Transporting device, image reading device, method and program storage medium

1. A transporting device comprising:

a transport unit that transports a document placed on a document tray;

a detector that detects a width of the document placed on the document tray;

a controller that controls the transport unit so as to transport the document when the width of the document detected by the detector is a predetermined fixed size, and prohibits the transport unit from transporting the document when the width of the document is a predetermined size that is different from the fixed size; and

a cancellation unit that cancels the prohibition of document transportation imposed by the controller; and,

wherein the predetermined size that is different from the fixed size is stored in a memory before the transporting of the document is prohibited.

2. The transporting device of claim 1 , further comprising

a pair of guide units that guides the document when the document placed on the document tray is transported by the transport unit, at least one of the guides being movable in a width direction of the document placed on the document tray,

wherein the detector detects a position of the at least one of the guides.

3. The transporting device of claim 1 , further comprising a notifying unit,

wherein the controller controls the notifying unit to transmit at least one of a notification that the document is being transported, a notification that transportation of the document is prohibited, or a notification that the width of the document detected by the detector is the predetermined fixed size.

4. The transporting device of claim 1 , wherein the predetermined fixed size is 210 mm or 8.5 inches.

5. The transporting device of claim 1 , wherein the controller causes the transport unit to transport the document when the width of the document detected by the detector is a predetermined size different from the fixed size, after the cancellation unit cancels the prohibition of document transportation.

6. An image reading device comprising:

the transporting device of claim 1 ; and

an acquisition unit that reads an image formed on a document being transported by the transporting device, and acquires image data for the image.

7. A method for controlling a transporting device that detects a width of a document placed on a document tray and transports the document, the method comprising:

causing the transporting device to transport the document when the width of the document is a predetermined fixed size, and to prohibit transportation of the document by the transporting device when the width of the document is a predetermined size different from the fixed size; and

canceling the prohibition of the document transportation; and,

wherein the predetermined size that is different from the fixed size is stored in a memory before the transporting of the document is prohibited.

8. The method of claim 7 , wherein the predetermined fixed size is 210 mm or 8.5 inches.

9. The method of claim 7 further comprising:

transporting, by the transporting device, the document when the width of the document is a predetermined size different from the fixed size, after the canceling of the prohibition of document transportation.

10. A computer-readable storage medium that stores a program for controlling a transporting device that detects a width of a document placed on a document tray and transports the document, the controlling including:

causing the transporting device to transport the document when the width of the document is a predetermined fixed size, and to prohibit transportation of the document by the transporting device when the width of the document is a predetermined size different from the fixed size; and

canceling the prohibition of the document transportation; and,

wherein the predetermined size that is different from the fixed size is stored in a memory before the transporting of the document is prohibited.

11. The computer-readable storage medium of claim 10 , wherein the predetermined fixed size is 210 mm or 8.5 inches.

12. The computer-readable storage medium of claim 10 , wherein the controlling further comprises:

transporting, by the transporting device, the document when the width of the document is a predetermined size different from the fixed size, after the canceling of the prohibition of document transportation.

13. The transporting device of claim 1 , wherein the detector detects the width of the document by detecting a position of the at least one of the guides.