Question about HP DeskJet F380 All-In-One Printer

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Printer Problems-Hp Deskjet F380

I am having some problems with my printer. It is printing a white horizontal line across the page. All prints are coming out with weird spaces and I was wandering if the printer head could be the problem. However, I have no instructions to clean the heads. Please advise how to help rectify this problem.

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  • Jus Call May 12, 2008

    Can it be a problem with the Printer Head or Ink Cartridge?


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It isn't really 'printing' a white line but rather NOT printing at all. These are generally called 'voids' in the copier trade.

About the only thing that can cause this is the momentary loss of contact of a 'common' electrical pathway.

Removing the the cartridge, you will find a pattern of contacts, normally on the back of the cartridge.
Try using a cotton swab moistened (not dripping) with rubbing alcohol to scrub the contacts and reinstall after it is dry again. You can safely wipe any remaining moisture away with another swab.
If the loss of contact is caused by any contaminents, this is enough to remove them.
Avoid touching the nozzle area to prevent other problems.

This may not apply to you but this kind of problem can be caused by tobacco smoke which produces a sticky film often causing electrical problems in paths handling low currents.

Posted on May 12, 2008

  • Steve Allison
    Steve Allison May 12, 2008

    Not likely, BUT, the fact that the unit uses separate cartridges for black and color, makes my suggested probably useless too.

    It is possible, but not likely, that the 'common' (this is kind of like the negative for a car battery, serving as a return path for everything) for each cartridge is separate.

    I would still try the simple cleaning I suggested in case they (the cartridges) do share a return path.

    Other than my suggestion, there may be plug-in cables inside the printer that are losing contact temporarily and if the F380 is like most HP units, the case may be mostly snapped together and require the removal of few screws, but some very careful prying to avoid shattering the plastic of the housing.


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