JPH0596860U - Electrophotographic device - Google Patents

Abstract

(57) [Summary] [Purpose] It is possible to stabilize print quality without the toner being fused on the photoreceptor. In an electrophotographic apparatus provided with a transfer device 5 and a cleaning device 6 which are arranged on the circumference of the photoconductor 1 so as to face the photoconductor 1 with a predetermined space therebetween, an electrophotographic device is provided between the transfer device 5 and the cleaning device 6. A sound wave generator 10 facing the photoconductor 1 is provided to vibrate the toner 7 on the photoconductor 1. [Effect] The distance between the toner on the photoconductor and the photoconductor is increased, and the van der Waals force generated between the toner on the photoconductor and the photoconductor is significantly reduced.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electrophotographic apparatus.

[0002]

[Prior Art]

 FIG. 2 shows a conventional example of an electrophotographic apparatus. As shown in the figure, the electrophotographic apparatus comprises a photoconductor 1, a charging device 2, an exposure device 3, a developing device 4, a transfer device 5, a cleaning device 6 and a toner 7, a rotating brush 8 and a paper 9. To be done.

A charging device 2, an exposure device 3, a developing device 4, a transfer device 5, and a cleaning device 6 are arranged around the photoconductor 1 having photoconductivity, and toner 7 is charged by the charging device 2 and the exposure device 3. The formed electrostatic latent image on the photoconductor 1 is developed by the developing device 4. The developed toner 7 is transferred to the sheet 9 by the transfer device 5. A small amount of toner 7 remaining on the photoconductor 1 after the transfer device 5 is cleaned by a cleaning device 6 having a rotating brush 8.

[0004]

[Problems to be solved by the device]

 Most of the small amount of toner remaining on the photoconductor after the transfer device in the above-mentioned conventional technique is cleaned by a cleaning device having a rotating brush, but since a very small amount of toner is pressed against the photoconductor by the rotating brush, It was fused on the body. Since toner is an insulator and does not have photoconductivity, an increase in the amount of toner fusion causes a problem of deteriorating print quality. Therefore, maintenance is required to regularly clean the surface of the photoconductor.

The present invention has been made in view of the above points, and an object of the present invention is to provide an electrophotographic apparatus capable of stabilizing print quality without causing toner to be fused on a photoconductor. It is something.

[0006]

[Means for Solving the Problems]

 The above-mentioned object is achieved by providing a sound wave generator facing the photoconductor between the transfer device and the cleaning device so as to vibrate the toner on the photoconductor.

[0007]

[Action]

 Since the above means is provided, the distance between the toner on the photoconductor and the photoconductor is increased, and the van der Waals force generated between the toner on the photoconductor and the photoconductor is significantly reduced.

That is, the characteristic of the fused toner is that the photosensitive force of the rotary brush is applied to the toner on the photoconductor, that is, the force of the rotary brush impinges on the toner to clean the toner on the photoconductor. Focusing on the large van der Waals force generated between the toner on the body and the photoconductor, a device that can reduce the van der Waals force, that is, a device that separates the distance between the toner and the photoconductor, and a sound wave generator is a cleaning device. It is installed between the rotary brush and the rotating brush. As a result, the toner was vibrated, the distance between the toner and the photoconductor was increased, the van der Waals force between the toner and the photoconductor was reduced, and the toner was removed from the surface of the photoconductor.

[0009]

【Example】

 Next, the present invention will be specifically described with reference to examples.

[Embodiment 1] FIG. 1 shows an embodiment of the present invention. Since the same parts as those of the conventional one are designated by the same reference numerals, the description thereof will be omitted. In this embodiment, a sound wave generator 10 facing the photoconductor 1 is provided between the transfer device 5 and the cleaning device 6 to vibrate the toner 7 on the photoconductor 1. By doing so, the distance between the toner 7 on the photoconductor 1 and the photoconductor 1 is increased, and the van der Waals force generated between the toner 7 on the photoconductor 1 and the photoconductor 1 is significantly reduced. As a result, the toner 7 on the photoconductor 1 is removed by the rotating brush 8, and the electrophotographic apparatus capable of stabilizing the print quality can be obtained without the toner being fused on the photoconductor. .

That is, the sound wave generator 10 is provided between the transfer device 5 and the rotating brush 8 of the cleaning device 6. By doing so, the distance between the photoconductor 1 and the toner 7 is widened by the sound wave emitted from the sound wave generator 10, and the fan generated between the toner 7 and the photoconductor 1 on the photoconductor 1 is expanded. The Delwars force can be significantly reduced, and all the toner 7 can be removed from the surface of the photoconductor 1 by the rotating brush 8.

As described above, according to this embodiment, the van der Waals force generated between the toner on the photoconductor and the photoconductor can be significantly reduced, so that all the toner can be removed by the rotating brush of the cleaning device. It became possible to remove from the surface, and the print quality was stabilized without toner fusion on the photoconductor.

[0013]

[Effect of the device]

 As described above, according to the present invention, the sound generator that faces the photoconductor is provided between the transfer device and the cleaning device to vibrate the toner on the photoconductor. The distance from the body increases and the Van der Waals force generated between the toner on the photoconductor and the photoconductor is greatly reduced.The toner on the photoconductor is removed by the rotating brush and the toner on the photoconductor is removed. It is possible to obtain an electrophotographic apparatus capable of stabilizing print quality without being fused.

[Brief description of drawings]

FIG. 1 is an explanatory view of an embodiment of an electrophotographic apparatus of the present invention.

FIG. 2 is an explanatory diagram of a conventional electrophotographic apparatus.

[Explanation of symbols]

1 ... Photoconductor, 5 ... Transfer device, 6 ... Cleaning device, 7 ... Toner, 10 ... Sound wave generator.

Claims (1)

[Scope of utility model registration request] 1. An electrophotographic apparatus comprising a transfer device and a cleaning device, which are arranged on the circumference of the photoconductor so as to face the photoconductor with a predetermined space therebetween, and the photoconductor is provided between the transfer device and the cleaning device. The electrophotographic apparatus is characterized in that a sound wave generator opposite to the above is provided to vibrate the toner on the photoconductor.