HP (Hewlett-Packard) 4550 Printer User Manual


 
EN
Chapter 9 189
Printer response problems
No display message
Cause Solution
The printers power switch (standby button) is
in the standby position.
Verify that the printer is on. Fans may run while
the printer is in standby mode (off).
The printers memory DIMMs are defective or
installed incorrectly.
Verify that the printers memory DIMMs are
correctly installed and are not defective. See
Installing DIMMson page 217
.
The power cord is not firmly plugged into both
the printer and the power receptacle.
Turn off the printer and then disconnect and
reconnect the power cord. Turn the printer
back on.
The line voltage is incorrect for the printer
power configuration.
Connect the printer to a proper voltage source,
as specified on the Power Rating Label on the
back of the printer.
The power cord is damaged or excessively
worn.
Replace the power cord.
The power source receptacle is not working
correctly.
Connect the printer to a different power
receptacle.