JPH0395581A - Transfer electrifier - Google Patents

Abstract

PURPOSE:To make an electrifying state excellent at all times by winding a stained transfer electrifying wire around a take-up roll and supply a stainless wire from an transfer electrifying wire supply roll at the same time. CONSTITUTION:The transfer electrifying wire 2 is wound around a wire supply roll 5 and one end passes in a transfer electrifier 1 and is wound around the take-up roll 4. The roll 4 is also an insulating roll and connected to the wire 2 through the roll 5. Here, the wire 2 is wound around the roll 4 which is rotated by a motor 3 and the transfer electrifying wire 2 which is connected to a high voltage power source 6 and not stained is supplied into the electrifier 1 from the roll 5. Here, the wire 2 which is not stained is used at all times and an excellent transfer electrifying state is obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a transfer charger for transferring developer on the surface of an image carrier to a transfer material in an electrophotographic image forming apparatus.

[Conventional technology]

In an electrophotographic image forming device, a photosensitive drum, which is an image carrier, rotates, and an eraser lamp causes the photosensitive drum to lose potential, is charged by a charger, and an electrostatic latent image is formed by an exposure device, or a developing device An image is formed through a series of processes including toner development using a transfer charger, transfer onto paper as a transfer material using a transfer charger equipped with a transfer charge wire, and scraping of toner remaining on the photosensitive drum with a cleaning blade.

During transfer by the transfer charger, toner, paper powder, and the like come flying as things that contaminate the transfer charging wire and adhere to the transfer charging wire as deposits. In order to remove deposits from the transfer charging wire and obtain a good charging state, conventional transfer chargers require the user to remove dirt from the charging wire using a dirt wiping rod, dirt wiping brush, etc. was.

[Problem to be solved by the invention]

In the conventional transfer charging device described above, the discovery and removal of dirt on the transfer charging wire is left up to the user, and it is impossible to properly remove the dirt on the transfer charging wire. There is a drawback that the transfer charging wire may be cut when removing dirt.

[Means to solve the problem]

The transfer charger of the present invention includes a wire winding roll, a wire supply roll, a wire wound around the wire supply roll, one end of which is wound around the wire winding reroll, and a wire winding roll and a wire winding roll. The device includes a transfer charging wire stretched between rolls, a power source that applies a high voltage to the transfer charging wire, and a drive source that rotates the wire winding roll and winds up the transfer charging wire. be done.

〔Example〕

Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention.

In this embodiment, the transfer charging wire 2 is connected to the wire supply roll 5.
One end passes through the transfer charger 1 and is wound around the take-up roll 4. The wire take-up roll 4 is made of an insulating material, the wire supply roll 5 is made of a conductive material, and a high voltage power source 6 is connected to the transfer charging wire 2 via the wire supply roll 5.

By winding up the transfer charging wire 2 on a wire winding roll 4 that rolls concavely by a motor 3, the transfer charging wire 1 connected to a clean high-voltage power source 6 is supplied from a transfer charging wire supply roll 5 into the transfer charger 1. be done.

〔Effect of the invention〕

As explained above, the present invention maintains a good transfer charging state at all times by winding up a dirty transfer charging wire on a transfer charging wire take-up roll and simultaneously supplying a clean transfer charging wire from a transfer charging wire supply roll. There is an effect that can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of one embodiment of the invention. 2. Transfer charging device, 2. Transfer charging wire, 3. Motor, 4. Wire take-up roll, 5. Wire supply roll, 6. High voltage power supply.

Claims (1)

[Claims] a wire take-up roll, a wire supply roll, and a transfer charging wire that is wound around the wire supply roll, has one end wrapped around the wire take-up roll, and is stretched between the wire supply roll and the wire take-up roll. and a power source that applies a high voltage to this transfer charging wire,
A transfer charger comprising: a drive source that rotates the wire take-up roll and winds up the transfer charge wire.