HP Distributed Print Service Administration Guide

310 Chapter10
Managing Supervisors and Physical Printers
Querying for Physical Printer Information
example, the supervisor and spooler have lost communications but the
supervisor does not identify this condition until the next time it signals
the spooler. The state of the physical printer is idle and the value of the
registered-with-spooler attribute is true, indicating that it is
registered. In this situation, you can determine whether the physical
printer can still communicate with the spooler by issuing the pddisable
command followed by the pdenable command to enable the physical
printer again. When you enable a physical printer, it tries to contact the
appropriate spooler to indicate that it is ready for a job. HPDPS issues
an error message if the physical printer cannot communicate with the
spooler.