Patent ID: 11966188
Assignee: HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.
Field: Handling (Mechanical engineering)
Classification: CPC B  G | IPC B  G

Claim 0:
1. An image forming apparatus, comprising:
a print engine to perform an image forming job;
a motor to drive a fuser;
a driving circuit, to supply a power to the motor, and including a sensor to sense an amount of current of the power supplied to the motor; and
a processor, in a case in which a warm-up of the fuser is required, to analyze a frequency component of the current supplied to the motor by using the amount of current sensed by the sensor for a predetermined time, and to determine an occurrence of a jam in the fuser based on a predetermined frequency band in the analyzed frequency component corresponding to pre-stored information relating to the predetermined frequency band during a paper jam,
wherein the processor identifies the predetermined frequency band from among the analyzed frequency component and determines the occurrence of a jam based on the magnitude of the predetermined frequency band in the analyzed frequency component and pre-stored information relating to the frequency component during normal operation,
wherein the processor, based on the jam occurring, suspends an operation currently in progress.