Pre-Transfer Lamp (Ptl) - Ricoh FT5540 Service Manual

31 August 1989
7. IMAGE TRANSFER AND PAPER SEPARATION

7.1 PRE-TRANSFER LAMP (PTL)

After the latent image is developed but before the image is transferred to the copy paper, the
drum surface is illuminated by the pre-transfer lamp [A]. This illumination reduces the positive
potential on the drum surface. This is to prevent the toner particles transferred to the paper
surface from being reattracted to the positively charged drum during the paper separation
process. It also makes image transfer and paper separation easier.
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