JPS58137868A - Cleaning device of electrophotographic copying machine - Google Patents

Abstract

PURPOSE:To perform highly reliable cleaning operation with simple, small structure, by providing bladelike members that pressure contacted to the peripheral face of a photoreceptor in the housing of a cleaning device. CONSTITUTION:Rubberlike blade members 7, 8, an end of which is pressure contacted to the peripheral face of a photoreceptor 1 are provided in the housing 2 of a cleaning device and excessive developer is wiped off and recovered. Remaining small quantity of developer is sucked by a vacuum device 17 in a hermetically closed space formed by the members 7, 8, and recovered. By this way, highly reliable cleaning can be performed with simple, small structure.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for removing residual 3J on a photo susceptor of an electronic copying machine.
This article relates to the removal of S-agents and IJ-2 repair.

Conventionally, as this type of cleaning device, there are a brush type cleaning device using a cleaning brush and a blade type cleaning device jF using a cleaning blade. The conventional brush type cleaning device is disposed in close proximity to the IJ ceptor 1 of the electronic copying machine, as schematically shown in Figure 1 of the accompanying drawings. A brush 3 that rotates so as to brush the circumferential surface of the photoreceptor 1 is provided in the housing 2.
is connected to a vacuum device fI (not shown). In this conventional brush-type cleaning device, the residual developer adhering to the photorecessor 1 rotating in the direction of the arrow is separated from the surface of the photorecessor 1 by the brushing action of the brush 3, and the vacuum device f#
However, due to the air flow generated by the high speed rotation of the brush 3, residual plastic and powdered toner 6, which is a part of the cleaning agent, are removed from the photoreceptor 1. There is a possibility that the particles may be scattered into the electronic mirror tower through the gap between the surface of the housing 2 and the end surface of the housing 2. In order to eliminate such ridges, conventionally, a gap vI4tI5 plate 4 was attached to the end of the housing 2 so as to be adjustable with a set screw 5. However, such a gap 11
If the m-plate 4 comes into contact with the surface of the photoreceptor 1, it will damage the surface of the photoreceptor 1.
In addition to strict requirements regarding the adjustment accuracy, it was inevitable that even the slightest gap should be left between the photoreceptor and the surface of the photoreceptor 1. Therefore, the conventional brush type cleaning device cannot effectively prevent the powder toner 6 from scattering into the machine from the gap between the surface of the photoresegrator 1 and the housing 2. Furthermore, the conventional brush-type cleaning device attempts to remove the fluoridated agent on the circumferential surface of the photoresegrator 1 only by the brushing action of the brush 3, which greatly reduces the need for a vacuum device in the subsequent process. However, it also has the drawbacks of being more expensive, requiring higher power consumption, and requiring a larger installation space. On the other hand, the conventional blade calendar cleaning device attempts to remove residual liquid additives from the circumferential surface of the photoreceptor using a cleaning blade provided in a housing close to the circumferential surface of the photo IJ segmenter of an electronic copying machine. , the cleaning effect of this cleaning blade alone is not sufficient,
It was not always reliable enough.

SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic copying machine that can perform an inexpensive and reliable cleaning operation without contaminating the interior of the electronic copying machine with dust particles. An object of the present invention is to provide a cleaning device.

According to the present invention, such a purpose is to remove the residual developer on the photoreceptor of the Ichigo-bune camera, and to remove the residual developer on the photoreceptor in the 9-y gear installation. This is achieved by providing a flexible blade-like member at the end of the housing of the cleaning device, with its tip pressed against the circumferential surface of the photoresegrator.

Next, the present invention will be described in more detail with respect to the embodiment of Book 9 #3 based on FIG. 2 and tlLj of the accompanying drawings.

The tlK diagram schematically shows an embodiment in which the present invention is applied to a brush type cleaning device. this! The male side brush-type reinforcing device is similar to the conventional example shown in FIG. A rotating brush 3 is provided to brush the surface, but instead of providing gap adjustment plates at both ends of the nozzle 2.

According to the invention, rubber-like blade-like members 7 and 8 are attached with set screws 9. These blade-like members 7 and 8 are arranged so that their tips are in pressure contact with the circumferential surface of the photoreceiver 1, so that the gap between the housing 2 and the photoreceiver 1 is eliminated, and the powdered toner 6 is This prevents it from scattering into the calculator. Moreover, the rubber-like blade-like member 8 provided at the lower stage is the brush 3.
Before brushing, the residual developer 6 on the circumferential surface of the photoreceptor 1 is removed, and most of the toner 6 is removed, so the load on the cleaning blade 3 is reduced, and therefore , Post-process vacuum equipment f17
A simple and small size will do the trick. The toner 6 blown away by the blade-like member 8 is collected by a toner collection device flo.

