If your Canon MP620 suddenly refuses to print and shows a maintenance or service warning, the ink absorber counter may have reached its limit.

Inside Canon printers, absorber pads collect excess ink from cleaning and maintenance cycles. The printer uses an internal counter to estimate pad saturation.

This page is prepared for Canon MP620. Service mode instructions are shown only when a matching series procedure is known.

Typical Signs

• 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

Completing the reset clears the internal ink absorber counter stored in printer memory and restores normal operation.

Warnings

Resetting the counter does not physically clean the absorber pads. For heavy usage, pads may eventually need cleaning or replacement.

Need a reset solution?

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

Troubleshooting

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