Recording apparatus and method for controlling recording apparatus
AssigneeSeiko Epson Corporation
InventorsSoshi OKAWA, Haruki MIYASAKA, Takehiro SHIN, Takumi Watanabe, Hiroki SHINAGAWA
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Abstract
A recording apparatus includes a rotary ENC that detects rotation of a motor for moving a recording unit, and a linear ENC that detects a position of the recording unit. A control unit is configured to execute a sampling mode of acquiring a rotation amount of the motor necessary for moving the recording unit from a first position to a second position based on an output signal from the linear ENC and an output signal from the rotary ENC, and control the motor based on a result of the sampling mode to position the recording unit at a target position.
Claims14
A recording apparatus comprising:
- a conveyance path configured to convey a medium;
- a recording unit configured to perform recording on the medium, the recording unit being movable in a direction advancing and retracting with respect to the conveyance path;
- a facing portion disposed to face the recording unit;
- a motor as a power source when moving the recording unit;
- a moving unit configured to move the recording unit by receiving power from the motor;
- a position detection unit configured to detect a position of the recording unit with respect to the conveyance path;
- a rotation detection unit configured to detect rotation of the motor;
- and
- a control unit configured to control the motor based on output signals from the position detection unit and the rotation detection unit, wherein
- the position detection unit is a linear encoder including a linear scale provided along a movement direction of the recording unit, and a first detection unit that is a detection unit provided in the recording unit and that detects the linear scale,
- the rotation detection unit is a rotary encoder including a rotary scale that rotates with the rotation of the motor, and a second detection unit that detects the rotary scale, and
- the control unit is configured to execute a sampling mode of acquiring a rotation amount of the motor necessary for moving the recording unit from a first position to a second position, based on an output signal from the linear encoder and an output signal from the rotary encoder, and control the motor based on a result of the sampling mode to position the recording unit at a target position.
A method for controlling a recording apparatus including
- a conveyance path configured to convey a medium,
- a recording unit configured to perform recording on the medium, the recording unit being movable in a direction advancing and retracting with respect to the conveyance path,
- a facing portion disposed to face the recording unit,
- a motor as a power source when moving the recording unit,
- a moving unit configured to move the recording unit by receiving power from the motor,
- a position detection unit configured to detect a position of the recording unit with respect to the conveyance path, and
- a rotation detection unit configured to detect rotation of the motor,
- the position detection unit being a linear encoder including a linear scale provided along a movement direction of the recording unit, and a first detection unit that is a detection unit provided in the recording unit and that detects the linear scale,
- the rotation detection unit being a rotary encoder including a rotary scale that rotates with the rotation of the motor, and a second detection unit that detects the rotary scale, the control method comprising:
- a first step of acquiring a rotation amount of the motor necessary for moving the recording unit from a first position to a second position, based on an output signal from the linear encoder and an output signal from the rotary encoder;
- and
- a second step of controlling the motor based on a result in the first step to position the recording unit at a target position.
Dependencies are inferred from the claim text.