Theory of Operation Ver. 1.0 Apr. 2005
7.4
Detection of Toner Cartridge
7.4.1
Installation Detection
• The Imaging Cartridge, when loaded in position, is detected as follows. At the completion
of a warm-up cycle, the IC chip built into the Toner Cartridge (TC detection board)
detects electrically whether or not the cartridge is loaded in position.
7.4.2
Interchangeability Detection
• The built-in IC chip (TC detection board) detects the applicable marketing area of the
Toner Cartridge when power is turned ON or when the Front Door is opened and closed.
7.4.3
Toner Near Empty and Toner Empty Detection
• The Toner Empty Detection Sensor detects the amount of toner still available for use.
TC Detection Board
4136M537AB
Toner Empty Detection Sensor (TE1)
4136M540AA
7. IC (Imaging Cartridge) section
4136M540AA
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