Patent ID: 8608274
Filing Date: 2013-12-17
Classification: B41J,G03G

Abstract:
1. A recording apparatus comprising: a recording unit configured to record images on a recording medium, the recording unit including at least one recording head of line-type; a first pair of rollers located at an upstream side of the recording head, configured to nip and convey the recording medium along a path; a second pair of rollers, located at a downstream side of the recording head, configured to nip and convey the recording medium along the path, wherein a pressure applied to the recording medium by the first pair of rollers is greater than a pressure applied to the recording medium by the second pair of rollers, and the second pair of rollers rotates at a faster peripheral velocity than the first pair of rollers; a first signal generation unit, including a speed meter that detects a surface of the recording medium being conveyed during recording at the upstream side of the recording head in a vicinity of one of the first pair of rollers, configured to generate a first signal according to a movement speed of the recording medium; a second signal generation unit including a rotary encoder, configured to generate a second signal according to a rotation of one of the first pair of rollers; a correction unit that corrects the first signal by interpolation processing when the speed meter outputs an abnormal signal; and a control unit configured to control recording timings of the recording head on the recording medium based on the first signal and the second signal so as to suppress adverse effects caused by the first pair of rollers.