Canon Service Tool V3800 -

After resetting your printer, consider opening the bottom casing to wash and dry the felt pads, or place a thick plastic tray under the printer to catch any potential leaks.

: While still holding the Stop/Reset button, press and hold down the Power button. The power LED will light up green. canon service tool v3800

Releasing the Stop button and pressing it 5 or 6 times (depending on the model) while still holding Power. After resetting your printer, consider opening the bottom

Note: Newer Canon G-series (MegaTank) and TS-series printers generally require Service Tool V5000 or higher. How to Boot the Printer into Service Mode After resetting your printer

Reads, saves, and writes EEPROM data to troubleshoot firmware bugs.