Hello all, On the Canon IPF6300 this reset works great as long as you don't let the maintenance cartridge got lower than 20%, and will still work if it reads 20%. Not to toot my own horn but I reported way back how to get into the Canon IPF6300 to Service mode.
Now I am glad as I just reset my maintenance cartridge just when it got to 20%.
Right now I removed the top screws and this tray/maintenance cartridge is easy to clean and resuse.
Thanks
Christopher