MP638 Printer Reset – Ink Absorber Counter Explained

Canon MP638 Ink Absorber Full Reset

If your Canon MP638 suddenly refuses to print and shows a maintenance or service warning, the ink absorber counter may have reached its limit.

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 MP638. Service mode instructions are shown only when a matching series procedure is known.

Typical Signs

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

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

Maintenance Reminder

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

Download & get started

Buy Reset Key ⬇️ Download Wic Reset Connect Instructions

For best results, avoid rushing button presses—consistent timing matters.

Troubleshooting

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

FAQ

Does every Canon model need service mode?

No. The generator shows service mode steps only when the series procedure is known.

How many times should I press Stop/Reset?

It depends on the series. Many use 5 presses; PRO/imagePROGRAF/MG use 6 in this generator.

Does reset clean the absorber pads?

No. It resets the counter (software). Pads may still require physical maintenance in high-usage cases.

How long does it take?

Usually a few minutes once the correct steps are followed.

Guide prepared for Canon MP638 – Ink Absorber / Waste Ink Counter Reset using Wic Reset Connect.