Konica Minolta Bizhub-C31P, Service Manual, Page: 238 / 370

Field Service V er. 1.0 Apr. 200 8 13. Jam display
201
bizhub C31P
T
roubleshooting
13.4.6 Media misfeed in control logic
A. Detection timing
B. Action
Type Description
Detection of
media misfeed in
control logic By image write start signal timing
• The pressure operation of the first image transfer mechanism is not completed
during full color printing.
• The first image transfer mechanism is not in the state of retraction during mono-
chrome printing.
• While the leading edge of an image has reached the position where the first
image transfer process is performed, the pressure operation of the second
image transfer mechanism is not completed.
• A duplex print job is sent with the number of pages that goes beyond the maxi-
mum number of pages allowed to be in the printer for the selected media type.
• When trying to feed duplex media though there is no media to be fed to the
duplex print unit.
• When printing is directed with the duplex print unit selected as a media source
and an exit media set to be fed to the duplex unit.
• While two sheets of media are in the printer, printing is directed with normal
media feed settings other than a duplex media feed setting.
• In duplex printing, a size error or media error occurs.
Relevant electrical parts
MFP board (MFPB)
AD control board (ADCB) Print control board (PRCB)
Step Action
WIRING DIAGRAM
Control signal
Location (electri-
cal component)
1 Check printer driver settings.
⎯ ⎯
2 Change ADCB.
⎯ ⎯
3 Change MFPB.
⎯ ⎯
4 Change PRCB.
⎯ ⎯