Image forming apparatus, recording medium conveying method, and recording medium

A recording medium conveying method in an image forming apparatus, the method comprising:

• conveying a recording medium bearing a marker pattern by a predetermined distance in a first direction;
• conveying the recording medium in a second direction, opposite the first direction, by a reverse conveyance distance after a colorimetric pattern formed at the predetermined distance from the marker pattern is fixed, the reverse conveyance distance equivalent to a target conveyance distance plus an error value;
• conveying the recording medium in the first direction until the imaging device detects the marker pattern;
• and
• conveying the recording medium in the first direction to a colorimetry position where colorimetry of the colorimetric pattern is performed.

A non-transitory recording medium storing a plurality of program codes which, when executed by one or more processors, causes the processors to perform a recording medium conveying method, the method comprising:

• conveying a recording medium bearing a marker pattern by a predetermined distance in a first direction;
• conveying the recording medium in a second direction, opposite the first direction, by a reverse conveyance distance after a colorimetric pattern formed at the predetermined distance from the marker pattern is fixed, the reverse conveyance distance equivalent to a target conveyance distance plus an error value;
• conveying the recording medium in the first direction until the imaging device detects the marker pattern;
• and
• conveying the recording medium in the first direction to a colorimetry position where colorimetry of the colorimetric pattern is performed.