Konica Minolta magicolor 1690MF Service Manual - Page 66
Toner cartridge rack standby position, Toner cartridge rack developing position, Cartridge
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magicolor 1680MF magicolor 1690MF COMPOSITION/ OPERATION Theory of Operation Ver. 1.0 Nov. 2008 12. Developing section (1) Toner cartridge rack standby position • The M toner cartridge is provided with a slit for detecting the standby position. • When the toner cartridge rack is rotated, the Rack positioning sensor (PS3) moves past the slit for detecting the standby position. This allows the machine to determine that the toner cartridge rack is currently at the standby position. Through pulse control of the rack motor, the machine then successfully brings the toner cartridge rack to its exact standby position. Y Detection of M developing position K Detection of Y developing position Rack positioning sensorÅiPS5Åj C Detection of K developing position Direction of rotation of the Toner cartridge rack M Standby position detecting position Detection of C developing position C M K Y Photo conductor Standby position A034T2C521AA (2) Toner cartridge rack developing position • To bring the toner cartridge rack to a stop at the corresponding developing position, the rack is rotated from the standby position 62° through pulse control of the rack motor. (3) Cartridge replacement position • When a request is made for replacing the toner cartridge of a specific color of toner (by means of an input from the control panel, upon a toner empty condition, or through an input made via the printer driver), the toner cartridge rack is rotated 70° from the developing position through pulse control of the rack motor. 39