Phd Unit; Major Functions - Dell 2130cn Service Manual

3.7 PHD Unit

3.7.1 Major functions

- PHD Unit
PHD Unit carries out a series of operation in the print process such as charging, and transfer.
PHD Unit mainly consists of the following parts.
Developer is an equipment which develops images in the print process.
• Drum (Y)
• Drum (M)
• Drum (C)
• Drum (K)
- CRUM
PHD specific information is stored.
- Erase Lamp (LED ASSEMBLY)
The light of the LED is reflected by the HOLDER ASSY Erase.
The light of the LED eliminates the charge on the drum.
• Developer (Y)
• Developer (M)
• Developer (C)
• Developer (K)
PHD UNIT
DRUM
6 – 34
Chapter 6 Principles of Operation
HOLDER LENS ERASE ERASE LAMP
LED ASSEMBLY
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