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2-68
Service Manual
ADF paper jam service check
Note:
This service check should be used if the paper feeds and jams in the ADF. If the paper is not feeding into
the ADF see
“ADF feed errors service check” on page 2-69
.
Step
Questions / actions
Yes
No
1
If the ADF is multi-feeding, check for dirt on
the ADF separator pad and ADF separator
rollers. Are they dirty?
Clean them with a lint free
cloth and isopropyl alcohol.
Replace the separator pad
and ADF pick roll.
2
If the paper is skewing when it is fed into the
ADF, check the paper guide width. Is it set
correctly?
Go to step 3.
Set the paper guides so
they contact the edges of
the paper.
3
If paper is skewing when fed or jamming
check to see if the top cover is open or ajar.
Is the ADF top cover open or ajar?
Properly close the top
cover.
If the paper is jamming in
the ADF, go to step 6
4
Is paper failing to feed into the ADF?
Go to step 5.
There is no issue.
Perform the ADF paper present, scan 1st
and scan 2nd sensor tests. Go to
.
Are the sensors working properly.
Go to step 6
Go to step 9.
6
Check the leading edge of the paper to
ensure the paper is not curled or bent in a
way that would keep it from contacting the
paper present sensor actuator. Is the paper
damaged?
Bad media.
Go to step 7.
7
Is there dirt in the sensors, or is the paper
present actuator stuck?
Clean the sensors, or
remove debris from the
actuators.
Go to step 8.
8
Are the sensor actuators on the ADF
mechanism cover damaged?
Replace the ADF.
Go to step 9.
9
Is the ADF connector properly connected to
JADF1 on the system board?
Go to step 10.
Properly connect the cable
to the system board.
10
Inspect the connections on the ADF relay
card in the ADF. Are all the connections
properly connected?
Go to step 11.
Secure all the connections.
11
Check the ADF cable for continuity. Is there
continuity?
Go to step 11.
Replace the ADF cable.
11
Check for signals or voltages from JADF1
on the controller board. Pin 11 and 12
should m24VDC. Pin 5 should
m14VDC. Are there signals or
voltages present?
Replace the ADF unit. See
“Duplex ADF removal” on
page 4-83
Replace the controller
board. Go to
Y112730-2
Summary of Contents for d-Color MF920
Page 1: ...SERVICE MANUAL Copiatrici Copiers d Color MF920 d Color MF923 Code Y112730 2...
Page 10: ...x Service Manual Y112730 2...
Page 15: ...Notices and safety information xv Y112730 2...
Page 16: ...xvi Service Manual Y112730 2...
Page 18: ...xviii Service Manual Y112730 2...
Page 22: ...xxii Service Manual Y112730 2...
Page 124: ...2 80 Service Manual Y112730 2...
Page 198: ...3 74 Service Manual Y112730 2...
Page 302: ...4 104 Service Manual Y112730 2...
Page 305: ...Locations 5 3 Interior view Y112730 2...
Page 306: ...5 4 Service Manual Printer boards Controller Board Y112730 2...
Page 317: ...Locations 5 15 HVPS Y112730 2...
Page 319: ...Locations 5 17 LVPS Y112730 2...
Page 324: ...6 2 Service Manual Y112730 2...
Page 331: ...Index I 7 Y112730 2...
Page 332: ...UPDATINGSTATUS DATE UPDATEDPAGES PAGES CODE 09 2010 1ST EDITION 332 Y112730 2...