Drum Cleaning Block; High-Voltage Control; Overview - Canon LBP6000 Series Service Manual

Chapter 2

2.4.1.14 Drum Cleaning Block

LBP6000 / LBP6000B
The drum cleaning block removes the toner remained on the photosensitive drum.
Step 7: Drum cleaning
In this step, toner remained on the photosensitive drum is removed.
The cleaning blade scrapes the leftover toner on the surface of the photosensitive drum; the toner is collected into the cleaner container.
By implementing the above step, the surface of the photosensitive drum is cleaned.

2.4.2 High-Voltage Control

2.4.2.1 Overview

LBP3100 / LBP3010B
This circuit is comprised of the circuits that apply biases to the primary charging roller, developing cylinder, transfer roller, and the fixing control circuit. The CPU
of the engine controller controls the high-voltage power supply circuit to generate these biases. The fixing control circuit executes heater control of the fixing as-
sembly according to the instruction by the CPU of the engine controller.
The following is the block diagram of this circuit.
2-18
Fixing heater
Pressure roller
F-2-27
Cleaning blade
Photosencitive
Cleaner container
F-2-28
Fixing film
Toner
Media
drum
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