Lexmark C 540n, Руководство по обслуживанию

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Diagnostic information
2-53
5025-2xx, 4xx
Trays 2 and 3 (optional) service check
5 1. Turn off the printer
2. Remove the rear shield. See
“Top cover
assembly removal” on page 4-13 .
3. Disconnect the cable at JTRAY1 connector
for tray1 or JOPT1 for tray 2 and 3 on the
controller board.
4. Turn the printer on, and measure the
voltages below:
Are the voltage values approximately correct?
Problem resolved. Replace the controller
board. See
“Controller
board removal” on
page 4-20
.
Step Questions / actions Yes No
1 Are two option trays being used? Go to step 2. Go to step 4.
2 If two option trays are being used, is the 550
sheet tray on the bottom? Go to step 4. Go to step 3.
3 Switch the order of the trays so the 500 sheet
tray is on the bottom, and print a page from
both trays.
Did the pages print from both trays?
Problem resolved. Go to step 4.
4
Inspect the paperfeed pick tires on the tray that
fails to pick.
Do they appear worn or damaged.
Go to step 5. Go to step 6.
5
Replace the pick tires on the faulty tray, and
print a page with media from the affected tray.
See
“Pick tires removal” on page 4-64 .
Did the page print?
Problem resolved. Go to step 6.
6 Check the option cable connected to JOPT1
for continuity.
Is there continuity?
Go to step 8. Go to step 7.
7 Replace the cable, and print from both option
trays.
Did the pages print from both trays?
Problem resolved. Go to step 8.
Step Questions / actions Yes No
JOPT1 for tray 2
or 3
Pin Voltage
2 Ground
3 Ground
5 +24V
6 Ground
7 +5V
9 Ground
10 Ground
JTRAY1 for tray 1
Pin Voltage
1 +5 V dc
2 +5 V dc
3 Ground