02-25-2009 04:16 PM
I am having an issue that has popped up suddenly. This is a brand new printer (less than 1 month). I ran all the maintenence under the tools on the printer but it is still printing (or not printing??) white lines throughout my print jobs...
Here is a scan of one of the printjobs. You can easily see where the white lines are. I have also updated all the drivers for this device. Has anyone seen this issue? Any idea what causes it? And of course, is there a fix?
I bought this printer at a going out of business sale so I can't exchange/return it.
10-17-2009 02:36 PM
After several failed attempts to clean the print head and replacing the ink cartridge with a new one there seemd to be only erratic improvements . All the colours were OK but the black ink was not getting to the paper.
As a last resort I removed the black print head and gently wiped it with a tissue to remove what appeared to be small flecks of black ink on the black side. When I put the print head back it worked immediately.
Hope this is of help.
12-04-2010 06:08 AM
Exact same problem for me. Printer is an Officejet Pro L7590. I just shelled out more than 60 bucks and replaced the black/yellow print head thinking that would solve my problem. WRONG! This is the main printer for my wife's home office and has worked ok for about two years. The black/yellow printhead was replaced once before, about six months ago. Any ideas what to try would be appreciated, otherwise anybody want to buy a printer that prints most of the lines ok?
09-20-2011 02:15 PM
After a 2hr phone call with tech support, here is the solution; the L7600 Series printer have a firmware update (file name: OfficejetProK7600_R2011PxN.exe) my printer was bought in 2008 thus my print head is a 2008 model, and new print heads are a 2011 modem, they don’t work right in a 2008 model this is PER the tech rep and his name was John unless you upgrade the firmware.
So I upgraded the firmware from a 2004NxN to the 2011PxN and now my printer says damaged or missing print head, I place the original print head from 2008 back in the machine and it’s fine, so I bought a 3rd print head for 2011 and it says the print head is damaged.
After another 30min or so I was told I have a bad printer and sorry the warranty is out, but the old print head works but any new print heads do not, this sounds like a HP Error firmware / hardware compatibility issue, not my issue, but HP will not repair.
HP has no fix nor will they repair the printer.
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