I have not had this problem before. My HP 7550 inkjet is printing with faint lines, and there is a discoloration, almost faded out areas when I print. I have cleaded and changed the cartridges. Does anyone know whay this is happening? The printer has been great, and is 6 years old, I am thinking it may just be done?
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Re: Hp 7550 ink jet printer printing uneven
My first guess is that it is a cartridge issue, due to these printers having the print head as part of the cartridge, there is nothing else, it makes the whole cartridge the only printing item. Ensure the carts are not old (exp date) and that they are HP, With that all understood as I now see that you must due to owning it for 6 years, then you could try to clean the contacts on machine's "cartridge holder" and give that a clean too while your at it cause it may be the problem here (see below)
If a inkjet printer lasts 3 years you would be doing well, and you've had 6. Exceptional!
HP Photosmart printers may print images with white lines or single color streaks. This issue can be caused by ink that has dried in the ink nozzles or by debris that is blocking the ink nozzles. The ink cartridges and the and printer cradle should be cleaned. Clean the ink cartridges with the ink cartridge cleaning utility in the HP Printer Toolbox. Also, clean the ink cartridges and the print cradle manually.
Cleaning the ink cartridge cradle
Assume an eye level position with the HP Photosmart printer.
Locate the ink cartridge cradle.
Using clean, moistened swabs, wipe the underside of each wall of the carriage where fibers may collect and come in contact with the paper. Repeat until no ink residue is seen on a clean swab.
Reconnect power cord when finished cleaning.
Manually cleaning the ink cartridges
Turn the printer on and lift the top cover.
After the ink cartridges have moved to the center of the printer, unplug the power cord from the back of the printer.
Remove the ink cartridges and place them wide side down on a piece of paper.
Prepare a clean, foam-rubber swab or a lint-free cloth slightly dampened with water.
Locate the copper-colored circuitry strip on the back of each cartridge.
Clean the copper-colored strip with the dampened swab or cloth. Do not wipe the nozzle end of the cartridge or touch the nozzle plate.
Clean the carriage contacts on the back wall of the ink cartridge carriage with a damp foam-rubber swab or lint-free cloth. Use a dry foam-rubber swab or a lint-free cloth to remove moisture from the contacts.
Cleaning the ink cartridges with the HP Printer Toolbox
Click Start .
Click Settings .
Click Printers .
Right-click the icon of the printer in use.
Click Properties .
Click the Services tab.
Click Open the HP Photosmart Toolbox or Service this device.
Click the Device Services tab. This tab does not display in Windows XP; proceed to the next step.
Click Clean the Print Cartridges .
Follow the onscreen prompts.
If you've got this far then I should tell you that these days, Printers aren't worth fixing, one just replaces them with new
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The single item in an inkjet printer that requires the most attention is the ink cartridge and usually is the cause of uneven, light and inconsistent printing problems. When such problems happen usually the ink cartridge needs to be replaced, but sometimes you may need to inspect the ink cartridges for problems. Ink cartridges can be popped out of the printhead assembly for inspection of the inkjets. if any or all of the jets are clogged, it is possible to clear them by gently wiping the face of the cartridge with a swab. A gentle squeeze of the ink reservoir can also help to unblock the clogged jet.
Hope this helps
This is Maltesecross. Turns out that the faintness of my printed pages was in fact due to a low ink cartridge, even though some pages printed out fine and others half-good. Eventually, all pages turned faint, and upon re-installing the driver, I got a low-ink warning (the first one ever). Putting in a new ink cartridge solved the problem for me.