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1-22 Service Manual
5016-001
Toner Cartridge Unit
Detecting a new cartridge
When initializing, a reflector attached to the new cartridge detect
lever installed in the cartridge, reflects light. A new cartridge detect
sensor installed in the bottom part of the printer, allows the cartridge
to be detected. Once the cartridge has been used the new cartridge
detect lever makes a turn and no additional reflections occur.
A new cartridge detect sensor:
• Will be high “H” when a cartridge has been used. (Sensor
output at connector)
• Will be low “L” when a cartridge is present.