A reference or standard pulse number, i.e., a standard number of pulses to be applied to a feeding motor to rotate a feeding roller and thereby feed a recording sheet, is set at Step S21. Subsequently, a feeding amount, A, needed by a recording head is calculated at Step S22, and a feeding amount, B, corresponding to an effective diameter of the feeding roller and the standard pulse number, is calculated at Step S23. Then, a differential pulse number to compensate for the difference between the feeding amounts A, B is determined at Step S24, and a unit error, R, between the feeding amount A and the sum of the feeding amount B (<A) and a feeding amount, C, corresponding to the differential pulse number is determined at Step S26. Subsequently, each time the feeding roller is driven, an accumulated error of the unit errors R is calculated at Step S27, and a number of drive pulses to be applied to the feeding motor is calculated, at Step S34, so that the accumulated error falls in a reference range. Finally, the feeding motor is operated according to the drive pulse number calculated at Step S34.
A recording apparatus includes a conveying unit for conveying a recording medium, a conveying motor for driving the conveying unit, an encoder for outputting a signal in accordance with the operating amount of the conveying unit, and a generating unit for generating an interruption signal when the conveying motor is stopped. The operating amount of the conveying unit is counted during a predesignated period beginning with the output of the interruption signal, and in accordance with the obtained count value, nozzles used for recording are selected and image recording is performed. With the above configuration, the recording apparatus removes problems, such as when a conveying unit conveys a recording medium, the halted position is shifted and the quality of an image formed on the recording medium is degraded, or when the conveying unit is operated to correct the position shifting, throughput is reduced.
