JP2879591B2 - Printer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a paper feeder in a printer.

[Conventional technology]

Conventionally, a printer having a printing mechanism for printing the printing paper 1 wound in a roll and the printing paper in a card form is provided with a guide plate 20 at the discharge portion of the printing paper 1 as shown in FIG.
In order to guide the roll-shaped printing paper to a predetermined position and also to print a limited number of printing lines on the card-shaped printing paper 11, insert the card-shaped printing paper 11 into the guide plate 20 from above and push the guide plate 20 It was rotated, inserted up to the stopper 14, and printed.

[Problems to be solved by the invention]

However, in such a paper feeding device, in order to increase the number of printing lines on the card-shaped printing paper, if the card-shaped printing paper is inserted into the printing unit from below and discharged upward, the card-shaped printing paper becomes paper-free. There was a drawback that the guide was caught and could not be discharged.

Also, when removing the ink ribbon, the ribbon is caught by the paper guide, making it difficult to remove the ink ribbon.

Therefore, in the present invention, when inserting the card-shaped printing paper into the printing unit from below and ejecting it upward, or even when removing the ink ribbon, the card-shaped printing paper and the ribbon are prevented from being caught on the paper guide. Aim.

[Means for solving the problem]

In order to solve the above problems, the present invention provides a first transport path for roll-shaped printing paper, a second transport path for other printing paper, and a guide for the roll-shaped printing paper to the first transport path. And a paper guide lever that can contact the roll-shaped recording paper downstream of the leading guide, wherein the leading guide interrupts the second transport path and the paper guide lever is in the first transport position. A paper guide movable to a first position for blocking the path, and a second position for the paper guide lever to retreat from the second transport path and the paper guide lever to open the first transport path; The paper guide is located at the first position when the roll-shaped printing paper is not in the first transport path, and when the roll-shaped printing paper is transported, the end in the transport direction of the roll-shaped printing paper contacts the paper guide lever. It is characterized by being moved to the second position upon contact.

Further, the paper guide section is urged by an urging member to be in the first position.

Further, the paper guide section is characterized in that the leading end guide section is on the ribbon attaching / detaching path when the ink ribbon is attached / detached in the first position, and retracts from the ribbon attaching / detaching path in the second position.

Still further, the printer is characterized in that a paper feeder for conveying the roll-shaped printing paper is arranged between the leading end guide and the paper guide lever.

[Action]

When the roll-shaped printing paper is set in a printable state, the roll-shaped printing paper is sent out between the platen and the paper holding plate by the rotation of the sub-paper feeding roller. And the print head is sent to a paper guide. Next, the roll-shaped printing paper is guided by the paper guide so as to be sandwiched between the paper feed roller and the paper feed pushing roller, and further, the roll-shaped printing paper lifts the paper guide lever portion, so that the leading end of the paper guide is a platen. To secure the path of the card-shaped printing paper. Accordingly, a path for inserting the card-shaped printing paper from below and discharging it upward and a path for removing the ink ribbon can be secured when the roll-shaped printing paper is set, and the object of the invention can be achieved.

〔Example〕

 An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a side sectional view in which a printing paper wound in a roll shape inserted from a supply side is guided by a paper guide.

FIG. 2 is a side sectional view showing a state in which the roll-shaped printing paper is set in a printable state and printing is performed on the card-shaped printing paper.

The sub-paper feed roller 2 sandwiches the roll-shaped printing paper 1 with the sub-paper feed pressing roller 3 and feeds it to the platen 5.
The paper press plate 4 functions to press the printing paper 1 onto the platen 5. The paper guide 6 is rotatably mounted on the shaft of the paper feed push roller 7. A spring is incorporated in the paper guide 6, and is open when the roll-shaped printing paper 1 is not set in a printing state. That is, the paper guide lever 9 of the paper guide 6 is positioned so as to intersect the paper path of the roll-shaped printing paper 1. (FIG. 1) Hereinafter, the operation will be described. In FIG. 1, in order to set the roll-shaped printing paper 1 in a printing state, the roll-shaped printing paper 1 is sandwiched between the sub-paper feeding roller 2 and the sub-paper feeding pressing roller 3 in the direction of arrow A, Due to the rotation of the sub-paper feed roller 2, the roll-shaped printing paper 1 passes between the paper holding plate 4 and the platen 5 and abuts the paper guide 6 after passing between the print head 10 and the platen. The sheet is guided toward the pressing roller 7 and is sandwiched between the paper feed roller 8 and the paper pressing roller 7. Further, the roll-shaped printing paper 1 is discharged by the rotation of the paper feed roller 8, and the paper guide lever 9 of the paper guide 6 is lifted by the roll-shaped printing paper 1 as shown in FIG. It can be rotated in the direction of arrow C, pressed against the platen side, and the path switching operation between the roll-shaped printing paper and the card-shaped printing paper can be performed.

