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3305
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If a print error such as paper out, ribbon out, or cover open
occurs during printing; the Burn In test halts when the printer
deselects.
i .
When the print error is cleared and the printer is reselected,
Burn In will restart where it was interrupted.
J•
If a hardware fault is encountered during testing the Malfunction
LED will illuminate.
Then the Error Code seven segment display
wil 1 cycle through and display each error code generated by the
fault for two seconds
(refer
to the customer engineering error
codes contained in paragraph 4-6).
k.
If
the Test Switch is pressed during printing the Burn In test
will stop and all LEDs will be extinguished.
The printer can then
be restarted only by turning the printer off and then on again.
1.
The printer switches are only monitored during printing.
If
one
of the switches is pressed during the Power Up Diagnostic test, it
will not affect the test.
4.8
SELF TEST AND MECHANISM VERIFICATION TEST
4.8.1
GENERAL
The
mechanism
verification
test
doubles
as
the
customer
initiated
self-test.
The test consists of printing nine-132 character lines (see figure
3-3) at ten pitch (giving a 13.0 inch line or full platen width).
Each of the
nine lines begins with a "T" to test vertical alignment.
The first eight
~ines
simply step the wheel petal-by-petal to check the print quality of each
character.
The ninth line of characters tests horizontal registration.
It
begins with a "T" which is followed by the alpha/numeric sequence "ErZ2mE"
repeated to complete the remaining spaces of the ninth line to end the test.
The test starts using a low hammer force but can be changed to high hanuner
force by pressing the high hammer force
switch
(depressing the switch may
cause a delay in printing as long as the switch is held down).
The ribbon
type, paper out, ribbon out, and cover open switches operate normally.
4.8.2
SELF TEST AND MECHANISM
v~'IFICATION
TEST PROCEDURE:
a. Set the five test dip switches to the setting for the self test.
b. Place a supply of 13.0 inch paper into the platen.
c. Press the Test and then the Select switch.
d. If the printer hardware operates correctly the Test and Low LED's will
light and the Malfunction LED will be extiguished .
e.
If
the Malfunction LED illuminates check the Error Code seven segment
display.
It will display one of the customer display Error codes (see
Table 3-1) detailing the fault that prevents the test from being run.
4-9
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Table of Contents
Troubleshooting
