Lexmark Optra E312L Service Manual - Page 50

Print Quality Service Check, Paper trees, wrinkles, stacks poorly or curls, Blank

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4044-XXX Paper "trees", wrinkles, stacks poorly or curls FRU Models E310 & E312 Transfer Roller Action This problem is most likely due to a worn transfer roller. A worn transfer roller causes the printer to run hotter than required for the media being printed. Excessive heat can cause paper treeing problems, poor stacking or curl. Print Quality Service Check Blank page FRU Action Models E310 & E312 Toner Cartridge Printhead Printhead Cable HVPS Engine/LVPS Board (Model E310) Engine Board (Model E312) Remove the toner cartridge and gently shake the assembly to evenly distribute the toner. Blank pages can be caused by a defective printhead assembly, high voltage power supply or engine/ LVPS board. Disconnect the printhead cable from the HVPS and measure the signals on connectors CN3 and CN4. Go to the "High Voltage Power Supply (model E310)" on page 5-16 in the connector locations chapter and check the voltage measurements. If the voltages are correct, check the printhead cable for continuity. If the cable measures continuity, replace the printhead. If the cable does not measure continuity, replace the cable. If the voltage measurements are not correct, replace the HVPS. If the problem still exists, replace the engine/LVPS board on the model E310 or the engine board on the model E312. 2-28 Service Manual

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2-28
Service Manual
4044-XXX
Paper "trees", wrinkles, stacks poorly or curls
Print Quality Service Check
Blank page
FRU
Action
Models E310 & E312
Transfer Roller
This problem is most likely due to a
worn transfer roller. A worn transfer
roller causes the printer to run hotter
than required for the media being
printed. Excessive heat can cause
paper treeing problems, poor
stacking or curl.
FRU
Action
Models E310 & E312
Toner Cartridge
Remove the toner cartridge and
gently shake the assembly to evenly
distribute the toner.
Printhead
Printhead Cable
HVPS
Engine/LVPS Board (Model E310)
Engine Board (Model E312)
Blank pages can be caused by a
defective printhead assembly, high
voltage power supply or engine/
LVPS board. Disconnect the
printhead cable from the HVPS and
measure the signals on connectors
CN3 and CN4. Go to the
“High
Voltage Power Supply (model E310)”
on page 5-16
in the connector
locations chapter and check the
voltage measurements. If the
voltages are correct, check the
printhead cable for continuity. If the
cable measures continuity, replace
the printhead. If the cable does not
measure continuity, replace the
cable. If the voltage measurements
are not correct, replace the HVPS. If
the problem still exists, replace the
engine/LVPS board on the model
E310 or the engine board on the
model E312.