Question about HP DeskJet 9800 InkJet Printer
You will need to remove the power supply unit to check the output to the printer board. If there is power coming to the mother board then the power supply is ok and the printer board is faulty. If there is power shorting on connection to the board then also the printer board is faulty. If there is no DC output at the secondary of the power supply unit ( SPMS) then check if any fuse/fusible resistor in the secondary section is open. Use a meter to check and change.
However if the fault centers on the mother board, then the printer main board must be replaced.
evaluate cost and decide.
Posted on Sep 02, 2010
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Posted on Jan 02, 2017
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