Image-Recording Device
AssigneeBrother Kogyo Kabushiki Kaisha
InventorsTetsuya Ouchi, Jun Morikawa
Life of this patent
Estimating the term…
Abstract
An image-recording device includes a conveying portion, a carriage, a recording head, a sensor, and an edge-detecting portion. The carriage reciprocates along a scanning direction. The recording head is supported on the carriage. The sensor is supported on the carriage at a position shifted from the recording head in the scanning direction and upstream of the recording head in the conveying direction, the sensor being capable of detecting presence of the recording medium. The edge-detecting portion controls the sensor to detect at least one of a leading edge and a trailing edge of a recording medium.
Claims19
An image-recording device comprising:
- a conveying portion that conveys a recording medium in a conveying direction;
- a carriage that reciprocates along a scanning direction orthogonal to the conveying direction;
- a recording head supported on the carriage, the recording head performing recording operations for recording an image on the recording medium;
- a sensor supported on the carriage at a position shifted from the recording head in the scanning direction and upstream of the recording head in the conveying direction, the sensor being capable of detecting presence of the recording medium;
- and
- an edge-detecting portion that controls the sensor to detect at least one of a leading edge and a trailing edge of a recording medium.
An image-recording device comprising:
- a conveying portion that conveys a recording medium in a conveying direction;
- a carriage that reciprocates along a scanning direction orthogonal to the conveying direction;
- a recording head supported on the carriage, the recording head performing recording operations for recording an image on the recording medium;
- a sensor supported on the carriage at a position shifted from the recording head in the scanning direction and upstream of the recording head in the conveying direction, the sensor being capable of detecting presence of the recording medium;
- a left-and-right-edge detecting portion that controls the carriage to move in the scanning direction while detecting left and right edges of a recording medium based on a detection signal from the sensor;
- a leading-and-trailing-edge detecting portion that controls the carriage to be placed in a standby position, at which position the recording head is outside an area through which the recording medium passes and the sensor is within the area through which the recording medium passes, the leading-and-trailing-edge detecting portion detecting leading and trailing edges of a recording medium based on a detection signal from the sensor when the conveying portion conveys the recording medium;
- a memory that stores a left and right edge data indicating positions of the left and right edge of the recording medium detected by the left-and-right-edge detecting portion, distinguishing between a left and right edge data of a currently recording medium and a left and right edge data of a next recording medium on which an image is to be recorded;
- a recording medium determining portion that determines, after the leading-and-trailing-edge detecting portion detects the trailing edge of the currently recording medium, whether the recording medium associated with the left and right edge data is the next recording medium, based on the detection of the Leading edge for the next recording medium;
- and
- a controlling portion that controls the recording head to perform an image-recording operation on each recording medium based on the left and right edge data stored in the memory.
Dependencies are inferred from the claim text.