Lexmark 4039-1XX Manuale Utente

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Diagnostic Information
29
4039-1XX
Regularly Spaced Marks
This is caused by a defect on one of the rolls or gears in the print 
process. The damaged part can be determined by the spacing of the 
marks according to the following table. Find and replace the 
damaged part.
Spacings other than the ones listed could be caused by damage or a 
bind in the gear train.
Residual Image
Residual image--the “walking” of a leftover image down the page--is 
probably the result of failed erase lamps not discharging the 
photoconductor, or of a failed cleaner inside the print cartridge. It 
can also be caused by a failed fuser hot roll retaining toner and 
redepositing it on the page. Check that the erase lamp voltage at 
(10P) J20-1 (10R/12R/12C/12L) J20-16 (16L) J17-16 is +24VDC 
and that the cable has continuity.
To test the erase lamps, jumper (10P) J20-2 (10R/12R/12C/12L) 
J20-15 (16L) J17-15 to ground.
Component
Print Defect Spacing on Page
PC Drum (part of print cartridge)
125.7 mm
Transfer Roll
53.1 mm
Fuser Hot Roll10P/12R/12C/12L/16L
78.9-79.2 mm
Fuser Hot Roll 10R
64.7 mm
Fuser Backup Roll
69.1 mm
Charge Roll (part of print cartridge)
37.1-37.7 mm
Developer Roll (part of print cartridge)
40.0 mm
Prealigner Feed Roller
68.5 mm
Auxiliary Feed Roller
68.5 mm