JPS58161284A - Device for cleaning corona discharger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a compact cleaning device for cleaning the corotron, wire and corotron shield of a corona discharger.

Conventional cleaning methods for corona discharge devices can be broadly classified into two types.

The first method is to perform the first cleaning of the corotron shield and wire with a brush, etc., and then perform the second cleaning by dry wiping or alcohol wiping @ cloth or paper.

A second method is to provide a cleaning member inside the corotron shield, and when cleaning, pull or push the cleaning knob 7 shown in FIG. It was cleaned by sliding it.

Note that 3ir is a corotron block, 4 is a corotron cleaner, and 6 is a connecting member.

Furthermore, in the past, as shown in FIG. 2, a cleaning pad 5 was provided on the supporting member 8 to clean the entire corotron shield 1 and corotron wire 2.

Although the first method has good cleaning properties, it takes a long time to clean and has the disadvantage that the corotron wire 2 is cut during operation.

In addition, there were many cleaning tools, which made storage difficult.

Furthermore, although the second method has the advantage of being easy to operate, it also has the disadvantages of leaving residue on the corners of the corotron shield, making the device itself large, and increasing cost.

'1' In the application example shown in Fig. 2, which has the advantage of being compact and inexpensive, the corotron wire 2 is attached to the cleaning pad 5 when the cleaning device is attached to and detached from the entire corona discharger.
There is a danger that the corotron wire 2 will be cut due to the pressure between the two, and there is a drawback that the means for fixing the cleaning pad 5 at point A is difficult and the number of assembly steps increases.

The present invention has been developed in view of the above circumstances, and its objectives are to eliminate uneven wiping, eliminate the need to cut the corotron wire during attachment/detachment, shorten cleaning time, and be inexpensive and easy to store. To provide a cleaning device for a corona discharger that can be cleaned even by an amateur.

Hereinafter, the present invention will be explained with reference to FIG. 3 and subsequent figures.

9 in the drawing is a support plate as a support member F, and the support plate 9
A cleaning pad 5 as a cleaning elastic member G is provided at both ends of the cleaning pad 5.
is the installation.

If the corotron shield 1 or the corotron wire 2, which is the member to be cleaned (2) of the corona discharger, becomes contaminated with toner or the like f', the cleaning pad 5 is inserted into the corotron shield 1.

Since the cleaning pad 5 is larger than the width of the corotron shield 1 before being inserted, it will press against the corotron shield 1 when inserted. However, during insertion, the corotron wire 2 is designed so that the cleaning pad 5 does not touch or touches it lightly, so the corotron wire 2 will not be cut by pushing the entire wire.

Cleaning is basically divided into two parts.

That is, by moving the pad in the inserted state along the longitudinal direction, the pressing contact surface between the cleaning pad 5 and the corotron shield 1 is cleaned.

The cleaning pad 5 is suitably made of wool-based felt or urethane foam.

Next, by applying full force to the left and right sides of the support plate 9 in the direction of the arrow, the cleaning pad 5 is pressed against the corotron wire 2, and in this state, the cleaning pad 5 is moved in a longitudinal direction. Finally, the cleaning of the center portion of the corotron wire 2 and corotron shield 1, that is, the zero point, is completed.

If Rn is for only the corotron shield I, the cleaning pad 5 is moved in the longitudinal direction of the corotron shield 1 with the cleaning pad 5 inserted, and cleaning is completed in one operation.

After ffi, Corotron Shield 1 to Cleaning Pad 5
Pull it out.

Note that the cleaning pad 5 is desirably made of a member having a porous surface in order to retain and recover the developer attached to the cleaning pad 5 during cleaning.

FIG. 4 shows another embodiment of the present invention, which differs from the above-described embodiment in that the supporting plate 9 is shaped like an inverted V and the cleaning pad 5 is attached to the side wall of the corotron shield 1. It is placed so that it intersects 1a at an acute angle,
In particular, consideration has been given to ease of holding and the corner adhesiveness of the Corotron Shield 1.

What is shown in FIG. 5 is another embodiment of the present invention.
fl Support plate 9 is made up of separate left and right members, both members 9a and 9bt bins are used to open and close the members, and a compression spring 10 is interposed between both members 9a+9b on the opposite side of the cleaning pad 5. An advantage is that 9 does not necessarily have to be flexible.

In the cleaning device shown in FIG. 4 as well, compression springs may be interposed between the left and right portions of the support plate 9.

Since the present invention has been described in detail above, by using the cleaning device according to the present invention, it is possible to clean the corotron shield 1, which is the portion to be cleaned H of the corona discharger, without any uneven wiping (unwiped residue). Therefore, there is no risk of cutting the corotron wire 2, which is the part to be cleaned, when the cleaning device is attached or detached from the housing, and the cleaning time can be shortened. Moreover, it is not only inexpensive and easy to store, but also allows even an amateur to clean the corona discharger.

[Brief explanation of the drawings] Figure 1 is a perspective view of a conventional cleaning device for a corona discharger;
The figure is an explanatory diagram of the configuration of a conventional corona discharger cleaning device.
The figure is an explanatory diagram of the configuration of one embodiment of the present invention, and FIGS. 4 and 5 are explanatory diagrams of the configuration of other embodiments of the invention. F is a support member, G is an elastic member for cleaning, and ■ is a member to be cleaned. Applicant: Fuji Xerox Co., Ltd. Agent: Patent attorney: Masaaki Yonehara Patent attorney: Tadaki Hamamoto 1 Figure

Claims (1)

[Claims] Cleaning of a corona discharger characterized in that it is completely equipped with an elastic member G for cleaning and a support member F that holds the elastic member G for cleaning and allows the elastic member G for cleaning to slide into contact with the part to be cleaned H during cleaning. Device.