How to reset waste ink counter on a Canon Pixma Pro9500

Here is the procedure to reset waste ink absorber counter:

• Turn the printer power off.
• While pressing the "Resume/Cancel" button, press and hold the "Power" button. (The Power LED lights in green to indicate that a function is selectable.)
• While holding the "Power" button, release the "Resume/Cancel" button. 
• While holding the "Power" button, press the "Resume/Cancel" button 2 times, and then release both the "Power" and "Resume/Cancel" buttons. (Each time the Resume/Cancel button is pressed, the Alarm and Power LEDs light alternately, Alarm in orange and Power in green, starting with Alarm LED.)
• When the Power LED lights in green, press the "Resume/Cancel" button 4 times to reset ink absorber counter. (Each time the Resume/Cancel button is pressed, the Alarm and Power LEDs light alternately, Alarm in orange and Power in green, starting with Alarm LED.)

About Canon Pixma Pro9500 and Pro9000:

• Error 9100
• Error code 1000, 1001 or 1002 (with two flashing lights orange)