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Print Head Replacement
(continued)
Nov 93
Print Head Test
NOTE:
Recommended paper for print head tests:
20-lb, single-part, white (such as Moore's
#
141
OC)
If a print head actuator fails, run the print head test to check for
weak actuators that may also need to be replaced.
With the printer in
Local,
press:
•
3 - (Function Mode)
•
0 or 1 - (Next Option or Previous Option) until
FCT:Alignment
is
displayed.
•
4 -
(Enter) to enter the alignment menu.
•
4 -
(Enter) to enter the patterns menu .
•
0 - (Next Option) until
Patrn:Head Test
is displayed.
•
4 -
(Enter) to start the test.
The printer will switch to low intensity and print a checkerboard
pattern. A white stripe in the printout identifies the location of a
failed print actuator. A weak or marginal actuator will have missing
or light dots in the printout.
Leave the printout in the printer to help identify the correct print
head to be removed.
Removal
To remove and replace a print head, complete the following steps:
1. Turn the printer power off and disconnect the power cable from
the AC source.
2. Open the top access door and set the print gap adjustment
wheel to the LOAD position.
3. Remove the ribbon cartridge.
4. Tilt the control panel up and towards the front of the printer.
5. Unscrew the two captive thumbscrews and remove the ribbon
deck.
NOTE: If
the printer has been printing for an extended time,
allow it to cool for five minutes.
6. Remove the Allen wrench from the foam padding. See
Figure 3-2.
3-13
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