The scanner on this all-in-one no longer works, but I would like to continue using the printer itself. Unfortunately it cannot auto-align the heads without using the scanner, and the print quality keeps getting worse and worse. Is there a manual work-around?
SOURCE: HP L7680 Print Head Problem
Sometimes the circuit strip that sits at the back of the printhead carriage is the problem due to moisture, ink soiling, etc...
To clean these you need some cotton buds (like you use to clean your ears) and gently clean the area at the back of the printhead carriage (where the printheads slot into).
This removes any ink, or moisture that could be causing a short circuit or similar.
SOURCE: HP all-in-one not printing cyan color
Place a soft clean tissue paper over the cartridge print head and leave for about eight minutes. You can secure it with the aid of a rubber band. It should be held firm ok. If the tissue paper is not dampened by ink then the cartridge would have gone bad or the ink dried. You also know that they have expiry date and could go bad while yet in the packaging b/c it has expired. Good luck
SOURCE: black ink not coming through
I had the same problem. Ended up replacing the black/yellow "printhead" and that corrected the problem.
SOURCE: HP 6000 Won't print with yellow cartridge
Try this :
Take out the power cable from the back of the printer keep on tapping the power button for 30 secs ; then plug it back.
Take out the catridges clean them with a Lint free cloth (copper contacts); also clean the catridge slot of the printer; put in back the catridges ;
Unplug the power cable from the back of the printer; press and hol down the (#) and the (6) button simultaneously with one hand and with the other hand put in back the power cable; and then release the (#) and (6) button;
It will perform a reset on the printer
IF still then it doesn't work then the catridge slot's copper contacts has gone bad and need to replace
Regards
Soumajit
SOURCE: after print heads alignment its getting error 1004
The trailing cable is probably runing the printhead. Try replacing the printhead and trailing cable together. Parts available at: http://www.lpscomputer.com/c-622-designjet-5000-5500.aspx
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Thanks, Joe
I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_8b8c2cd6ce148309
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