JPS62230538A - Copying machine - Google Patents

Abstract

PURPOSE:To make a function alterable to a paper feeding mode different in type economically only providing for two types of units, by installing a paper feeding input device in a paper feeding mechanism via a clutch. CONSTITUTION:A connector of a manual feed unit A is connected to a power source at the side of a copying machine body 3, while this manual feed unit A is attached to a unit installing part C with screws (h) and (h) whereby a manual feed unit type copying machine can be made up. Likewise, a connector of a multiunit B is connected to the power source at the side of the copying machine body 3, while the multiunit B is attached to the unit installing part C with these screws (h) and (h) whereby the copying machine provided with the multiunit can be made up. As a matter of course, the manual feed unit A and the multiunit B once set up are simply interchangeable.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a copying machine.

(Technical Background) The paper feed objects of the above-mentioned copying machine include copy paper for copying and original documents for copying. And for feeding oil copy paper,
A cassette paper feeding mode in which a cassette case containing a large number of copy papers is loaded into a paper feeding unit and the copy papers in the case are automatically fed one by one, and copy paper supplied to a manual paper feeding unit. There is a manual feed mode that automatically feeds paper, and
Some models are only for manual paper feeding.

On the other hand, in order to feed the original, there are two methods: artificial feeding, in which the originals are artificially fed one by one onto the document table by opening and closing the document presser, and a paper feeding device installed on the side of the document table. There is a form of manual paper feeding in which a document supplied to a manual paper feeding section of the paper feeding device is automatically fed.

Then, as a paper feeding device for manually feeding the copy paper or original (hereinafter referred to as paper), the manual feeding section feeds paper one sheet at a time, and this is linked to the copying operation. There are the so-called manual feed type, in which the paper is fed by the machine, and the so-called multi-type, in which a large number of papers are fed into the manual paper feed section, and the topmost paper is fed one by one in conjunction with the copying operation. There is.

[Conventional technology and its problems]

Therefore, in the past, copying machines equipped with a manual paper feed device and those equipped with a multi-type paper feed device were produced, but in order to be able to quickly respond to the wishes of users, the above two types of copying machines were manufactured. It was necessary to keep a sufficient stock of machines, and this required a large amount of storage space.

Alternatively, on the user side, if one paper feed type (a) type is obtained, unless the user obtains the other paper feed type (a type), only the paper feed form with the functions provided by the selected paper feed type will be used. However, it is not only uneconomical to manually install two copying machines so that two paper feeding types and M&functions can be selected, but also requires a large installation space.

[Problem that the invention seeks to solve]

The present invention has been made in view of the above circumstances, and
The purpose is to provide a copying machine that can quickly respond to the user's requests in terms of functionality while reducing the number of copies in stock by half, or that allows the user to select the paper feed function in an extremely economical manner. Therefore, the copying machine according to the present invention includes a paper feeding mechanism having a function of preventing double feeding, and a forward feed roller that feeds paper to the paper feeding mechanism,
and a multi-unit comprising a paper feeding input means provided in the paper feeding mechanism via a clutch, and a transmission mechanism provided between the means and the forward feed roller, and a manual paper feeding device in which the input means is connected in series. The present invention is characterized in that a manual feeding unit equipped with a roller can be selectively attached to a paper feeding section of the main body of the copying machine.

[Effect]

According to the above characteristic configuration, by selecting the unit to be installed in the copying machine, it is possible to produce two types of copying machines with different paper feed types, or by simply designing two types of units, it is possible to produce extremely It is possible to economically change the function to different paper feeding formats.

〔Example〕

Hereinafter, embodiments of the present invention will be explained based on the drawings. Figs. 1 and 2 show manual feed unit A and multi unit B.
3 shows the unit mounting part C. FIG. 4 shows a copying machine equipped with the manual feed unit 7A, in which a photoreceptor 4 is horizontally mounted on a copying machine main body 3 having a document table 1 and a document presser 2 on the top. In addition, the photoreceptor 4
A charging device 5, a developing device 6, a transfer device 7, a recording paper separating device 8, and a cleaning device 9 are arranged in this order in the rotation direction R of the photoreceptor 4, and the paper is directed toward the transfer device 7. a paper feed conveyance device IO for feeding paper, a paper discharge conveyance device 12 for discharging the paper after transfer and separation to the fixing device 11, and a pair of rollers 14 for discharging the paper after fixing to the tray 13. is disposed on the lower side of the copying machine main body 3, and a unit mounting section C is provided in the paper feeding section 15 of the paper feeding and conveying device 10, and a manual feed unit mounting section C is provided in the unit mounting section C.
A is attached, and an exposure device 16 with a movable optical system is arranged on the upper side of the copying machine main body.

As shown in FIG. 3, the unit mounting section C is provided with a paper feed guide plate 19 extending over a pair of support stands 17 and 18 attached to the main body of the copying machine. It is equipped with a rotating output gear (an example of an output means) G, and has threaded holes a, a for stopping the tension in the support base 17 and 18.

