A Cold Reset Printer for HP 2100

Performing a cold reset printer for HP 2100, see the procedures here:

1. Switch off the printer
2. Press and hold the “JOB CANCEL” button
3. Then switch on the printer
4. After all the LEDs on, release the “JOB CANCEL” button
5. A cold reset changes most system parameters in NVRAM to the factory defaults
6. The “JOB CANCEL” button must be released within 20 seconds
7. After all of the LEDs on, an NVRAM initialization is performed instead of a cold reset