Search found 83 matches

by MAsic12345
Thu Sep 06, 2018 8:01 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

I would recommend that you look at all the signals with an analog scope as well

why do you think that this can be analog?
by MAsic12345
Thu Sep 06, 2018 7:58 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

closer
by MAsic12345
Thu Sep 06, 2018 7:57 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

I made a more detailed digital sample and it covered the whole time of the whole printing I'm sure that 9 and 13 are responsible for the left and right row of nozzles One can see on the oscillograph the ninth terminates faster than the thirteenth this is the same oscillogram with each photo scale in...
by MAsic12345
Thu Sep 06, 2018 7:45 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

Here is more detailed measured and checked
previous ignore there many mistakes made
I checked the file again and corrected errors
by MAsic12345
Mon Sep 03, 2018 5:12 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

Is it possible that 9 and 13 are responsible for the right and left nozzles, and not to the top and bottom? you said (I suspect that the gap in 3 columns is more than 4 mm) what did you mean what do the trigger contacts do or where I can read about it? but the photos of the logical analyzer of the n...
by MAsic12345
Mon Sep 03, 2018 4:45 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

perhaps the speed of the shield of the analyzer was small and therefore the clock did not catch
by MAsic12345
Sat Sep 01, 2018 7:23 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

Here's how the cartridge divides the nozzles into print
I pulled out the cable from the outlet
the printer prints a black square
by MAsic12345
Sat Sep 01, 2018 7:17 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

I tried to change the analyzer program because the previous bug and got more accurate data, oscillogram 5 seconds in the middle of printing, it is clearly visible when the carriage passes and produces ink I think that on these wires 8 \ 10 \ 11 \ 17-18, where there is no signal, it is a constant vol...
by MAsic12345
Thu Aug 30, 2018 6:11 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

Here is the result when typing a circle.
is tape of one contact at a time and see what happens. Perhaps you can derive from that what pins do by looking at what stops working.
if I am damaging one contact then how can I find out what is specifically damaged?
by MAsic12345
Thu Aug 30, 2018 6:16 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 146
Views: 29647

Re: Hacking cartridge HP 84/85

I also think that the heads are alike, for my 3d printer I will use the printer DesignJet 90r, in this printer there are 6 colors and 6 separate heads, from which I will use only 5 goals, the 4 main color is , and the fifth - the binding fluid for gypsum I think that the control of the print head sy...