Patent ID: 11987061

Abstract:
An image forming apparatus includes a recording head and processing circuitry. The recording head includes a plurality of nozzles. The processing circuitry prints a reference adjustment pattern on a recording medium using a reference nozzle, which is one of the nozzles. When the recording medium is conveyed from the reference nozzle in a sub-scanning direction by a predetermined conveyance amount, the processing circuitry prints an adjustment pattern on the recording medium using a designated nozzle, which is apart by a predetermined distance with respect to a nozzle apart from the reference nozzle in the sub scanning direction by the predetermined conveyance amount. The processing circuitry detects the reference adjustment pattern and the adjustment pattern, computes a distance between the reference adjustment pattern and the adjustment pattern in the sub-scanning direction, and determines whether a standard deviation of the distance computed is equal to or larger than a predetermined value.