Canon imagePRESS C1 Service Manual - page 353
Chapter 7
7-4
Charging object: Secondary transfer static charge eliminator
DC bias value: -4.0k V
- Secondary Transfer Bias
Charging method: Roller charging
Charging object: Secondary transfer roller
DC bias value: -7.0k V (-375u A)
- ITB Cleaning Roller 1
Charging method: Roller charging
Charging object: Bias roller / brush roller
DC bias value: -3k V
- ITB Cleaning Roller 2
Charging method: Roller charging
Charging object: Bias roller / brush roller
DC bias value: +3k V
- Tension Roller Bias
Charging method: Roller charging
Charging object: Tension roller
DC bias value: -2k V
- Secondary Transfer Cleaning Roller
Charging method: Roller charging
Charging object: Bias roller / brush roller
DC bias value: 80u A
F-7-3
[1] Pre-transfer Charging Wire
[2] Developing Cylinder
[3] Primary Charging Wire
[4] Grid Plate
[5] Primary Transfer Roller
[6] Tension Roller
[7] Secondary Transfer Inside Roller
[8] Brush Roller
[9] Bias Roller
[10] Secondary Transfer Static Charge Eliminator
7.1.5 Charge Specification
0020-4109
imagePRESS C1+ (Printer) / imagePRESS C1+
- Primary Charging Bias
Charging method: Corona charging
Charging object: Primary charging wire
DC bias value: 9k V (-1000u A)
- Grid Bias
Charging method: Corona charging
Charging object: Grid wire
DC bias value: -400 to -950V
- Developing Bias
Charging method: Roller charging
Charging object: Developing cylinder
AC bias value: 1.85k V (Vpp)
DC bias value: 0 to -700V
- Stray Toner Collection Bias
Charging method: Toner blocking terminal plate
DC bias value: DC-920V
- Pre-transfer Charging Bias
Charging method: Corona charging
Charging object: Pre-transfer charging wire
AC bias value: 8.3k V (Vpp)
DC bias value: about -2k V (-600u A)
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