To Install The Print Head; Precautions About The Use Of Print Heads - Olivetti OFX 180 Instructions Manual

T
O INSTALL THE PRINT HEAD
1-2 Lift the print head compartment cover by putting your finger in the
notch at its centre, as shown in the figure.
3. Remove the print head from its package and, holding it by the grip,
peel off the film covering the nozzles.
4. Avoid touching the nozzles and the electrical contacts with your
fingers.
5. Place the print head in its seat with the electrical contacts facing
towards the front of the fax machine.
6. Push the print head in the direction indicated by the arrow until it
clicks into place and close the print head compartment cover.
n o t E
If, after the print head has been installed, the "CHECK PRINT
HEAD" message appears again, try removing it and then
reinserting it, pressing it more firmly into position. If the mes-
sage remains on the display, remove the print head and
clean the electrical contacts of the print head and the car-
riage, see "To clean the electrical contacts of the print
head", section "Maintenance operations".
n o t E
To replace the print head, see the section "Maintenance
operations".
4
A
UTOMATIC PRINT HEAD NOZZLE CLEANING AND TESTING
PROCEDURE
Once the print head has been inserted, the fax machine starts
the nozzle cleaning and checking procedure, which is com-
pleted by:
• the printing, on the sheet loaded automatically, of a diagnostic
test sheet containing:
- a numbered scale, for checking the flow of ink and the
electrical circuits of the print head nozzles.
- a group of graphics and text, so that the printing quality
may be evaluated.
• the display shows the message: "CHECK PRINT OUT",
"1 = EXIT 0 = REPEAT".
Examine the print test sheet as follows:
• Check that the numbered scale is not interrupted at any
point and that the black areas do not present any horizon-
tal white lines: if these conditions, which confirm that the print
head has been inserted correctly and is working properly, are
respected, set the value 1. The fax machine returns to its initial
stand-by status and is ready for use. The display shows the
message:
• On the other hand, if there are any interruptions or white
lines present, set 0 to clean the nozzles again: if the new print
test continues to be unsatisfactory, repeat the procedure an-
other time. Then, if the printing quality does still not meet your
expectations, clean the electrical contacts and the nozzles as
indicated in "To clean the electrical contacts of the print
head" and "To clean the nozzles of the print head", sec-
tion "Maintenance operations".
P
RECAUTIONS ABOUT THE USE OF PRINT
HEADS
On this model of fax machine you can only use monochrome print
heads (black). In addition, remember that you can only use single-
block print heads (non rechargeable).
When you need to change the print head, take note of the following
precautions:
• do not touch, or stand the print head on the ink jets or the
contacts;
• never try to re-load the print head, as this could damage the
print head or the facsimile.
This will ensure long life and efficiency of the print head and a high
print quality.