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Troubleshooting the Printing System 7-83
If the host system and printer still are not communicating and you
have addressed the issues in Table 7-34, replace the Formatter PCA
and the EIO card and reconfigure the printer. If the problem persists,
a protocol analyzer may be needed to find the source of the problem.
CAUTION HP LaserJet printers are not designed to work with mechanical
switch-box products without proper surge protection. These devices
generate high transient voltages that cause permanent damage to the
Formatter PCA. This circumstance is not covered by the
Hewlett-Packard warranty.
If using a bidirectional
parallel cable, is it longer
than 10 feet (3 meters)
long?
The maximum recommended cable length for the printer is 10
feet (3 meters). Use a serial interface connection or move the
printer closer to the host.
Do all the current Control
Panel Configuration Menu
items match the host
system's parameters?
Make appropriate changes. If host system changes are made, be
sure to reboot the system, or otherwise ensure the changes are in
effect.
Does the printer have a bad
interface port?
If possible, try a different printer interface than the one with the
problem. Reconfigure the printer and host appropriately.
Does the host have a bad
interface port?
If possible, try a different host system port. Reconfigure both the
host and printer appropriately.
Table 7-34. Communications Checks (continued)
Checks Action