I have been using an HP Printer and HP Inkjet Print Cartridges for many years.
Earlier this year, I purchased 2-pack "hp inkjet print cartridges (26 black)" from Bureau en gros (Staples). I noticed that my HP printer, which has no electrical or mechanical problems, did not print well, as shown attached in the printout (October 2004). This normally happens when there is little remaining ink.
However, the inkjet print cartridge is more than half full, as you can see enclosed. It was a 2-pack, so I started using the other cartridge, which exhibited the same problem. I soaked the cartridge in water trying to find out the source of the problem, but I could not. I suspect a manufacturing defect of this batch because the next cartridge that I purchased works just fine.
For your information, the "install before" date is 2005-02, 6 months from now.
I am sending 2 "hp inkjet print cartridges (26 black)" for your investigation. Your replacement of 2-pack "hp inkjet print cartridges (26 black)" would be appreciated.