JPS63306480A - Picture recorder - Google Patents

Abstract

PURPOSE:To shorten the recording time by arbitrarily setting the magnification of a recording picture by a magnification varying means and feeding a display face at a speed higher than the magnification set speed in the area other than a prescribed area to be recorded by a feed speed control means. CONSTITUTION:A display part 1 provided with a display medium on which picture information is visually displayed and a recording part 2 which moves the display medium to expose and scan picture information, which is displayed on the display medium, on an image carrier 21 through an exposure optical system and records an image by the electrostatic photographic process are provided. The exposure optical system is provided with a magnification varying means M2 which converts the magnification of the exposed image projected on the image carrier and a display medium feed control means 9 which feeds the display medium in accordance with the magnification at the time of exposure and scanning of the prescribed area to be recorded but feeds it at a higher speed in the area other than the prescribed area. Thus, the display image projected on the image carrier is adjusted to an arbitrary size by the magnification varying means, and the display medium is fed at a speed higher than the speed for exposure and scanning in the picture area other than the area to be recorded, and the recording time is shortened.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an image recording device that includes an image information display section such as an electronic blackboard, and a recording section that records information displayed on one display section.

(Prior Art) Conventionally, as this type of image recording apparatus, there is one as shown in FIG.
9), that is, 100 is a display unit that visually displays image information, and is provided with an endless board sheet 101 as a display medium. On the other hand, 102
is a copying machine unit as a recording section that records image information displayed on the board sheet 101, and the board sheet lot
The image information displayed is projected onto a photosensitive drum 104 as an image carrier through an exposure optical system 103, and a copy of the image information is taken by an electrostatic photographic process. The exposure of the above display image is carried out by a copying machine 2) 102
The board sheet 1 is synchronized with the peripheral speed of the photoreceptor drum 104.
01 to expose and scan the display image onto the photoreceptor drum 104.

Further, the projection magnification by the exposure optical system 103 is set to such a degree that the entire display surface Iota of the board 101 can be copied, for example.

(Problem to be Solved by the Invention) However, in the case of such conventional technology, the projection magnification of the display image onto the photoreceptor drum 104 was a constant magnification, so for example, the display image could be changed from the size of the AI size. If the magnification is set to reduce the copy size to A4 size,
When copying a 2-size image, the displayed image is A4.
There is a problem in that the image is copied too small on the paper, making the copied image difficult to see. On the other hand, the image information displayed on one display surface 101a has various sizes, and there has been a strong desire to adjust the copy magnification according to the size of the displayed information.

In order to satisfy such requirements, the exposure optical system 10
It is conceivable to provide a variable magnification means in 3. In this case, in order to convert the vertical magnification of the recorded image, the following steps are required:
It is necessary to increase or decrease the feeding speed of the photosensitive drum 104 with respect to the circumferential speed of the photoreceptor drum 104 to achieve synchronization. Then, when reducing a large display image to about A4 size, the feeding time of board sheet (sheet) 101 can be shortened in order to speed up the feeding speed of board sheet (sheet) 101, but when enlarging a small display image, board sheet It is necessary to slow down the feed speed of 101. Therefore, it takes a long time to move the board 3 sheet 1O1, and the waiting time for the next copy or display operation on the board sheet 101 becomes long, resulting in poor operability.

The present invention has been made to solve the problems of the prior art described above, and its purpose is to be able to record the display image displayed on the display section at any magnification, and to shorten the recording time. The object of the present invention is to provide an image recording device that can perform

(Means for Solving the Problems) In order to achieve the above object, one aspect of the present invention includes a display unit equipped with a display medium that visually displays image information;
An image recording unit that scans the image information displayed on the display medium onto an image carrier through an exposure optical system by moving the display medium, and records the image by an electrostatic photographic process. In the apparatus, the exposure optical system is provided with a variable magnification means for converting the magnification of the exposure image projected onto the image carrier, and the exposure optical system is provided with a magnification means for converting the magnification of the exposure image projected onto the image carrier, and when scanning the exposure of a predetermined area on which the display medium is to be recorded, the exposure optical system is configured to change the magnification at a speed corresponding to the magnification. The present invention is characterized in that it is provided with display medium movement control means for feeding the display medium faster than the exposure scanning speed in areas other than the predetermined area.

(Function) The display image projected onto the image carrier is adjusted to an arbitrary size by the variable magnification means. On the other hand, in an image area other than the area to be recorded on the display medium, one display medium moves at a faster speed than the exposure scanning speed, and the recording time is shortened.

(Example) The present invention will be explained below based on the illustrated example. 1st
2 and 2 show an image recording device according to an embodiment of the present invention applied to an electronic blackboard, and show a display unit (l) as a display unit for displaying image information and a copying machine as a recording unit. The 0 display unit 1, which is composed of the unit 2, is provided with an endless board sheet 4 as a display medium on the front surface of a flat housing 3. This board sheet 4 is hung between a driving roller 5 and a driven roller 6 which are arranged parallel to each other at both the upper and lower ends of the housing 3, and the driving roller 5 is rotated via a sheet driving motor Ml. This allows the board sheet 4 to be moved up and down.

