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1. PROCESS CONTROL

1.1 OVERVIEW

1.1.1 Copy Process around the Drum

1. DRUM CHARGE

In the dark, the drum charge roller gives a uniform negative charge to the

organic photo-conductive (OPC) drum. The charge remains on the surface of

the drum because the OPC layer has a high electrical resistance in the dark.

The amount of negative charge on the drum is proportional to the negative

voltage applied to the drum charge roller.

9. QUENCHING

2. EXPOSURE

3. ERASE

5. PRE-TRANSFER

LAMP

6. IMAGE

TRANSFER

7. PAPER

SEPARATION

8. CLEANING

PICK-OFF

PAWLS

1. DRUM CHARGE

SENSOR

TRANSFER BELT

4. DEVELOPMENT

Fig. 1 Copy Process Around the Drum

Detailed

Descriptions

STM 2-1 A156/A160/A162

Ricoh A156 User Manual

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