Canon i-SENSYS LBP5300 Series, Руководство по обслуживанию

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Chapter 2
2-17
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The cartridges used in this printer consists of photosensitive drum, primary charging roller, developing roller, and etc.
Each cartridge has the following functions.
- Memory tag control
- Cartridge presence detection
- Developing roller engagement/disengagement control
2.4.3.2 Memory tag
0013-7481
/ i-SENSYS LBP5360 / i-SENSYS LBP5300
The memory tag is a nonvolatile memory built in the cartridge. The usage condition of the cartridge is monitored and memorized by reading the data stored in the
memory tag and writing (update) data to the memory tag.
When the DC controller encounters the following statuses, it determines the memory tag communication error and notifies the video conrtoller of "Warning: car-
tridge memory abnormality".
- Access abnormality: When reading/writing failed
- Data abnormality: When wrong data is read/written
F-2-24
2.4.3.3 Cartridge presence detection
0013-7495
/ i-SENSYS LBP5360 / i-SENSYS LBP5300
This is to detect the presence of a cartridge.
When the power is turned ON or the door is closed, the DC controller performs this detection as follows.
The DC controller detects the cartridge presence by monitoring the difference of the drive motor operation.
When the DC controller determines the cartridge absence in the procedure , it stops the printer engine and notifies the video controller of "cartridge absence".
2.4.3.4 Developing roller engagement/disengagement control
0013-7499
/ i-SENSYS LBP5360 / i-SENSYS LBP5300
The purpose of this control is to engage the developing roller with the photosensitive drum only during the developing operation.
The developing roller engagement/disengagement is controlled according to changing the direction of the developing estrangement cam. The DC controller drives
the developing estrangement solenoid during the fixing motor (M1) rotates clockwise in order to change the direction.
This raises or lowers the rear part of cartridge and the developing roller is engaged with or disengaged from the photosensitive drum with a principle of leverage.
The developing estrangement sensor detects the direction of the developing estrangement cam, and the DC controller determines the developing roller is engaged
or disengaged.
M
SL
Toner level sensor (Light receiver)
Toner level sensor (Light emitter)
DC controller PCB
FIXING MOTOR CONTROL signal
DRUM MOTOR DRIVE signal
Toner level PCB
LED DRIVE signal
TONER LEVEL signal
Developing alienation cam
Cartridge data
DEVELOPING ALIENATION signal
Developing alienation sensor
Drum motor
Fixing motor
Memory tag Photosensitive drum
Waste toner container
Primary charging roller
Toner container
Developing roller
DEVELOPING ALIENATION SOLENOID DRIVE signal
Developing alienation solenoid
M1
memory tag
Cartridge
DC controller PCB