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2-66 Service Manual
4085-001
4 Engine Board
Carrier Card
If the missing nozzles are patterned, the problem
could be the engine board or carrier card. First try
replacing the engine board, then the carrier card.
5 Paper Feed Ink smudging and smearing can be caused by
paper problems or problems in the paper feed
area.
Check the following:
• Correct type of paper is being used.
• Paper for curl or wrinkles.
• Feed rollers for wear, dirt, or looseness.
• Gears for wear or binds.
• Paper path for obstructions.
• Distance between print media and printheads.
6 Transport Blurred print and voids can be caused by
problems in the transport area. Check the
following:
• Transport belt for wear and full engagement into
the carrier grip.
• Carrier guide rod for wear or dirt.
• Carrier to carrier frame engagement should be
lubricated with grease P/N 99A0394.
Lubricate the carrier guide rod and carrier frame
on both sides where the two surfaces ride on
the frame.
• Idler pulley parts for wear, damage, or
looseness.
• Encoder strip for wear or dirt.
7 Alignment Characters having uneven or jagged edges, or
uneven vertical, horizontal, bidirectional (black or
color) alignment can be checked by entering
Diagnostics Mode and selecting
Align Printheads. See “Aligning the Printheads” on
page 3-5 .
8 Ink Cartridges Check the ink cartridges.
FRU Action