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2-118 Service Manual
Print quality—blurred or fuzzy print
Blurred of fuzzy print is usually caused by a problem in the main drive gearbox assembly, alignment assembly,
any feed roller, or in the transfer roll bearings or transfer roll. Check the gearbox assembly for correct operation.
Check the transfer roll for binds or a contaminated shaft or bearings.
Blurred print can also be caused by incorrect feeding from one of the input paper sources, paper trays, duplex
option, or envelope feeder.
Check the high voltage contacts to ensure they are not bent, corroded, or damaged. Replace as necessary.
Print quality—background
Service tip: Some background problems can be caused by rough papers, non-Lexmark toner cartridges or if the
media texture is set to the rough setting.
Some slick or coated papers may also cause background problems. Some problems occur with printers that run
a large amount of graphics in a humid environment. The customer may try to improve the print quality by
increasing the transfer setting.
Check the charge roll to make sure it is not at the end of life.
FRU Action
1 Printhead The printhead on this printer cannot be cleaned. Try another
printhead if all other attempts fail to correct a background problem.
2
Transfer roll assembly Check the high voltage contact from the HVPS to the transfer roll.
Check the transfer arm assembly right side bearing for
contamination, pitting, or a loose cable to the bearing. If any
problems are found, replace the defective part. Check the transfer roll
shaft for contamination, wear, or pitting on the ends of the shaft that
go into the bearings. If a problem is found, clean the ends of the shaft
or replace the transfer roll assembly.
3
High voltage contacts Check the high voltage contacts on the right side frame to ensure
they are clean and not bent, deformed, or pitted. If incorrect, replace
the contact.