JPS62118337A - Input device for original size - Google Patents

Abstract

PURPOSE:To set the size of an original and to facilitate operation for size input by moving an original platen. CONSTITUTION:The original platen 11 capable of moving reciprocally is fitted on the top surface of a copying machine body 1, which has an optical system 2, a copy processing part 3, and a copying paper conveyance part 4 internally. The original platen 11 consists of contact glass 12 where an original is supported and an original pressure plate 13 which fixes the original in contact with the top surface of the contact glass 12. The optical system 2 consists of a light source 21, reflecting mirrors 22-24, a lens 25, and a reflecting mirror 26, the original set on the contact glass 12 is irradiated with light from the light source 21, and the reflected light from the original is guided to the copy processing part through the reflecting mirrors 22-24, lens 25, and reflecting mirror 26. The 1st indication plate 51 is fitted extending in parallel to an exposure slit 17 formed in the top surface of the copying machine body 1 to judge visually the quantity of movement of the original platen 11 in an exposure moving direction.

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a document size input device, and more specifically, the present invention relates to a document size input device, and more specifically, by reciprocating a document placing table, an image signal corresponding to the document is exposed. The present invention relates to a document size input device applied to a device for obtaining a document size.

<Prior art> Conventionally, the method of inputting the original size has been provided by operating keys corresponding to standard original sizes, but with the recent demand for multi-functionality, it is also possible to input irregular original sizes. It has become necessary to make this possible.

As a document size input aft that allows input of such irregular document sizes, an irregular document specification key is provided, and when the irregular document specification key is operated, the numeric keypad is pressed. A configuration is provided in which an irregular document size can be set and input by operation.

Specifically, the operation for inputting 1 size of an irregular-sized original is explained. First, the irregular-sized original specification key is operated to select the irregular-sized original use mode. Then, while looking at the original set on the document table and the coordinates displayed on the document table,
Enter the size in the length direction by operating the numeric keys, and set by operating the input key. Similarly, set the width direction size.

Thereafter, the size of the paper on which the image corresponding to the original is to be formed is detected by the paper feed cassette, the magnification is automatically set, and the image forming operation is performed.

When setting the magnification in this case, the magnification is set based only on the longer of the set sizes.

<Problems to be Solved by the Invention> In the above configuration, when inputting the document size, it is necessary to input numerical values using the numeric keypad while looking at the document and the coordinates, which makes the operation very laborious. There is a problem.

Also, even though only one of the size data is used,
You will now have to enter numerical values in both the length and width directions, which makes the entire document size input operation much easier! The problem is that it becomes sloppy.

<Object of the invention> This invention was made in view of the above problems,
A device that exposes a document to light by reciprocating the document table or an optical part, and in the case of a movable document table, the document table moves relatively easily when an external force is applied. It is an object of the present invention to provide a document size input device that can easily and reliably input even irregular document sizes.

Means for Solving Problems> To achieve the above object, the document size input device of the present invention includes a movement amount detection means and a size setting means. The movement amount detection means detects the movement amount of the document mounting table or the optical section, and the document size setting means sets the document size based on the detection signal from the movement amount detection means. .

With the document size input device configured as described above, with the document set on the document tray, the document tray or optical section is moved at a speed lower than the speed during exposure operation according to the document size. As a result, the movement amount detecting means can detect the movement vJffi of the document placing table or the optical section, and the document size setting means can set the document size based on the detected movement 111ffi.

<Example> Hereinafter, embodiments will be described in detail with reference to the accompanying drawings showing examples.

FIG. 6 is a schematic diagram showing the internal structure of the copying machine.
The optical system (2) is installed inside the copier body (1).
), a copy processing section (3), and a copy paper transport section (4).

The document mounting table (11) is composed of a contact glass (12) that supports the document, and a document holding plate (13) that tightly fixes the document on the top surface of the contact glass (12).

The above optical system (2 is a light source (21), a reflecting mirror (22) (23)
) (24), a lens (25), and a reflecting mirror (26), which illuminates the original set on the moving contact glass (12) with light from the light source (21), and removes the light from the original. Reflect the reflected light of 'a (22) (23)
(24), a lens (25), and reflection [(26) can lead to the copy processing section (3).

The copy processing section (3) has a photoreceptor drum (31) that rotates in one direction every time one copying operation is performed, and a charged chip P-chip is placed around the photoreceptor drum (31). t
(32), blank lamp (33), developing device (34)
), transfer charger (35), separation charger (36)
, and a cleaner (37) are arranged in this order, and the surface of the photosensitive drum (31), which is uniformly charged by the charging charger (32), is irradiated with reflected light from the original. An electrostatic latent image is formed, the static charge in unnecessary parts is eliminated by a blank lamp (33), and the developing device (34)
The toner image is visualized by the transfer charger (35), and the toner image is transferred onto copy paper by the transfer charger (35).
6) peels off the copy paper from the photoreceptor drum (31),
Toner remaining on the surface of the photoreceptor drum (31) can be collected by a cleaner (37).

The copy paper conveying section (4) includes paper feed rollers (41) (4
2), conveyance roller (43), registration roller (44),
Conveyance roller (45), conveyance belt (46), constant inspection device [1
(47), and a discharge roller (48). By driving either paper feed roller, copy sheets are fed one by one from the paper feed cassette (14) or (15), and the registration roller ( 44), the copy paper is sent to the copy processing section (3) in synchronization with the leading edge of the electrostatic latent image, the copy paper with the toner image transferred is fixed by the fixing device (47), and the copy paper is sent to the ejection roller (48). This allows the receiver to be discharged onto the tray (16).

