Vuck HP, that's my impression when my PSC printer started giving problem, actually it started denying it's own cartridges. Low and behold, I started online chat with a support tech. Unusally good tech support give this little info, which can be included in manual in the first place.
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A semi-full reset will do the following:
The user settings to the factory defaults, Language and country settings on some models Reset the All-in-One to the factory default settings by using these instructions:
1. Disconnect and then reconnect the power cord.
2. When the lights begin to flash, press and hold On/Resume and Number of Copies. When only the On/Resume light is flashing, release the buttons. When the On/Resume light is steady, the reset is complete.
