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Title: Terrible Ink Usage
Review: I've become convinced there is a timer or expiration mechanism on the ink cartridge usage on this device. I didn't notice right away because I used the device a lot and it seemed OK. But my usage has waned and here is what happens: I replace all cartridges and print two pages. 3 months later I go to print 2 more pages and it claims the ink is half gone. 2 months later I print one more page and it claims the cartridges are empty and need to be replaced. 7 PAGES AND THE CARTRIDGES ARE EMPTY! I ignore the empty warnings for another dozen pages or so before I break down and buy new cartridges. This is still terrible performance. I've now read on other forums if you ignore the empty warnings long enough the whole device will lock up and become unusable. I will never buy another Canon product.
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