JP2992874B2 - Printer for long recording media - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printer for a tape-shaped long recording medium such as a terminal board nameplate or a label tape, and more particularly, to an improvement in technology for preventing a long recording medium from floating at a printing position. About.

[0002]

2. Description of the Related Art The prior art will be described in detail with reference to FIGS. 1 is a thermal print head (hereinafter referred to as a print head), 2 is a tape-shaped long recording medium (hereinafter referred to as a recording medium) such as a terminal plate nameplate or a label tape, 3 is a roller-shaped platen, 4 is a guide , 5 (FIG. 2
Is a recording medium transport roller (hereinafter, referred to as a transport roller), and 6 is an idle roller. The idle roller 6 is configured as a pair with the transport roller 5, and the transport roller 5 and the idle roller 6 form a recording medium. The thermal print head 1 and the platen 3
The feed roller 5 and the idle roller 6 are provided vertically, respectively.
With the plane of the recording medium 2 being vertical,
Sending and printing. Reference numeral 7 denotes a lower guide that forms a lower portion of the conveyance path of the recording medium 2.
, An upstream guide surface 7a on the upstream side of the transport path 8 and a downstream guide surface 7b on the downstream side are formed. Also,
Above the upstream guide surface 7a, the upper guide 9 are formed on the guide surface 9a provided to be urged downwardly, the lower
Of the recording medium 2 together with the guide 7 from above and below the recording medium 2
Guides and regulates transport.

In order to reduce the size of the printer, the length B of the upstream guide surface 7a and the length C of the upper guide surface 9a are reduced, and the recording medium 2 is inserted between the upstream guide surface 7a and the upper guide surface 9a. Then, when the recording medium 2 is moved between the print head 1 and the platen 3 by the rotation of the conveying roller 5 and the recording medium 2 is moved between the conveying roller 5 and the idle roller 6, as shown in FIG. Due to the weight in the direction, the printing portion 2a of the recording medium 2 floats upward with the upstream guide surface 7a as a fulcrum,
Since printing is performed at this position, the printing is inclined with respect to the recording medium 2 as shown in FIG.

As shown in FIG. 5, an upstream guide surface 7a
If the length B and the length C of the upper guide surface 9a are increased, the recording medium 2 can be prevented from floating at the position of the print head 1, but there is a problem that the printer becomes large. Even if a member for guiding the lower surface of the recording medium 2 is provided outside the recording medium insertion opening 11 of the printer body 10 (shown in FIG. 2), the size of the printer is similarly increased. In the vicinity of the print head 1, it is difficult to press the recording medium 2 due to the presence of the ribbon guide 3 and the transport roller 5.

If a member for guiding the upper surface of the recording medium 2 is provided downstream of the print head 1 in the transport path 8, it becomes difficult to remove the recording medium 2 when the recording medium 2 is jammed. A member for guiding the upper surface of the recording medium 2 is not provided downstream of the print head 1.

[0006]

SUMMARY OF THE INVENTION It is an object of the present invention to prevent floating of a recording medium at a printing position while keeping the size of a printer small, and to secure printing quality.

[0007]

The plane of the recording medium [SUMMARY OF] to the vertical, the long recording medium for a printer which transports horizontally conveying the elongated recording medium in the conveying direction upstream side of the print head
A pair of upper and lower guides that regulate the vertical direction of the
On the upstream side in the transport direction
It is provided movably below and from the conveyance surface of the lower guide.
Prevention of lifting urged upward to protrude upward
And means .

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS On a transport path 8 through which a recording medium 2 passes
Means to keep the recording medium 2 horizontal.
Print with the print head.

[0009]

1 and 2 show an embodiment of the present invention.
FIG. 2 is a front view when preventing the floating of the recording medium 2;
Is a plan view. Hereinafter, the same components as those of the conventional example are denoted by the same reference numerals and have the same configuration.

[0010] In FIG. 1, 12 and the elastic body made of a spring plate, with the elastic body 12 is fixed by screws 13 to the lower guide 7 Rukoto, curved 12 at the tip portion
a is swingable in the vertical direction, and the upstream guide surface 7a is
Outside and inside the printer body 10,
It protrudes upward from the surface 7a. Therefore,
The curved surface 12a urges the recording medium 2 in the transport path upward with the upper guide surface 9a as a fulcrum, thereby keeping the position of the printing surface 2a of the recording medium 2 horizontal.

The elastic member 12 can be embodied in the same manner by biasing the elastic member 12 with rubber, a solenoid, or the like instead of a spring plate.

Reference numeral 14 denotes an ink ribbon, and reference numeral 15 denotes a ribbon cassette.

[0014]

As described above, in a printer for a long recording medium in which the plane of the recording medium is made vertical and conveyed in the horizontal direction, the lifting prevention means for preventing the recording medium from floating at the printing position is conveyed. Since it is provided further upstream of a pair of upper and lower guides provided upstream from the print head of the road,
While the size of the printer is kept small, it is possible to prevent the recording medium from floating at the printing position, and to secure the printing quality without inclining the printing with respect to the recording medium.

[Brief description of the drawings]

FIG. 1 is a front view of a recording medium 2 according to the present invention when it is prevented from floating.

FIG. 2 is a plan view of the present invention.

FIG. 3 is a front view for explaining a conventional technique.

FIG. 4 shows an example of printing on a recording medium according to the related art.

FIG. 5 is a front view for explaining a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Print head 2 Recording medium 3 Platen 4 Ribbon guide 5 Conveying roller 6 Idle roller 7 Lower guide which forms the lower part of a conveying path 8 Conveying path 9 Upper guide 10 Printer main body 11 Recording medium insertion port 12 Means for preventing floating of recording medium ( Elastic body) 13 screw

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) B41J 3/36 B41J 5/30 B41J 15/04

Claims (1)

(57) [Claims] 1. A is vertical to the plane of the long recording medium in a printer for a long recording medium for conveying horizontally, printing F
Up and down direction of transport of long recording medium
Upper and lower guides that regulate
Moves up and down with respect to the conveying surface of the lower guide on the upstream side.
And protrudes above the transport surface of the lower guide
A printing device for a long recording medium, comprising: a lifting prevention means urged upwardly to make the printing head longer.