Image forming apparatus, image forming method, and non-transitory computer-readable storage medium

摘要

According to an embodiment, an image forming apparatus includes: a carriage, on which a recording head is mounted, to be driven by a driving source to reciprocate; and a drive control unit that controls driving of the driving source by PWM control. The drive control unit includes a detecting unit that detects at least any one of a position and a velocity of the carriage, a calculating unit that calculates PWM command values from detection results output from the detecting unit, a storing unit that stores a maximum value and a minimum value of the PWM command values, a comparing unit that compares a difference between the maximum value and the minimum value against a predetermined threshold value, and a stop-output command unit that, when the difference between the maximum value and the minimum value exceeds the threshold value, outputs a command to stop driving of the carriage.

主权项

1. An image forming apparatus comprising:
a carriage including a recording head mounted thereon, the carriage being to be driven by a driving source to reciprocate; and a drive control unit that controls driving of the driving source by PWM control, wherein the drive control unit comprises:
a detecting unit that detects at least any one of a position and a velocity of the carriage;a calculating unit that calculates PWM command values from detection results output from the detecting unit;a storing unit that stores a maximum value and a minimum value of the PWM command values calculated by the calculating unit;a comparing unit that compares a difference between the maximum value and the minimum value of the PWM command values against a predetermined threshold value; anda stop-output command unit that, when a result of comparison made by the comparing unit is that the difference between the maximum value and the minimum value of the PWM command values exceeds the threshold value, outputs a command to stop driving of the carriage.