Title says it, this is for the MC-20 tank for a Canon pro-1000.
All these chip reads are 2KB reads, but they're padded to the end with 00s
I've read the used chip that was marked as "full" by the printer which contains:
deadchip.jpg
Offset: 0x02: 01
Offset: 0x18 : 37 D5 0E 00 AD 70 45
Offset: 0x23: 6D 5F
So i bought a "New" chip off ebay, and read the chip contents so I might be able to reset them in the future:
blankchip.jpg
Offset: 0x02: 01
Offset: 0x18 : FE FD 0C 00 31 32 3C
Offset: 0x23: 2D 75
After putting this one in, the printer said the tank was "90% used" with only 10% life remaining but unlike the first chip, it would allow me to continue printing, but probably not for long. And probably not enough to initialize any new cartridges.
So I read the chip again after the printer "initialized" it and it has this now:
blankafterinit.jpg
Offset: 0x02: 01
Offset: 0x18 : 10 CF 09 00 20 13 43
Offset: 0x23: 28 C3
I can't figure out any pattern or algorithm that it's using, or identify anything being written to the chip that might act as a printer ID (some epson printers write the serial # to the chip after initialization)
Does anyone have a known blank/new chip that they might have read with an i2c reader that they could share? Or perhaps someone knows what the algorithm used in the ebay chip resetter tools?
TIA!
All these chip reads are 2KB reads, but they're padded to the end with 00s
I've read the used chip that was marked as "full" by the printer which contains:
deadchip.jpg
Offset: 0x02: 01
Offset: 0x18 : 37 D5 0E 00 AD 70 45
Offset: 0x23: 6D 5F
So i bought a "New" chip off ebay, and read the chip contents so I might be able to reset them in the future:
blankchip.jpg
Offset: 0x02: 01
Offset: 0x18 : FE FD 0C 00 31 32 3C
Offset: 0x23: 2D 75
After putting this one in, the printer said the tank was "90% used" with only 10% life remaining but unlike the first chip, it would allow me to continue printing, but probably not for long. And probably not enough to initialize any new cartridges.
So I read the chip again after the printer "initialized" it and it has this now:
blankafterinit.jpg
Offset: 0x02: 01
Offset: 0x18 : 10 CF 09 00 20 13 43
Offset: 0x23: 28 C3
I can't figure out any pattern or algorithm that it's using, or identify anything being written to the chip that might act as a printer ID (some epson printers write the serial # to the chip after initialization)
Does anyone have a known blank/new chip that they might have read with an i2c reader that they could share? Or perhaps someone knows what the algorithm used in the ebay chip resetter tools?
TIA!
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