Specifications

4–6 Troubleshooting
Ham. Bank Hot
NOTE: The printer has protective circuits that sense conditions which can
lead to overheating. When such conditions are sensed, print speed
is reduced 50%. If the printer consistently prints at half speed, it
may be printing long jobs of very dense graphics or operating in a
severe environment. A severe environment is consistently above 90°
Fahrenheit (32° Celsius) or is dirty enough to create blockage of the
blower ducts. If the printer is located in such an environment,
consider relocating it to a cooler, cleaner area or reducing the size
and duration of the print jobs.
Instruction Indication Yes No
1. Press the CLEAR switch.
The printer continues the print
job.
No further
attention required.
The printer
continues original
print job then fault
message
reappears.
2. Check ambient temperature
where printer is operated.
Printer area at or above 100° F
(37° C).
Allow hammer
bank to cool for 10
minutes. Cool
printer area or
reduce size and
duration of print
jobs.
Go to step 3.
3. Run a diagnostic self–test
(page 4–27).
Unobstructed air flow through
blower duct.
Go to step 4. Remove
obstructions from
blower
assemblies.
4. Cool the hammer bank for 2
hours. (It must be at room
temperature.) Run the
hammer bank diagnostics
program to calibrate the coils
(page NO TAG). Run a
diagnostic self–test (page
4–27).
“Ham. Bank Hot” message. Replace the
hammer bank.
Run the hammer
bank diagnostics
program to
calibrate the coils
(page NO TAG).
Return the printer
to normal
operation.