Canon iP4900 can lock printing when the waste ink (ink absorber) counter hits a predefined threshold. This guide explains how to reset it.

Inside Canon printers, absorber pads collect excess ink from cleaning and maintenance cycles. The printer uses an internal counter to estimate pad saturation.

This page is prepared for Canon iP4900. 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

Reset the Ink Absorber Counter

Once the counter is cleared, Canon iP4900 should exit the locked state and printing should resume normally.

Warnings

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

Reset tools and instructions

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

Troubleshooting

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

Frequently Asked Questions