Cold reset for hp business inkjet 2800
Hard Reset
Remove the cartridges from the printer then unplug the power cable from
the back of the printer and from the walljack wait for 30 seconds then
replug the power cable to the wall out let and then to the printer.
Power Drain
Remove the cartridges from the printer then unplug the power cable from
the back of the printer and from the walljack wait for 30 seconds now
press and hold the power button on the printer and replug the power
cable to the wall out let and then to the printer after the power cable
is connected you can let go off the power button..
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