JPS60247657A - Control system for copying machine - Google Patents

Abstract

PURPOSE:To release the mulfunction display in the stage of defective feed-in in accordance with the output from a detecting means which detects any operation among the operations for opening and closing a platen cover in an original imposing part, removing the defectively fed-in original and setting a mode for imposing the original from the original imposing part. CONSTITUTION:The control system is constituted of a read-only-memory (ROM) 1 which stores the program for controlling the copying operation, a central processing unit (CPU) 2 which executes the control process for the copying operation and malfunction display according to the program stored in the ROM1, a control panel 3 which inputs the operating contents of the copying machine thereto, a random-access-memory (RAM) 4 for storing data, a display part 5 which displays the mulfunction, the number of copies, etc., a platen switch P.SW which detects the opening and closing of the platen cover in the original imposing part and an input switch I.SW which detects the defectively fed-in original remaining in an original input device. The CPU2 releases immediately the FAIL display when the platen cover is opened or the defectively fed original is removed in an SADH mode.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a control system for a copying machine having a document input device for feeding a document to a document placement section.

[Prior art]

Conventionally, in order to simplify the effort of feeding originals, copying machines have been equipped with original input devices that use a conveyor belt or air pressure to feed the originals stacked on the original table one by one onto the original platen. There is something attached.

In a copying machine equipped with such a document input device,
If a document feeding failure occurs for some reason, a malfunction display indicating that the document feeding failure has occurred will be displayed, and copying will no longer be possible.

However, in conventional devices, such a malfunction display can be cleared by eliminating the cause of the feeding failure and turning the power switch off once and then turning it on again. There was a problem in that the operations required to restore the system to a possible state were troublesome.

[Purpose of the invention]

The present invention was made in view of the above problems, and its purpose is to easily cancel the malfunction display when a document input device fails due to multiple document feeding, and to easily release the malfunction display by placing the document directly on the original stacking section. It is an object of the present invention to provide a control method for a copying machine that allows immediate copying.

[Structure of the invention]

The present invention can perform any of the following: opening/closing the document holding cover of the document placement section, removing a document that has failed to feed, and setting the document placement mode (platen mode) directly from the document placement section. A detection means for detecting such an operation is provided, and based on the detection output of this detection means, a malfunction display in the event of a document feed failure is canceled, and copying by directly placing the document on the document placement section is permitted. This is what I did.

〔Example〕

FIG. 1 is a block diagram showing an embodiment of the present invention,
A read-only memory (ROM) 1 that stores programs for controlling copying operations, a central processing unit (CPU) 2 that executes control processing such as copying operations and malfunction display according to the programs stored in this ROM1, and An operation panel 3 for inputting operation details, a display section 5 for performing random access for temporary data storage, a platen switch p-sw for detecting opening/closing of the document holding plate (platen cover) of the document placement section, and inside the document input device. Input switch S that detects that there is a document that has not been fed properly.
It is composed of W.

In this configuration, the semi-automatic document handler mode (
+1! There are ADI (mode) and large document handler mode (LDH mode) in which documents larger than this are fed from the document input device, but in each of these modes, a malfunction display (hereinafter referred to as F
If there is an AIL display), the FAIL display is canceled by the process shown in the flowchart of FIG.

In other words, in the 5ADH mode, the CPU 2 determines whether the platen cover has been opened or not, and whether or not a document with a feeding failure has been pulled out, depending on the state of the platen switch P-8W and the input switch. If detected (step 11.12), when the platen cover is opened or when the document that has failed to feed is pulled out, the FAIL display is immediately canceled (step fl 3 ).

On the other hand, in LDH mode, operation A? Step 16) to detect whether or not the platen mode is selected on the panel;
Cancel the FAIL display.

In this state, copying is possible in the platen mode, that is, by manually placing the original on the original placing section. However, after the FAIL display is canceled, if the LDI mode is selected again or if a document is input to the document input device, the FAIL display is restored through the processing of steps 14 and 15 (step 17).

This is it! l) Copying operations using the original input device and copying operations in LDH mode after the FAIL display is canceled are prohibited. This prohibition of the copying operation is canceled after the cause of the document feeding failure is resolved.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, it is possible to extremely easily cancel the malfunction display caused by a document feed failure and copy in the grating mode immediately. This has the effect of making the machine easier to use.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart showing an operation for canceling a malfunction display. 1...ROM, 2...CPU, 3...Operation panel, 5...Display section, p--platen switch, l
-8W-...Inzo, Toswitch.

Claims (1)

[Claims] In a control system for a copying machine that has a document input device that feeds a document into a document stacking section and displays a Kp operation when a document feed is defective, it is possible to open/close the document holding cover of the document platform and detect a document feed failure. A detecting means is provided to detect any of the following operations: pulling out a document that has failed, or setting the document loading mode directly from the document loading section. A control method for a copying machine that cancels the malfunction display at the time of printing and allows copying by directly placing an original on the original placing section -\.