JPS58108553A - Process kit - Google Patents

Abstract

PURPOSE:To prevent vertical placing of a process unit usable in horizontal state and to prevent a toner from being inclined by providing a projected part to the side of a process unit which is attachable/detachable to/from the main body of an electrophotographic copying machine and accommodates a photodetective drum, a charger, a cleaner, and a developing device. CONSTITUTION:The process unit 8 can be taken out from the main body of the copying machine by pulling out the unit 8 while grasping a taking-out handle 29. When the unit 8 is to be attached to the body, a positioning pin 23 is engaged with the inner part of the body and simultaneously a drum shaft 25, a charging connector 24, a development bias connector 26 are connected to a driving device of the body and a power source. Since the positioning pin 23 and the charging connector 24 are sharply projected from the side 8 a of a process kit 8 as convex parts. The process kit can not be perpendicularly placed and the toner is prevented from being deposited onto one direction.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a nine-process middle device configured to be detachably attached to a main unit.

Taking a copying machine that generally uses electrophotography as an example,
If the photoconductor is used for a long period of time, the photoconductor must be replaced.
It is necessary to supply and replace the battery, clean the charging wire, and make other adjustments and replacements, and such maintenance work is performed by specialized service personnel. However, in order to keep this copying apparatus operating in good condition at all times, a method has been proposed to carry out maintenance work without relying on the above-mentioned specialized service personnel. That-
As an example, the discharger included in the device, the current f#! ! .

There is a method of simply replacing a combination of multiple components such as photosensitive drums with new ones. Then, by having a configuration that allows the process kits to be replaced in this way (if you do so, you can prepare multiple kits depending on the purpose of use and load the kit that matches the purpose into the main unit). The same main body can be used for multiple functions.

In this way, a user who owns a copying machine treats the kit as a kit! This may cause problems.

If there is a dust remover or cleaning device that contains developer in a kit that is used horizontally, if this kit is left standing vertically on a desk or floor, the developer will be in one direction. I feel bad. As a result, developer that has accumulated in excess of the allowable amount may overflow from the container of the process kit, or development may become partially impossible due to unevenness of the aS agent. In the latter case, even if a stirring member for developer is used, it takes time until the developer becomes uniform, which limits the use of the copying apparatus.

The present invention prevents the developer from shifting due to handling of the process kit, and allows the process kit to be used in a stable state at all times.

To achieve the above object, the present invention provides a process kit that is removable from the main body of the 1lki11II forming apparatus and is used in a horizontal state. Due to the presence of the 11th section, it was made so that it could not be erected with the 11th section facing down.

Hereinafter, the evaluation of the present invention will be explained according to examples and drawings.

@Figure 1 shows the main part of an electrophotographic copying apparatus to which an embodiment of the present invention is applied! This is a Confucian map.

In the figure, a sensory drum 2 having a photoconductive layer provided on a conductive drum base is pivoted so as to be rotatable in the direction of the arrow. This drum 2
According to the rotational direction of the drum, jrona discharge ft
3. Short focus optical element array4. Current customary vessel 5. A transfer corona discharge-6° cleaning device 7 is provided. In this device 1, a sensing drum 2, a discharger 3, a current generator 5, and a cleaning device 7 are integrally supported by a housing 8 as a process kit 20. This casing 8 is guided and supported by guide rails 9 fixedly provided on the main body side, and is attached to and removed from the main body device.

In the photocopying apparatus described above, the surface of the sensing drum 20 is uniformly charged with a predetermined polarity using the corona discharger 3, and then the original on the document table 1G that moves back and forth at the top of the main body of the apparatus is illuminated with the lamp 11, and the reflected and emitted light is sent to the element. The array 4t is exposed onto the drum 2 to form the column gII. The formed latent image is transferred to the developer 5
The dust was transferred to the transfer corona discharger 6.
Transcribed by. The transfer material is supplied to the transfer material supply tray 12 by an operator's manual operation, and is conveyed to the transfer section via the conveyance reeler 13 and the tie-on glow 214. Transfer 1g
The completed optical transfer material is separated by a separating means 15 and transferred to the moving path 1.
6, the paper is sent to the fixing device 17, where it is fixed, and further delivered onto the paper ejection tray 19 via the ejection roller 18t.

FIG. 142 is a perspective view showing the attachment/detachment relationship between the apparatus main body and the process in-process holder 20. The process kit, which includes the sensor drum bearing, opens the front door 21 of the main body, and the operator manually closes the casing. Arrow 22 in the 0 diagram is done by pulling out 8.
indicates the direction in which the housing moves when the process kit is attached or removed.

FIG. 3 shows a perspective view of the above-mentioned killer 20, with the hand mirror side being the rear side when loaded. A positioning bin 23 for correctly correcting the position of the kit loaded in the main unit and a connector 24 for supplying high voltage to the charger 3 are located on the back side of the case 81. The convex St of the present invention is configured to protrude larger than that of the present invention. This convex part should protrude from 1 to 2-#1 from the housing surface 8.
In addition, the L housing surface 8aK has a drum bearing portion 25 for driving the photosensitive drum 2, and a connector 26 for applying a bias voltage to the current S unit 5. The concavo-convex portion of the bearing portion 25 and the concave-convex portion of the main body side fit together, and the electric power of the main body is transmitted to the drum 2.

During the above process, the final positioning of the main body of the 20 is done through a positioning hole 2 installed on the side opposite to the housing surface 8a.
7 is achieved by fitting it into the bottle on the main body side (not shown).In addition, when carrying this kit 20, there is a 28Fi which is integrated with the housing 8.・
As long as the kit is carried by holding the handle 28, the kit can be kept horizontally, so there is no need to worry about the solution being lopsided to one side.

FIG. 4 is a perspective view of the process kit 20, and the front side shows the housing surface sbt which becomes the front side when loading.
b is the handle 29 for taking out Kira) 2G from the main body
is attached, and this handle 29 constitutes the convex portion of the present invention.

By the way, when using the above Kira) 2G, a part of the photosensitive drum is exposed at the bottom, so when you take it out and store it, it is better to provide a force / (-) to protect the exposed part of the drum.
It is preferable to incorporate such a protective eel cover into the kit so that when the kit is taken out, the protective eel cover automatically covers the exposed portion of the drum.

In the present invention, the number of protrusions or the parts constituting the protrusions are not limited in any way; however, the positions where the protrusions are provided are as follows, taking into account the attachment and detachment of the gastric access kit:
By providing this convex portion on the side that comes to the back of the main device during loading, there is a high probability that the access kit will be prevented from being placed upright unnecessarily.

[Brief explanation of the drawing]

1II is a sectional view of a copying machine to which the present invention can be applied, FIG. 2 is a sectional view of the copying machine showing the attachment/detachment relationship between the process kit and the main unit, and FIGS. 1R3 and 4WJ are perspective views of the process kit. In FIG. 6, 20 indicates a push button, a positioning bin forming a 23-stock convex portion, 24 a connector forming a convex portion, and 29 a handle for selecting a convex portion. Applicant Nakayanon Co., Ltd.

Claims (1)

[Claims] (1) In the 1μ sesquito, which is removable from the main body of the l1llllll forming device and conveniently used in a horizontal position, the current
%l,,< is a cleaning means, or a process kit that has a convex part on the side of the process kit containing the present means and cleaning means so that it cannot or cannot be stood up with this side facing down. .