When Canon TS6420 triggers an ink absorber full condition, the printer may block printing as a protective measure. The solution is typically a waste ink counter reset.

During head cleaning, surplus ink is routed to internal absorber pads. Canon TS6420 monitors this via a counter and can lock printing at a threshold.

This page is prepared for Canon TS6420. 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

How to Enter Service Mode on Canon TS6420

If your Canon TS6420 supports service mode reset, follow the steps below before performing the counter reset.

1. Turn the printer OFF.
2. Press and hold Stop/Reset.
3. While holding Stop/Reset, press and hold Power.
4. Release Stop/Reset (keep holding Power).
5. Press Stop/Reset 5 times.
6. Release Power — the printer should enter service mode.

If it doesn’t work, repeat the sequence carefully. The press count depends on the series.

Perform the Waste Ink Counter Reset

Once the counter is cleared, Canon TS6420 should exit the locked state and printing should resume normally.

Before You Continue

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

• 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).