JPS6097341A - Copying machine - Google Patents

Abstract

PURPOSE:To set the size of copy forms without errors even if an operator is not skilled in discrimination of the size of originals, by displaying the form size of an original in accordance with a width determining operation of the original. CONSTITUTION:For example, when the original of A4 size is copied to a copy form, the original is placed in the gap part between guide members 16a and 16b, and guide members 16a and 16b are slid properly to perform the width determining operation of the original form, and then, the front end part of a shielding plate 20 stuck to the guide member 16a is moved to a detecting part of a detecting sensor 24 arranged in a position corresponding to breadthwise dimensions of A4 size, and the size is discriminated in a controller 30 by the detection signal from the detecting sensor 24, and as the result, A4 is displayed visually on a display part 34. Consequently, failures of copying due to errors of copy forms are prevented even if the operator is not skilled in disrimination of the original size.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a copying machine equipped with a document feeding device.

[Prior art]

In recent years, in order to improve the efficiency of copying documents, etc., various types of copying machines have been commercialized that are equipped with a document feeder that transports and sets a copy document to a predetermined position on a platen for the convenience of users. There is.

When using this type of copying machine, a document is first placed on a spaced apart portion of a pair of document guide members that are slidably disposed opposite to each other in the vicinity of a document insertion opening of a document feeder. Next, the document guide member is slid appropriately to determine the width of the document and to bring the leading end of the document into the document insertion slot. Furthermore, the document is transferred by the document feeder, set at a predetermined position on the platen, and after setting copying conditions (number of copies, selection of copy paper size, etc.) on the operation panel, press the start key to start copying. Make copies.

In such a copying machine, if an operator is not familiar with determining the paper size of a copy document, a copying error may occur due to an error in setting the copy paper size, and there is a risk that part of the image information may be omitted. In addition, since most of the copy paper is approximately the same size as the original, there is a drawback that it is troublesome to set the size of the copy paper each time.

[Purpose of the invention]

In view of these circumstances, it is an object of the present invention to provide a copying machine that sets copy paper noise by determining and displaying → noise of a document from the width dimension of the document.

[Structure of the invention]

The present invention includes a document feeder that transports and sets a document to a predetermined position on a platen in a copying machine body, and a document that is slidably disposed in a direction perpendicular to the direction in which the document is transported by the document feeder. A sensor operation member attached to a part of the guide, and a plurality of document width detection devices arranged at intervals along the sliding direction of the document guide and sequentially detecting the seven-pin operation 41 as the shrine moves. a sensor, a controller that determines the document size based on the detection output of the document width detection sensor based on the relationship between the document width and the document size, and a display 2 that displays the size of the Ibr document based on a determination signal from the controller. By providing the apparatus, the paper size of the original document is determined and displayed based on the width dimension of the original document, and the size of the copy paper is set.

〔Example〕

Hereinafter, the present invention will be described in detail with reference to Examples.

'iIJ] In the figure, a document feeder 12 is arranged on the upper surface of the copying machine main body 1o so as to cover the platen glass. A pair of guide members 16a and 16b are provided near the document insertion slot 14 provided on one side of the document feeder 12.
A document guide 18 is provided. These guide members 16a and 16b slide in a direction perpendicular to the direction in which the document is transported by the document feeder 12 to determine the width of the document, and also to allow the leading end of the guide member to face a predetermined position in the document insertion slot J4. It is configured.

As shown in FIG. 2, rack members 17a and 17b are fixed to the guide members 16a and 16b, respectively, and the teeth of these rack parts +jJ' 17a and 17b are meshed with the eleventh pinion gear.

Therefore, when one guide member +A' l 6 a is pressed in the horizontal direction and moved a predetermined distance, the other guide member 16
b is one guide member 1 with the pinion gear 19 as the center.
It moves by a distance equal to the movement distance of 6a. Furthermore, a shielding plate 20 extending downward is provided at a predetermined location on one of the guide members 16a.

The tip of this shielding plate 2 () is connected to four document force/size detection sensors 22 arranged along the sliding direction of the guide member 16a.
．． It is arranged so as to face each detection section of 24, 26, and 28. In this case, a light transmission type sensor such as a photoelectric sensor is used as the detection sensor 22, 24, 26, 28.

