Image recording device

摘要

In an image recording device, in a case where a J-th nozzle (H2 [3]) of a certain image recording head (H2) among plural image recording heads (H1, H2) is in a discharge defect state, a dot size of an image recording droplet discharged from a J-th nozzle (H1 [3]) of an image recording head (H1) other than the image recording head (H2) is changed to a size within dot sizes used in normal image recording in a high-speed image recording mode, which is larger than a dot size of an image recording droplet to be discharged from the discharging nozzle (H2 [3]). In a low-speed image recording mode, the dot size of the image recording droplet discharged from the discharging nozzle (H1 [3]) is changed to a size which is larger than the largest dot size among dot sizes used in the normal image recording.

主权项

1. An image recording device comprising:
an image recording unit that includes a plurality of image recording heads in which each head includes the same number of a plurality of discharging nozzles that discharge an image recording droplet; an image processing unit that converts an input image into dot data configured by dots of two or more sizes; a data transmitting unit that transmits the dot data from the image processing unit to the image recording unit; an image recording mode control unit that controls the image recording unit so that an image is recorded in at least two image recording modes where image recording speeds are different from each other; a discharge state reading unit that reads discharge states of the plurality of discharging nozzles; and a dot data change unit that changes, when the discharge state reading unit detects a discharge defect of a first discharging nozzle which is a J-th discharging nozzle among the plurality of discharging nozzles of one image recording head among the plurality of image recording heads, a dot size of an image recording droplet discharged from a second discharging nozzle which is a J-th discharging nozzle of at least one image recording head other than the image recording head including the first discharging nozzle to a first size larger than a dot size of an original image recording droplet to be discharged from the first discharging nozzle in a case where an image is recorded in a first mode where an image recording speed is fast among the image recording modes, and changes the dot size of the image recording droplet discharged from the second discharging nozzle to a second size which is larger than the largest dot size among the dot sizes in a case where the image is recorded in a second mode where the image recording speed is slower than that in the first mode among the image recording modes.