JPS6155682A - Carrier cleaning device of image forming device - Google Patents

Abstract

PURPOSE:To facilitate replacing a cleaning member and to make replaceable parts inexpensive by setting the cleaning member attachably and detachably to a guide provided in parallel with the axis of a carrier which carries forms. CONSTITUTION:A brush 18 and its attaching part 18a are set attachably and detachably to a rail 17a parallel with the axis of resist rolls 16 which carry forms to the side of a photosensitive body, and paper powder or the like stuck to an upper roll 16a is removed. If the brush 18 is deformed and defects of contacting occur because the brush 18 is used repeatedly for a long period, the attaching part 18a is slided to replace the brush with a fresh brush. Thus, the replacing work is easy, and the expense is reduced because replaced parts are only the brush 18 and the attaching part 18a.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a conveying can cleaning device in an image forming apparatus that cleans a conveying device such as a registration roller for conveying sheet paper in an electrophotographic apparatus or the like.

[Technical background of the invention and its problems]

In electrophotographic apparatuses and the like, a device as shown in FIG. 3 has been conventionally used to remove paper dust on a registration roller that conveys a sheet of paper to a photosensitive drum after it is once stopped.

In this device, a supporting arm (10) made of fixedly supported synthetic fibers and having a length of about 5 [u] is slid into contact with the upper registration roller α, and the paper dust, etc. on the upper registration roller α is removed. It is to be removed.

However, with this device, during long-term cleaning, the upper registration rollers (l) are worn out due to sliding contact, and the plan U
The tip or the whole of the upper registration roller (L
This causes poor contact between the rollers and the brush housing, making it impossible to clean the upper registration rollers, which in turn shifts the timing of sheet paper conveyance, resulting in poor image quality. For this reason, the brush (II) must be replaced as necessary during maintenance, but due to its structure, in order to replace the brush αυ, the support arm (screw A4 that fixes 10 to the shear a3) must be removed. , it is necessary to replace the entire support arm α@, which has disadvantages in that the replacement parts are expensive and the operability during replacement is poor.

[Purpose of the invention]

This invention was made based on the above circumstances.
The bushings can be easily replaced during maintenance.
It is an object of the present invention to provide a transport can cleaning device for an image forming apparatus that is highly economical by improving its operability and reducing the cost of replacement parts.

[Summary of the invention]

This invention has been made in order to achieve the above objects (2) by providing a guide at the tip of the support arm and forming the brush so that it can be attached to and detached from the guide, it is possible to easily replace the plan, and to replace the replacement part. This will reduce the price of.

[Embodiment of the Invention] An embodiment of the invention will be described below with reference to FIG. A pair of upper and lower rollers (16a), (16b)
Resist Cola (IQ
The upper roller (16a) is provided with a cleaning member α(
) are in contact with each other. That is, at the tip of the support arm αη,
A rail (17a) serving as a guide is formed parallel to the shaft 4 of the upper roller (16a), and the mounting portion (18a) of the brush 081 is fitted into the rail (17a) so that it can be inserted and removed. It has become. Further, t21) is a screw for attaching the support arm (17) to the chassis (2).

Then, image formation begins; second, a sheet of paper (not shown) fed from a paper feed cassette (not shown) comes into contact with a registration roller (tl) and is temporarily stopped.

Thereafter, the registration roller 061 is rotated in synchronization with the toner image on the photoreceptor drum (not shown), and the sheet paper is conveyed to the photoreceptor drum side. On the other hand, this register “stroller” (1e
During the rotation of , the brush α is brought into sliding contact, and paper dust, etc. attached to the upper roller (16a) is removed from the sheet paper. In this way, if the cleaning of the upper roller (16a) with the brush α is repeated for a long time and the brush side is deformed and a contact failure occurs between the upper roller (16g) and the brush measurement, the attachment part (18a) ) and remove the brush α~ from the rail (17a), then insert the attachment part (18a) of the new brush cake into the rail (17a),
Set a new brush side and start a new image forming process.

With this configuration, the brush (1
Even if the second is deformed, the attachment part (18) of the brush (I8)
Since the brush (2) can be easily replaced by simply inserting and removing the brush (8) from the rail (17a), maintenance operability is improved, and replacement parts are also attached to the part C (18).
Since it is only the brush α marked with a), the price is lower than that of the conventional brush.

The present invention is not limited to the above-mentioned embodiments, and can be modified in various ways. For example, the cleaning member may be made of felt, and the conveyor is not limited to registration rollers, but may be other conveyor rollers or endless rollers. It may also be a belt or the like. Furthermore, as in the first modified example shown in FIG. 2 (A), the shape of the guide (C) and the attachment part Q41 can be arbitrary;
As in the second modification shown in FIG. 1, the support means (a) for supporting the cleaning member may be urged by springs 07) to forcibly press the cleaning member against the carrier.

〔Effect of the invention〕

As explained above, according to the present invention, by making the cleaning member removable from the guide of the support means, operability when replacing the cleaning member is improved, and the cost of replacement parts is reduced compared to the conventional method. It also aims to improve economic efficiency.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is a sectional view showing one embodiment of the present invention, Fig. 2 shows another modification of the invention, and Fig. 2 (a) shows the first modification. 2(b) is a sectional view showing a second modification thereof, and FIG. 3 is a sectional view showing a conventional device.

Claims (1)

[Scope of Claims] 1. In a device that cleans the conveyor by sliding a cleaning member in contact with a conveyor that conveys sheet paper, the guide at the tip is provided so as to be substantially parallel to the shaft of the conveyor. 1. A carrier cleaning device for an image forming apparatus, comprising: a support means; and a cleaning member having an attachment portion that is detachably attached to the guide. 2. The carrier cleaning device for an image forming apparatus according to claim 1, wherein the guide is a rail parallel to the shaft, and the mounting portion is removably fitted to the rail.