Printer Repair Questions? Ask IT Technicians for Answers ASAP
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It sounds like the problem is with Cyan or Magenta catridge. If it is old catridge, please replace with new one. If it is new as for replacement, because it seems the ink in the catridge is dried and / or the print head on the catridge is damaged.
Sinking the catridge in semi hot water for 5 to 10 minutes and make it dry by applying air and using it again is a method some local shops following to solve dry ink catridges issue, but I do not recommend it to you, because if there is any water remains it will make serious damage on the printer circuits. So I like to recommend replacing the cartridges with original manufacture one (compatible cartridges by third-party manufacturers have low quality ink, plastic and circuits).
Okay, if so the problem may with the print head. Please run the ‘Clean Printhead’ routine from the TOOLS menu 2 or 3 times in a row. Verify print performance by activating the ‘Print Quality Report’ – small color blocks should be printed.
If the poor print quality issue cannot be corrected, then the PRINTHEAD may need to be removed from the printer and cleaned. Sometimes, the print head may be replaced.
Please refer : http://support.hp.com/us-en/document/c02871867 also.
Yes, you can try cleaning the heads with Alcohol. If it not helps, you need o change the print heads.