Back to results
US 10,308,050 B2Granted
Printing apparatus
AssigneeSeiko Epson Corporation
InventorsRyuji Moriyama, Hiroyuki Maeda, Atsushi Nakazawa, Noritsuna Rokuhara
Life of this patent
Estimating the term…
Abstract
A printing apparatus includes a transport portion that transports a medium, a printing head that performs printing on the medium, a medium detection device that is arranged upstream of the printing head in a transport direction of the medium and detects a side edge of the medium in a width direction intersecting with the transport direction, and a control unit that controls the transport portion, the printing head, and the medium detection device.
Claims14
A printing apparatus comprising:
- a transport portion that transports a medium;
- a printing head that performs printing on the medium;
- a medium detection unit that is arranged upstream of the printing head in a transport direction of the medium and detects a side edge of the medium in a width direction intersecting with the transport direction, the medium detection unit including
- a carriage that is movable in the width direction in a position upstream of the printing head in the transport direction, and
- two sensors that are disposed in different positions in the width direction in the carriage;
- and
- a control unit that controls the transport portion, the printing head, and the medium detection unit, and acquires width information of the medium, the control unit rendering at least one of the sensors to detect a side edge of the medium in the width direction by controlling the medium detection unit to move the carriage,
- the control unit controlling only one sensor of the sensors to detect side edges of the medium in response to acquiring the width information on the width of the medium that is less than or equal to a set width,
- the control unit controlling the two sensors to detect the side edges of the medium in response to acquiring the width information on the width of the medium that exceeds the set width.
6 more elements
A printing apparatus comprising:
- a transport portion that transports a medium;
- a printing head that performs printing on the medium;
- a medium detection unit that is arranged upstream of the printing head in a transport direction of the medium and detects a side edge of the medium in a width direction intersecting with the transport direction, the medium detection unit including
- a carriage that is movable in the width direction in a position upstream of the printing head in the transport direction, the carriage being disposed to be movable in the width direction in a position on the opposite side of a transport path of the medium transported by the transport portion from the printing head side, and
- two sensors that are disposed in different positions in the width direction in the carriage, the two sensors being optical sensors that irradiate the medium with light from a position on the opposite side of the transport path from the printing head side;
- and
- a control unit that controls the transport portion, the printing head, and the medium detection unit, the control unit rendering at least one of the sensors to detect a side edge of the medium in the width direction by controlling the medium detection unit to move the carriage,
- the medium detection unit further including a casing that accommodates the carriage and the sensor, the casing including a medium support unit that supports the medium transported along the transport path, and the medium support unit including a window portion that is capable of transmitting the light from the two sensors, and
- the two sensors detecting the side edge of the medium through the window portion that is a transparent member that is capable of transmitting the light and that extends in the width direction.
6 more elements
Dependencies are inferred from the claim text.