Canon imageRUNNER ADVANCE C3330 Series, Service Manual

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Bias name Bias
types
Application location Control PCB
Developing bias (DC)
Secondary Transfer High Voltage PCB (UN03)
DC Developing Cylinder
Developing bias (AC) AC
Primary transfer bias DC Primary Transfer Roller Primary Transfer High Voltage PCB (UN02)
Secondary transfer bias DC Secondary Transfer Outer Roller Secondary Transfer High Voltage PCB (UN03)
The abovementioned biases are generated by the 2 High Voltage PCBs and are also supplied to the loads used in printing
process.
Y M C BK
Primary Transfer DC
Charging DC
Secondary
Transfer DC
UN02
Primary Transfer
High-voltage PCB
UN03
Secondary
Transfer
High-voltage
PCB
UN04
DC Controller
PCB
Controls
■ Overview
Drum Unit / Developing Unit “Drum Unit / Developing Unit” on page 65
Parts / Drive Configuration “Parts / Drive Configuration” on page 65
Drum Cleaning / Drum Cleaning Pre-exposure Control “Drum Cleaning/Drum Cleaning Pre-exposure Control” on page 66
Drum Unit Detection “Drum Unit Detection” on page 67
Drum Unit Life Detection “Drum Unit Life Detection” on page 68
Primary Charging “Primary Charging” on page 70
Toner Supply Area “Toner Supply Area” on page 83
Parts / Drive Configuration “Parts / Drive Configuration” on page 83
Opening/Closing of Toner Container Shutter “Opening/Closing of Toner Container Shutter” on page 84
Bottle State Detection “Bottle State Detection” on page 84
Toner Container Detection “Toner Container Detection” on page 85
ATR (Auto Toner Replenishment) Control “ATR (Auto Toner Replenishment) Control” on page 86
Toner Supply Control “Toner Supply Control” on page 87
Toner Level Detection “Toner Level Detection” on page 89
Detection of Toner Container Premature Replacement / Toner
Replacement Completion “Detection of Toner Container Premature Replacement / Toner Replace-
ment Completion” on page 90
Transfer/Separation “Transfer/Separation” on page 71
Parts / Drive Configuration “Parts / Drive Configuration” on page 71
Primary Transfer Control “Primary Transfer Control” on page 72
Secondary Transfer Control “Secondary Transfer Control” on page 73
Primary Transfer Roller Disengagement Control “Primary Transfer Roller Disengagement Control” on page 73
ITB Displacement Correction “ITB Displacement Correction” on page 75
ITB Cleaning “ITB Cleaning” on page 75
Secondary Transfer Outer Roller Cleaning Control “Secondary Transfer Outer Roller Cleaning Control” on page 76
2. Technology
64