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Eexpiry dates on HP Deskjet 920c colour cartridges.
This is about expiry dates on HP Deskjet 920c colour cartridges.
I'm looking for answers on these specific points : 1.Is the "Install By" date hardcoded into a chip on the cartridge ? 2. Does the PC keep a log of cartridges that I install ? 3. If so, is it in the registry, in a file ...? 4. If so, can the info be modified, deleted ? Worked around ? I'm not into chemistry but I'm pretty doubtful that ink in a cartridge (in an airtight bag, in a dark, cool, dry place) can switch from OK to useless over a 9 month period. I can imagine that it might deteriorate in such a way as to be slightly less than perfect, but for one colour, cyan, in the cartridge to just die after a certain date would appear to be deliberate rather than due to natural causes. So, would annyone have any hard facts on that ? TIA Alf |
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