Question about Xerox WorkCentre Pro 412 All-In-One Laser Printer
Start button does not work
Do all the other buttons function properly? If the numbers do not work etc then one of the other keys is stuck down, check them .
If only the start button is not working, then you have to remove the panel and check to see if it is broken or otherwise defective.
To remove the control panel, you have to remove the scanner. Here is how you accomplish that.
Open the front door as if you were changing toner or the drum. There are 2 silver phillips screws there, Remove those 2 screws.
Turn the maching around and remove the 6 screws holding on the back cover. Since this is a 412, you have to remove the back metal plate covering the main board, that is if I remember correctly 8 screws holding that metal cover on. remove the cover and set aside. Now look under the back edge of the scanner, there are 3 philips screws holding the back of the scanner it. Remove those screws. Then there is one ribbon cable connected to the upper part of the main board. Another plug just to the right of the white ribbon cable. Remove that, and also the green ground wire is screwed to the upper metal bracket. Remove the screw and the wire. to then remove the scanner from the back side of the machine, pull the scanner back and up to remove it. Then turn the scanner upside down and there are 3 screws holding the panel in, remove those screws and unsnap the pannel from the scanner, then remove the screws holding the circuit boards to the start assembly and check the switch.
Posted on Oct 03, 2008
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