unknown

asked Sep 26, 2005 at 9:37am
Hp HP DeskJet 950

hp psc950 error message 'incorrect black cartridge

am getting an error message 'incorrect black cartridge'
on psc 950. installed #15 cartridge as have done many times before. tried two new cartidges and even tried putting old cartridge back in. same message every time no matter turning machine off/on, in/out, etc. help.
Gently clean the contacts in the carriage, and on the cartridges with a paper towel or coffee filter moistened with water.

It could be a bad carriage board or cable.
by Stephen on Sep 26, 2005 at 5:47pm Add comment
cartridge bad, you replace new cartridge
by unknown on Nov 22, 2006 at 11:07pm Add comment
I received the messege "Incorrect black ink cartridge installed" on my HP PSC 750. After reading numerous messages, I did try to clean the contacts but it did not help. Somewhere in one of the messages was a comment about the contacts being movable. I checked mine, and they are movable. Also noticed that one of the contacts did not stick out as far as the others. I gently teased that contact with a probe until it came out into proper allignment with the rest of the contacts. The message went away and the printer now works. So - if cleaning does not work - check contact allignment.
by ldholman on Jun 4, 2007 at 9:52am Add comment
One important fact, the PSC 750 uses #15 & #78 cartridges, and the carriage board has spring loaded pins.

The PSC 950 carriage board has contacts on it and the cartridges are pushed up against them, but they are a totally different style contact, (no springs).
by Stephen on Jun 4, 2007 at 4:01pm Add comment

Had the same problem. Had changed black cartridge #15 as indicated but all the time I needed to change the #78 cartridge. All is working great. Message was telling me "error: incorrect cartridge installed".

by cocoon on Feb 12, 2016 at 12:15pm Add comment

Had the same problem. Had changed black cartridge #15 as indicated but all the time I needed to change the #78 cartridge. All is working great. Message was telling me "error: incorrect cartridge installed".

by cocoon on Feb 12, 2016 at 12:15pm Add comment