Lexmark CX310n Service Manual page 131

Actions
Step 4
Inspect the paperfeed pick tires on the tray that fails to pick.
Do they appear worn or damaged?
Step 5
Replace the pick tires on the faulty tray, and then print a page with media
from the affected tray. See
Did the page print?
Step 6
Remove the rear cover. See
Check the option cable connected to JOPT1 for continuity.
Is the cable properly seated? Is there continuity?
Step 7
Replace the cable, and print from both option trays.
Did the pages print from both trays?
Step 8
Print a menu settings page. If two option trays are used, then the
650‑sheet tray will appear as tray 2, and the 550‑sheet tray will appear as
tray 3.
Are all of the attached option trays listed on the first page of the menu
settings pages?
Step 9
Remove the 650‑sheet tray from the printer. Attach the 550‑sheet tray
directly to the printer. Print a page from the 550‑sheet tray.
Did the page print?
Step 10
With only the 650‑sheet tray attached to the printer, print a page from
the 650 sheet tray.
Did the page print?
"Pick tires removal" on page
"Rear cover removal" on page
Diagnostic information
Yes
Go to step 5.
Problem resolved.
309.
Go to step 8.
221.
Problem resolved.
Go to step 9.
Go to step 11.
Go to step 11.
131
7527
No
Go to step 6.
Go to step 6.
Go to step 7.
Go to step 8.
If the 550‑sheet option
failed to appear, then
go to step 9.
If the 650‑sheet tray
failed to appear, then
go to step 10.
Replace the 550‑sheet
tray.
Replace the 650‑sheet
tray.