Error
Description
Diagnostic Action
Extra
Print
Dots
l.
Run Offline Diagnostic Test (see page
1400-33). Examine the / and V-characters
for extra dots.
2.
Remove CN6
on
Driver Circuit card (see
Section 5, "Locations"). Measure
approximately
22
ohms between pin
CN6-10 (male side) and each head coil pin
(CN6-1
to
9 - male side).
Resistance
=22 ohms?
YES:
Replace
both
Control cards (see
Section 3, "Removal/Replacement").
NO:
Disconnect print head cable and
check pins I through 9 (see Section
5,
"Locations") for approximately
22
ohms.
Resistance
=22 ohms?
YES: Replace Print Mechanism
assembly (see Section 3,
"Removal/Replacement").
NO:
Replace print head (see Section
3, "Removal/Replacement").
1400-22
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