Ticket printer

Abstract

A document printing device includes a housing, a first drive roller module, a second drive roller module, a third drive roller module, a printing module, a cutting module, and a detection module. The housing includes a first document conveying opening, a second document conveying opening, a third document conveying opening, a document conveying space, and a document temporary storage space. Any combination of the first, second, and third drive roller modules rotates to convey documents from the first document conveying opening to the second document conveying opening and / or into the document temporary storage space via a conveying inlet, or documents from the second document conveying opening into the document temporary storage space via the conveying inlet, with documents entering the document temporary storage space returning to the document conveying space or being conveyed to the third document conveying opening.

Claims

1. A document printing apparatus for printing a document, the document printing apparatus comprising: A housing includes a first document conveying opening, a second document conveying opening, and a third document conveying opening. The housing further includes a document conveying space and a document storage space. The first and second document conveying openings are connected to the document conveying space, and the third document conveying opening is connected to the document storage space via a conveying inlet. A first drive roller module is disposed in the document conveying space and near the first document conveying opening. A second drive roller module is disposed in the document conveying space and corresponds to the document storage space, and is disposed near the conveying inlet. A third drive roller module is disposed in the document conveying space and near the second document conveying opening. A printing module is disposed in the document conveying space and configured to print the document. A cutting module is disposed in the document conveying space and configured to cut the document, the cutting module being farther away from the first document conveying opening than the printing module; and a detection module is disposed near the second document conveying opening and configured to detect the document; wherein the second drive roller module is located between the first drive roller module and the third drive roller module; wherein any combination of the first drive roller module, the second drive roller module and the third drive roller module can selectively rotate in the same or opposite directions and can selectively rotate synchronously or asynchronously, so that the document is conveyed from the first document conveying opening to the second document conveying opening and / or enters the document temporary storage space through the conveying inlet, or the document is conveyed from the second document conveying opening through the conveying inlet into the document temporary storage space, and the document entering the document temporary storage space returns to the document conveying space from the conveying inlet or is conveyed to the third document conveying opening; The second drive roller module includes two rollers. One roller is connected to a motor and serves as a drive roller, while the other roller is a driven roller that presses the ticket onto the drive roller. The rotation of the two rollers causes the ticket to be transported within the ticket transport space or to enter the ticket storage space through the transport inlet.

2. The document printing apparatus as claimed in claim 1, wherein the second drive roller module near the opposite sides of the first drive roller module and the third drive roller module respectively forms a gap with the opposite ends of the conveying inlet near the first drive roller module and the third drive roller module for the document to move through.

3. The document printing apparatus as claimed in claim 1, wherein the first drive roller module, the second drive roller module and the third drive roller module rotate in the same direction to transport the document from the first document conveying opening to the second document conveying opening along a conveying path, and the printing module prints the document.

4. The document printing apparatus as claimed in claim 3, wherein when the detection module detects the document, the third drive roller module stops rotating and clamps the document, and the document enters the document storage space through the conveying inlet; when the printing module completes printing, the cutting module cuts the document.

5. The document printing apparatus as claimed in claim 4, wherein the second drive roller module and the third drive roller module rotate in the same direction, causing the document to leave the housing via the second document conveying opening.

6. The document printing apparatus as claimed in claim 4, wherein the second drive roller module and the third drive roller module rotate in opposite directions, causing the document to enter the document storage space through the conveying inlet and exit the housing through the third document conveying opening.

7. The document printing apparatus as claimed in claim 3, wherein when the detection module detects the document, the third drive roller module continues to rotate, causing the document to leave the housing through the second document conveying opening.

8. The document printing apparatus as claimed in claim 1, wherein the second drive roller module and the third drive roller module rotate in opposite directions, causing the document to enter the document storage space from the second document conveying opening through the conveying inlet.

9. The document printing apparatus as claimed in claim 1, wherein the first drive roller module and the second drive roller module rotate in the same direction, causing the document to enter the document storage space from the first document conveying opening through the conveying inlet, and the printing module prints the document, and when the printing module finishes printing, the cutting module cuts the document.

10. The ticket printing apparatus as claimed in claim 8 or 9, wherein the ticket entering the ticket storage space exits the housing via the third ticket delivery opening.

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