US 12,472,741 B2
Inkjet recording apparatus capable of suppressing ink smudge on conveying belt
Yu Sasaki, Osaka (JP); and Yoshiya Kusunoki, Osaka (JP)
Assigned to KYOCERA Document Solutions Inc., Osaka (JP)
Filed by KYOCERA Document Solutions Inc., Osaka (JP)
Filed on Feb. 28, 2024, as Appl. No. 18/590,839.
Claims priority of application No. 2023-031897 (JP), filed on Mar. 2, 2023.
Prior Publication US 2024/0294007 A1, Sep. 5, 2024
Int. Cl. B41J 2/17 (2006.01); B41J 2/045 (2006.01); B41J 2/165 (2006.01); B41J 13/08 (2006.01)
CPC B41J 2/04581 (2013.01) [B41J 2/04573 (2013.01); B41J 2/16526 (2013.01); B41J 2/17 (2013.01); B41J 13/08 (2013.01)] 4 Claims
OG exemplary drawing
 
1. An inkjet recording apparatus, comprising:
a conveying belt which conveys a sheet;
a recording head which includes a plurality of nozzles that discharge ink and discharges the ink toward the sheet to form an image on the sheet; and
a control portion which controls the recording head, wherein
the conveying belt includes a flushing area formed with an opening,
the flushing area is arranged plurally in a movement direction of the conveying belt with intervals provided therebetween,
during conveyance of the sheet, the control portion causes the recording head to carry out, separate from image forming processing in which the ink is discharged toward the sheet, flushing processing in which the ink is discharged toward the opening of the flushing area not overlapping with the sheet,
the control portion causes the recording head to carry out, before discharging the ink, meniscus oscillation processing in which a meniscus of the ink in each of the nozzles is caused to oscillate,
the control portion controls, for each of the nozzles, the meniscus oscillation processing that is carried out before the image forming processing and the meniscus oscillation processing that is carried out before the flushing processing,
when causing the nozzle to carry out the meniscus oscillation processing that is carried out before the image forming processing, the control portion sets a number of oscillations of the meniscus oscillation processing that is carried out before the image forming processing based on a first amount of time that has elapsed before the image forming processing to be carried out this time since the image forming processing carried out last time by the nozzle that is to carry out the meniscus oscillation processing this time, and
when causing the nozzle to carry out the meniscus oscillation processing that is carried out before the flushing processing, the control portion sets a number of oscillations of the meniscus oscillation processing that is carried out before the flushing processing based on a second amount of time that has elapsed before the flushing processing to be carried out this time since the flushing processing carried out last time by the nozzle that is to carry out the meniscus oscillation processing this time.