Question about HP Officejet Pro L7590 All-in-One InkJet Printer
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Posted on Jan 02, 2017
SOURCE: when printing on my HP
The HP88 printhead can dry out and cause clogging in the black part of the K/Y (black/yellow) printhead.
This has been a major problem for a few client schools of mine and for me in my attic space where air conditioning and/or hot dry air causes clogging.
You may want to consider purchasing a new printhead and an alternative black ink supplier (non HP) that uses Dyebase ink instead of pigment as this doesn't clog in the same conditions.
However, please note that if you do this it means you may lose your warranty (certainly on the printhead) and the printout won't be as clear for text as the black ink can "bleed" slightly into other colours. It has however solve the problem of clogging in one school that went through 5 printheads in two terms/semesters until we switched.
Posted on Jan 23, 2009
it sounds as if you may have the picture quality set to draft, its worth a check, especially if printing is ok. Does it print colour writing well too or just black, one of the colour inks may have a block or be low, go into printer settings menu and check what print quality its set for.
Posted on Apr 26, 2009
Wipe the cartridge.Use cotton but dont put water on it only cotton.if you have deiones water its good to use.
Posted on May 20, 2009
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