The “Ink Absorber Full” / service required message on Canon MB5420 is common after many cleaning cycles. In most cases, a counter reset restores printing.

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 MB5420. 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

Clear the Ink Absorber / Waste Ink Counter

Once the counter is cleared, Canon MB5420 should exit the locked state and printing should resume normally.

Maintenance Reminder

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.

Troubleshooting

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

Frequently Asked Questions