Sajnos én úgy tudom, hogy ez a link szerinti módszer nem működik. Az MP190 néven leírt módszer igazából az MPC190 -hez van, ami egészen más. Ebben az MP190-ben sajna semmiféle service mód nincsen... A 145 160 -as módszert talán érdemes lenne kipróbálni, hátha...

Nekem jó a link. Benne a szöveg:

RESETTER CANON MP145,MP150,MP160,MP190,MP450

Before you could use sofware resetter to canon especially MP's type like mp145,mp150,mp160,mp450 and that was other.There was several steps that must be carried out that is the manual reset.
this is the step of manual reset

MP145 AND MP160

With the printer powered off but connected to a power source, press the Power button while pressing and holding the Stop/ Reset button.
When the Power is lit, press the Stop/Reset button two times while pressing and holding the Power button.
When releasing the Power button and the Stop / Reset button (regardless of order), the printer will move into a service mode. (Waiting for menu selection)
When the on/off lights in green, press the Stop/Reset button the specified number of time(s) according to the function listed in the table below.(Each time the Stop/Reset button is pressed, the LED lights alternately in orange and green, starting with orange.)note: press 4 times for waste ink counter reset.
The number of the Reset button pressing LED Function Remarks
0 time Green Power off
1 time Orange Service pattern print
2 times Green EEPROM print
3 times Orange EEPROM reset
4 times Green Waste ink counter reset

5) Unplug cable power. (for MP145 / MP150)
6) Turn Off Power. (for MP160)

CANON MP150
Following is the procedure to reset the wate ink counter for the Canon Pixma MP150

With the printer powered off but connected to a power source, press the Power button while pressing and holding the Stop/ Reset button.
When the Power is lit, press the Stop/Reset button two times while pressing and holding the Power button.
When releasing the Power button and the Stop / Reset button (regardless of order), the printer will move into a service mode. (Waiting for menu selection)
When the on/off lights in green, press the Stop/Reset button the specified number of time(s) according to the
function listed in the table below.(Each time the Stop/Reset button is pressed, the LED lights alternately in orange and green, starting with orange.)note: press 4 times for waste ink counter reset.
The number of the Reset button pressing LED Function Remarks
0 time Green Power off
1 time Orange Service pattern print
2 times Green EEPROM print
3 times Orange EEPROM reset
4 times Green Waste ink counter reset

5.urn off the printer.( it must be turn off)
then turn it on again.

After reset manual now remained the reset permanenly using software resetter for canon.the software can download from this link:
0.8.0
0.9.2