Serial electrophotography apparatus and fixing temperature control method

摘要

A conveying unit conveys a recording sheet. A carriage comprises a process unit for forming a latent image and developing it so as to produce a developed image on an image carrier having a rotation axis parallel to a direction along which the conveying unit conveys the recording sheet, and a fixing unit using a fixing member for fixing the developed image to the recording sheet after the developed image has been transferred to the recording sheet. A transfer unit transfers the developed image produced on the image carrier to the recording sheet. A moving unit moves the carriage on the transfer unit along a direction perpendicular to the direction along which the conveying unit conveys the recording sheet, the carriage thus repeating a go-and-return operation in which the carriage fixes a line of the developed image onto the recording sheet while moving and then returns to a predetermined position. A heating unit heats the fixing member to a predetermined temperature. A measuring unit measures the temperature of the fixing member. A heating control unit drives the heating unit so as to make the temperature of the fixing member be the predetermined temperature based on the temperature measured by the measuring unit, the driving being performed either when the carriage is located at the predetermined position or while the carriage is returning to the predetermined position after the go-and-return operations has been performed a predetermined number of times.