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Re: when i print part of the black print is fafed,this...
To clean your inkjet nozzles, open your printer's Properties screen and look for a tab labeled Maintenance, Services, or something similar. If you can't find it, look under Printer Preferences on the General tab. It may take a few times of cycling through the cleaning process to get them unclogged. Check the progress after each cycle by printing a test page.
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Before doing this, Please make sure that the black ink is in good level then try cleaning the print head of your printer.
to do that:
- You need to launch the HP SOLUTION CENTER from your computer, - at the bottom part, please click on settings. - then, select the printer toolbox and select printer services. - now, on the list, look for clean printhead and then follow the instructions.
- it will print a diagnostic page. If the print out is not acceptable please do the second level of cleaning and so on. - And if you do have the acceptable diagnostic page printout, please stop the cleaning process and try to print a document from your computer.
Black printer ink in HP Printer may fail to be recognized by the printer. Most times an error message will be sent indicating that something is wrong with the black print cartridge. Sometimes the printer may accept to print with the black ink, but the printouts may have horizontal lines and very illegible letters. In such a case a manual cleaning of the print head should be carried out. In doing the manual cleaning, one should spray Windex heavily on paper towel and wipe off the surface of the print head. http://en.kioskea.net/forum/affich-40171-printer-not-printing-black
if your black ink does not print, there is a possibility that the nozzle of your printer are clogged by dried inks, to print a nozzle check. turn off the printer then press and hold the paper (middle) and power buttons together for 3 seconds then release. it should feed the paper and print a nozzle check pattern. if the black lines are full of gaps or breaks in the line. you need to do head cleaning to remove the clogs, press and hold the ink button (teardrop) for 3 seconds, wait until the power (green )light stopped flashing. turn the printer off then print a nozzle check again. just repeat the head cleaning process until the black pattern is ok, as well as the other colors. all shld. be complete.
Clean your printer head and nozzle with printer utility software. Hope it would solve your problem, if not, open the black cartridge and fit it again and try to print again. Though, not work, perhaps problem in you black cartridge, so purchase an original cartridge. Thanks.
Print a self test diagnostic page to check the status of the black ink and print heads. To print the self-test diagnostic page • Control panel: Press (Configuration Page button), or press and hold the (Cancel button) for 3 seconds. For models that support networks: Press (Configuration Page button). If these are all showing OK then clean the printheads To clean the printheads If printed characters are incomplete, or dots or lines are missing from printouts, ink nozzles might be clogged and you might need to clean the printheads. NOTE: Cleaning uses ink, so clean the printheads only when necessary. The cleaning process takes up to 3.5 minutes. Some noise might be generated in the process. • Control panel: Press and hold (Power button), press (Cancel button) two times, press (Resume button) one time, and release (Power button). If this fails then replace the black cartridge and run a clean cycle again and then a self test diagnostic then try printing again.
Turn off the device after removing the printhead
After removing the printhead, turn off the device, wait about 20 seconds, and turn it on again without the printhead installed. After it has restarted, reinsert the printhead.
it will go through this long routine of perhaps 20 min or so. after its compleate it should print great.
I had same problem today. Removed print head and bathed it in alcohol for half an hour. Then I removed the two screws underneath and used a syringe to squirt alcohol into the ports and clean. I noticed clumps of ink coming out (i guess some ports were blocked). I then dried the head and reinserted and reinstalled ink tanks. All looks good so far- black printing again and printed test patterns all look correct. Good luck.