward the right in FIG. 2) where they do not block the projection optical path to the screen 26. Here, 8 is a scanner motor for moving the scan mirror 24.25, 11 is a mirror home sensor that detects the home position of the scan mirror 24.25, and 12 is a mirror reversal sensor that detects the inverted position of the scan mirror 24.25. It is a sensor.

When copying an image on the microfilm 23, scan mirrors 24 and 25 are integrally moved in synchronization with the circumferential speed of the photosensitive drum 27 as an image carrier to scan the image light on the microfilm 23, as shown in FIG. The image is projected onto the exposure position of the photosensitive drum 27 through a slit that does not cover the image.

A charging device, a developing device, a transfer device, etc. are arranged around the photosensitive drum 27, and copies can be obtained by a known process. That is, after the photosensitive drum 27 is uniformly charged by the primary charger 29, the image on the microfilm 23 is exposed to form an electrostatic latent image. This electrostatic latent image is developed into a visible image by a developing device 30, and the visible image is transferred onto a transfer paper 39 by a transfer die 2i32 serving as transfer means. Further, 9 is a paper feed roller that takes out the transfer paper 39 as a transfer material from the paper feed cassette 40, 10 is a timing roller that feeds the transfer paper 39 based on a timing signal, and 28 is a roller that removes unnecessary charges from the photosensitive drum 27. 33 is a transport belt for transporting the transfer paper 39 after image transfer, and 34 is for transporting the transfer paper 39 to the fixing device 38 or to the lower transport belt 36 via the guide plate 35. A switch 37 is a guide plate for refeeding the transfer paper 39 to the timing roller IO.

The fiTJ1 diagram is a block diagram showing the control system of this embodiment, and in the same figure, l is a central processing unit (CPU) as a control means, 2 is a ROM that stores the CPU operating program, and 3 is a CPU RA used during operation
M, 4 is a timer that generates an interrupt signal at a predetermined time interval to the CPU, 5 is an operation key, and 6 is an operation key 5 and the CPU.
An interface circuit 7 connects the first . A memory means having second memory means 7a and 7b, 14 is a CPU 1, a scanner motor 81, a paper roller 9, a timing roller 10, a mirror home sensor 11, a mirror reversal sensor 12, a projection lamp 21, a developing device 30 or a film drive. This is an interface circuit for connecting with the means 50.

Furthermore, FIG. 4 shows the microfilm feeding section in this embodiment, and in the same figure, 51 is the microfilm 23.
A capstan roller 52 is connected to the capstan roller 51 and serves as a positioning means for rotationally driving the capstan roller. Reference numerals 53 and 54 are a slit plate and a photo interrupter respectively attached to the capstan roller 51. , These constitute a photo encoder. 55 is a pinch roller, 56 is a winding roller for winding up the microfilm 23, 58 is a feeding roller for feeding out the microfilm 23, and 57.59 is a motor for applying tension to the microfilm 23 via reels 56.58. be.

In the above configuration, when the power switch (not shown) is turned on, the CPU turns on the lamp 21 according to the program stored in the ROM 2, and then lights up the scan mirror 24.
．． 25 is moved to the right in FIG. 2 until the mirror home sensor 11 is shielded from light by the light shielding plate 13. Thereby, the image on the microfilm 23 is projected onto the screen 26 by the projection lens 24. In this state, the operator or the automatic information retrieval device selects a desired first image frame from the microfilm 23. Here, the operator specifies and inputs the required area on the image on the screen 26 using the operation keys 5 (al, A2 in FIG. 8(a)), and the CPU inputs the input values al, A2 via the interface circuit 6. , and writes al as the copy end position information and A2 as the copy end position information in the RAM which is the first memory means 7a shown in FIG. 3(a).

Next, when the operator presses the copy key of the operation key 5, the CPU clears the accumulated amount of copying (image formation) in the second memory means 7b, and then the CPU is transferred to the microcontroller by the motor 52 in the film drive means 50 via the interface circuit 14. The film 23 is moved by al/P millimeters to the right in FIG. Here, P is a projection magnification determined by the focal length and optical path length of the projection lens 31. film 23
The amount of movement is measured by a slit plate 53 and a photointerrupter 54. Furthermore, the CPUI is an interface circuit 1.
4, the scan mirrors 24 and 25 are driven by the scanner motor 8 to the left in FIG. 2 until the mirror reversal sensor 12 is blocked by the light shielding plate 13,
When the light is blocked, the scanner motor 8 stops (indicated by ■ in FIG. 5), and the paper feeding roller 9 feeds the transfer paper 39 to the timing roller IO. Thereafter, the scan mirrors 24 and 25 are moved at a constant speed by the scanner motor 8 in the right direction in FIG. 2 for exposure. Due to this movement, the light shielding plate 13 comes off from the mirror reversal sensor 12 (indicated by ■ in FIG. 5). An enlarged image of the image frame begins to be projected onto the photosensitive drum 27 (see Fig. 5).
), and further T, , = al /v second sand diameter original image (7
) A1 point is projected, and the model T 2-1 = a 2 /
Point A2 of the original image is projected onto the v sand diameter. At this time, an enlarged image of the image on the microfilm 23 is formed on the photosensitive drum 27 based on a known electrophotographic process. That is, a charge is applied to the photosensitive drum 27 by the negative charger 29, and an electrostatic latent image is formed on the photosensitive drum 27 by the image exposure.

