Image forming apparatus, image forming method, and storage medium in which abnormality judging program is stored

An abnormality judging method comprising:

• (a) controlling such that an output component, which is equipped with output ends corresponding to each of light emitting elements of an exposure component that is equipped with a plurality of independently drivable light emitting elements arrayed along a first direction and which exposure component exposes photoconductors by scanning, in a second direction intersecting the first direction, light that is emitted when the light emitting elements are driven by drive signals based on image data, at normal times outputs, one line at a time, drive signals of plural lines when exposure is performed in one scan by the exposure component from each of the output ends and, when correcting an amount of misalignment in the first direction, outputs drive signals of one line corresponding to a line on a most upstream side of drive signals of plural lines from the output ends that have been shifted by a number corresponding to the amount of misalignment in the first direction;
• and
• (b) selecting, from a plurality of connecting wires that interconnect each of the output ends of the output component and each of the light emitting elements of the exposure component, at least one of the connecting wires through which the drive signals are transmitted and judging whether or not the drive signals are being normally transmitted through the connecting wire that the method has selected.

A storage medium readable by a computer, the storage medium storing a program of instructions executable by the computer to perform a function for judging abnormality, the function comprising:

• (a) controlling such that an output component, which is equipped with output ends corresponding to each of light emitting elements of an exposure component that is equipped with a plurality of independently drivable light emitting elements arrayed along a first direction and which exposure component exposes photoconductors by scanning, in a second direction intersecting the first direction, light that is emitted when the light emitting elements are driven by drive signals based on image data, at normal times outputs, one line at a time, drive signals of plural lines when exposure is performed in one scan by the exposure component from each of the output ends and, when correcting an amount of misalignment in the first direction, outputs drive signals of one line corresponding to a line on a most upstream side of drive signals of plural lines from the output ends that have been shifted by a number corresponding to the amount of misalignment in the first direction;
• and
• (b) selecting, from a plurality of connecting wires that interconnect each of the output ends of the output component and each of the light emitting elements of the exposure component, at least one of the connecting wires through which the drive signals are transmitted and judging whether or not the drive signals are being normally transmitted through the connecting wire that the function has selected.