Error Code 5100 It can have a lot to do with some obstruction in the print path, the gears, or ink on the clear plastic encoder strip. The purge cap (the white sliding mechanism that the print head parks to when it's not in use) was not lubricated well enough from factory. If you lubricate the sliders with some white grease (don't get it on the small wipers or the black caps) the mechanism can now slide more freely, and the unit can park the head properly without giving you the dreaded head homing error 5100 (or E-2-2 on the LCD display) Keep in mind that this repair will probably require you to remove the right panel off of the printer to gain access to the purge mechanism. There are two screws behind the printer, and two in front for each corresponding side panel (the front screws are behind the grey front panel of the printer - open the top cover to see the clips which hold the front cover on) Hope this helps some of you out. Also try: Opening up the case so you can get to the side where the power pack is located and then disconnecting the small plug connecting it to the printer circuit boards, wait 10 seconds, reconnect the plugs again the printer and then re-connect the external power lead.
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