Canon TR4645 Ink Absorber Full Reset

The “Ink Absorber Full” / service required message on Canon TR4645 is common after many cleaning cycles. In most cases, a counter reset restores printing.

During head cleaning, surplus ink is routed to internal absorber pads. Canon TR4645 monitors this via a counter and can lock printing at a threshold.

This page is prepared for Canon TR4645. Service mode instructions are shown only when a matching series procedure is known.

Common Symptoms

• 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 TR4645

If your Canon TR4645 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

After service mode is enabled (if required), the waste ink counter can be reset using a supported reset procedure/software.

Important Notes

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

Need a reset solution?

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

Common Fixes

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

FAQ