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XEROX DFC165 & DWC165c Service Manual
6-5
3)
a message providing the
result of the test run on the electrical print head
circuits
.
Fig. 6-3a
6.1.2.1 Checking the Ink Flow
Check the numbered scale:
- if
all the lines
that make up the scale are
present
, all the nozzles are working
- if
one or more lines are missing
, the fault could be due to one of the following:
•
dirty printing nib: clean the rubber print head pad
•
foreign body on printing nib: remove it taking care to avoid touching the
electrical contacts on the print head
•
air bubble in the ink: carry out the CLEANING (see section 6.1.3) followed by
the PRINT CHART test (see section 6.1.4); if the fault persists, repeat the
CLEANING up to three times, and then replace the print head if this does not
have the desired effect.
(2)
(1)
(3)
Содержание Document FaxCentre 165c
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