Canon IB4120 Ink Absorber Full Reset

If your Canon IB4120 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 IB4120. Service mode instructions are shown only when a matching series procedure is known.

How the Error Appears

• ‘Ink Absorber Full’ / ‘Service Required’ message
• Support/service code (varies by series)
• Printing blocked after cleaning cycles
• Reset required to continue printing

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.

Important Notes

If absorber pads are truly saturated, ignoring maintenance can lead to ink leakage inside the printer. The counter reset only removes the software lock.

Download & get started

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

Common Fixes

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

Frequently Asked Questions