JPS63249865A - Copying machine - Google Patents

Abstract

PURPOSE:To prevent the generation of an image-cut by canceling an automatic copying start mode, unless the form of a necessary size is set, after an original has been set at the time of the automatic copying start mode. CONSTITUTION:By a sensor part 14, a form size required for a transfer is derived from the size of an original stored in a RAM 12 previously and a copying magnification inputted from a copying magnification key, and whether its form size has been set to feed paper cassettes 8a, 8b containing its form size or not is discriminated. When the form size does not fit, the feed paper cassette which is set a present is discriminated, and the feed paper cassette is brought to a setting exchange from the first cassette 8a to the second cassette 8b, or from the second cassette 8b to the first cassette 8a. Subsequently, the form size of the feed paper cassette which has been brought to the setting change is discriminated, and when the form size still does not fit, an n2 automatic copying start mode is canceled and a display for requesting to replace the feed paper cassette is executed, and the copying processing is not executed. In such a way, the generation of an image-cut, etc., is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a copying machine having an automatic copy start mode that detects that an original is set and automatically starts copying operation.

(b) Conventional technology In recent years, copiers have been proposed that detect when a document is set and automatically start copying in order to make copies of multiple documents (including books) in succession. ing.

(C) Problems to be Solved by the Invention However, when attempting to continuously copy originals of different sizes, copying starts automatically when the originals are set. magnification, etc.)
Copying is performed even when the size of the paper (transfer paper) does not correspond to the size of the paper (transfer paper), which may cause problems such as image cut-off.

For example, when mixing B5 size originals and A4 size originals and making continuous copies at the same size, even if B5 size paper is set, copying will start automatically when the original is detected as being set. Image clipping may occur.

In particular, when continuous copying is performed in the automatic copy start mode, all that is required is to change the document (turn over the pages of a book), which makes the operation monotonous, and it is easy to forget to change the paper.

This invention detects the size of an original when it is set in the automatic copy start mode, and cancels the automatic copy start mode if there is no paper of a size that corresponds to the original size and copying conditions. To provide a copying machine which prevents inconveniences such as image cut-off from occurring by preventing copying even if a copy is set.

(d) Means for Solving a Problem This invention has means for selecting between a normal mode and an automatic copy start mode, and a means for detecting that an original is set, and when in the automatic copy start mode, the original is set. A copying machine that automatically starts a copying operation later includes a document size detection means for detecting the size of a set document, and an automatic copy start mode when there is no paper of a size corresponding to the size of the document and each copying condition. The present invention is characterized by comprising a mode release means for releasing the mode.

(e) Complementary function In the copying machine of the present invention, the size of the set original is detected by the original size detection means, and when paper of a size corresponding to the size of the original and each copying condition is set, Copying will start automatically. However, if paper of a size corresponding to the detected original size and each copying condition is not set, the automatic copying start mode is canceled and the copying operation is not started.

(fl Embodiment FIG. 3 is a perspective view showing the appearance of a copying machine which is an embodiment of the present invention. At the front of the upper surface of the copying machine main body 1 is an operation panel 2.
is provided. The operation panel 2 includes operation keys such as a mode switching key for switching between a normal mode and an automatic copy start mode, a copy magnification setting key, and a print key, and a display panel that displays the modes and settings.

A light emitting element unit 3 is provided below the operation panel 2, and a light receiving element unit 4 is provided at the rear of the copying machine main body 1. reflected by the light receiving element unit 4
guided by. The light-emitting element unit 3 and the light-receiving element unit 4 are composed of a plurality of light-emitting elements and light-receiving elements, and each light-emitting element and light-receiving element is installed at a position unique to each document size. Due to the original placed on the original platen 5,
The size of the original on the original platen 5 can be detected by determining which light emitting element outputs the infrared rays and is blocked. Note that the open/closed state of the document cover 7 can also be detected by this light emitting element and light receiving element.

