Ptr (Paper Transfer Roller) Contact And Separation - Ricoh G133 Service Manual

Image Transfer and Paper Separation
P.P.: Power Pack (ITB power supply board)
The toner is moved from the OPC [A] onto the surface of the image transfer belt [B] by a
positive charge from the image transfer roller (immediately above the drum, not shown
here). The ITB drive roller [C], which is given a negative charge, pushes the toner to the
paper [D].
The paper transfer roller [E] presses the paper against the image transfer belt [B] (with a
spring that is under tension from the paper transfer roller contact motor), and grounds the
charge from the ITB drive roller [C]. (The paper transfer roller does not have a drive
mechanism. This roller is driven by the image transfer belt.)
Finally, the discharge plate [E], which is given an AC charge, discharges the paper.
The discharge plate receives its charge from a different high voltage power supply board
than the ITB drive roller.

PTR (Paper Transfer Roller) Contact and Separation

The paper transfer contact motor [A] keeps the paper transfer roller [B] in contact with the
SM 6-47 G133