Furthermore, when the width of the document is determined by sliding the guide members 16a and 16b as appropriate, each detection sensor 22, 24, 26, 28 detects the paper size 85 according to the JIS standard in relation to the shielding plate 20. Set the positions corresponding to the respective width dimensions of A4 size, 84 size, and A3 size.

On the other hand, the signals detected by each of the detection sensors 2, 2, 24, 26, and 28 are sent via the controller 3o to a display section 34 provided on the operation panel 32, and the display section 34 displays the size of the document paper. "B5" size, "A4" size, "B4" size,
Each image is digitally displayed as "A3" size.

The display panel 32 is provided with a copy number designation key 36, a copy start key 38, a copy paper size selection key 40, and the like. The copy paper size selection key 40 is
This key is used to preferentially display the paper size on the display unit 34. That is, in many cases, the noise of the original paper and the size of the copy paper are matched, so that the size of the original paper is displayed on the display section 34 without matching the size of the copy paper.

However, there are cases where the original paper size and the copy paper size must be different from each other due to requests for standardization of paper sizes during filing.

In such a case, the operator presses the copy paper size selection key 40 to specify the size of the copy paper.

At this time, the specified size is displayed on the display section 34. When the operator presses the copy start key 38, copy paper of the size currently displayed on the display section 34 is selectively supplied from a copy paper tray (not shown).

Next, the operation of the copying machine according to the present invention configured as described above will be explained.

A case in which an operator copies, for example, a Δ4 size original onto a copy sheet will be explained. First, a document is placed on the spaced apart portions of the guide members 16a, 16b, and the guide members 16a, 16b are slid appropriately to determine the width of the document paper. '
The detection sensor 2 is located at a position where the tip of the shielding plate 2 () attached to 16a corresponds to the width dimension of the Δ4-size manuscript paper.
Move to the detection part 4. The detection signal output from the detection pin 24 is inputted to the controller 30, and the size is determined based on the relationship between the width of the document and the noise of the document paper.

This determination result is manually input to the display unit 34, and the paper size of the manuscript paper is visually displayed as "Δ4". When the operator operates the copy start key 38 after specifying the number of copies using the number specification key 36, a signal is sent to the start control circuit of the feed roller of the Δ4 size copy paper tray, the feed roller is started, and the predetermined number of copies is made. Copying is done.

Also, if the width of the detected document is an intermediate size according to the JIS standard,
For example, if the size is intermediate between "Δ4" size and "B4" size, if the circuit is configured to detect the larger size, that is, "B4" size, part of the image information of the original will be missing. It is possible to avoid inconveniences such as copying.

Although the embodiments have been described above, the present invention is not limited thereto. For example, a magnetic sensor or a microswitch device may be used as the document size detection sensor. Further, the present invention can also be used in an automatic document feeding type copying machine in which a document is fed from a document supply tray to a document feeding device using a feed roller or the like. Furthermore, it can be used in a type of copying machine that can appropriately reduce the size of an image by controlling the optical system and the drive unit.

〔Effect of the invention〕

As described above, according to the copying machine of the present invention, the paper size of this document is displayed in conjunction with the width determination operation of the document. Therefore, even if the operator is not familiar with determining the document size, it is possible not only to prevent copying errors due to mistakes in the copying paper, but also to save the trouble of setting the → size of the copying paper again.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a copying machine according to an embodiment of the present invention, and FIG. 2 is an explanatory diagram showing the relationship among a document guide, a document size detection sensor, a display, and a copy paper selection key of this copying machine. 20... Shielding plate, 22.24.26.28... Document size detection sensor, 30... Controller, 34... Display section, 40. ...Copy paper selection key. Applicant: Fuji Xerox Co., Ltd. Representative: Patent Attorney Ume Yamauchi Leaves work District 1

Claims (1)

[Claims] A document feeder that transports and sets a document to a predetermined position on a planar plate, and a part of a document guide that is slidably disposed in a direction perpendicular to the direction in which the document is transported by the document feeder. a plurality of document width detection sensors that are arranged at intervals along the sliding direction of the document guide and sequentially detect the document width as the sensor operation member moves; A copying machine characterized by comprising: a controller that determines the original size based on the detection output of the original width sensor; and a display that displays the original size based on a determination signal from the controller.