Inventor
LEE SEUNGSUP
KR6 patents
Patents
6 patentsUS11209754B2Dec 28, 2021
Structure for selectively locking toner inlet shutter of toner refill portion
HEWLETT PACKARD DEVELOPMENT CO2 citations70
US11364725B2Jun 21, 2022
Authentication mechanisms
HEWLETT PACKARD DEVELOPMENT CO2 citations68
US11454921B2Sep 27, 2022
Contacts for a print particle input recess
HEWLETT PACKARD DEVELOPMENT CO0 citations58
US11067917B2Jul 20, 2021
Detecting completion of injection of toner of toner refill cartridge
HEWLETT PACKARD DEVELOPMENT CO0 citations57
US11917112B2Feb 27, 2024
Image forming apparatus capable of expanding space between image forming part and scanner part
HEWLETT PACKARD DEVELOPMENT CO0 citations48
US11360411B2Jun 14, 2022
Toner refill cartridge connected to main body through interface between development cartridge and main body
HEWLETT PACKARD DEVELOPMENT CO0 citations48