Novexx Solutions ALX 92x, Service Manual

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07/15 Rev. 02 SERVICE MANUAL Fault Location
DPM – PEM – ALX 92x
5
Print quality
Transport unit
Memory card
Problem Possible cause Solution
Print faded
Printhead dirty or defective
Clean or replace thermal bar, see topic section
Maintenance

Printhead setting incorrect
Check settings (e.g. print contrast, print head resi-
stance) and alter if necessary
Ribbon and material not
aligned
Check ribbon type and material type, if nec. alter
Ribbon possibly super-
imposed
Insert new ribbon
Poor or uneven print Print roller damaged or soiled Check and if necessary clean or replace roller
Feed in order but no
print image
Printhead setting too low
Check setting print contrast (press Prog. button in
on-line mode or parameter
PRINT PARAMETER >
Print contrast
) and if nec. correct.
Ribbon inserted incorrectly
(colour side)
Check and if necessary correct
Printhead not fixed to bracket Fix thumb screw
Printhead defective Check printhead and if necessary replace it
Printhead cable not or incor-
rectly plugged in
Check and if necessary plug in again
CPU board defective Check and if necessary replace mainboard
[Tab. 8] Unsatisfactory print quality and the possible reasons
Feature Possible cause Solution
No material transport Pressure rollers set incorrectly Check and if necessary set
Drive belt defect
Check and if necessary replace belt
Stepper motor defect Check and if necessary replace motor
Board defect Check and if necessary replace board
[Tab. 9] Faults, which can occur at the transport unit.
Problem Possible cause Solution
Memory card is not
recognised
Contacts dirty Check and if necessary replace
Card defective Check and if necessary replace
Card type does not corre-
spond to approved type
Check and if necessary replace
[Tab. 10] Possible problems with memory cards