If your Canon MG7770 suddenly refuses to print and shows a maintenance or service warning, the ink absorber counter may have reached its limit.

During head cleaning, surplus ink is routed to internal absorber pads. Canon MG7770 monitors this via a counter and can lock printing at a threshold.

This page is prepared for Canon MG7770. 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 MG7770

If your Canon MG7770 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 6 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.

Finalize the Reset and Restore Printing

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

Before You Continue

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

Download & get started

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

If It Doesn’t Work

• Use the correct Stop/Reset press count for your series.
• 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).
• Power-cycle the printer and try again.