HP 7500 a diagnostic page shows 3 bars of color

Product name: HP Officejet 7500 a large Format model 910 has

Operating system: Mac OSX 10.9.2

When I print a report of the State of ink on the printer it shows 3 horizontal bars with different amounts of yellow, Magenta and blue to black legs and a pair of support with no color in the Middle, which I think should be blacklisted. All 4 cartridges are new, except that they were getting down because test pages, I was required to print to solve my problem: black text gives no image. However, holders of aforemetnioned are black.  The "Print Quality Report" only shows yellow, magenta, and blue, with the exception of the media black, as described above.  Gauge shows ink all cartridges in full, except Red at around 75% to 100%. By aligning the print head results in the error message"failure of alignment. Refer to the documentation of the device for more details"and produces a sheet with only blue ink on the page. All other colors are missing.  The printhead has been replaced in August, and it seems that it needs to be replaced again. Any - one has a better solution?  Thank you!

The document here can help solve the black does not print on your Officejet 7500 a printer.  (For the test page the black media are actually printed by the mixture of the color ink.  The alignment page should have cyan and black).  If the above does not resolve the problem post here can help.

Tags: HP Printers

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