Table 10. MAP 0140: Printhead drive (continued)
Step
Questions/Actions
Yes
No
6.
Disconnect the 26-conductor printhead cable from the logic
board (see Chapter 4, “Locations” on page 145).
See Printhead cable wiring to measure the resistance of pin
5 end-to-end and pin 6 end-to-end.
Is the resistance 5 ohms or less for both pins?
Re-install the printhead.
Carefully follow the
replacement procedure,
“Printhead” on page 232.
Install a new carriage motor
(see Carriage drive motor
assembly and fan).
- or -
Install a new logic board (see
Logic board).
- or -
Install a new encoder board
(see Encoder board).
- or -
Install a new encoder board
strip (see Encoder strip).
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs.
Install new printhead cables.
Re-install the printhead.
Carefully follow the
replacement procedure (see
Printhead).
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs).
Chapter 1. Diagnosing problems
51
Summary of Contents for 4247-V03
Page 24: ...Reference table 8 ribbon lift and 26 pin cable connectors 93 Chapter 1 Diagnosing problems 24 ...
Page 138: ...Operator panel cable wiring Chapter 3 Wiring diagrams 138 ...
Page 144: ...Tractor assembly cable wiring Chapter 3 Wiring diagrams 144 ...
Page 164: ...Chapter 5 Removals service checks and adjustments 164 ...
Page 173: ...Table 24 Print quality sample 1 2 3 Chapter 5 Removals service checks and adjustments 173 ...
Page 246: ...Assemblies Chapter 6 Parts catalog 246 ...
Page 307: ...Taiwanese EMC Notices 307 ...
Page 310: ...Index Copyright IBM Corp 2002 310 ...
Page 311: ...IBMR Part Number 75P1301 Printed in U S A G544 5873 00 1P P N 75P1301 ...