Image scanning apparatus and paper transfer method of the image scanning apparatus

摘要

An image scanning apparatus includes a scanning unit which scans paper, a paper transfer unit which transfers the paper to the scanning unit using a BLDC (Brushless DC) motor, a sensor unit which senses driving information of the BLDC motor, a scan controlling unit which controls operations of the scanning unit, and generates a control command including information regarding a driving direction of the BLDC motor, a driving signal unit which generates a driving signal for controlling the BLDC motor, and a digital controlling unit which controls operations of the driving signal unit in a digital method based on a generated control command, sensed driving information and a digital gain value according to a driving direction of the BLDC motor.

主权项

1. An image scanning apparatus comprising:
a scanning unit which scans paper; a paper transfer unit which transfers the paper to the scanning unit using a Brushless DC (BLDC) motor; a sensor unit which senses driving information of the BLDC motor; a scan controlling unit which controls operations of the scanning unit, and generates a control command including information of a driving direction regarding the BLDC motor; a driving signal unit which generates a driving signal for controlling the BLDC motor; and a digital controlling unit which controls operations of the driving signal unit in a digital method based on the generated control command and a digital gain value according to the sensed driving information and the driving direction of the BLDC motor.