Inkjet recording apparatus

摘要

An inkjet recording apparatus includes a plurality of line heads disposed along a conveyance direction of a recording sheet and including a plurality of nozzles to discharge ink droplets, the plurality of nozzles disposed in a direction perpendicular to the conveyance direction of the recording sheet; a plurality of edge sensors corresponding to respective line heads, to detect a lateral edge of the recording sheet; a plurality of actuators corresponding to the respective line heads, to move to the respective line heads laterally in a sheet width direction; a head position adjustor to determine movement amounts of the respective line heads in accordance with outputs of the plurality of edge sensors; and a failure determiner to obtain outputs of the plurality of edge sensors simultaneously and identify a failure of the plurality of edge sensors based on a combination of the outputs from the plurality of edge sensors.

主权项

1. An inkjet recording apparatus comprising:
a plurality of line heads positioned along a conveyance direction of a recording sheet, each of the plurality of line heads including a plurality of nozzles, each of the plurality of nozzles configured to discharge ink droplets, the plurality of nozzles positioned in a direction perpendicular to the conveyance direction of the recording sheet; a plurality of edge sensors, a first edge sensor of the plurality of edge sensors corresponding to a first line head of the plurality of line heads, each of the plurality of edge sensors configured to detect a lateral edge of the recording sheet; a plurality of actuators, a first actuator of the plurality of actuators corresponding to the first line head of the plurality of line heads, the first actuator of the plurality of actuators configured to move the first line head of the plurality of line heads laterally in a sheet width direction of the recording sheet; and a controller configured to,
receive output from each of the plurality of edge sensors, determine movement of each of the plurality of line heads based on the received output from the plurality of edge sensors, andidentify a first failure for each of the plurality of edge sensors based on a combination of the received output from each of the plurality of edge sensors.