Method two: Clean the print cartridges using HP Solution Center
To clean the print cartridges using the HP Solution Center, use the following steps.
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» HP Officejet J4500/J4600 All-in-One Series -- Aligning Cartridges
Hi
If You need to clean the printhead
check here how
http://www.youtube.com/watch?v=ZAwYIbjswV0
Using the Head Cleaning utility
Using the control panel buttons
If you find that the printout is unexpectedly faint or some dots are missing, you may be able to solve these problems by cleaning the print head, which ensures that the nozzles are delivering ink properly.
You can clean the print head from your computer using the Head Cleaning utility in the printer software or from this product itself by using the control panel buttons.
Note:
Using the Head Cleaning utility
Refer to the appropriate section below to use the Head Cleaning utility.
Follow the steps below to clean the print head using the Head Cleaning utility.
Make sure that A4 or Letter size paper is loaded in the sheet feeder.
Make sure that this product is on and the ! Error light is off.
Access the printer software.Accessing the Printer Software for Windows
Click the Maintenance tab, then click the Head Cleaning button.
Follow the on-screen instructions.
Head cleaning... appears on the LCD panel while this product performs the cleaning cycle.
Caution:Never turn off this product while Head cleaning... appears on the LCD panel. Doing so may damage this product.
When Head cleaning... disappears from the LCD panel, click Print Nozzle Check Pattern in the Head Cleaning dialog box to confirm that the print head is clean.
Good: print head does not need to be cleaned yet.
Not Good: print head needs to be cleaned.
If the nozzle check page does not print satisfactorily, you may need to repeat the head cleaning and print the nozzle check pattern again. See Cleaning the Print Head.
Note:
Use the printer's utility program to self-clean the printer.
This process may need to be repeated as many as 5 to 10 times. Often this will
resolve the problem.
Turn the printer off, preferably overnight, if the self-cleaning
utility has not worked. The ink may need to soften before the self-cleaning
utility will be successful. Turn the printer on and try the self-cleaning
utility again several times.
Determine
from the owner's manual where the print head is located. Epson printers, for
example, are usually in the printer. Many other brands place the print head in
the cartridge.
Remove
the cartridge. For models where the print head is in the printer, drop seven to
10 drops of isopropyl alcohol (rubbing alcohol) down the ink receptacle area.
This is the hole where the ink flows into the head from the cartridge. Run a
few self-cleaning utilities. If necessary, allow to sit a few hours or
overnight and repeat the self-cleaning utility.
Soak the
cartridge print head in hot water if the print head is in the cartridge. Allow
to soak overnight. Dry the print head area with a paper towel. Repeat the
self-cleaning utility.
Place the
cartridge print head in isopropyl alcohol if the hot water soak did not unclog
the print head. Leave the print head covered in alcohol overnight. Use a damp
paper towel to wipe off the print head area. Dry carefully. Try the
self-cleaning utility again.
Purchase
a new cartridge if the alcohol soak did not unclog the print head in the
cartridge. This will provide new print heads that won't be clogged. Contact a
service technician for repair of print heads in the printer if the alcohol did
not unclog the print head.
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