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Current Category Updated October 2008
Canon CLi-8 and PGi-5 ink tanks come fitted with ink level chips. Even compatible (generic) CLi8 and PGi5 ink tanks must have the ink chips fitted, to be recognized by the ink monitor (Canon ink police) and work in the "chipped" Canon Pixma printer models. All the chips do, is record ink level data generated by the printer driver. There is no connection between the chips and the actual ink level, the ink monitor simply calculates how much ink is being used for printing and how much ink there is left. This is then displayed on-screen as the "ink gauge". Ok, it's handy to know how much ink you have left and nice of the printer to warn you, when you're running low. And if you buy new Canon ink tanks every time, the chips don't really affect you.
If you don't, the printer will display "ink out" error and refuse to print, until you replace the offending "empty" ink tanks. It makes no difference, how much ink there is in the cartridges. If the chip says an ink tank is empty, you are not printing anything. The chips override any other ink level detection used. Want pics..? (...might take while to load). Note the cli-8 adapter (removed) in pic.1.
...is as easy as placing the cartridge in the resetter slot and gently pushing the chip end against the resetter pins (see pic above). LED on the ink tank flashes once, then few seconds later lights up solid. The same R-58 resetter fits and resets the bigger (PGi-5) ink tanks as well as all CLi-8 tanks. There is an adapter included, which enables accurate positioning of the thinner CLi-8 ink tanks. The current resetter does not reset PGi-9 (Pro9500), PGi-520 & CLi-521 (iP3600, iP4600 etc) chips. Even ink tanks with ink monitoring already disabled, will display ink levels again and work just like new after resetting. Note: Damaged ink chips that trigger "ink tank error" can not be reset. There are 3 batteries (replaceable) inside, but the original cells should last for years and hundreds of chip resets. Illustrated instructions (in plain English) are included. Other Canon ink cartridges (eg. PG-37, PG-40, PG-50, CL-41, CL-51...) also store the ink level information, but the chip is incorporated into the printhead circuit. Since there is no way to reset the ink chips, the ink monitoring has to be disabled, if using refilled ink cartridges. The printer should then accept the refilled cartridge, but it will not display the ink levels any more. Software from "Inkmon" (as mentioned above) works with all printers using these cartridges too and is very handy, if refilling them.
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