Defective+Ink+Cartridges

=The remaining capacity of one of my ink cartridges suddenly dropped from 60% to 0%.=

This is almost certainly a defective ink cartridge. There are multiple reports of starter ink cartridges (=90 ml) with this defect. Canon USA now replaces these defective ink cartridges without question. There have been a few reports of refusal to replace the defective cartridges in other countries.


 * Possible Workaround:** Some have reported that removing the cartridge and re-seating it fixed the problem (at least temporarily). This has not worked for others. There is also one report of another temporary fix: "Figuring I had nothing to lose I removed the cart and hit the chip section with canned air. A lot of canned air. For some reason the printer recognized the cart after the air blast. It's done this at least four times now and hitting it with the canned air has worked each time."