JPH09254477A - Desk top printer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize the case, besides, confirm the feeding condition of paper. SOLUTION: The printer is made such that a recess 11 being opened with its upper part is formed on the upper surface of a case 10 for housing a printing means therein, a paper feeding slit 13 is made at the endmost part of the recess 11, the side walls 11c defining the recess 11 are utilized to be a paper guide, an L-shaped guide piece 16 to be connected to the recess 11 is rendered detachable with respect to the case 10, and the guide piece 16 is joined to the case 10 to be employed as a feeding guide of continuous paper.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a desktop printer, and more particularly to a desktop printer advantageous for fanfold paper.

[0002]

2. Description of the Related Art A desktop printer has a printing means such as a platen roller and a thermal printer provided therein.
Then, the paper supplied from the paper supply port is printed by the printing means and is discharged to the outside from the paper discharge port.

[0003]

By the way, since the paper has to be fed to the printing means in a correct posture, it is preferable that the guide of the paper has a length longer than the length of the paper to be fed. However, when the guide is arranged inside the case, the case becomes large. Further, when the guide is installed in the case, it is not possible to confirm the state of the paper, and it is not possible to quickly respond.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a desk-top type printer in which the case can be made compact and the paper supply state can be confirmed.

[0005]

In order to achieve the above-mentioned object, the present invention forms a concave portion opened at an upper end and one end on a top surface of a case for accommodating a printing means therein, and a paper traveling direction of the concave portion. A paper feed port is formed at the rear end, and a side wall defining the recess is used as a paper guide.

According to the present invention, since the paper is guided by the recess formed on the upper surface of the case, no trouble such as meandering occurs when the paper is fed. Further, since the feeding state of the sheet can be visually confirmed, it is possible to promptly deal with any abnormality.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of a desktop printer according to the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a diagram showing the appearance of a desktop printer.
In this desktop printer, a recess 11 is formed on the upper surface of the case 10. The recess 11 serves as a guide for the continuous paper A such as fanfold paper and also serves as an outer cover of the case, and is open at the upper end and one end. A plurality of ridges 12 are formed on the bottom surface 11a of the recess 11 in order to reduce the contact surface with the continuous paper A and facilitate the running of the continuous paper. In addition, the rear end 11 that defines the end surface of the recess 11
A supply port 13 for continuous paper A is formed at the lower end of b.

A hole 14 is formed in the side wall 11c of the recess 11.
Is formed, and both ends of the sheet pressing metal fitting 15 are fitted into the hole 14. The sheet pressing fitting 15 has an intermediate portion bent to the upstream side in the sheet feeding direction and a center bent upward. This paper pressing member 15 is capable of pivoting upward with a hole 14 formed in the side wall 11c as a fulcrum by holding a substantially U-shaped tip portion, and an intermediate portion thereof has a bottom surface 11a of the recess 11.
Contact

The paper-pressing member 15 may have another shape such as a U-shape. Furthermore, in this desktop printer, the L-shaped guide piece 16 is detachable. On the surface of the guide piece 16, a plurality of convex stripes 1 are provided so as to correspond to the convex stripes 12 formed on the bottom surface 11a, reduce the contact surface with the continuous paper A, and facilitate the running of the continuous paper.
7 are formed.

As shown in FIG. 2, the open end of the recess 11 is
A step 18 that is lower than the bottom surface 11a is formed.
A pair of holes 19 are formed at the corners of the step 18 across the horizontal surface 18a and the vertical surface 18b of the step 18, and a pair of holes 21 are formed on the horizontal surface 18a apart from the holes 19. on the other hand,
A pair of convex pieces 20 corresponding to the holes 19 are formed on the end surface 16 a of the guide piece 16, and the lower surface 1 of the guide piece 16 is formed.
A pair of claws 22 corresponding to the holes 21 are formed in 6b.

The locking means of the guide piece 16 is a pair of holes 19 and 21 formed in the step 18, and these holes 19 and 21.
The pair of convex pieces 20 and the claws 22 formed on the guide piece 16 corresponding to the above. The other end of the locking means of the guide piece 16 is a free end. And the guide piece 16
Is locked to the case 10 by inserting the protruding piece 20 into the hole 19 from diagonally above and then dropping the claw 22 into the hole 21.