As shown in FIG. 1, the manual feed unit A is constructed by bending both sides of the paper feed base 20 upward to form a bracket 7)2.
1.21, and a roller shaft 23 provided with paper feeding rollers 22.22 at a predetermined interval is installed on the bracket 21.21, and the roller shaft 23
An input gear (an example of an input means) G1 is fixed to one end side, and screw holes are provided that match the tapped holes a when the input gear G1 and the output gear C of the unit mounting portion C are engaged. , b is drilled.

A paper detection switch S1 that detects the paper supplied to the paper feed base 20 and drives the output gear G is provided on the lower surface side of the paper feed base 20, and a paper detection switch S1 connected to the switch S1 is provided. The piece C is made to protrude above the paper feed base 20 and is provided on the upstream side in the paper feed direction with respect to the paper feed rollers 22, 22, and further, a connector (not shown) is connected to the switch Sl, A pair of guides 24, 24 for positioning the paper feed are provided so as to be able to approach and separate from each other via a rack and pinion (not shown).

As shown in FIG. 2, the multi-unit B includes a pair of brackets! -Paper feed base 26 with 25 and 25 arranged in series
A paper detection switch 7-inch S2 is provided on the bottom side of the paper feed base 26 to detect the paper fed onto the paper feed base 26 and drive the output gear G.
At the same time, a paper loading piece e connected to the switch St is projected onto the paper feeding base 26, and a pair of guides 27 and 27 for positioning the paper feeding are connected via a rack and pinion (not shown). A paper feed mechanism 30 consisting of an upper paper feed roller 28 and a lower friction pad 29 is provided so that the paper feed roller 28 can be moved relatively toward and away from the bracket 25.25. , a friction pad 29 is provided on the paper feed base 26, and a long hole f is formed around the roller shaft 31.

f is formed in the bracket 25.25, and the elongated hole f
, f are provided with a roller shaft 33 provided with a forward feed roller 32 therethrough.

A paper feed input gear (an example of input means) G2 is provided on the paper feed roller shaft 31 via a clutch 34 which is switched to a transmission state by turning on a copying switch (not shown). A transmission mechanism 38 consisting of a pair of sprocket wheels 35 and 36 and a chain 37 wound around the sprocket wheels 35 and 36 is provided across the shaft 33 of the forward feed roller 32, and a transmission mechanism 38 is provided between the paper feeding input gear G and the unit mounting portion C. Screw holes g, g that match the screw holes a, a are formed in a state of engagement with the output gear G, and the clutch 34
and paper detection switch S2 are connected to connectors not shown.

By connecting the connector of the manual feed unit A to the power supply on the copying machine main body side and attaching the joint feed unit A to the unit mounting portion C with screws h and h, the configuration shown in FIG. Alternatively, by connecting the connector of the multi-unit B to the power supply on the main body of the copying machine and attaching the multi-unit B to the unit mounting part C with screws h and h, the multi-unit B can be configured as shown in FIG. A copying machine of the form shown can be configured. Of course, once installed, manual feed unit A and Martinino) B can be easily replaced.

〔Effect of the invention〕

As explained above, the present invention includes a so-called manual paper feed type unit that feeds paper one sheet at a time to a manual paper feed unit and feeds the sheets in conjunction with a copying operation, and a unit that feeds paper sheets one by one to a manual paper feed unit, A so-called multi-feed type unit that feeds paper and feeds the topmost paper one sheet at a time in conjunction with the copying operation is selectively installed in the paper feed section of the copier main body. By selecting the unit to be equipped on the copying machine from the above two types, it is possible to produce two types of copying machines with different paper feed types, and teeth,
If you keep enough stock of the two types of units mentioned above, you can quickly respond to the user's wishes just by preparing half the number of copying machines as in the past, and therefore you can cut the stock space in half.

Alternatively, the user can extremely economically select between the two paper feeding formats by simply obtaining a model with one paper feeding type and preparing a unit with the other paper feeding type. Moreover, it has the advantage of requiring less space for installation.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a manual feed unit, Fig. 2 is a perspective view of a multi-unit, Fig. 3 is a perspective view of a unit mounting section, and Fig. 4 is a device equipped with a manual feed unit. FIG. 5 is a schematic sectional view of a copying machine equipped with a multi-unit (JR). 3... Copying machine main body, 15... Paper feed section, 30... Paper feeding mechanism, 32... Advance reroller, 34... Clutch, 38... Transmission mechanism, G, , G,... Input means (
input gear), 8... manual feed unit, B... multi unit.

Claims (1)

[Claims] The paper feeding mechanism includes a paper feeding mechanism having a double feeding prevention function and a forward feeding roller that feeds paper to the paper feeding mechanism, and the paper feeding mechanism is provided with a paper feeding input means via a clutch, and the input means for paper feeding is provided in the paper feeding mechanism via a clutch, and A multi-unit that is equipped with a transmission mechanism that spans the feed roller, and a manual feed unit that is equipped with a manual feed roller that is connected to an input means are selectively attached to the paper feed section of the copying machine main body. A copying machine that can be configured to