Medium transporting apparatus and image reading apparatus
AssigneeSeiko Epson Corporation
InventorYoshihisa Saka
Life of this patent
Estimating the term…
Abstract
A medium transporting apparatus includes a first medium transport path in which a transport roller pair is provided, a second medium transport path for feeding a medium fed downstream in a medium transport direction from the transport roller pair to an upstream position of the transport roller pair in the first medium transport path, and a medium detection unit for detecting passage of a medium in the first medium transport path, in which a position at which the medium detection unit detects a medium is switched between a transport direction upstream position and a transport direction downstream position of the transport roller pair according to whether or not a medium is transported on the second medium transport path.
Claims10
A medium transporting apparatus comprising:
- a transport roller pair for nipping and transporting a medium;
- a first medium transport path in which the transport roller pair is provided;
- a second medium transport path for switching back a medium fed downstream in a medium transport direction from the transport roller pair and feeding the medium with a rear end as a front end to an upstream position of the transport roller pair in the first medium transport path;
- and
- a medium detection unit for detecting passage of a medium in the first medium transport path, wherein
- the medium detection unit includes:
- a first rotating portion having a first contact portion configured to make contact with a medium in the first medium transport path and rotating along with contact of a medium with the first contact portion and separation of a medium from the first contact portion;
- a second rotating portion having a second contact portion configured to make contact with a medium in the second medium transport path and rotating along with contact of a medium with the second contact portion and separation of a medium from the second contact portion;
- and
- a detection portion for detecting a detection target portion provided at the first rotating portion, and
- the first rotating portion is configured to make contact with the second rotating portion and is switched, by rotating according to rotation of the second rotating portion, between a first detection posture in which the first contact portion protrudes to the first medium transport path at a first position of the first medium transport path and
- a second detection posture in which the first contact portion protrudes to the first medium transport path at a second position downstream of the first position in a medium transport direction.
A medium transporting apparatus comprising:
- a transport roller pair for nipping and transporting a medium;
- a first medium transport path in which the transport roller pair is provided;
- a second medium transport path for switching back a medium fed downstream in a medium transport direction from the transport roller pair and feeding the medium with a rear end of the medium as a front end to an upstream position of the transport roller pair in the first medium transport path;
- and
- one medium detection unit for detecting passage of a medium in the first medium transport path, wherein
- a position at which the medium detection unit detects a medium is switched between a transport direction upstream position and a transport direction downstream position of the transport roller pair according to whether or not a medium is transported on the second medium transport path.
Dependencies are inferred from the claim text.