Printing Process - Panasonic DP-C305 Service Manual

6.4.

Printing Process

Laser Printer creates an image on the paper using a technique called laser electrophotography. The printer
uses the electrographic process known as Discharged Area Development, or "write black". In this process,
a digitally modulated laser scans laterally across a rotating OPC (Organic Photo Conductive) drum that has
been negatively charged. Wherever the OPC drum is exposed by laser beam, the image is written and
toner is transferred.
(Optional Paper Transport Unit)
Toner
Cartridge
Y
Intermediate
Transfer Belt
OPC
Intermediate
Y
Transfer Belt
Cleaning Blade
Laser Scanning Unit (LSU)
Ver. 1.1
Toner Toner
Cartridge Cartridge
M C
First Bias Transfer Roller (FTR)
OPC OPC
M C
Polygon Motor
Pickup Roller
Pickup Roller
Pickup Roller
Pickup Roller
Heat Roller
IH Coil
Toner
Cartridge
BK
Heater Belt
OPC
BK
Charge
Roller
Paper Feed Roller
Paper Feed Roller
Paper Feed Roller
604
DP-C405/C305/C265
Pressure
Fuser
Roller
ADU
Roller
Paper
Registration
Roller
Second Bias
Transfer Roller
(STR)
Pickup Roller
Reverse Roller
FEB 2008