Therefore, even if the card-shaped printing paper 11 is inserted from between the upper and lower guide plates from the arrow D and is ejected in the vertical direction (arrow E) by the card-shaped medium feeding roller 17 and the card-shaped medium pressing roller 18, the paper guide 6 can be used. It is needless to say that printing can be performed smoothly even if the number of printing lines is increased without being caught.

In addition, although the case where the paper guide is rotated by the roll-shaped printing paper and the path between the roll-shaped printing paper and the card-shaped printing paper is switched has been described as an example, the detector is installed in the paper path, and the roll-shaped printing paper is moved. It goes without saying that the same effect can be obtained even if the paper guide is detected after being guided to the paper guide and the path is switched by a motor or an electromagnet.

〔The invention's effect〕

According to the present invention, as described above, after the printing paper wound in a roll shape is guided by the paper guide, the paper ejection path is switched, so that the card-shaped printing paper is not caught by the paper guide. , The number of printing lines can be increased.
Further, since the ribbon of the ink ribbon does not catch on the paper guide, the attachment and detachment of the ink ribbon can be performed smoothly. Further, since the paper feed portion is disposed near the paper guide lever, the rigidity of the roll-shaped recording paper of the paper feed portion and the paper guide lever portion is large, so that the paper guide can be reliably moved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view showing one embodiment of the present invention. FIG. 2 is a sectional view showing a state in which a card-shaped medium according to an embodiment of the present invention is printed. FIG. 3 is a cross-sectional view showing a state in which printing paper of a conventional technique is set. 1 ... Rolled printing paper 4 ... Paper holding plate 5 ... Platen 6 ... Paper guide 7 ... Paper feed / press roller 9 ... Paper guide lever section 10 ... Print head 12 ... Guide plate (upper) 13 …… Guide plate (bottom)

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Shuichi Ueda 347 Hino, Hino-shi, Tokyo Orient Watch Co., Ltd. Hino Factory (56) References JP-A-48-62433 (JP, A) JP-A-49-110353 (JP, A) (58) Field surveyed (Int. Cl. ⁶ , DB name) B65H 20/00 B41J 15/04

Claims (4)

(57) [Claims] 1. A printer configured to be able to print on a roll print sheet and another print sheet by a print unit having one print head, wherein: a first transport path for the roll print sheet; A second conveyance path for printing paper, a leading end guide for guiding the rolled printing paper to the first conveyance path, and a contactable portion of the rolled recording paper downstream of the leading end guide. A first position at which the leading end guide section interrupts the second transport path and the paper guide lever interrupts the first transport path; and wherein the distal end guide section is the second position. A paper guide that is retracted from the paper path and is movable to a second position in which the paper guide lever opens the first paper path. Is located at the first position when not in the transport path of Wherein the end portion of the roll-shaped print sheet in the transfer direction is moved to the second position by contacting a paper guide lever when the roll-shaped print sheet is transferred. 2. The printer according to claim 1, wherein the paper guide is urged by an urging member so as to be in the first position. 3. The paper guide section according to claim 1, wherein the leading end guide section is on a ribbon attaching / detaching path when the ink ribbon is attached / detached in a first position, and retreats from the ribbon attaching / detaching path in a second position. 3. The printer according to claim 1, wherein 4. The printer according to claim 1, wherein a paper feeder for conveying the roll-shaped printing paper is disposed between the leading end and the paper guide lever.