Canon MX340 Ink Absorber Full Reset

If your Canon MX340 suddenly refuses to print and shows a maintenance or service warning, the ink absorber counter may have reached its limit.

Ink absorber pads store waste ink during normal operation. Canon firmware tracks this using a software counter and may stop printing when it reaches the limit.

This page is prepared for Canon MX340. Service mode instructions are shown only when a matching series procedure is known.

How the Error Appears

• Service / maintenance warning on the screen or driver
• Printer refuses to print even with ink available
• Blinking lights and queued jobs fail
• Error reappears after restart

Perform the Waste Ink Counter Reset

After service mode is enabled (if required), the waste ink counter can be reset using a supported reset procedure/software.

Before You Continue

Treat the reset as a maintenance step. If your printer has extremely high usage, consider cleaning/replacing absorber pads to avoid overflow.

Need a reset solution?

For best results, avoid rushing button presses—consistent timing matters.

Troubleshooting

• Power-cycle the printer and try again.
• Close other Canon printer utilities while resetting.
• Try a different USB cable/port if using PC software.
• Use the correct Stop/Reset press count for your series.
• Repeat the service mode steps carefully (timing matters).