
2
2
2-42
2-42
Technical Explanation > Image Formation System > Controls > Drum Unit (Developing/Drum)
Technical Explanation > Image Formation System > Controls > Drum Unit (Developing/Drum)
●
Primary Charging Bias Control
DC charging (no AC charging) is a distinguishing feature of the primary charging of this
machine.
The surface of the Photosensitive Drum is charged to make a uniform negative potential.
The primary charging bias (DC negative), which has been generated by the Secondary
Transfer High-voltage PCB (UN02), is applied to the Primary Charging Roller.
The primary charging bias value is determined by the following conditions on the DC
Controller PCB:
• Environment (humidity detected by the Environment Sensor (UN33))
• Life of the Photosensitive Drum
Photosensitive
Drum
Primary Charging
Roller
DC Controller PCB (UN04)
Secondary Transfer High-voltage PCB (UN02)
F-2-56
■
Drum Unit (Developing/Drum)
●
Drum Unit Overview
The Drum Unit consists of the Developing Assembly and the Drum Assembly.
Drum Assembly
Developing Assembly
F-2-57
Содержание imageRUNNER C1335 Series
Страница 14: ...1 1 Product Overview Product Overview Product Lineup Features Specifications Parts Name ...
Страница 372: ...7 7 Error Jam Alarm Error Jam Alarm Overview Error Code Jam Code Alarm Code ...
Страница 429: ...7 7 7 58 7 58 Error Jam Alarm Jam Code Jam Type Error Jam Alarm Jam Code Jam Type PS101 PS103 PS102 PS101 F 7 3 F 7 4 ...
Страница 440: ...8 8 Service Mode Service Mode Overview COPIER FEEDER FAX TESTMODE ...
Страница 600: ... Service Tools General Circuit Diagram Backup Data Soft counter specifications Appendix ...
Страница 602: ...10 3 10 3 Appendix Service Tools Special Tools Appendix Service Tools Special Tools Solvents and Oils None ...