Search found 21 matches

by math
Mon Jan 14, 2019 3:20 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

This is a required reading in hp cartridge controll:

http://spritesmods.com/?art=magicbrush

This guy is a genius in reverse engineering!!!
by math
Fri Nov 16, 2018 11:33 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

No. I'm working on a hp 664, similar to that on video. But by now I have nothing to share :|
MAsic12345 wrote:
Thu Nov 15, 2018 7:29 pm
math wrote:
Thu Nov 15, 2018 6:22 pm
@dragonator
I love this video! Thak you very much!!! Coincidentally I'm working in this cartridge.
you work with a cartridge HP 84?
by math
Thu Nov 15, 2018 6:22 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

@dragonator
I love this video! Thak you very much!!! Coincidentally I'm working in this cartridge.
by math
Fri Oct 12, 2018 7:39 pm
Forum: 3DP printing
Topic: Oasis 3DP printer
Replies: 41
Views: 34249

Re: Oasis 3DP printer

Great job!!!!
by math
Mon Oct 08, 2018 11:09 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

@Wonko

Thanks!
by math
Mon Oct 08, 2018 12:29 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

II guess that this patent is the answer to protocol and other details related to the printheads like hp 84, hp 88, hp 11, that seem to use same circuit:

https://patents.google.com/patent/US6705694
by math
Thu Oct 04, 2018 10:37 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

@dragonator

What do you think about 15?
by math
Mon Oct 01, 2018 4:57 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 132
Views: 26917

Re: Hacking cartridge HP 84/85

Seem to me that signals are very compatible with hp45'structure: 22 address x 14 primitives. In 5 we have groups of 7 signals. 2 of this groups equal 14 primitives. Each signal in 15 embrace 11 groups of 5 = 11x7 = 77. Two groups of signals in 15 embraces 154 of signals in 5. Four groups of 15 resul...
by math
Sun May 27, 2018 10:37 pm
Forum: 3DP printing
Topic: Info for Epson Precision core printhead
Replies: 10
Views: 8705

Re: Info for Epson Precision core printhead

Great material to study!!! Thanks!!!
by math
Sat May 12, 2018 5:15 pm
Forum: 3DP printing
Topic: Info for Epson Precision core printhead
Replies: 10
Views: 8705

Re: Info for Epson Precision core printhead

I just took this information from service manual about how epson describe the control lines. Pay special atention to the NCHG, that was described something diferent of the suposed before.