Question about HP LaserJet 1200 Printer
NVRAM initialization/cold reset
NVRAM initializer sets all default variables stored in NVRAM back to factory default values or to a default ROM value, depending on the variable. It also performs a system reset.
NVRAM initializer resets the following:
! all menu settings to factory default values
! factory settings such as formatter number, page counts, factory
To perform NVRAM initialization
1 Turn the printer off.
2 Press and hold down the GO button.
3 Turn the printer on and continue to hold the GO button for at least 20 seconds. During this process, the GO button, Attention, and Ready LEDs will each turn on.
4 Release the GO button.
5 The printer LEDs will begin cycling. The NVRAM-unit process will run until the printer is in the ready state.
Or download the service manual here ..
Posted on Apr 23, 2013
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Posted on Jan 02, 2017
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