Savin SLP20 Manual de Serviço descarregar pdf (Página 61)

IMAGE TRANSFER AND PAPER SEPARATION

SM 2-17 G031/G032

Detailed

Descriptions

2.4.2 TRANSFER ROLLER CLEANING

If the paper size is smaller than the printed image, or if a paper jam occurs during

printing, toner may be transfered to the roller surface. To prevent this toner from

transferring to the back side of the printouts, the transfer roller has to be cleaned

before the next printing run.

During transfer roller cleaning, the high voltage supply unit supplies a negative

cleaning bias to the transfer roller. The negatively charged toner on the transfer

roller is then transferred back to the drum. Then a positive cleaning bias is applied

to the transfer roller to push back to the drum any toner which was positively

charged by the transfer roller.

The machine goes through the cleaning mode in the following conditions:

•

After a printer jam has been cleared.

•

Just after the power is switched on.

•

After 10 sheets of paper have been printed and the print job has finished.

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Savin SLP20 Manual de Serviço Página 61