JPH08300740A - Portable printer - Google Patents

Abstract

PURPOSE: To prevent malfunction of a circuit board caused by intrusion of rainwater in using it outdoors. CONSTITUTION: A circuit board 31 having a control section for controlling printing and action in the printing is arranged at an upper part of recording paper discharge openings 17 and 19 so as to provide it inside a printer body 1, so that rainwater does not splashes the circuit board 31 even when rain intrude from the recording paper discharge openings 17 and 19.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION This invention relates to portable printers.

[0002]

2. Description of the Related Art In a conventional printer, a circuit board for controlling the operation of a printing mechanism, a paper transport mechanism, etc. is a main frame that holds these printing mechanism and paper transport mechanism, and a base orthogonal to this main frame. It is often arranged along the line. In such a structure, at least a part of the circuit board is located in the same plane as or lower than the horizontal plane passing through the recording paper discharge port for discharging the printed recording paper.

On the other hand, the recent popularization rate of printers is remarkable, and they are used in various fields. In addition, there are various usage forms, and there is one such as a portable printer which a person carries and uses. In such a portable printer, for example, when a courier service picks up an article, there is a use example in which data relating to the article is input and printed out.

[0004]

In the use example described above,
Includes examples of outdoor use. Therefore, on a rainy day, rain that has entered from the recording paper discharge port comes into contact with the circuit board, causing a short circuit accident.

[0005]

SUMMARY OF THE INVENTION According to the present invention, there is provided a printer main body having a conveying passage for conveying a recording sheet and a print head disposed in the conveying passage, and a printer main body connected to the conveying passage. A recording paper discharge port formed on a side surface, and a circuit board that has a control unit that controls printing and operations associated with printing and that is arranged above the recording paper discharge port and provided inside the printer body. It is a portable printer.

[0006]

Since the circuit board is provided above the recording paper discharge port of the main body and provided inside the printer main body, even if rain enters from the recording paper discharge port, it does not hit the circuit board.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a printer main body. The printer body 1 is composed of a case 2 whose one surface is open, and a cover 3 which opens and closes the open surface of the case 2. The cover 3 is rotatably held by a fulcrum shaft 4. As shown in FIG. 2, the case 2 is formed with a hopper 6 for rotatably storing the long paper 5 wound in a roll shape. In this embodiment, the long paper 5 is a backing paper 5a to which a number of labels 5b are attached at equal intervals. Further, the case 2 is provided with a paper guide 7 as a transport passage extending from the bottom of the hopper 6 toward the cover 3 side.
In the part near the cover 3 of the
A label peeling body 9 is arranged along the longitudinal direction of the platen 8. Further, the printer body 1 has a battery 1
0 is detachably provided.

On the head support 11 fixed to the inner surface of the cover 3, a thermal head 12 which is a print head is biased in one direction by a leaf spring 13 and rotatably held around a support shaft 14. ing. Further, the platen 8 is provided on both sides of the cover 3 on the free end side by the urging force of the spring 15.
A pinch roller 16 pressed against is rotatably provided. Further, the cover 3 is provided with a label discharge port 17 disposed between the thermal head 12 and the pinch roller 16 for discharging the label 5b, and a paper retainer 18 for pressing the floating of the long paper 5 in the hopper 6. Are formed. The case 2 is formed with a mount discharge port 19 for discharging the mount 5a between the cover 2 and the free end of the cover 3. Although not shown, the cover 3 projects from both sides of the case 2
There are provided locking claws that are locked on both sides of the opening surface, and operation knobs that retract these locking claws inward.

Next, as shown in FIGS. 1, 3 and 4, a power switch 20, a feed key 21 for issuing a label issuance, and the battery 10 are provided on the upper surface of the case 2.
A lid 22 is provided for opening and closing when exchanging, and a terminal receiver 23 is formed integrally for detachably holding a handy terminal (not shown). The terminal receiver 23 is inclined downward as it goes to the cover 3 side and surrounds the end of the handy terminal.
4 and two substantially conical bosses 25 and 26 arranged inside the frame 24. A drainage groove 24a is formed on one side of the frame 24 on the lower side in the inclination direction. Further, a light receiving window 27 is provided inside the frame 24, and an optical interface (not shown) for receiving an optical signal as print data emitted from the handy terminal is provided below the light receiving window 27. ing. The light receiving window 27
Has the function of a filter that passes only light of a specific frequency.

