Search found 69 matches

by MAsic12345
Fri May 17, 2019 8:09 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

question for experts
How can I make simultaneous control of pins in teense and give a different signal on pins simultaneously?
or where can i read about this
by MAsic12345
Sun Apr 28, 2019 7:54 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

Here came across an interesting little thing when scanning I noticed that the signal that is fed to the head during the first pass of the carriage is clear and can be disassembled, On another pass of the printhead carriage the signal is already strange and not intelligible Maybe someone knows what i...
by MAsic12345
Tue Feb 19, 2019 5:59 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

the hole is not connected to the printer printer creates ink pressure I understood what this air bubble is for. the bubble is a valve and it regulates the pressure in the print head Constant pressure is applied to the print head.if there is not enough ink in the head tank a vacuum is formed then int...
by MAsic12345
Tue Feb 19, 2019 3:58 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

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by MAsic12345
Tue Feb 19, 2019 3:56 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

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by MAsic12345
Tue Feb 19, 2019 3:50 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

I understood what this air bubble is for. the bubble is a valve and it regulates the pressure in the print head Constant pressure is applied to the print head.if there is not enough ink in the head tank a vacuum is formed then into the bubble through the upper valve air is drawn and it swells up and...
by MAsic12345
Tue Feb 19, 2019 9:47 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

ink in the reservoir as it should be
by MAsic12345
Tue Feb 19, 2019 7:07 am
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

air only in bags
and air can be supplied through this opening
I did this on video
by MAsic12345
Mon Feb 18, 2019 8:41 pm
Forum: 3DP printing
Topic: Hacking cartridge HP 84/85
Replies: 115
Views: 18946

Re: Hacking cartridge HP 84/85

I'm starting to disassemble and explore this printhead
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