Perform hard reset for your printer. Following are main steps for hard reset.For complete setup go to [https://guideusermanual.com/product-name-ipf750-manual&po=209425&lang=English|Canon iPF750 Manual].
* Turn ON the printer.
* Press and Hold the “Reset button” on the printer.
* While pressing the “Reset button“, press and hold the “Color Start” button.
* Wait for 5 seconds.
* Release the “Color Start” button, and then release the “Reset Button“.
* Wait until the printer starts to configure itself. ...