IMAGE FORMING APPRATUS, IMAGE FORMING SYSTEM, IMAGE FORMING METHOD, CONTROL PROGRAM FOR ELIMINATING CONVEYANCE FAILURE, AND INFORMATION RECORDING MEDIUM HAVING RECORDED THEREON CONTROL PROGRAM FOR ELIMINATING CONVEYANCE FAILURE

摘要

An image forming apparatus is disclosed that forms an image based on a control signal from an image processing controlling unit that processes input image information into image data. The apparatus includes a carriage that moves in a main scanning direction in accordance with the control signal; a conveyance unit that conveys a recording medium in a sub-scanning direction; an output detection unit that detects motor outputs of the carriage at any plural points when the carriage moves at a constant speed; and a jamming determination unit that compares an average value of the motor outputs of the carriage between the plural points with a predetermined tolerance to determine a conveyance failure.