CHAPTER 5 IMAGE FORMATION SYSTEM
COPYRIGHT
©
2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002
5-1
1 Outline of Processes
The image formation system has the following functions, and uses the following methods:
Item
Photosensitive drum
Drum cleaning
Developing cylinder
Toner
Toner
Primary charging
roller bias control
Developing bias
control
Transfer charging
roller bias control
Description
OPC (30-mm dia.)
Cleaning blade
20-mm dia.
Dry, 1-component, toner projection
Negative toner
AC constant current control (about 1110 µA; about 860 Hz)
DC constant voltage control (plain paper mode; about -580 to -650 V)
AC constant voltage control (about 1600 Vp-p; about 2200 Hz)
DC constant voltage control (plain paper mode; image area, about -
360 to -485 V; non-image area, about -495 to -570 V)
DC constant voltage control (about 5.76 KV max.; for cleaning
bias, about -2.3 KV)
DC constant current control (about 5 µA)
voltage level correction control (ATVC)
T05-101-01