| 摘要 |
<p>An apparatus and method for controlling a feeding speed and a printing speed of an image forming device are described. The apparatus includes an encoder to convert motion of a feeding motor to an electrical signal, an average feeding speed detector to count variations of an output signal of the encoder, to measure a time for counting each of the variations of the output of the encoder, and to calculate an average feeding speed by multiplying the total number of the counted variations by a feeding distance per variation to obtain a result and dividing the result by the sum of the measured times, and a controller to control the feeding speed by controlling the feeding motor based on the calculated average feeding speed. Accordingly, in the image forming device, which uses a DC motor as a driving source of a feeding device, an image length deviation effect that occurs when a length of a printed image is longer or shorter than a desired image length can be reduced by detecting an exact feeding speed of a medium and controlling the feeding speed and a printing speed based on the detected feeding speed of the medium.</p> |
