Preview - I've worked out the important bits of the epson 2100/2200p ink chip protocol
eddiem
I've spent a few days looking at the signals the ink chips use - warning geeky
stuff follows.
It is a synchronous serial protocol I've never seen before.
see http://www.eddiem.com/photo/CIS/inkchip/chip.html for details.
The bottom line is the ink level seems to be encoded in bits 4 to 9 (the first
bit being bit0)
I can and have fooled the printer into thinking it has a full cartridge when it
doesn't.
I need to do this so I can convert to CIS.
I'm sure I can build a chip resetter but don't have any need for one. The hard
part is making a suitable socket.
DON'T try copying me unless you know what you are doing, are prepared to void
your warranty and risk killing your printer.
Someday somebody will sell a resetter, somebody will sell read only chips for
CIS.
But as far as I know nobody yet has explained how they work.
This is a preliminary page - I may have made mistakes. It will evolve.
One disturbing thing is the ink level *appears* to only be six bit resolution -
this needs verification - it can't be more than 8 bits.
I was expecting more like 16 bit resolution.
Each chip pumps out about 252 bits of data - surely a few more could have been
used for ink level.
If it is only six bits (64 levels) there is a lot of rounding error at the end
of each session - do they round down?
If so someone doing small jobs and turning the printer off in between could
loose a lot of useable ink.
Just speculation for now.
Cheers Eddie,
Dmitry Rybas
"eddiem" <NG@mydomain> сообщил/сообщила в новостях следующее:
news:3d916873$0$30828$afc3...@news.optusnet.com.au...
> Hi,
> I've spent a few days looking at the signals the ink chips use - warning
geeky
> stuff follows.
> It is a synchronous serial protocol I've never seen before.
> see http://www.eddiem.com/photo/CIS/inkchip/chip.html for details.
>
>
for
> CIS.
> But as far as I know nobody yet has explained how they work.
>
http://www.inkylink.co.uk/pagethree.shtml
They sell chip resetter and their own cartriges where you can insert
resetted chip.
After resetting the printer driver says there is non-Epson cartridge
installed,
which is O'k according to Inkylink.
I do have it and it works for Epson 890 printer (T007 and T008 cartridges),
but
cartriges themselves were very bad (maybe only pieces I received, but I
never
ordered them again to check), clogged nossels so I used the whole cartridge
to clean with no success. I even thought it was time to tell my printer
good-bye as cleaning cost in service center is about half of the printer
cost,
but when I installed Epson original cartridge, after 2 cleans it is Okey,
printed 5 or 6 cartridges so far...
Regards,
Dmitry.
eddiem
Yes, I know there are reseters for older epsons. There are none for the
2100/2200 yet as far as I know.
I did enquire with several companies selling reseters and I was told they do
not work with the 2100
There are read-only chip for older printers but not the 2100.
Reseters are of little use to people with CIS anyway, we need read-only chips
(or my hack).
Thanx anyway,
BTW - windex works wonders for clogs.
Eddie,
Visit me @eddiemNOSPAM.com or put Eddie in front and you have my email address.
Greg Kamer
> The bottom line is the ink level seems to be encoded in bits 4 to 9 (the
first
> bit being bit0)
> I can and have fooled the printer into thinking it has a full cartridge
when it
> doesn't.
Eddie,
I must be missing something important here. Why would you want
to make your printer think is has a full ink cartridge when it doesn't?
Ralph
ink?
Ralph
"eddiem" <eddie@mydomain> wrote in message
news:3d92accd$0$30832$afc3...@news.optusnet.com.au...
eddiem
If you refill a chipped cartridge it will still read empty. If you run a CIS
you need to fool the printer into thinking it has ink.
That's why people make chip reseters and read-only ink chips.
Have I failed to explain that properly on my web page or didn't you read it?
Eddie,
eddiem
>That's very good as an enabling technology, but can anyone duplicate the new
>ink?
buying it in cartridges - in bulk at the right price then maybe.
I am quite happy with the bulk ink (G4 pigment) I use. The ultrachrome is a
little better in the reds but not that much better. G4 has been independently
rated at over 100 years life - ultrachrome still has to prove itself.
The problem is I can't buy "light black" yet. Mixing my own is another project
I have.
Media-street says they are working on a 2100p inkset. Whether it will produce
ultrachrome's gamut I don't know. When it will hit the market I don't know. I'm
not holding my breath.
Eddie,
Visit me @eddiemNOSPAM.com or put Eddie in front and you have my email address.
Ralph Brown
protocol engineering, then the 2200 will be a real winner. Probably it will
work with the 7600 too.
Ralph
--
Napier, a multifunction calculator for PocketPC - check it out at
www.nca-corp.com
********* PLEASE NOTE FOR REPLIES **************
My email address is: ralph AT nca DASH corp DOT com
Sorry about this, but spammers happen
**************************************************************
"eddiem" <eddie@mydomain> wrote in message
news:3d941dbd$0$30832$afc3...@news.optusnet.com.au...
eddiem
I programmed a micro to act as a chip reader and a chip resetter.
http://www.eddiem.com/photo/CIS/inkchip/chip.html for details.
Eddie,
Michael
Mark my words: it's only a matter of time before the Stylus C80 will
fall similarly.
(40 bucks for a chip resetter. Jeez. I'm in the wrong business!!)
Michael