3–4
Troubleshooting
Dynamic RAM Fault *
Instruction
Indication
Yes
No
1.
Set power switch to O (off).
Wait 15 seconds. Set power
switch to 1 (on).
“Dynamic RAM Fault * ”
message.
Step 2.
Return printer to
normal operation.
2.
Disconnect the input data line
from the host computer. Set
power switch to O (off). Wait
15 seconds. Set power
switch to 1 (on).
“Dynamic RAM Fault * ”
message.
Step 3.
Return printer to
normal operation.
3.
Make a Diagnostic Check of
the Microprocessors (page
3–21).
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Summary of Contents for P4280
Page 1: ...P4280 Line Matrix Printer Maintenance Manual R ...
Page 2: ......
Page 3: ...P4280 Line Matrix Printer Maintenance Manual R P N 155064 001 Rev B ...
Page 236: ...A 22 Configuring the Printer ...
Page 246: ...C 2 Torque Table ...
Page 263: ...D 17 Wire Data Cable No Part No Description W7 150649 001 Cable Assembly AC Ground PIN 1 ...
Page 296: ...8 Index Notes ...
Page 297: ......