Canon imagePRESS C1 Service Manual - page 352
Chapter 7
7-3
F-7-2
[1] Primary Charging Assembly
[2] Pre-exposure LED
[3] Photosensitive Drum
[4] Drum Cleaner Unit
[5] Pre-transfer Charging Assembly
[6] Patch Image Sensor
[7] ITB Unit
[8] Secondary Transfer Outside Roller
[9] Secondary Transfer Cleaning Brush Roller
[10] Color Sensor
[11] ITB Cleaner Unit
[12] Developing Assembly (Y)
[13] Developing Assembly (M)
[14] ATR Sensor
[15] Developing Assembly (C)
[16] Developing Assembly
[17] Thermal Sensor
[18] Potential Sensor
[19] Developing Assembly (L)
7.1.4 Charge Specification
0012-4899
imagePRESS C1 P / 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)
- Primary Transfer Bias
Charging method: Roller charging
Charging object: Primary transfer roller
DC bias value: -2.5 to 5k V (60u A)
- Secondary Transfer Static Charge Eliminator Bias
Charging method: Static charge eliminator charging
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