Canon ink level monitor - how to disable

Most Canon Pixma printers including MP500, 510, 520, 530, 540, 600, 620, 630, 640, 800, 810, 830, 960, 970, 980, 990, MG5150, 5250, 6150, 8150, MX700, 850, 860, iP4200, 4300, 4500, 4600, 4700, 4850, 5200, 5300, 6600, 6700, iX5000, PRO9000 etc. are programmed to stop printing, before any ink tank runs out of ink.

Refilling the Canon CLI-8, CLI-521, CLI-526, PGI-5, PGI-520, PGI-525 ink tanks doesn't reset the ink levels in printer software, so the printer may not print - even if all ink tanks are full. All the ink information comes from a small IC chip fitted to each ink tank. There is no connection between actual ink levels and the ink level monitor (ink gauge).

To make the printer work again, you can:

1) fit a new ink tank (or chip)
2) reset the "empty" chip back to full using a chip resetter (if available for your printer model)
3) use auto-reset ink tanks/chips (if available for your printer model)
4) Disable the ink monitor. 

It's easy to disable the ink monitor...

Simply read and follow the messages from your printer (on screen) similar to ones shown below. If you use a multi function (MP) printer, the messages should display on the printer LCD panel.

Important: When ink monitor is disabled, ink level indicator (for that ink tank) disappears and the printer will not stop printing, when out of ink. Inspect ink level in each tank periodically (by removing it) to avoid running out!   

1) When the printer software decides one of the ink cartridges is empty, you should get this message (or similar). If it doesn't appear straight after refilling, don't worry. The printer doesn't see the cartridge(s) as empty - yet. Just keep using the printer as usual...and wait for the message to pop up.