HP Color LaserJet 8550 Multifunction Printer series - Manual (Page 180)

EN Printer Control Panel and Configuration Problems 179
Printer Control Panel and Configuration Problems
Problem Cause and Solution
Printer control panel
settings work incorrectly The printer control panel display appears blank or is not
lit even when the fan is running. The printer is in
standby mode (off). Turn the printer on (button in).
The printer settings in the application are different from
the printer control panel settings. The settings in your
application override the settings in the printer control
panel.
The settings were not correctly saved after changing
them. Re-select the setting, then press
S ELECT . An
asterisk ( * ) should appear to the right of the setting.
The data indicator was lit and the settings were not
activated after changing them. Re-select the printer
control panel settings. Then, if the data indicator is lit,
press
S ELECT to activate the settings and clear the print
buffer.
The Data indicator is lit. Buffered data exist in the
printer. Pressing
S ELECT activates the printer control
panel settings, but erases the buffered data. Pressing
G O prints the buffered data in the current printer control
panel settings, then activates the new printer control
panel settings.
If you are on a network, another user might have
changed the printer control panel settings. See the
system administrator to coordinate changes to printer
control panel settings.
Cannot select the
information menu The Ready indicator is lit. Press G O to take the printer
offline.
The Data indicator is lit. Press G O to reset the printer.