As shown in FIG. 3, the guide piece 16 locked in this manner has its surface flush with the bottom surface 11a of the recess 11 of the case 10, and the case 22 is provided with the claw 22.
The departure from 0 is prevented. Then, the moment force due to the gravity of the guide piece 16 is surely held in the case 10. This desktop printer, as shown in FIG.
The continuous paper A, for example, fanfold paper, is used as the guide piece 16
Placed at the left end of the paper, and the leading end of the paper passes through the recess 11 and the paper supply port 1
3 is inserted into the case 10. Then, the continuous paper A is the platen roller 23 in the case 10 shown in FIG.
The print is performed by the thermal head 24 between the sheet and the thermal head 24, and the sheet is discharged from the sheet discharge port 25 of the case 10 to the outside.

As a result, since the continuous paper A is guided by the bottom surface 11a and the side wall 11c of the concave portion 11 formed on the upper surface of the case 10, no trouble such as meandering occurs when the continuous paper A is fed. Therefore, the continuous paper A is supplied to the supply port 1
It is possible to correctly feed from 3 to the printing section in the case 10. The bottom surface 11a also serves as an upper cover of the printer case 10.

Further, since the feeding state of the continuous paper A can be visually confirmed, it is possible to promptly deal with any abnormality.
Therefore, trouble can be prevented. Further, since the continuous paper A guided by the recess 11 is lightly pressed onto the bottom surface 11a of the recess 11 by the paper pressing fitting 15 and is stably positioned, a trouble in supplying the continuous paper A can occur. Can be reduced.

Further, since the guide piece 16 is provided, when fanfold paper is used as the continuous paper A, the continuous paper A can be reliably guided to the recess 11 of the case 10, which is extremely advantageous. is there. Furthermore, the guide piece 1
Insert the convex piece 20 of 6 into the hole 19 formed at the corner of the step,
Since the claw 22 of the guide piece 16 may be dropped into the hole 21 formed in the horizontal plane of the step and the guide piece 16 may be locked to the case 10, the guide piece 16 can be easily attached to and detached from the case 10.

Furthermore, since the recess 11 of the case 10 is used as a paper guide, the apparatus can be made much more compact than when a guide is formed in the case. The desk-top printer of the present invention can also supply a single sheet by removing the L-shaped guide piece 16 from the case 10.

[0017]

As described above, according to the desk-top type printer of the present invention, the paper is guided by the concave portion formed on the upper surface of the case, so that the paper supply state can be visually checked. As a result, if there is an abnormality in the feeding state of the paper, it is possible to promptly deal with it, and trouble can be prevented.

Further, since the case itself is used as a guide for the paper, the apparatus can be made significantly compact as compared with the case where the guide is formed in the case. Furthermore, since the L-shaped guide piece can be attached to the case so as to be connected to the recess formed as the paper guide surface of the case, it is particularly effective for guiding the supply of continuous paper such as fanfold paper. .

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a desktop printer according to the present invention.

FIG. 2 is a perspective view of an essential part showing a locking means for mounting the guide piece of the desktop printer according to the present invention to the case.

FIG. 3 is a sectional view conceptually showing a desktop printer according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Case 11 ... Recess 11a ... Bottom 11b ... Back end 11c ... Side wall 13 ... Paper supply port 15 ... Paper pressing metal fitting 16 ... Guide piece 18 ... Step 19 ... Hole 20 ... Convex piece (19, 20) ... Locking means 21 ... Hole 22 ... Claw (21, 22) ... Locking means 23 ... Platen roller 24 ... Thermal head 25 ... Paper discharge port A ... Continuous paper

Claims (4)

[Claims] Claims: 1. A case is formed on the upper surface of a case for accommodating a printing means therein, and a concave section is formed at one end of the concave section. A desktop printer whose side wall is a guide for the paper. 2. An end portion of a paper pressing metal fitting is rotatably supported on the side wall, and the weight of the paper pressing metal fitting presses the paper supplied to the concave portion against the bottom surface of the concave portion. The desktop printer according to claim 1, wherein the desktop printer is a printer. 3. A substantially L-shaped guide piece, one end of which is locked to one end of the recess and the other end of which is a free end, is detachably attached to the case. The listed desktop printer. 4. A step is formed at the open end of the recess, a hole is formed at a corner of the step in the sheet running direction, a hole is formed in a horizontal surface of the step, and a convex piece is formed on one end surface of the guide piece. To form a claw on the back surface of the guide piece, insert the convex piece of the guide piece into the hole formed in the corner of the step, and form the claw of the guide piece on the horizontal surface of the step. The desktop printer according to claim 3, wherein the guide piece is locked in the case by dropping the guide piece into the case.