Pre-Transfer Charging Assembly Cleaning Mechanism; Others; Drum Cleaner Unit; Overview - Canon iR5055 Series Service Manual

Chapter 7
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

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
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.
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

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
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.
COPIER>ADJUST>HV-TR>D-PRE-TR (entering offset value for pre-transfer high-voltage output of DC controller PCB)
Enter the value indicated on the label attached to the new DC controller PCB if you have replaced the DC controller PCB or initialized the RAM on the DC controller
PCB.
COPIER>OPTION>BODY>W-CLN-P
Use it to set the interval of automatic cleaning of the pre-transfer charging wire in terms of the number of prints.

7.6 Drum Cleaner Unit

7.6.1 Overview

iR5065 / iR 5055 / iR5075 / iR5075N / iR5065N / iR5055N
The following shows the components found in the drum cleaner unit:
7-12
POST_CLEAN_OUT1 [1]
POST_CLEAN_OUT2 [2]
Wire
Wire cleaner
Pre-transfer charging assembly
F-7-19
Pre-transfer charging
wire cleaning motor (M7)
0015-4495
0015-4496
0015-4497