Canon TS8391 can lock printing when the waste ink (ink absorber) counter hits a predefined threshold. This guide explains how to reset it.

During head cleaning, surplus ink is routed to internal absorber pads. Canon TS8391 monitors this via a counter and can lock printing at a threshold.

This page is prepared for Canon TS8391. Service mode instructions are shown only when a matching series procedure is known.

What You May Notice

• 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

How to Enter Service Mode on Canon TS8391

If your Canon TS8391 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.

Reset the Ink Absorber Counter

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

Warnings

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

Download & get started

Use a reliable USB connection and follow the steps in order.

Troubleshooting

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

FAQ