FIG. 4 is a diagram showing the relationship between the light emitting element and the light receiving element. As is clear from the figure, infrared rays output from the light emitting element 3a are reflected by the reflecting plate 6 and enter the light receiving element 6a.

The reflector 6 swings when the document cover 7 is opened and closed, and due to this swing, infrared rays from the light emitting element 3a enter the light receiving element 4a and the document size is detected immediately before the document cover 7 is closed. The timing of the document cover 7
It is determined that the document has been set when the document is closed.

A paper feed force set is provided on a side surface of the copying machine main body 1 and is detachable from the copying machine main body 1. Among the paper feed cassettes, the one mounted on the upper stage is a first cassette/gutter 8a, and the one mounted on the lower stage is a second cassette 8b. A plurality of types of paper feed cassettes are provided according to each paper size, and each paper cassette stores a predetermined size of paper (transfer paper). Each paper feed force set is marked with a marking indicating the size of the paper to be stored, and the marking is read and stored when the paper feed force set is attached. In this embodiment, two paper feed cassettes can be installed in the copying machine main body 1, but any number may be used, and a manual cassette may also be installed. In a copying machine to which a plurality of paper feed power sets can be installed, one of the installed paper feed cassettes can be selected and set, and paper can be fed from that paper feed cassette.

FIG. 2 is a block diagram of the control section of the copying machine. CPU
The I/O is connected to the sensor unit 14, input/display unit 15 . A copy process unit 16 is connected.

The sensor section 14 includes the light emitting element unit 3. It includes various sensors such as a document size and document cover opening/closing sensor corresponding to the light receiving element unit 4 and a paper feed cassette detection sensor. The document size, the opening/closing state of the document cover 7 (document set state B), the paper size (type of paper feed cassette), etc. are detected and stored in the RAM 12.

The input/display unit 15 corresponds to various operation keys and the display panel of the operation panel 2, and the CPU 10 inputs copy conditions (automatic copy start mode, copy machine magnification, etc.) input by operating the various operation keys. , and stored in RAMI2 according to the OMII program.

The copy process unit 16 is a device such as an optical device and a paper feed device that performs a copy process, and it records the input status from the sensor unit 14 stored in the RAMI 2 and the copy conditions input from the operation keys of the input/display unit 15. FIG. 1 is a flowchart showing the processing procedure of a control program stored in advance in the ROM 11. In FIG.

First, when the power is turned on, initial operations such as initializing the mirror unit, warming up the fixing roller, and clearing the memory are performed in step nl (hereinafter, "step ni" is simply referred to as "ni").

When the fixing roller has been warmed up and is ready for copying, I2 reads inputs from various sensors and key operations. If there is any input at I3, the corresponding processing will be performed as follows. If there is no input, display control and other processing are performed in I4, and the process returns to I2.

For example, if the copying magnification is manually adjusted from the operation panel 2 at step I5, that magnification is stored in the memory at step I6. In addition, when I7 detects that a paper cassette is installed, I8 determines whether the installed paper cassette is the first cassette side or the second cassette side, and I9 or nlo determines whether the installed paper cassette is the first cassette side or the second cassette side. Memorize the paper size of the paper cassette.

<Normal copy mode> First, when a document is set on the document table 5 and the document cover 7 is closed, this is determined at nti, and the size of the set document is stored at n12. Furthermore, a flag Fx indicating the set state of the original is set. At n13, the state of the flag Fm representing the automatic copy start mode is determined, and it is in the reset state in the normal copy mode.

Next, by operating the print key on the operation panel 2, this is determined at n14, and the copying process is performed at n15. In this copying process, the original placed on the document table 5 is scanned a number of times according to the set number of copies, and the number of copies is made according to the number of copies (n
l6). When the copying process is completed, the flag Fx indicating the set state of the original is cleared at n17, and the process returns to I2.

Automatic copy start mode> By operating the mode switching key provided on the operation panel 2, the automatic copy start mode is set.

When the mode switching key is operated, this is determined at n18, and the flag Fm representing the automatic copy start mode is determined at n19.At this point, it is in the reset state, so n2
The flag Frn is set at 0 to set the automatic copy start mode.

