hola,busca y descarga de aca el service tool..
http://www.yoreparo.com/foros/reparacion_de_impresoras/soluciones/51994.html
aca el resetr manual:
Canon PIXMA iP1000
Waste Ink Counter Reset.
Step 1: Manual for Service mode
1. Unplug power and USB.
2. Open door and hold power button.
3. Connect power.
4. Close door, then release power button.
step 2 : Software for Permanant
1. Reconnect the printer cable.
2.Open General Tools software and select (USB PORT)
3 .Choose (SET DESTINATION 1) And it should be reset.
Remark "After service mode Pls use software for permanent reset"
saludos y suerte