Printing apparatus

1. A printing apparatus comprising:

a mounting unit on which a printing-agent housing container and printing unit are able to be mounted, the printing-agent housing container internally containing a printing agent, the printing unit performing printing using the printing agent housed in the printing-agent housing container, the mounting unit enabling a scan in a main scan direction;

a detection section configured to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit;

a housing configured to internally store the mounting unit with the printing-agent housing container and the printing unit mounted thereon, the housing comprising an opening through which the printing-agent housing container mounted on the mounting unit is able to be opened to an exterior; and

a cover configured to be able to cover the opening, wherein when the cover is closed the detection section is able to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit, and when the cover is opened the detection section is able to move in a retracting direction from the opening;

the detection section is being movably attached to the housing in a biased manner with a cam member is attached to the cover, wherein when the cover is closed the detection section comes into abutting contact with the cam member to place the cam member at a position where the detection section is able to determine whether or not the printing-agent housing container is installed, and when the cover is opened the cam member is separated from the detection section and the detection section moves in the retracting direction from the opening in conjunction with movement of its cover.

2. The printing apparatus according to claim 1 , wherein the opening is formed above a sheet discharge section into which a printed print medium is discharged, and the detection section is attached to the cover.

3. The printing apparatus according to claim 2 , wherein the detection section is attached to an inner position on the cover.

4. The printing apparatus according to claim 1 , wherein the detection section is attached to the housing in a biased manner so as to be able to move pivotally, and

when the cover is opened, the cam member is separated from the detection section, and the detection section moves pivotally to move in the retracting direction from the opening.

5. A printing apparatus comprising:

a mounting unit on which a printing-agent housing container and printing unit are able to be mounted, the printing-agent housing container internally containing a printing agent, the printing unit performing printing using the printing agent housed in the printing-agent housing container, the mounting unit enabling a scan in a main scan direction;

a detection section configured to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit;

a housing configured to internally store the mounting unit with the printing-agent housing container and the printing unit mounted thereon, the housing comprising an opening through which the printing-agent housing container mounted on the mounting unit is able to be opened to an exterior; and

a cover configured to be able to cover the opening, wherein when the cover is closed the detection section is able to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit, and when the cover is opened the detection section is able to move in a retracting direction from the opening, wherein

the detection section comprises a magnetic-force generating unit for generating a magnetic force and a magnetic-force detection unit for detecting a magnetic force, and acquires information on whether or not the printing-agent housing container is mounted on the mounting unit based on the magnetic force detected by the magnetic-force detection unit.

6. A printing apparatus comprising:

a mounting unit on which a printing-agent housing container and printing unit are able to be mounted, the printing-agent housing container internally containing a printing agent, the printing unit performing printing using the printing agent housed in the printing-agent housing container, the mounting unit enabling a scan in a main scan direction;

a detection section configured to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit;

a housing configured to internally store the mounting unit with the printing-agent housing container and the printing unit mounted thereon, the housing comprising an opening through which the printing-agent housing container mounted on the mounting unit is able to be opened to an exterior; and

a cover configured to be able to cover the opening, wherein when the cover is closed the detection section is able to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit, and when the cover is opened the detection section is able to move in a retracting direction from the opening, wherein

the detection section comprises a generation unit for generating an electric wave or an electromagnetic wave and a reception unit for receiving the electric wave or electromagnetic wave emitted by the generation unit, and acquires information on whether or not the printing-agent housing container is mounted on the mounting unit based on the electric wave or an electromagnetic wave received by the reception unit.

7. A printing apparatus comprising:

a mounting unit on which a printing-agent housing container and printing unit are able to be mounted, the printing-agent housing container internally containing a printing agent, the printing unit performing printing using the printing agent housed in the printing-agent housing container, the mounting unit enabling a scan in a main scan direction;

a detection section configured to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit;

a housing configured to internally store the mounting unit with the printing-agent housing container and the printing unit mounted thereon, the housing comprising an opening through which the printing-agent housing container mounted on the mounting unit is able to be opened to an exterior;

a cover configured to be able to cover the opening, wherein when the cover is closed the detection section is able to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit, and when the cover is opened the detection section is able to move in a retracting direction from the opening

the detection unit comprising a light emitting unit and a light receiving unit, wherein one of the light emitting unit and the light receiving unit is attached to the printing-agent housing container or the mounting unit, and the other of the light emitting and receiving unit is attached to the housing or the cover.

8. A printing apparatus comprising:

a mounting unit on which a printing-agent housing container and printing unit are able to be mounted, the printing-agent housing container internally containing a printing agent, the printing unit performing printing using the printing agent housed in the printing-agent housing container, the mounting unit enabling a scan in a main scan direction;

a detection section configured to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit;

a housing configured to internally store the mounting unit with the printing-agent housing container and the printing unit mounted thereon, the housing comprising an opening through which the printing-agent housing container mounted on the mounting unit is able to be opened to an exterior;

a cover configured to be able to cover the opening, wherein when the cover is closed the detection section is able to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit, and when the cover is opened the detection section is able to move in a retracting direction from the opening, wherein the detection unit comprises a light emitting unit and a light receiving unit; and

the light receiving unit comprises a light guide through which light emitted by the light emitting unit passes and a light receiving element that receives light having passed through the light guide and enables detection of the light reception, wherein when the cover is opened, the light guide is able to move in the retracting direction from the opening.

9. A printing apparatus comprising:

a mounting unit on which a printing-agent housing container and printing unit are able to be mounted, the printing-agent housing container internally containing a printing agent, the printing unit performing printing using the printing agent housed in the printing-agent housing container, the mounting unit enabling a scan in a main scan direction;

a detection section configured to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit;

a housing configured to internally store the mounting unit with the printing-agent housing container and the printing unit mounted thereon, the housing comprising an opening through which the printing-agent housing container mounted on the mounting unit is able to be opened to an exterior;

a cover configured to be able to cover the opening, wherein when the cover is closed the detection section is able to acquire information on whether or not the printing-agent housing container is mounted on the mounting unit, and when the cover is opened the detection section is able to move in a retracting direction from the opening

a light emission detection unit for enabling detection of light emission when the light emitting unit emits light; and

a position detection unit for determining whether or not the printing-agent housing container is located at a predetermined position along the main scan direction, wherein

the detection unit comprises light emitting unit and light receiving unit, and

an open/close status of the cover is determined based on a presence or absence of light reception by the light receiving unit, a detection result from the light emission detection unit and a detection result from the position detection unit.