Further, as shown in FIG. 3, an arc surface 28 is formed on one surface of the printer body 1 opposite to the cover 3, and the arc surface 28 is in close contact with the waist of the operator.
There are formed a slip stopper 29 for reducing slip on the operator's clothes, and a belt hook 30 facing the slip stopper 29 and hooked on the operator's belt.

Next, the structure of the case 2 of the printer body 1 is shown in FIG. This case 2 includes a hopper 6 and a paper guide 7.
A main case 2a having an open surface and end frames 2 assembled at the upper and lower ends of the main case 2a.
b and 2c. In the main case 2a,
Recesses 2e for attaching support members (not shown) that support both ends of the platen 8 and the label peeling body 9
And a fulcrum shaft 4 for rotatably supporting the cover 3.
And a storage chamber 2e for storing the battery 10, and a plurality of studs 32 for holding the circuit board 31 are provided upright on the upper surface covered by the upper end frame 2b. This circuit board 31 is used for the thermal head 12.
And a control unit (not shown) that controls the operation of a motor (not shown) that drives the platen 8.

The power switch 20 and the feed key 2
1, the lid 22, and the terminal receiver 23 are provided on the upper end frame 2b. The case 2 assembled in this way is made of synthetic resin, and in order to reduce the size and weight and the number of parts, the motor and gears that drive the platen 8 are directly attached to the case 2 without interposing a metal frame. It is installed.

In such a configuration, when setting the long paper 5, the cover 3 is opened, the long paper 5 wound in a roll shape is stored in the hopper 6 of the printer body 1, and the cover 3 is placed. In a wide space where is open, the leading end of the long paper 5 is pulled out to a position where it covers the platen 8 and the label peeling body 9, and the cover 3 is closed. As a result, as shown in FIG. 2, the leading end portion of the backing paper 5a of the long paper 5 is pressed against the platen 8 by the thermal head 12 and the pinch roller 16, and the label peeling body 9 pulls out the backing path of the backing paper 5a. Is bent at an acute angle, and the lifting of the long paper 5 from the bottom surface of the hopper 6 is prevented by the paper retainer 18. Such work is performed with the printer body 1 mounted on the waist of the operator.

When the power switch 20 is turned on and data is input from the handy terminal, the data is output by the thermal head 12. Then, when the platen 8 is driven, the backing sheet 5a is pulled out by the label peeling body 9 while being bent at an acute angle, and the printed label 5
The label b is peeled from the mount 5b and issued from the label outlet 17.

By the way, when used outdoors on a rainy day,
Rain may enter through the recording paper discharge port (label discharge port 17, backing paper discharge port 19), but the rainwater does not splash on the circuit board 31 arranged above the recording paper discharge port. Further, since the terminal receiver 23 is tilted and the drain groove 24a is formed on one side of the lower frame 24 in the tilt direction, even if liquid is splashed on the upper surface of the printer body 1 during use, the frame 24 can be quickly processed. Can be flushed outside.

[0016]

According to the present invention, since the circuit board is provided inside the printer body by being arranged above the recording paper discharge port of the main body, even if rain enters from the recording paper discharge port, the circuit board is attached to the circuit board. This is not the case. As a result, it is possible to prevent a failure such as a short circuit on the circuit board in advance.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention and is a perspective view of a printer body as viewed from the front side.

FIG. 2 is a plan view in which a part of the printer main body of FIG. 1 is cut away.

FIG. 3 is a perspective view of the printer body of FIG. 1 viewed from the back side.

FIG. 4 is an exploded perspective view of the case of FIG.

[Explanation of symbols]

 1 Printer Main Body 7 Transport Passage 12 Print Head 17, 19 Recording Paper Discharge Port 31 Circuit Board

Claims (1)

[Claims] 1. A printer main body having a conveyance path for conveying a recording sheet and a print head disposed in the conveyance path, and a recording sheet ejection formed on a side surface of the printer main body connected to the conveyance path. A portable printer comprising: an outlet; and a circuit board disposed inside the printer body, the circuit board having a control unit for controlling printing and an operation associated with the printing and arranged above the recording paper discharge port. .