Olivetti JET-LAB 600@, User Manual

Page: 120 / 130

M
AINTENANCE
105
If, after repeating the print head cleaning procedure
three times, the print quality is still not up to
standard, continue as follows to obtain a satisfactory
print sample:
−
Use the machine to make a copy of a
document that contains the type of graphic or
text required and evaluate the quality.
−
Change the type of paper and run the print
test.
−
Remove the print head and check that there
are no dust particles on the print nozzles. If
there are, remove them carefully. Taking care
not to touch the clean nozzles, clean the print
head pads (see “Cleaning the print head
pad”) and re-insert the print head and run the
print test.
−
Remove the print head and clean the electrical
contacts on the print head and on the print
head carriage (see “Cleaning the print head
electrical contacts”), then re-insert the print
head and run the print test.
−
Ask for technical assistance.
CLEANING THE PRINT HEAD ELECTRICAL
CONTACTS ...
1.
Press the key. The display shows:
“CHANGE PRINT HEAD: PRESS RESET”.
2.
Lift the print head compartment cover.