Help! 8500 a print report has white horizontal lines through the blocks of Magenta and Orange.

I SOLVED MY PROBLEM BECAUSE OF THE HELP I RECEIVED BELOW.  MY ORIGINAL MESSAGE FOLLOWS.  BE SURE TO SCROLL DOWN FOR THE SOLUTION!

Please see the focus 2 below: I read all the posts here and of course I cleaned the printhead of many many times.  It is almost the worst lines now.  The printer cartridges are all full, and I also turned the printer on and off the power, etc... . Thus only line ACEs and calibtrated a bunch of times.

Is there anything else I can / try?  Is there something else to clean inside and the dust that creates streaks?     Doesn't seem wise to call and pay for this service.

None of my impressions with the graphics seem to be good all of a sudden and he is hurt and slow down my business – do I have to buy another printer?

Help!

Is the a page of print head cleaning blocks magenta and red lines? This means somehow magenta ink is not put on paper on these lines. Because this is not the whole of the region, it's not magenta ink came out. Must be on the printhead nozzles is obstructed or somehow blocked. It is display in the fine lines on the quality report page you have posted. Broke the thin vertical line shows the nozzles at these locations are not belittling inks.

If the clean print head does not resolve the problem, you may need to replace the print head.

The 8500 has 2 print heads, one for the black and magenta/cyan. This page show you more about clean/replace the printheads on 8500 a: http://support.hp.com/us-en/document/c01615896

In this page, there is a photo showing the printhead with the wording: "nozzles - do not clean", it is because that manually clean nozzles could easily damage the print head and make things worse. But if anything the problem and replace the print head, you can try to clean the area of the nozzle with a fluffy, wet with warm water. But when a printhead issue, when the "clean printhead" functioin does not help, I strongly recommend to replace the print head.

Tags: HP Printers

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