Cleanerless image forming apparatus

Details Cleanerless image forming apparatus Cleanerless image forming apparatus

1992-12-04

1994-03-15

Fuller, Benjamin R.

Photocopying

Contact printing

Light boxes

355206, 355269, 355296, 118652, G03G 1506, G03G 1524

Patent

active

052949648

ABSTRACT:
The image forming apparatus does not have a separate cleaning unit. The image forming apparatus includes a photosensitive drum, an exposing unit for forming an electrostatic latent image on the photosensitive drum, a transfer unit for transferring toner onto a recording sheet to perform a transfer process, a paper feed mechanism for transferring the recording sheet through the transfer unit, a charging unit for charging the photosensitive drum to a predetermined voltage, a memory removing member for scattering toner remaining on the photosensitive drum upon a completion of the transfer process, a developing unit for feeding the toner over the electrostatic latent image and for recovering the toner from the photosensitive drum, and a controller for producing upon the completion of the image forming process a voltage difference between the photosensitive drum and the memory removing member so as to generate an electrostatic attracting force which causes the toner remaining on the memory removing member to be collected on the photosensitive drum. The collected toner is recovered by the developing unit later.

REFERENCES:
patent: 4515465 (1985-05-01), Miyoshi et al.

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