HP 712C: Blinking ink cartridge light

[Bob Dole]

Hello,

Recently I was given an HP 870Cse to have since the owners couldn't fix
it. After fixing it, I printed it's test page to find that blue and
black were both missing. I decided to buy a refill kit.

I took the cartridges from the 870 (#45 and #41) and refilled them. I
also took the cartridges (#45 new/full and a dry #23 color [C1823G -
Original w/ computer]) from the 712 out and tried them in the 870. When
putting back the original 712 cartridges with a refilled #23 back in, I
got the blinking ink light. I have tried:

* Reseating and cleaning the contacts on both the cartridge and the
housing. Yes, I used rubbing alcohol, but only on the back of the
cartridge where the contacts are.
* Doing a hard reset by unplugging the unit for 30 seconds and then
putting the cartridges back in.
* Taking the #45 out of the 712, putting it in the 870 to make sure it
was actually working (which it is).
* Removing either the color or the black (although I believe both need to
be in).
* Resetting the printer by powering on/off five times in hopes of wiping
the supposed HP EPROM.

The 712C was working without a problem with the same exact cartridges
earlier this day. The only thing that's changed is the fact that I
refilled the color. Any suggestions?

Thank you,

Bob

 

[Bob Headrick]

Hello,

Recently I was given an HP 870Cse to have since the owners couldn't fix
it. After fixing it, I printed it's test page to find that blue and
black were both missing. I decided to buy a refill kit.

I took the cartridges from the 870 (#45 and #41) and refilled them. I
also took the cartridges (#45 new/full and a dry #23 color [C1823G -
Original w/ computer]) from the 712 out and tried them in the 870. When
putting back the original 712 cartridges with a refilled #23 back in, I
got the blinking ink light. [snip]
The 712C was working without a problem with the same exact cartridges
earlier this day. The only thing that's changed is the fact that I
refilled the color. Any suggestions?

Most likely you damaged the cartridge when you put the #23 cartridge in the
870. The 870 uses a #41 color cartridge. The #23 cartridge is designed to run
at a lower energy and will be damaged if run at the levels designed for the #41
cartridge. You will need to replace the #23 cartridge.

Regards,
Bob Headrick, not speaking for my employer HP

 

[Bob Dole]

Most likely you damaged the cartridge when you put the #23 cartridge
in the 870. The 870 uses a #41 color cartridge. The #23 cartridge is
designed to run at a lower energy and will be damaged if run at the
levels designed for the #41 cartridge. You will need to replace the
#23 cartridge.

Regards,
Bob Headrick, not speaking for my employer HP

Thanks for the quick reply Bob. Would you point me to a website where I
can learn more about this particular data? I find it interesting. Maybe
I can learn more about the "chipping" process HP's competitor's use. =)

Thanks again,

Bob

 

[Bob Headrick]

Thanks for the quick reply Bob. Would you point me to a website where I
can learn more about this particular data? I find it interesting. Maybe
I can learn more about the "chipping" process HP's competitor's use. =)

I do not know of a website with any of the details of putting the wrong
cartridge into the wrong printer. The result is not anything like the "chipped"
cartridge some may use. "Chipped" cartridges use a programmable nonvolatile
memory that is written by the printer as the cartridge is used, and some have
found ways to reset it either through software or hardware. A google search
for "chipped inkjet cartridges" (without the quotes) gives 7540 hits.

Regards,
Bob Headrick

 

[Bob Dole]

I do not know of a website with any of the details of putting the
wrong cartridge into the wrong printer. The result is not anything
like the "chipped" cartridge some may use. "Chipped" cartridges use a
programmable nonvolatile memory that is written by the printer as the
cartridge is used, and some have found ways to reset it either through
software or hardware. A google search for "chipped inkjet cartridges"
(without the quotes) gives 7540 hits.

Regards,
Bob Headrick

I did search google beforehand, but thanks anyway Bob. Thought you might
have had an insider source.

Gratefully,

Bob