JPH05105264A - Copier - Google Patents

Abstract

PURPOSE:To facilitate discrimination of respective copying conditions, contents or the like in a case where consecutive copying is achieved on transparent paper sheets of OHP paper sheet or the like. CONSTITUTION:When a user orders to make a copy on an OHP paper sheet 11 through an operating part 9, a paper sheet supplying/discharging mechanism 7 is controlled at a control part 8 as follows. First, a non-transparent paper sheet 21 is supplied from a paper sheet supplying tray 2, and discharged to a copy receiver 6 without making a copy. Then, an OHP paper sheet is supplied from a paper sheet tray 1. After a copy is made by means of a copying mechanism 4, and the copied paper sheet is discharged onto the previously discharged non-transparent paper 21 in the copy receiver 6. This arrangement allows another non-transparent paper sheet 21 to be automatically inserted between the OHP paper sheets which are copied and discharged, leading to reduction of the respective labors and easy discrimination of the respective copying conditions or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a copying machine suitable for continuous copying on transparent paper such as OHP paper.

[0002]

2. Description of the Related Art In recent years, OHPs (overhead projectors) have been widely used in fields such as classes, conferences, research meetings, and lectures. The OHP is a transparent device for enlarging and projecting characters, diagrams, etc. drawn on a sheet of paper. Therefore, the chances of copying the contents of other printed matter or the like onto such OHP paper with a copying machine are increasing.

[0003]

However, in the case of copying on OHP paper by a conventional copying machine, if several OHP papers discharged to the copy receiver overlap, the papers are transparent and it is difficult to identify each. There was a problem. In other words, it was difficult to determine the copy status and contents.

For this reason, each person has attempted to solve the problem by inserting another opaque paper between the copied OHP sheets, but there is a problem in that each person has troublesome labor.

The present invention has been made in order to solve the above problems, and an object thereof is to identify each copy state, contents, etc. when continuously copying on transparent paper such as OHP paper. It is to provide a copying machine that makes it easy.

[0006]

In order to achieve the above object, in the copying machine of the present invention, when it is detected or instructed that the copy destination paper is a transparent paper, the copying is terminated and the paper is discharged. It is characterized by comprising a control means of a sheet feeding / discharging mechanism for inserting another opaque sheet between the transparent sheets.

[0007]

In the copying machine of the present invention, when a transparent sheet is detected by a sensor or the operator gives an instruction to make a copy on the transparent sheet, the sheet is separated between the transparent sheets to be copied and discharged. The transparent opaque paper is automatically inserted to make it easy to identify each one, and the labor of each work is reduced.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings.

FIG. 1 is a schematic diagram showing the configuration of an embodiment of the present invention. As components of the present embodiment, 1 and 2 are paper trays, 3 is a paper pointing portion, 4 is a copying mechanism, 5 is an original set glass table, 6 is a copy receiver, 7 is a paper feeding / discharging mechanism, and 8 is a controller. , 9 are operation units.

Copy papers of various sizes are stocked in the paper trays 1 and 2. When making a copy on OHP paper, either one of them may be used for stocking, or paper may be fed one by one from the paper feed unit 3.
Here, for example, it is assumed that OHP paper 11 is stocked in the paper tray 1 and opaque paper 21 of the same size as the OHP paper 11 is stocked in the paper tray 2.

The sheet feeding / discharging mechanism 7 is mainly composed of various roller groups. Reference numerals 71 and 72 denote paper feed rollers provided corresponding to the trays 1 and 2, 73, 74, 75, 76 and 77.
Is a guide roller, and 78 is a paper discharge roller. OHP paper 11 delivered from tray 1 by paper feed roller 71
Is sent to the copying mechanism 4 by the guide rollers 75, 76, 77. When the opaque paper 21 is sent out from the tray 2 by the paper feed roller 72, the opaque paper 21 is copied by the guide rollers 73, 74, 76, 77 into the copying mechanism 4.
Sent to. Further, when a sheet is inserted from the copy sheet index unit 3, the sheet is sent to the copying mechanism 4 by the guide roller 77.

