Lexmark Optra C710 Service Manual page 104

5016-001
D Transparencies are not detected, printer does not slow to half
speed.
FRU
1 OHP Detect
Reflection Plate
2 Transparency
Paper Detect
Sensor (PHI 5)
E Labels do not feed, or feed improperly from the MPT.
FRU
1 Labels
F Card stock does not feed properly from the MPT.
FRU
1 Card Stock
2-38
Service Manual
Action
Check the inner front cover OHP detect reflection
plate to be sure it is not damaged or missing.
Clean the plate, if dirty, or replace if damaged or
missing.
This sensor is located on the paper pass/
transparency detect sensor board. Check the
sensor for proper operation. If no problem is found,
replace parts in the following order:
1. Paper Pass/Transparency Detect Sensor Board
2. Engine Board
3. Cables
Action
Be sure the labels are paper labels designed for
laser printers. Do not use vinyl labels. Use only
labels that have no gaps between them.
Be sure no adhesive is exposed on the sheets.
Check the labels to be sure they do not have a
coating or sizing applied to make the labels
liquid-resistant.
Action
A small quantity of card stock can be fed from the
MPT only. Be sure not more than 30 sheets of card
stock are loaded into the MPT tray at a time.
Be sure the stock meets specifications.