KPOWERSCIENCE KP3828 Series, Руководство по обслуживанию

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8-28
Transport Failure at the Post-fusing and Transport Sections
[04 Paper jam after fusing]
Procedure Points to be checked Remedy Checking method
1 Is the transport belt
driven during power
initialization? If YES, go to 2.
If NO, replace the
KMPU board.
2 Is the green lever of
transport unit closed
(upward)? If YES, go to 3.
If no, close the
green lever of
transport unit.
3 Is paper moving sensor
(PMS) normal? If YES, see
“
Others ” at the
end of “ 8-2
Remedies for
Transport
Failure
”.
If NO, replace
PMS after
checking the
harness.
Bring the positive lead of a digital
multimeter in contact with pin 11 of
CN7 of the KMPU board and the
negative lead in contact with SG (pin
16).
Place a cut sheet of paper on the
transport unit and make the post-fusing
scuff roller nip the paper so that the
paper lies over the PMS encoder.
Check the voltage while turning the
jam removal knob to the right and left.
If normal, the voltage will fluctuate
between approximately 0 V and
approximately 5 V.
Transport Failure at the Paper Output Section
[05 Paper jam at paper output section]
Procedure Points to be checked Remedy Checking method
1 Is the green lever of
transport unit closed
(upward)? If YES, go to 2.
If no, close the
green lever of
transport unit.
2 Is the paper out position
sensor (POPS) normal? If YES, replace the
KMPU board.
If NO, replace
POPS after
checking the
harness.
Bring the positive lead of a digital
multimeter in contact with pin 15 of
CN7 of the KMPU board and the
negative lead in contact with SG (pin
16), and measure the voltage.
If normal, the voltage will be
approximately 5 V when the POPS
lever is pressed down and will be
approximately 0 V when the POPS
lever is raised.