18701712. PREVENTION OF CRUM CHIP MALFUNCTION THROUGH LOCK CONTROL OF CONSUMABLE UNIT (Hewlett-Packard Development Company, L.P.)
Contents
PREVENTION OF CRUM CHIP MALFUNCTION THROUGH LOCK CONTROL OF CONSUMABLE UNIT
Organization Name
Hewlett-Packard Development Company, L.P.
Inventor(s)
Jaeyoon One of Seongnam Si (KR)
Kiyoung Lee of Seongnam Si (KR)
PREVENTION OF CRUM CHIP MALFUNCTION THROUGH LOCK CONTROL OF CONSUMABLE UNIT
This abstract first appeared for US patent application 18701712 titled 'PREVENTION OF CRUM CHIP MALFUNCTION THROUGH LOCK CONTROL OF CONSUMABLE UNIT
Original Abstract Submitted
An example image forming apparatus includes a locking unit to lock a consumable unit to the image forming apparatus, the consumable unit including a customer replaceable unit monitoring (CRUM) chip, a CRUM power supply to supply power to the CRUM chip, and a main controller to perform an image forming job using the consumable unit, to record a usage history of the consumable unit according to the image forming job on the CRUM chip by communicating with the CRUM chip, to, based on a consumable unit extract command being input during the communication with the CRUM chip, end the communication with the CRUM chip and control the CRUM power supply to cut the power supplied to the CRUM chip, and, based on the power cutting, control the locking unit to unlock the consumable unit.
