HP LaserJet Enterprise 500 Maintenance Manual - Page 65

General Symptom List

Page 65 highlights

General Symptom List General Symptom List Table 3 is a list of possible printer problems that are not indicated by messages on the LCD. Troubleshooting procedures are included for each symptom. If you encounter a problem that is not listed in Table 3, troubleshoot using the Half-Split Method described on page 64. Table 3. General Symptom List Symptom Solution Communications Failures CLEAR PAPER JAM message instead of LOAD PAPER when printer is out of paper CLEAR PAPER JAM message will not clear and paper does not move See page 83. Jams 1. On 475 lpm and 500 lpm printers, check the shuttle speed (page 136). Adjust the shuttle speed to match the printer's rated speed. 2. Power off the printer. Remove the paper path or pedestal top cover. Remove the barrier shield (cabinet model) or the barrier shield and paper guide (pedestal model). Check that the paper detector switch assembly is securely mounted in its bracket. 3. Check that connector P106/PMD is fully seated in connector J106 on the CMX controller board. 4. Load paper. Power on the printer. Replace the paper detector switch assembly if either message appears. 5. Inspect the paper ironer. If the paper ironer has slipped up into the print line, reposition the paper ironer. 6. Load paper. Power on the printer. Replace the CMX controller board if either message appears. Record the message and return it with defective CMX board. 1. Remove the paper path or pedestal top cover. Make sure connector P107/PAPR M is fully seated in connector J107 on the CMX controller board. 2. Check the paper feed motor pulley for looseness. Hold the collar snug against the motor pulley and torque the 7/64 inch setscrew to 25 ± 2 inch-pounds (2.82 ± 0.23 N•m). 3. Check the condition and tension of the paper feed timing belt. Adjust the paper feed timing belt. Replace the belt if it is damaged. 4. Load paper. Power on the printer. Press PAPER ADVANCE and VIEW several times and check that paper moves correctly in both directions. Replace the paper feed motor if the message appears or the paper moves erratically. 5. Power on the printer. Press PAPER ADVANCE and VIEW several times and check that paper moves correctly in both directions. Replace the CMX controller board if the message appears or the paper moves erratically. Record the message and return it with defective CMX board. 65

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General Symptom List
65
General Symptom List
Table 3 is a list of possible printer problems that are not indicated by
messages on the LCD. Troubleshooting procedures are included for each
symptom.
If you encounter a problem that is not listed in Table 3, troubleshoot using the
Half-Split Method described on page 64.
Table 3. General Symptom List
Symptom
Solution
Communications Failures
See page 83.
Jams
CLEAR PAPER JAM message
instead of LOAD PAPER when
printer is out of paper
1.
On 475 lpm and 500 lpm printers, check the shuttle speed (page
136). Adjust the shuttle speed to match the printer’s rated speed.
2.
Power off the printer. Remove the paper path or pedestal top
cover. Remove the barrier shield (cabinet model) or the barrier
shield and paper guide (pedestal model). Check that the paper
detector switch assembly is securely mounted in its bracket.
3.
Check that connector P106/PMD is fully seated in connector
J106 on the CMX controller board.
4.
Load paper. Power on the printer. Replace the paper detector
switch assembly if either message appears.
5.
Inspect the paper ironer. If the paper ironer has slipped up into
the print line, reposition the paper ironer.
6.
Load paper. Power on the printer. Replace the CMX controller
board if either message appears. Record the message and
return it with defective CMX board.
CLEAR PAPER JAM message
will not clear and paper does not
move
1.
Remove the paper path or pedestal top cover. Make sure
connector P107/PAPR M is fully seated in connector J107 on the
CMX controller board.
2.
Check the paper feed motor pulley for looseness. Hold the collar
snug against the motor pulley and torque the 7/64 inch setscrew
to 25
±
2 inch-pounds (2.82
±
0.23 N•m).
3.
Check the condition and tension of the paper feed timing belt.
Adjust the paper feed timing belt. Replace the belt if it is
damaged.
4.
Load paper. Power on the printer. Press
PAPER ADVANCE
and
VIEW
several times and check that paper moves correctly in both
directions. Replace the paper feed motor if the message appears
or the paper moves erratically.
5.
Power on the printer. Press
PAPER ADVANCE
and
VIEW
several times and check that paper moves correctly in both
directions. Replace the CMX controller board if the message
appears or the paper moves erratically. Record the message and
return it with defective CMX board.