opening
introduction
low toner cartridge
toner level sensor?
cartridge take apart
printer electronics
identifying the toner chip
capture setup
capture traffic
1-Wire protocol
1-wire capture
family can command codes
analyse DS2432 traffic
implementing DS2432
fuzz printer
read secret
secret protected
toner not low anymore
refill toner
printing with low toner
counterfeit chip
read secret from counterfeit chip
cartrigde end-of-life
funeral
closing