Diagnostic aids 3-53
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b. Swing the shield open about an inch, and then slide the shield to the left to remove it.
4. Carefully unplug the printhead video cables (B) and the printhead motor cable (C) from the system board,
and carefully connect the printhead video and motor cables from the new printhead to the system board.
Note: Use the packaging that came with the printhead FRU to prop up the printhead.
5. Connect the power cord to the outlet and to the printer. Reconnect any cords.
6. Turn on the printer, and check for the error message:
• If the error still appears, replace the system board. See “System board removal” on page 4-149.
• If the error no longer appears, replace the printhead. See “Printhead removal, installation, and
alignment” on page 4-121.
CAUTION—Possible eye damage.
Do not look at the printhead laser while it is turned on. Always point the printhead laser down into
the packaging as shown. The laser can cause damage to your eyesight or the eyesight of others.
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