Canon iR6570 series, Service Manual

Page: 212 / 684

Chapter 7
7-14
F-7-18
SERVICE MODE:
COPIER>OPTION>BODY>FUZZY (turning on/off fuzzy control)
0: enable fuzzy control (default)
1: low humidity mode (for pre-transfer charging current level lower than standard)
2: normal humidity mode
3: high humidity mode (for pre-transfer charging current higher than standard)
When set to '1' through '3', the machine executes the appropriate modes independently of the reading of the environment sensor.
7.5.4.3 Pre-Transfer Charging Assembly Cleaning Mechanism
0009-4082
The machine executes pre-transfer charging wire cleaning as follows using its associated mechanism:
Timing
1. when wire cleaning is executed in user mode.
2. when wire cleaning is executed in service mode (COPIER> FUNCTION> CLEANING> WIRE-CLN)*1.
3. after the end of cleaning, every 2,000 prints*2.
4. in a low temperature or high humidity environment, if the fixing roller is 160 deg C or less when the power is turned on.
*1: The machine executes cleaning when the primary charging wire or the transfer charging wire has been replaced.
*2: The default cleaning interval may be changed in service mode: COPIER> OPTION> BODY> W-CLN-P.
F-7-19
The following signals are associated with the mechanism:
[1] Pre-transfer charging wire cleaning motor normal direction signal; when '1', the wire cleaner moves toward the rear.
[2] Pre-transfer charging wire cleaning motor reverse direction signal, when '1', the wire cleaner moves toward the front.
7.5.4.4 Others
0009-4083
SERVICE MODE:
COPIER>ADJUST>HV-TR>PRE-TR (entering output adjustment value for pre-transfer charging current)
Enter the value indicated on the service label if you have initialized the RAM on the DC controller PCB.
COPIER>ADJUST>HV-TR>H-PRE-TR (entering offset value for pre-transfer high-voltage output of high-voltage unit)
Enter the value indicated on the label attached to the new high-voltage unit if you have replaced the high-voltage unit or initialized the RAM on the DC
controller PCB.
Low temperature High temperature
Pre-tr
ansf
er current
Wire cleaner
Wire
Pre-transfer charging assembly
Pre-transfer charging
wire cleaning motor (M7)
(toward rear)
(toward front)
POST_CLEAN_OUT2 [2]
POST_CLEAN_OUT1 [1]
DC controller PCB
J103A