Maintenance Operations; To Replace The Print Head; Cleaning The Print Head And Testing; The Nozzles - Olivetti Fax-Lab 200 Instruction Manual

M
AINTENANCE OPERATIONS
T
O REPLACE THE PRINT HEAD
.
1-2 Lift the print head compartment cover by putting your finger in the
notch at the centre as shown in the figure.
3. Release the print head by pressing the levers and then remove it
from its seat.
4. Take the print head out of its box and, holding it by its grip, peel off
the film covering the nozzles.
5. Avoid touching both the nozzles and the electrical contacts with
your fingers.
6. Insert the print head in its seat with the electrical contacts facing
towards the front of the fax machine.
7. Push the print head until it clicks into place and close the print head
compartment cover.
n o t e
If you have replaced the print head because the ink ran
out, when the print head cover is closed, the fax machine
will automatically recognize that the print head has been re-
placed and the display will show the message "NEW PRINT
HEAD? 1 = YES, 0 = NO". Set the value 1.
38
At this point, the fax machine automatically cleans the
print head and tests the nozzles, printing out the result of
the diagnostic test. Examine the diagnostic test result with
reference to "To install the print head", section "Prelimi-
nary operations".
If you replaced the print head because of a deterioration in
printing quality, proceed as follows:
C
LEANING THE PRINT HEAD AND TESTING

THE NOZZLES

If you notice a deterioration in print quality, you can
quickly clean the print head and test the nozzles by follow-
ing a procedure that ends by printing out the diagnostic test
result with regard to its condition.
Until the display shows:
HEAD MAINTENANCE
The display shows:
NEW HEAD: ON
Press |/} to view the other available option: "NEW HEAD:
OFF".
To confirm your choice. The display shows:
CLEANING: ON
The display shows:
CLEANING: ON
The fax machine cleans the print head and tests the noz-
zles, printing out the result of the diagnostic test.
Examine the diagnostic test result and consult "To install
the print head", section "Preliminary operations".
N O T E
The procedure may be aborted at any time, if desired, by
pressing the key.
N O T E
If the quality of the test result still fails to meet your expecta-
tions after carrying out the cleaning procedure, continue as
follows, stopping when you get a satisfactory printing quality:
- Make a copy of a document with the desired type of graph-
ics or text on the fax machine and evaluate its quality.
- Change the type of paper (the paper in use could be
excessively porous) and repeat the procedure.
- Remove and reinsert the print head.
- Remove the print head and check that there are no foreign
bodies on the print nozzles; if there are, remove them
carefully, taking care not to touch the electrical contacts.
Finally, reinstall the print head.