Question about Microtek ScanMaker 9800XL Flatbed Scanner
Scanning line art, comes up all black with no image. Also, half way through the scan machine vibrates a little like something is getting stuck.
9800XL - fix for failing lamps
1) Unplug the scanner - not just from the computer, but also from the AC!
2) If your unit has a Transparent Media Adapter on top, disconnect it from the back of the scanner, lift it off and set it aside.
3) Remove the four white slotted screws at rear of unit.
4) Remove the four Philips screws in the area surrounding the glass scanning bed.
5) Carefully lift the top off, and set it aside.
6) Inside the scanner, there will be a black metal contraption that rides the two steel rails in the unit. On the side of the contraption are some black screws. This device contains the lamps as well as the image sensor. Unscrew the 4 screws that hold the top cover on. Lift off the top cover. You may gently move the thingy along the rails for easier screw access, it will automatically reseat itself when powered on.
7) Inside this area, you will see a small circuit board. Disconnect the two connectors on it, remove the two screws that hold the board in place, and lift it out.
8) On this circuit board there should be one or two damaged capacitors. Unsolder them and replace them with 2 33pF 3kV capacitors (cost: under $1.00)
9) Put the whole thing back together, and it should function properly.
Posted on Apr 20, 2012
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