FIG. 1 is a perspective view of the copying machine, schematically showing a part of the movement amount detection means.

The portion shown in FIG. 1 of the movement detection means is as follows:
The exposure slit (17) formed on the top surface of the copying machine body (1)
) Attach the first instruction plate (51) that extends parallel to the original lll! The amount of movement of the mounting table (11) in the exposure movement direction can be visually determined (see FIG. 2). Then, a predetermined position of a wire (54) stretched between a pair of pulleys (52) and (53) is fixed to a stay (55) vertically disposed at a predetermined position of the document table (11), and the above-mentioned pulley ( 53
) is connected to the driven pulley (56) via a clutch (not shown), and three guide pulleys (57) (58).
) (59) are arranged in a parallelogram shape, and these driven pulleys (56) and three guide pulleys (57) (58) (
59) and the wire (60) is stretched across the wires (60), and a second
Attach the indicator plate (61), position it at right angles to the exposure slit (17), and move the second indicator plate (61) to the position of the original platen (11) in accordance with the amount of movement vJ of the original platen (11). It is possible to visually determine the amount of movement of the document table (11) in order to move the document table (11) in a direction perpendicular to the movement direction (see FIG. 2) and move the second indicator plate (61) to a predetermined position.

Also, (the sword is the operation panel, and the print key (71)
, a numeric keypad (72), a display (73), a copy density setting key (74), and a horizontal selection key (74).
5), vertical selection key (76), input setting key (77)
, and an input start key (78).

FIG. 3 is a block diagram showing the electrical configuration of the main parts of the copying machine. (75)
, the vertical selection key (76), the input setting key (77), and the input start key (78), as well as the moving distance consisting of a rotary encoder, an optical reader, a frequency generator, etc. Detection part (82
) is applied. Then, the control signal from the microcomputer (81) is transmitted to the lens position setting section (81).
3) is applied.

FIG. 4 is a flowchart showing the operation of the image processing device.

First, it is confirmed that the leading edge of the document set on the document table (11) matches the first temporary instruction (51).

Then, in step (2), it is determined whether the input start key (78) has been operated and the original size input mode has been selected, and if it has not been selected, a normal copying operation is performed in step (2). On the other hand, if it is selected,
In step (2), it is determined whether the vertical selection key (76) is being operated. Then, press the vertical selection key (7
6) has been operated, in step ■, move the document table (11) to a predetermined position while looking at the second instruction board (61), and in step ■, press the input setting key (7).
7), the width of the document is set based on the signal from the moving distance detection section (82).

Next, in step ■, the horizontal selection key (75)
Determine whether or not the is being operated. If the operation has been performed, move the original table (11) to a predetermined position while looking at the first instruction plate (51) in step (2), and move it by operating the input setting key (77) in step (2). The length of the document is set based on the signal from the distance detection section (82).

Then, after performing the processing in step (2) or step (2) above, in step (2), the lens position setting section is set to By moving the lens (25) in step (83), the copying magnification is set, and by performing the copying operation in step [phase], a copy image corresponding to the original can be obtained.

On the other hand, if it is determined in step ■ that the vertical selection key (76) is not operated, step ■ is immediately determined, and step ■ is determined that the horizontal selection key (75) is not operated. If so, immediately proceed to step (2).

In the embodiments described above, the length and width of the document can be set and input, but it is also possible to allow only the length to be set and input. However, in this case, it is necessary to take care that the moving direction of the document aa table (11) becomes longer when setting the document, but the operation does not become particularly complicated.

It should be noted that the present invention is not limited to the above-described embodiments, and for example, when performing the original size input operation, the original placing table (11
) may be automatically moved at a low speed, and the input setting key (77) may be operated when the indicator plate coincides with the edge of the document.Furthermore, as shown in FIG. )
A marking (21') may be applied to a predetermined position of the document, and the original size input operation may be performed while looking at the marking (21'), and various other design changes may be made within the scope of the invention. Is possible.

<Effects of the Invention> As described above, the original size input device of the present invention exposes the original by moving the original placing table, and the size of the original can be set by moving the original placing table. This has the unique effect of simplifying the operation for inputting the size.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the copying machine, Fig. 2 is a diagram showing the relationship between the first and second indicator plates (51, 61) and the document table (11), and Fig. 3 is the main components of the copying machine. FIG. 4 is a flowchart showing the operation of inputting an irregular document size. FIG. 5 is a schematic diagram showing another embodiment. FIG. 6 is a schematic diagram showing the internal mechanism of the copying machine. figure. (11)...Document placement table, (77)...Input setting key, (78)...Input start key, (81)...Microcomputer as area setting means, (82)... A moving distance detecting section as a moving vJm detecting means.

Claims (1)

[Claims] 1. Place the original placed on the original placing table. Move the original table or optical section back and forth. It is exposed to light by Place the document mounting table or optical section on the It has a configuration that allows it to move at a lower speed than the In addition, the amount of movement of the document table or optical section It has a movement amount detection means for detecting the At the same time, the detection signal from the movement amount detection means is This function allows you to set the document size using the number as input. and a size setting means. Original size input device. 2. If the original table is moved manually. The scope of the above claims The document size input device described in item 1.