Here this procedure how to reset waste ink printer canon MPC190

* Enter SERVICE MODE -- By pressing Menu, Copy, Scan, Copy, Copy
* Select TEST MODE.
* Select 8 PRINTER TEST in TEST MODE.
* Select 3. [EEPROM CLEAR].
* Select 0. [INK COUNT].
* Press the Set key.
* Press the Stop/Reset key (returning to the state of 3), and then press the ON/OFF key.