Image forming apparatus, image forming method, and recording medium storing a program

摘要

An image forming apparatus that performs correction to make gradation values adding both of two head areas (A+C, B+D) approximately equal. An area whose density is the lowest is set as a target density. Assuming densities for head areas A=70, B=100, C=40, D=90, head areas B and D are corrected with correction amount that ΔB become equal to ΔD (ΔB=ΔD=40) in accordance with target value (A+C=100).

主权项

1. An image forming apparatus that includes parallel recording heads divided into multiple blocks per predefined number of nozzles to eject droplets in different sizes, and forms an image by ejecting the droplets from the recording head on a recording medium,
the image forming apparatus comprising: a measurement unit to measure image density on the recording medium per in units of a divided block; and a correction unit to correct density characteristic of each recording head comprising a block whose density is the highest.