Lexmark 2591+ - Power Problems; Print Quality Problems

2-6 Service Manual
2580+, 2581+, 2590+, 2591+
Go Back
Previous
Next
Power problems
Print quality problems
Lower feed roll shaft rotates, but paper
does not feed.
Pressing FormFeed does not feed
paper.
Abnormal noise created while printer is
feeding.
Paper jams, skews, or creases.
Incorrect or no line spacing: wider,
narrower, or overlapping lines.
Push/Pull Tractor does not work.
Be sure the Paper Select lever is in the correct position.
Go to “Paper feed service check” on page 2-13.
Incorrect Top-of- form positioning. Go to “Top-of-forms service check” on page 2-18.
Symptom Action
When the power switch is on, the Power
light does not turn on or the printer does
not start.
The Power light blinks or changes
intensity.
Check the continuity of the power cord and the voltage of the user’s
outlet.
Go to “Power service check” on page 2-16.
Symptom Action
No print, but the carrier moves as if
printing.
Adjust the Forms Thickness lever to a lower number.
Be sure the printhead cables are not loose or damaged.
Be sure the interface cable is connected properly.
Check the ribbon cartridge for binds or damage.
Go to “Print speed service check” on page 2-17.
Print density is light. Turn the ribbon advance knob on the print cartridge from 1 to 2 to
increase the darkness of print.
If the ribbon has reached its end of life or is worn, replace the ribbon
cartridge.
Go to “Carrier service check” on page 2-10.
Uneven print density across the print
line
Specific dots missing
Extra dots or lines printing
Turn the ribbon advance knob on the print cartridge from 1 to 2 to
increase the darkness of print.
Be sure the printhead cables are connected correctly to the printhead.
Clean the printhead.
Set the Forms Thickness lever to position 1, and run the print test.
Go to “Carrier service check” on page 2-10.
Symptom Action
CAUTION
Always unplug the power cord before doing any continuity measurement.