: The printer must be in "Service Mode" before the software can communicate with it. 📥 Where to Download

If you hit any snags during the process, I can help you troubleshoot. To help me give you the best advice, let me know: What exact do you have? What Windows version is your computer running?

Changes the geographic market settings of the mainboard. Supported Canon Printer Models

If you use the wrong version of the Service Tool or attempt to reset the printer without it being in Service Mode, you may receive (unsupported model) or Error Code 005/006 . In some cases, repeatedly entering the wrong code can "lock" the service mode permanently, requiring a hardware part replacement. How to enter Service Mode (General) Turn the printer OFF .

iP2700, iP3600, iP4800, iP4810, iP4840, iP4910, iP4940, iP4970, iP4980, iP4990, iP5810, iP5880, iP7240.

While holding Power, release Resume and then press it (or 6 times for some MG series).

Some users buy cheaper printers from other regions and need to change the destination ID to match local ink cartridges.

Release the (but keep holding the Power button).

: Can sometimes adjust the printer's regional configurations. Форум по СНПЧ Compatibility

V3900 Canon Service Tool for all iPxxxx series, iX ... - 2Manuals

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While version v3900 is tailored for printers released around 2013, it supports a wide range of older series: PIXMA MG Series

The service tool resets the software counter , not the physical ink pads. If your pads are physically oversaturated, ink may leak from the printer later.