Operation; Registration Roller Control - Konica Minolta bizhub c450 Service Manual

Theory of Operation Ver. 1.0 Mar. 2005

19.3 Operation

19.3.1

Registration Roller control

• A loop is formed in the paper between the Transport Roller and Registration Roller during
the paper transportation to correct skewed paper feeding. The amount of the paper loop
can be adjusted using "Loop Adjust" of the Tech. Rep. mode. The ON timing of the Inter-
mediate Transport Motor as the motor is restarted is varied by changing this setting.
(This adjustment should be made when a tilted image is printed due to paper skew or a
Z-folded paper misfeed occurs at the Registration Roller.)
• "Top Margin" available from the Tech. Rep. mode should be adjusted based on the image
writing start timing. (This adjustment should be made if the image on the copy deviates in
the FD direction.)
Main Motor (M1)
Tray1 Paper Feed Clutch (CL1)
Intermediate Transport Motor (M14)
Registration Roller Clutch (CL3)
Registration Roller Sensor (PC28)
Registration Roller
Transport Roller
Start Key ON
Registration
Roller ON
Paper
19. Registration Roller section
Registration
Roller ON
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Loop
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