If you are using the HP Designjet 4000 Printer series, and you find that these options are not available, please download the latest firmware revision (see Update my printer's firmware). Date and time setting will be available from Spring 2006.
Change the sleep mode setting
If the printer is left switched on but unused for a certain period of time, it will go automatically into sleep mode to save power. To change the time the printer waits before it goes into sleep mode, go to
the front panel and select the 
icon, then Printer configuration > Sleep mode wait time. Highlight the wait time you want, then press the Select key.
Turn off the buzzer
To turn the printer's buzzer on or off, go to the front panel and select the 
icon, then Printer configuration > Front panel options > Enable buzzer.
Change the front panel contrast
To change the contrast of the front panel display, select the 
icon, then Printer configuration > Front panel options > Select display contrast, and choose a value using the Up or Down key. Press the Select key to set the value you have chosen.
Change the units of measurement
To change the units of measurement displayed in the front panel, select the 
icon, then Printer configuration > Select units, and select English or Metric.
The units of measurement can also be changed in the Embedded Web Server.
Adjust for altitude
Your printer will work better if you tell it roughly at what altitude it is. To set the altitude, go to the front panel and select the 
icon, then Printer configuration > Select altitude, and select a range.
(printer ...I do How topics) operation
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