Liquid discharge apparatus, control method, and recording medium
AssigneeRicoh Company, Ltd.
InventorYuri Suetsugu
Life of this patent
Estimating the term…
Abstract
A liquid discharge apparatus according to an embodiment of the present disclosure includes: a memory; a hardware processor coupled to the memory and configured to scan a carriage having a liquid discharge head in a main-scanning direction and control discharge of liquid from the liquid discharge head; a roller rotated by a motor to convey a medium in a sub-scanning direction; and an image sensor configured to image a liquid discharged portion on the medium. The hardware processor shifts channels of the liquid discharge head on which discharge of liquid is valid, depending on thickness of stripe-like density unevenness detected by the image sensor.
Claims10
A liquid discharge apparatus comprising:
- a memory;
- a hardware processor coupled to the memory and configured to scan a carriage having a liquid discharge head in a main-scanning direction and control discharge of liquid from the liquid discharge head;
- a roller rotated by a motor to convey a medium in a sub-scanning direction;
- and
- an image sensor configured to image a liquid discharged portion on the medium,
- wherein the hardware processor shifts channels of the liquid discharge head on which discharge of liquid is valid, depending on a thickness of a stripe-like density unevenness of the liquid discharged portion between a first liquid discharge and a second liquid discharge detected by the image sensor, the second liquid discharge being a liquid discharge immediately after the first liquid discharge.
A control method implemented by a computer as a liquid discharge apparatus including a hardware processor to scan a carriage having a liquid discharge head in a main-scanning direction and control discharge of liquid from the liquid discharge head, a roller rotated by a motor to convey a medium in a sub-scanning direction, and an image sensor to image a liquid discharged portion, the control method comprising:
- acquiring an imaging result of the image sensor;
- and
- shifting channels of the liquid discharge head on which discharge of liquid is valid, depending on a thickness of a stripe-like density unevenness of the liquid discharged portion between a first liquid discharge and a second liquid discharge detected by the image sensor, the second liquid discharge being a liquid discharge immediately after the first liquid discharge.
A non-transitory computer-readable recording medium on which an executable program is recorded, the program being executed by a computer as a liquid discharge apparatus including a hardware processor to scan a carriage having a liquid discharge head in a main-scanning direction and control discharge of liquid from the liquid discharge head, a roller rotated by a motor to convey a medium in a sub-scanning direction, and an image sensor to image a liquid discharged portion, the program instructing the computer to:
- acquire an imaging result of the image sensor;
- and
- shift channels of the liquid discharge head on which discharge of liquid is valid, depending on a thickness of a stripe-like density unevenness of the liquid discharged portion between a first liquid discharge and a second liquid discharge detected by the image sensor, the second liquid discharge being a liquid discharge immediately after the first liquid discharge.
Dependencies are inferred from the claim text.