: Provides advanced calibration options beyond standard user-facing maintenance tools.
Release the Stop button while still holding Power , then press the Stop button 5 or 6 times (depending on the model). canon service tool v3800
: Allows users to read and save data from the printer's non-volatile memory or print an EEPROM status page for diagnostics. Print Testing canon service tool v3800
Press the button 5 times (for G-series) or 2 times (for older iP/MG series). Release the Power button. canon service tool v3800