2Nd Image Transfer; Image Transfer Atvc Control - Minolta magicolor 7300 Service Manual

FrameMaker Ver.6E (PC) magicolor 7300 MECHANICAL/ELECTRICAL
02.08.08
7-11.

Image Transfer ATVC Control

• The resistance value of the Second Image Transfer Roller and the Transfer Belt is mea-
sured and its voltage is controlled at the appropriate level.
• The 2nd Image Transfer ATVC adjustment is made when the Power Switch is turned ON
or Front Door is opened and closed.
ATVC: stands for Auto Transfer Voltage Control
• The 2nd Image Transfer ATVC current is output and resistance of the 2nd Image Transfer
Roller is measured.
• The 2nd Image Transfer output current is determined according to the measured value,
environment, monochrome/color mode and paper type and width.
Cleaning of the 2nd Image Transfer Roller
ATVC current is output to 2nd Image Transfer Roller.
Resistance of the 2nd Image Transfer Roller is measured.
2nd image transfer ATVC current is decided.
High Voltage Unit 2 HV2
ATVC Current
2nd Image Transfer Roller
Transfer Belt
Cleaner Receive Roller
ATVC beginning
Control Board
Constant
current
Resistance
measurements
M-37
C4134S038AA
PWB-A
C4134S039AA