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154 Troubleshooting
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Printer Comm Error There was an error in communicating with
the HP LaserJet 3100/3150 product.
Make sure that the parallel cable is
securely connected between the HP
LaserJet 3100/3150 product and the
computer. Use the clips to clip the cable
to its connector.
If the error persists, unplug the power
cord from the power source for 10
seconds, and then replug it in.
Try connecting the product to a different
power source or surge protector.
If neither of these solutions works,
replace the formatter.
Printer Comm Error
^1
In Service Mode only. There was an error
in communicating with the HP LaserJet
3100/3150 product.
Make sure that the parallel cable is
securely connected between the HP
LaserJet 3100/3150 product and the
computer. Use the clips to clip the cable
to its connector.
If the error persists, unplug the power
cord from the power source for 10
seconds, and then replug it in.
If neither of these solutions works,
replace the formatter.
Printer Fixing Error
Replace Fixing Unit
There is an error in the print engine. Unplug the power cord from the power
source for 10 seconds, and then replug
it in.
Try connecting the product to a different
power source.
Check the cabling connections to the
heating element.
Perform the “Heating element check,”
which is discussed later in this chapter.
If the error persists, replace the heating
element.
If, after replacing the heating element,
the error persists, replace the ECU.
Message Cause Solution