Photoreceptor Cleaning

Cleaning. Any toner still left on the photoreceptor after the transfer process is removed with a cloth web or brush, or by a combination of electrostatic and mechanical means. 

Figure 7 A schematic of a process in which the various steps are arranged around the circumference of a photoreceptor drum. Here, (1) is the corona charging apparatus, (2) the exposure system, (3) the development system, (4) the transfer corona, (5) the fusing apparatus, (6) the cleaning system, and (7) the erase exposure system. Processes of this kind are widely used for printer and low-volume copier applications.

Some of the interfaces meeting the photoreceptor are obvious its surface encounters ionized gas which serves to deposit or remove corona charge, the developer mass, the transfer sheet, and cleaning devices. Other interfaces with essential functions are found in the internal structure of the photoreceptor itself. Let us now look at these in some detail. 

Figure 15. Neutralization of toner and photoreceptor charge prior to cleaning. (Reproduced, with permission, from Ref. 84. Copyright 1980, Society of Photographic Scientists and Engineers.)...

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