This writing board sheet 4 is made of a flexible member made of PET (polyethylene terephthalate) coated with a fluorocarbon resin, etc., and various information can be written on its surface.

Pasting is possible.

Inside the casing 3 on the back side of the board sheet 4 is an exposure optical system 7 for projecting information displayed on the board sheet 4 onto a photosensitive drum 21 as an image carrier inside the copying machine unit 2. is provided.

The exposure optical system 7 includes an illumination means 71 such as a fluorescent lamp that illuminates the display image that has been moved to the back side by rotating the board sheet 4;
Mirrors 72 and 73 for reflecting the reflected light of the illuminated display image toward the copying machine unit 2 side, and a lens 7 for forming an image of the display section on the photosensitive drum 21 of the copying machine unit 2.
It is composed of 4. When copying, the board sheet 4 is rotated half a turn, the first display surface 41 exposed on the front side of the display unit 1 is turned to the back side, scanning exposure is performed via the exposure optical system 7, and a new second table is printed. The receiving part 42 is moved to the front side of the display unit l.

On the other hand, the copying machine unit 2 obtains recorded images by a known electrophotographic process, and around the photosensitive drum 21 -
Next charger 22. An exposure section 23 to which image light from the exposure optical system 7 is exposed, a developing device 24, a transfer charger 25, and a cleaner 26 are arranged and configured, and the timing of each process is set in accordance with the movement of the board sheet 4. The displayed image is copied onto recording paper P. In this way, the copying machine unit 2 is configured so that in addition to copying information from the display unit 1, the copying machine unit 2 can also perform normal copying independently.

Further, the exposure optical system 7 provided in the display unit 1 is provided with a variable magnification means 8 for changing the magnification of the exposure image projected onto the photoreceptor drum 21. As the magnification changing means 8, a zoom lens is used as the lens 74 in this embodiment, and the optical path length of the exposure optical system 7 is constant.
This is done by moving the position toward the photosensitive drum side or the writing board sheet 4 side. The zoom lens 74 is moved by a zoom movement motor M2. However, the optical path length may be changed by moving mirrors 72, 73, etc., instead of using a zoom lens as the magnification changing means.

On the other hand, the vertical magnification of the exposed image projected onto the photoreceptor drum 21 is determined by the relative speed ratio between the peripheral speed v8 of the photoreceptor drum 21 and the sheet speed V^ of the board sheet 4. In this embodiment, the photoreceptor The peripheral speed We of the drum 21 is constant, and the sheet speed V^ of the board sheet 4 is controlled to be set to a speed corresponding to the magnification set by the magnification changing means 8. That is, if the magnification by the variable magnification means 8 is β, then the sheet speed is V^=V
All you have to do is run at e/β, where board sheet 4 is CPU
This control is controlled by a control means 9 such as the following: during exposure scanning of a predetermined area to be recorded on the board sheet 4, the movement is performed at a speed corresponding to the set magnification, and in areas other than the predetermined area, the magnification setting is changed. It is controlled to move at a speed greater than the speed.

The display surface 41 of the board sheet 4 is, for example, the size of the maximum AI version size (area A in the figure), and there are two copy modes: a standard mode that copies the display image that fills the area A to the A3 size, and a copy mode of the display surface 41. It also has a variable magnification mode for copying a portion (area B in the figure) to A3 size.

In the variable magnification mode, a magnification is specified by a magnification specifying section 10 provided on an operation panel (not shown), and the zoom drive motor M2 is rotated by a predetermined amount by the control means 9 in accordance with this magnification specifying signal to adjust the position of the lens 74. Standard position MN
to the zooming position M. By moving this lens 74, the magnification of the exposed image is changed to a predetermined magnification.

On the other hand, during copying, the driving of the sheet moving motor M+ is controlled in accordance with the magnification specified by the magnification specifying section IO, and the sheet speed V^ of the board sheet 4 is controlled. For example, the length of one vertical side of area A on the display surface 41 is a, B
If the length of one side of the area in the vertical direction is b, then when projected with a projection magnification of β×-, the image is projected with the size of the fc manual force direction of the photoreceptor drum 21, and the sheet speed V^ at this time is V ^=Va
b 4-×a Therefore, the sheet speed V becomes slower than the sheet speed V^ in the standard mode by b/a times ♂ Furthermore, the board sheet 4 is fed all the way from one side to the display surface 41.4.
2, but it is driven slowly at a speed VA corresponding to the magnification only during the exposure scan of the above area B, and when the exposure scan is completed and the other area is moved, the board sheet 4 is sent at a speed higher than the magnification setting speed. It looks like this. Board sheet 4
To determine whether or not exposure scanning is in progress for area B, for example, the time for passing through area B may be set in advance at the magnification setting speed vAP, and controlled by a timer.

