Lexmark C 746 Service Manual

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242.17—Paper Jam service check
Step Questions / actions Yes No
1Has paper been fed from an input option 
before?Go to step 4. Go to step 2.
21. Turn the printer off
2. Remove the rear frame cover. See “Rear 
frame cover removal” on page 4-47.
3. Remove the right cover. See “Right 
cover removal” on page 4-51.
4. Check the cable in connector JOPT1 for 
proper connection to the system board, 
cable pinch points, and any other damage 
to the cable or...

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242.21, 243.21, 244.21. 245.21, 242.30, 243.30, 244.30, 245.30—Paper Jam service 
check
242.26—Paper Jam service check
Step Questions / actions Yes No
11. Fan the media on the tray.
• Use Tray 2 for 242.21 and 242.30 
errors.
• Use Tray 3 for 243.21 and 243.30 
errors.
• Use Tray 4 for 244.21 and 244.30 
errors.
• Use Tray 5 for 245.21 and 245.30 
errors.
2. Bring the printer up in Diagnostics Menu 
(turn off the printer, press and hold 
buttons 3 and 6,...

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242.27—Paper Jam service check
242.29—Paper Jam service check
2Is the tray 3 a high-capacity input tray (2,000-
sheet feeder)?Replace the HCIT top 
plate. See “Top plate 
assembly removal” on 
page 4-206.Replace the complete 
tray 3 option.
Step Questions / actions Yes No
11. Bring the printer up in Diagnostics Menu 
(turn off the printer, press and hold 
buttons 3 and 6, then turn on the printer). 
2. Navigate to PRINT TESTS > select the 
tray below...

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242.32, 243.32, 244.32, 245.32—Paper Jam service check
243.02—Paper Jam service check
Step Questions / actions Yes No
11. Remove the input option tray.
• Remove tray 2 for 242.32 errors.
• Remove tray 3 for 243.32 errors.
• Remove tray 4 for 244.32 errors.
• Remove tray 5 for 245.32 errors.
2. Check for obstruction on the paper path.
3. Check the input option pass-through 
sensor flag for any damage.
4. Remove the input option from the printer 
and check the...

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243.03, 243.11—Paper Jam service check
21. Turn the printer off.
2. Remove the rear frame cover. See “Rear 
frame cover removal” on page 4-47.
3. Remove the right cover. See “Right 
cover removal” on page 4-51.
4. Check the connector JOPT1 for proper 
connection to the system board, the cable 
for pinch points, and the cable or 
connector for any other damage.
Is the cable damaged?Replace the option cable. 
See “Option cable 
removal” on page...

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243.05—Paper Jam service check
2Is tray 3 a high-capacity input option (2,000-
sheet feeder)?Replace the HCIT top 
plate. See “Top plate 
assembly removal” on 
page 4-206.Replace the complete 
tray 3 option.
Step Questions / actions Yes No
1Has paper been fed from an input option 
before?Go to step 5. Go to step 2.
21. Bring the printer up in Diagnostics Menu 
(turn off the printer, press and hold 
buttons 3 and 6, then turn on the printer).
2. Navigate to...

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243.10—Paper Jam service check
41. Carefully lift the printer off the option, and 
lay the printer on its back.
2. Check the option connector for damage.
Is the connector damaged?Replace the option cable. 
See “Option cable 
removal” on page 4-135. Go to step 5.
5Is tray 3 a high-capacity input option (2,000-
sheet feeder)?Go to step 7. Go to step 6.
6Replace the complete tray 3 option.
Does the error clear?Problem resolved. Replace the system board....

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243.17—Paper Jam service check
Step Questions / actions Yes No
1Has paper been fed from an input option 
before?Go to step 4. Go to step 2.
21. Turn the printer off.
2. Remove the rear frame cover. See “Rear 
frame cover removal” on page 4-47.
3. Remove the right cover. See “Right 
cover removal” on page 4-51.
4. Check the cable in connector JOPT1 for 
proper connection to the system board, 
cable pinch points, and any other damage 
to the cable or...

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243.26—Paper Jam service check
243.27—Paper Jam service check
243.29—Paper Jam service check
Step Questions / actions Yes No
11. Determine the input tray.
2. Bring the printer up in Diagnostics Menu 
(turn off the printer, press and hold 
buttons 3 and 6, then turn on the printer).
3. Navigate to PRINT TESTS > select 
indicated input tray > Single.
Did the page feed correctly?Problem resolved Go to step 2.
2Is tray 2 a high-capacity input tray...

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244.02—Paper Jam service check
Step Questions / actions Yes No
1Has paper been fed from an input option 
before?Go to step 4. Go to step 2.
21. Turn the printer off.
2. Remove the rear frame cover. See “Rear 
frame cover removal” on page 4-47.
3. Remove the right cover. See “Right 
cover removal” on page 4-51.
4. Check the connector JOPT1 for proper 
connection to the system board, the cable 
for pinch points, and the cable or 
connector for any other...