Konica Minolta bizhub C250 Service Manual page 128

Theory of operation ver. 3.0 Aug. 2006
19.3 Operation
19.3.1 Registration roller control
• The paper will create a loop between the feed roller and the registration roller when the
paper is being conveyed in order to correct the skew.
• The registration roller clutch (CL1) is controlled in order to synchronize the timing the unit
starts writing the image and conveying paper.
A. Adjustment
• The amount of the loop of the paper can be adjusted in the "service mode." changing the
adjustment value will change the timing the feed roller turns ON.
･ The timing of the paper conveyance can be adjusted in the "service mode." changing the
adjustment value will change the timing for the registration roller clutch (CL1) to turn ON..
Registration roller
sensor (PC1)
Registration roller
clutch (CL1)
Feed roller
2
OHP sensor (PC4)
Registration roller
sensor (PC1)
Feed roller
Paper
Feed roller
Paper will finish creating a loop
ON
before the registration roller
Feed roller stop
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19. Registration roller section
ON
Registration roller
rotates
Feed roller returns
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Registration roller
Loop
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