Image forming apparatus, image forming method and storage medium

摘要

An image forming apparatus includes a detection unit that emits light on a recording medium or a platen and detects reflected light while the detection unit moves in a direction perpendicular to a transportation direction of the recording medium; a width calculation unit that compares a value indicative of light intensity responsive to the reflected light with a threshold, and calculates a width of the recording medium measured from a position of the detection unit where the value indicative of light intensity responsive to the reflected light becomes greater than or equal to the threshold; an image formation unit that performs an operation of forming an image based on the calculated width of the recording medium; and an image formation control unit that halts the operation of forming the image upon detecting that the calculated width is less than or equal to a predefined value.

主权项

1. An image forming apparatus comprising:
a detection unit that emits light on a recording medium or a platen and detects light reflected from the recording medium or the platen while the detection unit moves in a direction perpendicular to a transportation direction of the recording medium; a width calculation unit that compares a value indicative of light intensity responsive to the light reflected from the recording medium or the platen detected by the detection unit with a threshold, and calculates a width of the recording medium measured from a position of the detection unit where the value indicative of light intensity responsive to the reflected light becomes greater than or equal to the threshold; an image formation unit that performs an operation of forming an image on the recording medium based on the width of the recording medium calculated by the width calculation unit; and an image formation control unit that halts the operation of forming the image on the recording medium by the image formation unit upon detecting that the width of the recording medium calculated by the width calculation unit is less than or equal to a predefined value.