Next, it is developed with toner in the developing device 30, but in this embodiment, after exposure at point A1, as shown in FIG. 7, Td=θ
After 1/ω seconds, that is, T, )+Td seconds after the sand diameter reversal sensor 12 is unshielded, the sand diameter image bias Vd is applied, and A
Td=θ1/ω seconds after exposure of the two points, that is, after the sand diameter reversal sensor 12 is no longer shielded, To+T2. After +Td seconds, the sand diameter image bias Vd is cut off. Here, in Fig. 7,
01 is the angle on the photosensitive drum 27 from the projection point to the developing point, and θ2 is the angle on the photosensitive drum 27 from the projection point to the transfer device 32.
The upper angle, ω, is the rotational angular velocity of the photosensitive drum 27 (deg/
sec), and the rotational angular velocity ω is v=2πr for the process speed V (equal to the transfer paper conveyance speed).
equal to between ω/360), v=2πrω/3
There are 60 relationships. r is the radius of the photosensitive drum 27.

The developing bias Vd applied to the developing device 30 is such that when the image on the microfilm 23 is negative, toner is attracted to the area of the photosensitive drum 27 that is irradiated with light, and when it is positive, toner is attracted to the area that is not irradiated with light. It is set to absorb.

As a result of the above, the original image is displayed on the photosensitive drum 27 from A1 to A.
Images in the range of 2 are developed. Furthermore, after To+TD seconds after the light shielding of the mirror reversal sensor 2 is removed, the sand diameter roller 0 is operated to feed the transfer paper 39 to the transfer device 32. Here, TD=θ2/ω−view/V. In order to accurately operate the timing roller 10 at a predetermined time and feed the transfer paper 39 to the transfer device 32, in this embodiment, the number of interrupts of the timer 4 to the CPU is counted, and the mirror reversal sensor 12 is blocked from light. The number of interrupts TO corresponds to the time To1T in which the timing roller O should be operated from this reference point.
It is determined whether +To/τ has occurred. This τ is the interrupt period by timer 4.

The transfer device 32 transfers the visible image (toner image) on the photosensitive drum 27 onto a transfer paper 39 using a known transfer function using alternating current. In this case, the transferred image of A1-A2 is shown in Figure 8 (
The image is transferred to the left end of the transfer paper 39 as shown in c). After the transfer is completed, the transfer paper 39 is conveyed to the switching device 34 by the upper conveyance belt 33, and since this switching device 34 is set in advance to the left rotation position, the transfer paper 39 is guided to the lower conveyance belt 36 by the guide plate 35. .

At this time, after the transfer paper 39 passes through the upper conveyance belt 33, it is preferable that the toner image is fixed by a separately provided fixing device.Next, the transfer paper 39 is conveyed to the guide plate 37 by the lower conveyance belt 3G. and the timing roller 10
is confronted with.

Furthermore, cput passes through the interface circuit 14, and the motor 52 moves the microfilm 23 by a1/p millimeters in the left direction in FIG. 4. A series of operations completes the first copying operation. After copying, the CPU stores a2 = A2 in the second memory means 7b as the cumulative amount of copies.
- Memorize AI.

Next, the operator selects the desired second film from the microfilm 23.
Select the image frame and position the required area as shown in Figure 8(b).
After inputting from the operation key 5 as shown in 81 to B2, the copy key is pressed.In the second and subsequent copying operations, the accumulated amount of copies is not cleared. First, the CPU
I transfers the microfilm 23 by the motor 52 via the interface circuit 14 (b1/p - total amount of copies/p)
Millimeter movement 0 in the right direction in FIG. 4 Next, the scan mirror 24° 25 is moved to the reversal sensor 12 in the same way as the first time described above. Thereafter, a second copying operation is performed in substantially the same manner as the first copying operation.The difference between the first copying operation and the second and subsequent copying operations is that the paper is fed by the paper feed roller 9 in the first copying operation. However, from the second time onwards, the lower conveyor belt 36 is used, and the developing bias Vd,
The application time is delayed by the cumulative amount of copies/V seconds. still,
The operation timing of the timing roller IO does not change.

