Registration Control - Konica Minolta bizhub c650 Service Manual

Theory of Operation Ver. 2.0 Aug. 2007
4.2.4

Registration control

• Transmitting the FS start signal, the transfer motor rotates in low speed and the pick-up
solenoids /UP and /Lw turn ON. At the time, the tray lift motors /Up and /Lw rotate in the
forward direction to lift up the trays /Up and /Lw.
• The tray lift motors /Up and /Lw stop when the tray upper limit sensors /Up and /Lw turn
ON, and after a specified period of time, the transfer clutchs /Up and /Lw turn ON and the
paper is picked up from the tray. Only 1 sheet of paper is transferred by the transfer roller
because of the separation roller.
• The transfer motor rotates in high speed when the paper reaches the paper entrance
sensors /Up and /Lw. At the time, the paper is pressed against the transfer roller and
forms a loop because the registration clutch is OFF. After a specified period of time, the
registration clutch turns ON and the transfer motor drives the paper to FS.
• The transfer motor switches to rotate in low speed to feed the subsequent paper since
the paper passed the paper entrance sensors /Up and /Lw, and then the registration
clutch turns OFF after a specified period of time.
253 mm/s
Transfer motor
(M203)
670 mm/s
Transfer clutch /Lw (CL202)
Tray lift motor /Lw (M202)
Tray upper limit sensor /Lw (PS209)
Pick-up solenoid /Lw (SD202)
Paper entrance sensor /Lw (PS206)
Registration clutch (CL203)
[1] FS start signal turned ON
[2] Tray reached at the upper limit
Paper reached the paper entrance sensors /
[3]
Up (PS201) and /Lw (PS206)
[1]
[4] Registration clutch (CL203) turned ON
[5] Trailing edge of the paper passed the paper
entrance sensors /Up (PS201) and /Lw
(PS206)
4. Paper feed section
[2] [3] [4] [5]
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