Further, to set the area to be recorded, for example, a specific area may be determined in advance, or a certain area may be arbitrarily set by specifying coordinates by operating a numeric keypad or the like. Furthermore, the areas to be recorded may be set discontinuously in the feeding direction of the board sheet 4. In that case, the areas to be recorded and the non-recording areas are set separately on the board sheet 4.
The feed rate VA may be controlled by switching.

Next, the operation of the image recording apparatus having the above configuration will be explained.

First, when copying an image of the entire AgA area (At size) of the sheet display surface of the board sheet 4 to A3 size in the standard mode, the lens 74 is at the standard position N and the board sheet 4 is at the standard magnification β. The sheet is sent from the upper end side to the back side at a sheet speed V^ corresponding to . On the other hand, the display image that has come to the rear side is illuminated by the illumination means 71 constituting the exposure optical system 7, and is exposed and scanned onto the photoreceptor drum 21 via the mirrors 72, 73 and the lens 74. An electrostatic latent image is formed. Then, an image at a predetermined magnification is copied onto the recording sheet P by an electrostatic photographic process via a charger 22, a developer 24, and a transfer charger 25 installed in the copying machine unit 2.

Next, the variable magnification mode for copying area B will be explained based on the timing chart shown in FIG. First, when a predetermined variable magnification is specified by the magnification specifying section 1O, the magnification specifying signal T'' is turned on, and based on this signal Tr, the zoom movement motor M2 is driven by the control means 9 for a predetermined period of time, and the lens 74 is changed. When the lens 74 moves to the variable magnification position M, the drive motor MO of the copying machine unit 2 is turned on and the photosensitive drum 21 starts rotating at a predetermined circumferential speed. The illumination means 71 of the system 7 is turned on, and at the same time, the sheet moving motor M1 that drives the board sheet 4 is turned on, and the board sheet 4 starts to be fed at a predetermined magnification setting speed, and the photoreceptor is moved through the mirrors 72, 73 and the lens 74. Exposure scanning of the display image on the drum 21 is started. During this exposure scanning, while scanning the B area on the board sheet 4, the TI is fed at a slow magnification setting speed, and after passing the B area, the sheet moving motor M is moved. The number of revolutions is increased to rapidly advance the board sheet 4.

On the other hand, in the copying machine unit 2, the paper feed roller 27 and the developing device 2 are
4 Furthermore, the timing of paper ejection is controlled.

In this way, during scanning exposure of the recording area on the board sheet 4,
Since the board writing sheet 4 is fed slowly and the non-recording area is fed quickly, the time required for copying operations can be shortened. For example, if the A area of the maximum effective part of the board sheet 4 is the AI size and the copy image is to be made to the A3 size, the scanning feed speed vA8 of the board sheet 4 becomes V^β=%Ve, and at this speed A Suppose it is sent over the entire length of the area.

The user has to wait for a long time until the writing board 4 stops. That is, if the sheet rotation time of the board sheet 4 when copying an AI version size display image in the standard mode is t seconds, the sheet rotation time in the variable magnification mode is 2 seconds.

Therefore, if the area other than the exposure scanning area is run at 2VB, the rotation of the writing board sheet 4 will be completed in t seconds in both the standard mode and variable magnification mode. Therefore, there is an advantage that the waiting time for the next display operation or copy operation can be shortened, and the operability is improved.

(Effects of the Invention) The present invention has the above-described configuration and operation, and the magnification of the recorded image can be arbitrarily set by the variable magnification means.
An effect is obtained in that an image of a desired size can be obtained in accordance with information of various sizes displayed on the display means. Furthermore, the display surface is moved at a speed greater than the magnification setting speed in areas other than the predetermined area where the feed speed of the display surface is to be recorded by the feed speed control means.
The effect is that the recording time can be shortened.

[Brief explanation of drawings]

1st V! J is a side view showing a schematic configuration of an image recording device according to an embodiment of the present invention, FIG. 2 is a front view of FIG. 1, and FIG. 3 is a control timing when changing the magnification of the device in FIG. The time chart in FIG. 4 is a side view showing a schematic configuration of a conventional image recording apparatus. Explanation of symbols 1... Display unit 2... Copying machine unit (recording part) 4... Board sheet (display medium) 5... Drive roller 7... Exposure optical system 74.
...Lens 8...Magnification variable means 9...Controller P...Recording paper M1...Sheet drive motor M2...Zoom movement motor Mo...Drive motor patent applicant Canon Co., Ltd. Agent: Patent attorney Yoshikazu Ou□. Agent Patent Attorney Oku 1) Noriyuki - [...Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] A display unit including a display medium that visually displays image information, and a display unit that displays image information on the image carrier through an exposure optical system by moving the display medium. In an image recording device comprising a recording unit that performs exposure scanning and records an image by an electrostatic photographic process, the exposure optical system is provided with a variable magnification unit that converts the magnification of the exposure image projected onto the image carrier. In addition, display medium movement control means is provided that moves the display medium at a speed corresponding to the magnification during exposure scanning of a predetermined area to be recorded, and moves the display medium faster than the speed during the exposure scan in non-recording areas other than the predetermined area. An image recording device characterized by: