Canon IR1600 User Manual

CHAPTER 5 IMAGE FORMATION SYSTEM
COPYRIGHT © 22002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002
5-8
4 Controlling the Transfer Charging Roller Bias
4.1 Outline
The machine uses a charging roller for charging (direct charging method), and it applies
a DC bias to the transfer charging roller.
The machine’s transfer charging mechanism is controlled for the following:
[1] turning on and off the bias.
[2] controlling the DC bias to a specific voltage/current level.
[3] correcting the voltage level (ATVC control)
The following shows the system used to control the transfer charging mechanism:
F05-401-01
T403Tr
TRCRNT
TRPWM*
ASIC
CPU
TRPFOT*
TRCHG
TRNFOT*
DC controller PCB
Transfer bias circuit
Comparison
circuit
Constant current/
voltage switch circuit
Positive current
detection circuit
Voltage
detection circuit
Negative voltage
generation circuit
To transfer
charging roller
Superimposition

Canon IR1600 Specifications

General

Print Technology	Laser
Type	Monochrome
Maximum Print Resolution	600 x 600 dpi
Print Resolution	600 x 600 dpi
Copy Resolution	600 x 600 dpi
Standard Paper Capacity	250 sheets
Maximum Paper Size	A4
Functions	Print, Copy, Scan
Print Speed	16 ppm
Copy Speed	16 cpm
Scan Resolution	600 x 600 dpi
Operating System Compatibility	Windows
Interface	USB 2.0