Lexmark X500N, Руководство по обслуживанию

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Diagnostic information
2-41
7100-XXX
Scanner / Copy / Fax service checks
Black page copy service check
Flatbed service check
ADF streak service check
Step Questions / actions Yes No
1 Print a menu page, or a page from the host.
Is the page black? See “High voltage power
supply (HVPS) service
check” on page 2-23
Go to step 2.
2 Is the CCD ribbon cable properly connected
to J-CCD on the system board? Go to step 3. Properly connect the ribbon
cable to J-CCD.
3 Check for +3.3VDC on pins 12 and 16 on
connector J-CCD. Pins 10 and 20 are
+5VDC. Pin 8 is +12VDC. Are the voltages
present? Replace the flatbed unit.
See
“Flatbed assembly
removal” on page 4-49 .
Replace the system board.
See
“System board
removal” on page 4-36 .
Step Questions / actions Yes No
1 Check to see if the flatbed is locked. Is it
locked? Unlock the flatbed. Go to step 2.
2 Ensure that the flatbed motor cable (JFB1)
is connected. Is the cable connected? Go to step 3. Properly connect the cable.
3 Check pin 1 in J-FB1 for voltage. The
voltage is only present when a copy job is
running. The voltage should measure 5V. Is
voltage present? Replace the flatbed unit.
See
“Flatbed assembly
removal” on page 4-49 .
Replace the system board.
See
“System board
removal” on page 4-36 .
Step Questions / actions Yes No
1 Do streaks appear on the middle of
scans when using the ADF? Clean the ADF glass on the
flatbed using a lint-free cloth.
Also, clean the separator roll
and pad with a damp cloth. No issue to fix.