Canon PIXMA reset waste ink

Canon PIXMA iP1000 and iP1500
Waste Ink Counter Reset Manual for Service mode
1. Turn off the printer and disconnect the printer cable.
2. Press and hold the POWER button, turn on the printer.
3. The indicator (L.E.D.) should be green.
4. Press and release the RESUME button , the indicator (L.E.D.) should be orange.
5. Press and release the RESUME button again, the indicator (L.E.D.) should be green.
6. Release both buttons.