JPH0313434A - Paper feeding and separating device - Google Patents

Abstract

PURPOSE:To enable a change of a FRR system paper feeding and separating unit and a friction pad system paper feeding and separating unit in response to the necessity after the purchase of a business machine by disconnectably fitting a FRR system paper feeding and separating unit and a friction pad system paper feeding and separating unit facing to each other in the paper feeding side of a cassette or a tray. CONSTITUTION:A user fits a FRR system paper feeding and separating unit 11 in consideration of kinds of the decalcomania paper 3 to be used and the required degree of the reliability of paper feeding and separating and a price of the whole of a copying machine 1 or the like. A user also substitutes the friction pad system paper feeding and separating unit 12 for the FRR system paper feeding and separating unit 11 in response to the necessity.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paper feed separation device for office machines such as copying machines and printers.

Conventional technology Conventionally, office machines such as copiers and printers have been equipped with a paper feed separation device that separates and feeds sheets of paper stacked on a cassette or tray one by one. As such, an FRR type paper feed separation device and a friction pad type paper feed separation device are widely adopted.

Although the FRR type paper feed separation device has excellent separation performance and can feed and separate various types of paper from thin paper to thick paper, it has the drawbacks of having a large number of parts and high cost.

On the other hand, the friction pad type paper feed separation device has fewer parts per unit and is cheaper, but its separation performance is inferior to that of the FRR type paper feed separation device, and it also makes noise when separating thin paper. It has the disadvantage of causing

Problems to be Solved by the Invention In multi-stage paper feeding type copiers and printers equipped with multiple cassettes and trays, the paper feeding separation device provided corresponding to each cassette etc. is an FRR type paper feeding separation device. Or, it is integrated into a friction pad type paper feed separation device and is fixed to the copying machine body or the printer body. For this reason.

When purchasing a copying machine or printer, users should either purchase one equipped with an FRR type paper feed separation device with emphasis on reliability of separation performance, or one with a friction pad type paper feed separation device with emphasis on price. I am forced to choose between purchasing one equipped with a paper separation device.

Therefore, the paper feed separation device corresponding to the top cassette and tray, where paper replacement is easy, is an FRR type paper feed separation device, and the paper feed separation device corresponding to other cassettes and trays is a friction pad type paper feed separation device. Copying machines and printers have been proposed as separation devices. However, the friction pad type paper feed separation device is inconvenient for users who use a large amount of paper, which is difficult to feed and separate.

Means to Solve the Problem: An office machine equipped with a cassette or tray loaded with paper is equipped with a unitized FRR type paper feed separation section and a unitized friction pad type paper feed separation section. , the FRR type paper feed separation unit and the friction pad type paper feed separation unit are removably attached to face the paper feed side of the cassette or tray.

By removably attaching the FRR-type paper feed separation section that is made into a functional unit or the paper feed separation section that uses the friction pad method that is made into a unit, it is possible to obtain an office machine that is equipped with a paper feed separation section that meets the user's needs. It will be done.

Example An embodiment of the present invention will be described based on the drawings.

A copying machine 1, which is an office machine, has a copying machine main body 2 that has a built-in copying mechanism (not shown), and a paper feed section 9 that stores multiple cassettes 4 to 8 loaded with transfer paper 3 that is paper. It is made up of.

Inside the paper feeding section 9, a pickup roller 10 is disposed opposite to the paper feeding side of the first and second cassettes 4 and 5.
and a unitized FRR type paper feed separation section 11 are provided, and a friction pad type unitized unit with a pickup roller 10 is provided facing the paper feeding side of the cassettes 6 to 8 in the third to fifth stages. A paper feed separating section 12 is provided.

Note that the FRR type paper feed separation section 11 and the friction pad type paper feed separation section 12 are detachably attached. Further, in the paper feed section 9, there is provided a vertical conveyance system for transporting the transfer paper 3, which has been fed and separated one by one by the paper feed separation section 11.12, toward the inside of the copying machine main body section 2. A section 13 is provided.

Here, the FRR type paper feed separation section 11 has an auxiliary stay 15.1 between a pair of unit side plates 14 facing in parallel.
6 is fixed, and a guide plate 17 is fixed to the auxiliary stay 15.
．． 18 is fixed, and a guide plate 19 is fixed to the auxiliary stay 16. Further, a feed roller 20 is located between the auxiliary stay 15 and the guide plate 17°18.
is provided, and a reverse roller 21 is provided surrounded by the auxiliary stay 16 and the guide plate 19.

The reverse roller 21 is resiliently brought into contact with the outer peripheral surface of the feed roller 20 by a spring 22 and an arm 23.

Next, the friction pad type paper feed separation section 12
Similar to the FRR paper feed separation section 11, the auxiliary stay 15. is provided between a pair of parallel unit side plates 14.
16 is fixed, and a guide plate 17.1 is fixed to the auxiliary stay 15.
8 is fixed, and a guide plate 19 is fixed to the auxiliary stay 16.

Then, the auxiliary stay 15 and the guide plate 17°18
A feed roller 24 is disposed surrounded by the auxiliary stay 16 and the guide plate 19, and a pad 26 held on a pad stand 25 is disposed surrounded by the auxiliary stay 16 and the guide plate 19.

Note that the pad stand 26 is attached with stepped screws 27, and the pad 26 is in contact with the outer peripheral surface of the feed roller 24.

In such a configuration, the unitized paper feed separation section 1
1.12 is attached removably, and a friction pad type paper feed separation unit 12 is installed in place of the FRR type paper feed separation unit 11, or.

FR instead of the friction pad type paper feed separation section 12
An R-type paper feed separation section 11 can be attached. Therefore, the user may install the FRR type paper feed separation unit 11 or , a friction pad type paper feed separation section 12 can be attached.

In this embodiment, the pickup roller 1o is of a fixed type, but the pickup roller 10 may be included in the unitized paper feed separation sections 11 and 12.

Effects of the Invention As described above, the present invention includes a unitized FRR type paper feed separation section and a unitized friction pad type paper feed separation section, and these paper feed separation sections are connected to the paper feed of a cassette or tray. By removably attaching it to the side, it is possible to install the FRR type paper feed separation unit and the friction pad type paper feed separation unit according to the user's request, improving the reliability of paper separation performance and price. We are able to provide office machines that meet the needs of users in terms of
Even after purchasing an office machine, it is possible to replace the FRR type paper feed separation unit with the friction pad type paper feed separation unit as needed.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a simplified front view of the entire copying machine, FIG. 2 is a longitudinal sectional front view showing the FRR type paper feed separation section, and FIG. FIG. 3 is a longitudinal sectional front view showing a friction pad type paper feed separation section. 1... Office machine, 3... Paper, 4-8... Cassette, 11... FRR type paper feed separation unit, 12... Friction pad type paper feed separation unit Applicant Person Corporation Ricoh 0

Claims (1)

[Claims] In an office machine equipped with a cassette or tray loaded with paper, a unitized FRR type paper feed separation section and a unitized friction pad type paper feed separation section are installed,
A paper feed separation device characterized in that the FRR type paper feed separation unit and the friction pad type paper feed separation unit are detachably attached to face each other on the paper feed side of the cassette or the tray.