In order to make it easier to understand the cleaning operation of the residual developer in the brush-type cleaning device of this embodiment, the residual developer attached to the photoreceptor 1 rotating in the direction of the arrow will be explained by following the gradual return order. Rinjia 6 is, first of all,
The photoreceptor is removed by the wiping action of the lower rubber blade-like member 8 on the surface of the photoreceptor 1.
The toner, most of which has been removed from the circumferential surface of photoreceptor 1 and separated from the surface of photoreceptor 1, falls into toner recovery device flt10 and is recovered. This blade-like part#
8, the remaining W that was removed and is still attached to the circumferential surface of the photoresegrator 1 is shown.

The brushing action of the brush 3 on the surface of the photoresegrator 1 separates it from the circumferential surface of the photoresegrator 1 and the vacuum device 1117 pulls it away from there. In addition, it is assumed that residual developer that was not removed from the surface of the photoreceptor 1 even by the brushing action of the brush 3 was attached to the circumferential surface of the photoreceptor 1.
The residual developer on the surface of the photoreceptor 1 is separated from the surface of the photoreceptor 1 by the sweeping action of the developer, and is sucked and carried away by the vacuum device 1f17.In this way, the residual developer on the surface of the photoreceptor 1 is completely cleaned. .

According to the configuration of this embodiment, since the blade-like members 7 and 8 can completely eliminate the gap between the photoreceptor and the housing, powdered toner is not scattered inside the machine even though the brush 3 rotates at high speed. This prevents the inside of the machine from becoming dirty, and improves the tightness of the inside of the housing 2.
In addition, since the load on the brush 3 for wiping off the impregnating agent is reduced due to the action of the blade-shaped member 8 to remove the impregnating agent, the load on the vacuum mounting section in the post-processing step 1iiK is also reduced. Small vacuum equipment! This makes it possible to achieve lower costs, smaller sweeps, and lower power consumption.

FIG. 3 schematically shows an embodiment in which the present invention is applied to a blade type cleaning device. In this example,
Arranged close to the circumferential surface of Photoresegator 1! A cleaning blade 12 is installed in the housing 11 so that its tip touches the circumferential surface of the photoreceptor 1. 6, it is set to be collected at the toner giant 1 collection g114.

To the east, according to the present invention, f) a plume-shaped blade-like member 13 is provided at the end of the housing 11 with a set screw 15 so as to close the gap between the IJ ceptor 10 surface and the end of the housing 11; The blade-like member 13 has its tip pressed against the circumferential surface of the photoreceptor 1.

The residual toner 6 is prevented from scattering from inside the housing 11 to the outside, and the residual toner 6 is prevented from scattering from the circumferential surface of the photoresegrator 1. It also has the effect of dispelling the poison 6.

According to the configuration of such an embodiment, the f-rade-like member 13
This completely prevents the developer from scattering outside the housing 11 and staining the inside of the copying machine, and also provides the action of removing residual developer, so the action of removing the developer is the main cleaning method. Since it participates in the pushing action of the blade 12,
! ! A multi-blade effect can be obtained for the privately made agent, improving the reliability of cleaning.

In addition, in each of the embodiments described above, the blade-shaped member is.

Although it is assumed to be in the shape of a dem, the present invention is not limited to this, and may be formed of any material as long as it can absorb the residual developer on the photoresedator.

[Brief explanation of drawings]

Attached drawing! / Figure is an analytical schematic diagram showing an example of a conventional electronic copying machine gluing device, and Figure 1 is a cleaning device as an embodiment of the present invention. jSchematic diagram, 3rd
The figure is a schematic diagram showing a cleaning device as another embodiment of the present invention. 1...Photoresegrator, 2...Brushing housing, 3...Brush, 6...Residual developer, 7.8...Blade 9... Set screw, 10... Toner collection device! , 11... song housing, 12...
・Cleaning blade, 13. Curved blade-shaped member, 15. Set screw, 14. Curved toner collection device.

Claims (1)

[Claims] In a cleaning device for removing the residual agent on the photo susceptor of an electronic copying machine, a blade-like member capable of removing the residual agent on the photo susceptor presses its tip against the circumferential surface of the photo susceptor. A cleaning device characterized in that it is provided at an end of a housing of the cleaning device in such a manner as to! .