Page 16 - MF3010Series Service Manual (Rev.0) (1)-017-045 (1)

2 Technical Overview > Image Formation System > Toner Cartridge > Toner Cartridge Absence/Presence Detection
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Toner Cartridge The Paper Leading Edge Sensor (PS751) performs both this detection and paper feed
detection. Therefore, the engine controller cannot make a judgment of ‘Toner cartridge
■ Toner Level Detection absent’ or ‘jam occurrence’ when jam occurs.
The engine controller judges this case as ‘Toner cartridge absent’ and notices it to the main
This equipment has no function of toner level detection.
controller.
If jam occurs when ‘Toner cartridge absent’ is detected, check if there is a fault in the Paper
■ Toner Cartridge Absence/Presence Detection Leading Edge Sensor (PS751) and the detection flag.
The engine controller detects the position of the Toner cartridge detection flag to judge the
absence/presence of the Toner cartridge.
At the time of turning on the power or closing the upper cover, the engine controller judges
the position of the Toner cartridge flag based on the output result of the Paper Leading Edge
Sensor (PS751).
When the output result of the Paper Leading Edge Sensor (PS751) is L, it is judged that the
Toner cartridge is absent; If being H, it is judged that the Toner cartridge is present.

Engine controller

PS751

Toner cartridge
detection flag

Leading edge
sensor detection flag

Toner Toner
cartridge=No cartridge=Yes
PS751="H" PS751="L"

F-2-20

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2 Technical Overview > Image Formation System > Toner Cartridge > Toner Cartridge Absence/Presence Detection