Paper Feed Control - Konica Minolta BizHub C360 Service Manual

Theory of Operation Ver. 1.0 Jul. 2009
16.3.2

Paper feed control

A. Pick-up control
• Paper feed operations of the manual tray are driven by the transport motor.
• The manual pick-up solenoid is energized by a print start signal and the paper is raised
to the paper feed position.
• After the paper is raised to the paper feed position, the manual paper feed clutch is ener-
gized.
• When the manual paper feed clutch is energized, the drive from the transport motor is
transmitted to the paper feed roller, so that the paper can be fed in.
• The paper feed roller feeds the paper onto the registration roller (timing roller).
• When the last sheet of paper for the print job fed from the manual tray is transported onto
the registration roller, the manual paper feed clutch is deenergized to stop the paper feed
roller from rotating.
• If the sensor in front of tim. roller sensor does not detect paper even after the lapse of a
predetermined period of time, the machine determines that there is a paper misfeed at
the manual tray. Note, however, that the paper feed sequence is repeated a second time
if a paper misfeed is detected in a print job of black mode. If the sensor in front of tim.
roller sensor is still unable to detect paper, the machine determines that there is a paper
misfeed at the manual tray (paper feed retry control).
• The manual pick-up solenoid is energized and the paper is lowered to the standby posi-
tion.
16. PAPER FEED SECTION (MANUAL TRAY)
Transport motor (M1)
Manual paper
feed clutch (CL7)
Paper feed roller
Paper
Separator
roller
Paper feed roller
Separator roller
A0EDT2C126DA
161