By the above operation, the image B1-B2 is copied to the right of the first copy image, as shown in FIG. 8(d). After the copying operation, the CPU via the interface circuit 14 causes the motor 52 in the film drive means 50 to move the microfilm 23 to the left in Fig. In the memory means 7b (A2-At) + (B2-Bt
)=a2+b2 is stored. Thereafter, the original images are sequentially copied onto the transfer paper 39 in the same manner as in the second copying operation.

FIG. 9 shows another embodiment of the present invention, in which the same parts as in the previous embodiment are denoted by the same reference numerals.
60 is a microfiche as a manuscript, 61 is a gear 6
3 is a pulse motor that is a drive source for moving the table 65 in the X direction; 62 is a drive source that moves the table 65 in the
A pulse motor, which is a driving source for moving 6 in the Y direction, 6
7 is a plate with a half plate, and 68 to 75 are rollers.

In the two-leg configuration, the operator or the automatic information retrieval device moves the table 65 in the X and Y directions by rotating the pulse motors 61 and 62 in the forward or reverse direction, and retrieves the desired first image frame from the microfiche 60. Select and project on the screen 26. Next, the operator specifies and inputs the required area on the image using the operation keys 5 (al and a2 in FIG. 8(a)).
. Then, the CPUI passes through the interface circuit 6,
Read the input values al and a2 and store the ml memory means 7a.
al as the copy end position information in the RAM where
, writes a2 as copy end position information.

Next, when the operator presses the copy key of the operation key 5, after clearing the cumulative amount of copies in the second memory means 7b, the CP
The UI is connected to the pulse motor 61 via the interface circuit 2.
The microfiche 60 is moved to the right in FIG. 9 by a1/p millimeters. Here, p is the projection lens 3
This is the projection magnification determined by the focal length of 1 and the optical path length.

The movement of the buoy black fish 60 is controlled by the number of pulses that drive pulse motors 61 and 62 as positioning means. Thereafter, copying operations are performed in substantially the same manner as in the embodiment described above.

Incidentally, in the above embodiment, an example in which the present invention is applied to a reader printer has been described, but the present invention is also applicable to a copying machine equipped with an ADF (automatic document feeder). In this case as well, as in the above embodiment, a means for moving and positioning the document to a position based on the image forming position on the transfer material is provided, so that images are sequentially formed on the transfer material in a plurality of image areas.

(Effects of the Invention) The image forming position according to the present invention has the above-described configuration and operation, and can form images by automatically and efficiently accumulating parts of images on multiple documents onto a single sheet of transfer material. Therefore, image formation can be performed accurately without deteriorating image quality and image quality, and operability can be improved by eliminating the need for cutting and pasting documents. Furthermore, since the image formation described above can be performed by controlling the positioning of the document, the control operation is simplified.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a control system of an embodiment of the present invention;
Figure 2 is a schematic configuration diagram of a microfilm reader printer to which the same embodiment is applied, and Figures 3 (a), (b), and (c).
4 is a block diagram of the memory means in the same embodiment, and FIG.
FIG. 5 is a timing chart showing the first copying operation in the same embodiment, and FIG. 6 is a timing chart showing the second copying operation in the same embodiment. , FIG. 7 is an explanatory diagram showing the positional relationship of the copying mechanism in the same embodiment, FIG. 8(a),
(b), (c), and (d) are explanatory diagrams showing image area specification in the same embodiment, FIG. 9 is a perspective view of main parts showing another embodiment of the present invention, and FIG. 10 (a), (b) and (c) are explanatory diagrams showing a conventional image processing procedure, and FIG. 11 (a). (b) is an explanatory diagram showing another conventional image processing procedure. Explanation of symbols l...CPU 2...ROM
'3...RAM 4...Timer 7...
・Memory means 12...Mirror reversal sensor 23・
... Microfilm (original fA) 24.25 ... Scan mirror 27 ... Photosensitive drum 32 ... Transfer device 39 ...
・Transfer paper (transfer material) 50...Film driving means 52...Motor (positioning means) 53...Three-seven plate 54...Photo interrupter 60...Microfiche (original m) agent Patent attorney 1) Rules: 1・) Figure 1 Figure 2 Figure 3 (b) (C) Figure 6 Rod Figure 7 Figure 9

Claims (1)

[Claims] An image forming apparatus that sequentially forms at least a portion of images on a plurality of originals on the same transfer material multiple times, the original being moved to a position based on the image forming position on the transfer material. An image forming apparatus characterized by comprising a positioning means for positioning the image.