Canon Service Tool 4905 Jun 2026

Generates grid patterns and hardware alignment checks without a computer print spooler.

MX320, MX330, MX340, MX350, MX360, MX410, MX420, MX860, MX870. How to Use Canon Service Tool V4905 (Step-by-Step)

: Clears the digital counter for the ink absorber pads, allowing the printer to continue operating after a "full" error.

Press the (or 6 times for certain G-series models) in rhythmic succession. Each press will toggle the LED light between orange and green. Release the Power button . canon service tool 4905

Press the (or 6 times for some G-series models) in quick succession. The indicator light will alternate between green/blue and orange with each press. Finally, release the Power button .

The software will send a command to the EEPROM. A small dialog box stating "A function was completed" or "Counter reset successful" should appear. The printer may also click and print a single page containing lines of text like D=000.0 , proving the counter is now at zero.

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The Canon Service Tool 4905 can be a powerful aid for advanced printer maintenance and repairs but should be used cautiously: confirm compatibility, understand risks to warranty and hardware, and prefer official service for critical or under-warranty devices.

To use the tool, the printer must first be placed into . This typically involves a specific sequence of button presses:

Resetting the "absorber" or "main" ink counters to zero after the physical pads have been cleaned or replaced. Press the (or 6 times for some G-series

MG2120, MX410, IX6700, and various iP series models.

To use the Service Tool successfully, you must strictly follow a two-part process: entering Service Mode manually, then executing the reset software. Prerequisites