Printronix P7000 Series Maintenance Manual page 118

Chapter 3
Troubleshooting Display Messages
Table 5. P7000 H-Series (Spool) Error Messages List
Displayed Message
104:POWER SUPPLY
HOT
118
Explanation
The printer has sensor
circuits that sample the
operating temperature of key
components of the power
supply. When higher than
normal temperatures are
sensed, print speed is
automatically reduced. If the
printer runs at reduced
speed for an extended
period of time, the POWER
SUPPLY HOT message is
sent to the LCD and printing
stops, allowing printer
components to cool down.
Pressing the CLEAR key
resumes the print task.
Check the operating
environment. A severe
environment is one with an
ambient temperature at or
above 40° Celsius (104°
Fahrenheit) or is dirty
enough to create blockage
of the cabinet fan vents. The
printer must never be run at
ambient temperatures
greater than 40° Celsius
(104° Fahrenheit). If the
printer is located in such an
environment, relocate it to a
cooler, cleaner area.
Solution
1. Inspect printer environment for
severity. Advise the user to move
the printer to cooler, cleaner
location.
2. Check the kinds of print jobs the
user is running: look for very
dense graphics and layouts.
Advise the user to run jobs in
smaller batches.
3. Power off the printer. Remove the
paper path or pedestal top cover.
Check that the plastic power
supply guard/air deflector is
correctly positioned over the
power supply board. WARNING:
DO NOT TOUCH THE POWER
SUPPLY, but hold your hand
close enough to check for heat
radiating off the power supply
board. If the power supply is
noticeably hot, let it cool down,
then replace it.
4. Check that all fan cables are
connected.
5. Inspect vents and fan airways for
obstructions. Look underneath
cabinet models for items blocking
the cabinet exhaust vents.
6. Install paper path or pedestal top
cover. Load paper. Power on the
printer. Run the "All E's" print test
for 5-10 minutes. If the message
appears, replace the controller
board. Record the message and
return it with the defective board.