At this time, if Fx is still in the reset state, that is, no original is set, the process returns to I2. In this state, if a document is set on the document table 5 and the document cover is closed, this is determined at nil, the document size is stored at n12, and the state of the flag Fm is determined at n13.

At this time, since Fm is in the set state, the process proceeds to n22 to find the paper size necessary for transfer. This paper size is determined from the previously stored original size and the copy magnification input from the copy magnification key, and in step n23 it is determined whether the paper size is set in the paper feed cassette containing the paper size. When the paper sizes do not match, the currently set paper feed power set is determined in n24, and the paper feed power set is changed from the first cassette to the second cassette or from the second cassette to the first cassette in n25 or n26. Exchange settings to . Then, use n27 to determine whether the paper size of the replaced paper cassette is the required one, and if the paper size still does not match, reset Fm with 028, cancel the automatic copy start mode, and set the paper cassette with n29. Displays a request for replacement. That is, even in the automatic copy start mode, if the paper size does not match, the automatic copy start mode is canceled and no copy processing is performed.

If the paper size is found in n23 or n27, the process advances to n15 to perform copying processing. That is, copying is automatically started by setting a document on the document table 5 and closing the document cover 7.

In the example above, the original is set after setting the automatic copy start mode. However, if you set the original and then operate the mode switch key to switch to the automatic copy start mode, you can set the original without setting the original. As a result, the Fx enters the set state at n12, so the state is determined at n21, and it is determined whether or not the necessary paper has been set for the original, and the copying process is performed (n21-■-rL22・・・・
). Therefore, if the automatic copy start mode is canceled in n28 because the paper does not fit, the automatic copy start mode will be set and copying will start by operating the mode switch key after setting the necessary paper. be done. Furthermore, for the second and subsequent originals, copying is automatically started just by setting the original.

Note that a flag Fm indicating that the mode is automatic copy start mode is
If you operate the mode switch key when is set, n
This is determined in step 19, and the flag Fm is reset in step n30 to enter the normal copying mode (a mode in which copying is started by operating the print key). That is, each time the mode switching key is operated, the setting and cancellation of the automatic copy start mode are reversed.

Note that in the copying machine of this embodiment, the required paper size is selected based on the size of the original set on the document table 5 and the copying magnification, but in a copying machine with editing functions (trimming and masking functions), The necessary paper size may be selected depending on the range to be edited and copied. Furthermore, although this embodiment shows an example of a copying machine that automatically starts copying when the document cover is closed, it is equipped with an automatic document feeder and automatically starts copying when the document is set in a fixed position. Even if the copying machine to be started determines whether or not paper of the required size is set after loading the original, and if the required paper is not set, the automatic copy start mode is canceled. good.

(g1 Effects of the Invention In the copying machine of this invention, after an original is set in automatic copy start mode, it is determined whether or not paper of the required size is set, and if it is not set, automatic copy start mode is activated. Since the image is canceled, the image will not be copied as is on paper of an inappropriate size, and it is possible to prevent the image from being cut off or the like.

[Brief explanation of the drawing]

FIG. 1 is a flowchart showing the processing procedure of a copying machine according to an embodiment of the present invention, FIG. 2 is a block diagram of the control section of the copying machine, FIG. 3 is a perspective view showing the external appearance of the copying machine, and FIG. The figure shows the arrangement of sensors for detecting paper size and opening/closing of a document cover in the copying machine. 3-light emitting element unit, 4-light receiving element unit, 6-reflection plate.

Claims (1)

[Claims] (1) It has a means for selecting a normal mode and an automatic copy start mode, and a means for detecting that a document has been set;
Copying machines that automatically start copying after setting an original in automatic copy start mode include an original size detection means for detecting the size of the set original, and paper of a size corresponding to the original size and each copying condition. A copying machine comprising: a mode canceling means for canceling the automatic copying start mode when the automatic copying start mode is not in use.