Printer and printing method
AssigneeSeiko Epson Corporation
InventorHitoshi Igarashi
Life of this patent
Estimating the term…
Abstract
A printer includes a roll driving mechanism for causing a roll to rotate and a medium to be conveyed, a roll driving section for driving the roll driving mechanism, a first conveying mechanism for conveying the medium, a first driving section for driving the first conveying mechanism, a second conveying mechanism for conveying the medium, and a second driving section for driving the second conveying mechanism, and a controller for performing a control in such a way that when there is a change in the rate at which the first conveying mechanism conveys the medium, the maximum amount of the difference between the amount of the medium conveyed by the roll driving mechanism and the amount of the medium conveyed by the second conveying mechanism exceeds the maximum amount of the difference.
Claims7
A printer comprising:
- a roll driving mechanism including a roller, configured to cause the roll onto which a medium has been wound in a roll form to rotate, and convey the medium in a conveying direction;
- a roll driving section configured to drive the roll driving mechanism;
- a first conveying section configured to convey the medium, the first conveying section being provided downstream from the roll in the conveying direction;
- a first driving section configured to drive the first conveying section;
- a print head configured to perform printing on the medium, the print head being provided downstream from the first conveying section in the conveying direction;
- a second conveying section configured to convey the medium, the second conveying section being a pair of rollers, the second conveying section being provided between the roll and the first conveying section;
- a second driving section configured to drive the second conveying section;
- a controller configured to control operation of the roll driving section, the first driving section, and the second driving section such that, during a single rotation of the roll,
- the maximum amount of the difference between the amount of the medium conveyed by the roll driving mechanism and the amount of the medium conveyed by the second conveying section exceeds
- the maximum amount of the difference being between the amount of the medium conveyed by the second conveying section and the amount of the medium conveyed by the first conveying section.
A printing method comprising:
- driving a roll driving mechanism for driving a roll on which a medium has been wound in roll form and conveying the medium in a conveying;
- driving a first conveying section provided downstream from the roll in the conveying direction such that the first convey section conveys the medium;
- printing on the medium by a print head provided downstream from the first conveying section in the conveying direction;
- driving a second conveying section provided between the roll and the first conveying section such that the second conveying section conveys the medium, the second conveying section being a pair of rollers;
- and
- during a single rotation of the roll, controlling the driving of the roll driving mechanism, driving of the first conveying section, and the driving of the second conveying section such that the maximum amount of the difference between the amount of the medium conveyed by the roll driving mechanism and the amount of the medium conveyed by the second conveying section to exceed
- the maximum amount of the difference being between the amount of the medium conveyed by the second conveying section and the amount of the medium conveyed by the first conveying section.
Dependencies are inferred from the claim text.