Cartridge chip show/ do not show ink level on ARC chip
The choice are:
- show ink level
- do not show ink level
- auto reset chip
Can someone please suggest what is the best type of replacement chip to use on refilled cartridges ?
Product sellers always say that if the ink on the cartridge will be depleted, the chip will became unusable and should be replaced.
If the chip do not show the ink level how it possible that it will became unusable when the ink on the cartridge is depleted ?
And the fact that a chip does not show the ink level is not a technical limitation, but seems a trick to prevent the printer to mark the chip as unusable.
Anyway, I do not understand why with chips that do not show the ink level there is always associated this note: "The chips life will be over if ink cartridge out of ink."
If the cartridge does not know the status of the ink level, but it determines the ink level based on the number of printed pages, how it's possible the chip can become unusable if the ink goes below a certain amount ?
Some examples of replacement chip found, selected based on the number of products sold, and user feedback:
Chip 1: does not show the ink level.
Chip 2: displays the ink level
Although the pcb looks identical one does not show the ink level
CISS: displays the ink level
Refillable cartridges: displays the ink level
The term "permanent" probably indicates a reset chip or a refillable cartridge.
Maybe this means that as the chip does not count down, it will never show empty. A single use chip is useless when it has reached empty.
I don't understand this, the cartridges contain no level gauges that communicate with the chip.
For chip 1: I don't understand this.
For chip 2: Neither do I understand this, but the details suggest a problem with a firmware update. HP of course don't like the use of non-OEM materials in their printers.
For CISS: What ink level does the chip show? The CISS ink tanks are bigger than the cartridges. This looks strange to me.
For the refillable cartridges: It seems that the ink level must never register below 20% or the chip will be locked/excluded. This could again be caused by some clever firmware trick by HP.
The other day I seeing an article about HP blocking 3'rd party chips and cartridges using a firmware upgrade.
A fun read is an Epson patent which describes a chip design which prevents "accidental" writes which raise the available ink counter value. Apparently standard error checking isn't good enough. Guess they couldn't get a patent on preventing user resets. But the chip doesn't prevent "accidental" writes which lower the count- sells more ink.
file:///C:/Users/asus/Desktop/US7599247.pdf
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