Printing apparatus
AssigneeSeiko Epson Corporation
InventorTakashi Akahane
Life of this patent
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Abstract
A printing apparatus includes a transport unit configured to transport a medium, a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium, and a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium. The tension applying unit is configured so that the rod member moves along a predetermined direction as at least one of the transport unit and the winding unit is driven to transport the medium. An upper limit position of a movement of the tension bar along the predetermined axis is changed according to a winding mode of the winding unit.
Claims11
A printing apparatus, comprising:
- a transport unit configured to transport a medium;
- a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium;
- a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium;
- and
- a control unit configured to control the tension applying unit, wherein
- the tension applying unit is configured so that the rod member moves along a predetermined axis as at least one of the transport unit and the winding unit is driven to transport the medium,
- an upper limit position of a movement of the rod member along the predetermined axis is changed according to a winding mode of the winding unit,
- the winding mode includes an inwardly wound mode and an outwardly wound mode, and
- the control unit is further configured to:
- acquire the winding mode of the winding unit, and
- control the tension apply unit based on the acquired winding mode so that an upper limit position of the rod member, when the winding mode is the inwardly wound mode, is higher than an upper limit position of the rod member when the winding mode is the outwardly wound mode.
A printing apparatus, comprising:
- a transport unit configured to transport a medium;
- a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium;
- a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium;
- and
- a control unit configured to control the tension applying unit, wherein
- the tension applying unit is configured so that the rod member moves along a predetermined axis as at least one of the transport unit and the winding unit is driven to transport the medium, and
- an upper limit position of a movement along the predetermined axis of the rod member is changed according to a diameter of the medium wound around the winding unit,
- the diameter increases from a first diameter to a second diameter that is larger than the first diameter by being wound by the winding unit,
- the control unit is further configured to:
- acquire a diameter of a roll body formed by the winding unit, and
- control the tension applying unit based on the acquired diameter so that an upper limit position of the rod member when the diameter is the second diameter is lower than an upper limit position of the rod member when the diameter is the first diameter.
A printing apparatus, comprising:
- a transport unit configured to transport a medium;
- a winding unit disposed downstream, in a transport direction, of the transport unit, the winding unit being configured to wind the medium;
- a tension applying unit including a rod member biased toward the medium between the transport unit and the winding unit, the rod member being for applying a tension to the medium, and
- a control unit configured to control the tension applying unit, wherein
- the tension applying unit is configured so that the rod member moves along a predetermined axis as at least one of the transport unit and the winding unit is driven to transport the medium, and
- the control unit is further configured to:
- acquire a diameter of a roll body formed by the winding unit, and
- control the tension applying unit so that an upper limit position of a movement along the predetermined axis of the rod member is changed according to the diameter.
Dependencies are inferred from the claim text.