The copying mechanism 4 is provided with an optical system 41 and a copy drum 42. The image of the original document placed on the original set glass table 5 is transferred to the copy drum 42 by the optical system 41 and further fed, for example, OHP. A copy drum 42 transfers the toner image onto a sheet, and the toner image is fixed and sent out. The sent copy paper is discharged to the copy receiver 6 by the paper discharge roller 88.

The copying mechanism 4 and the paper feeding / discharging mechanism 7 described above are controlled in order by the control unit 8 in response to a user's instruction from the operation unit 9. The above-mentioned mechanisms themselves are no different from the conventional copying machines. In this embodiment, when a copy to the OHP paper 11 is instructed by the mode setting or the like from the operation unit 9, first, the opaque paper 21 is fed from the tray 2,
The sheet is discharged to the copy receiver 6 as it is without copying. Next, the OHP paper 11 is fed from the tray 1, and is copied onto the opaque paper 21 which has been previously ejected. The control unit 8 includes, for example, a microprocessor and the like, and can be configured to perform the above-mentioned control by the processing thereof.

The operation procedure of this embodiment will be described below with reference to the flowchart of FIG. The control unit 8 performs control processing based on this procedure.

(1) The user first sets the copy mode such as "transparent paper" by the mode setting of the operation unit 9. This is taken into the control unit 8.

(2) Next, the user sets a document and presses the "copy start" button of the operation unit 9. In response to this, the control unit 8 starts the following copy operation.

(3) When it is set in (1) above that copying to transparent paper is set, the opaque paper 21 in the tray 2 is discharged to the copy receiver 6 without performing copying at first. If it is a normal copy mode, that is, a copy mode to the opaque paper 21, the copy operation is performed without discharging the paper.

(4) According to the copy mode of (1) above,
Paper is fed from a predetermined tray (tray 1 for transparent paper) and a document image is copied.

(5) When the continuous copy mode is set, the number of sheets is incremented by 1, and the above steps (3) to (5) are repeated until the set number is reached.

(6) When it is not continuous copy or when the number of copies reaches the set number in continuous copy, the paper is discharged and the process is terminated.

By the above operation, the opaque paper 21 is automatically provided between the copied OHP papers 11 and other transparent papers.
Will be inserted, and the copy state and the like will be easily identified. As in the past, the effort of inserting opaque paper between transparent papers by the user's labor is saved, and OHP
The efficiency of continuous copying of paper is improved.

Of course, the present invention can be applied to the case where the OHP sheet is fed from the sheet index portion 3 as described above. In addition, one tray is used, and opaque paper and transparent paper are alternately stacked and stocked one by one, and paper is fed from the same tray to operate in the same manner as in the above embodiment. Thus, it is possible to insert an opaque paper between the transparent papers after copying. Further, in the above embodiment, an example in which the opaque paper is inserted by the copy mode setting has been shown. An opaque paper may be inserted between transparent papers such as the OHP paper. As described above, the present invention can be applied in various ways in accordance with the gist thereof and can take various embodiments.

[0023]

As is apparent from the above description, according to the copying machine of the present invention, when copying on transparent paper, an opaque paper can be automatically inserted between the transparent papers. It is easy to determine the copy status and contents of the above, and the efficiency of the work in the case of continuous copying on transparent paper is improved.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation procedure of the above embodiment.

[Explanation of symbols]

1, 2 ... Paper tray, 3 ... Paper hand portion, 4 ... Copying mechanism, 5 ... Original setting glass table, 6 ... Copy receiving,
7 ... Paper feeding / discharging mechanism, 8 ... Control unit, 9 ... Operation unit.

Claims (1)

[Claims] 1. A sheet feeding / discharging mechanism for inserting another opaque sheet between the transparent sheets to be discharged when the sheet to be copied is detected or instructed to be a transparent sheet. A copying machine, characterized by comprising: