Table 10. MAP 0140: Printhead Drive (continued)
Step Questions/Actions Yes No
6.
An open printhead thermal sensor can
cause the printhead drive to stop.
Remove the printhead. See “Printhead”
on page 356.
For Model A00, 001 and 003, see
“18-Wire Printhead Wiring (Models A00,
001, and 003)” on page 242 or for Model
002 see “9-Wire Printhead Wiring (Model
002)” on page 244 to measure the
resistance of the thermal sensor.
Measure between pins 5 and 6 on the
printhead 26-pin connector (these pins
are the same for both an 18-wire and a
9-wire printhead).
Is the resistance 1000 ohms ±6% (60
ohms)?
Go to step 7 on page 74. Install a new printhead. Carefully follow
the replacement procedure, “Printhead”
on page 356.
Run T&D in automatic mode to verify
correct printer operation. For Model
A00, see “How To Run the Test and
Diagnostic (T&D) Programs” on
page 161. For Models 001, 002, or 003,
see “How To Run the Test and
Diagnostic (T&D) Programs” on
page 201.
Chapter 1. Diagnosing Problems
73
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