JPH04126867U - thermal printer - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to obtain a thermal printer that can easily remove jammed ink sheets and recording paper. [Structure] This idea divides the frame structure of a thermal printer into two frames: a main frame that supports the platen, and a subframe that supports the thermal head.When clearing paper jams, the subframe is placed above the main frame. It is constructed so that it can be opened to [Effect] An effect is that jammed recording paper or ink sheets can be easily removed from above the thermal printer.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea uses a thermal head to print thermal transfer type thermal recording paper and direct thermal printing paper. Regarding thermal printers that record image information on thermal recording paper such as paper, it is especially important to avoid paper jams. The present invention relates to a thermal printer having a frame structure that can be easily released.

0002

[Conventional technology]

A drawing of a conventional thermal printer using a thermal transfer type thermal printer as an example. The explanation will be based on. FIG. 3 is a perspective view of a conventional thermal printer. The thermal printer 100 is designed so that the operation of the thermal printer is convenient for the user. It is configured so that it can be operated only from the front.

0003 That is, the ink sheet is inserted into the cassette insertion slot 102 together with the cassette 101, and The recording paper, together with the tray 103, is inserted into and removed from the tray insertion slot 104. Additionally, thermal The operation panel 106 for operating the printer is also located on the front of the thermal printer. Therefore, the device is configured so that the user can use it by simply operating the device from the front.

0004

[Problem that the idea aims to solve]

However, with such conventional thermal printers, operations can only be performed on the front of the device. On the other hand, if a paper jam occurs, you cannot record the paper jam only from the front of the device. The problem is that it is difficult to remove recording paper and ink sheets from inside the device. was.

[0005] Further, as shown in FIG. 4, a knob 110 is attached to the paper feed roller 109 that feeds the recording paper. There are also thermal printers that allow you to manually eject the recording paper 111. If the recording paper is torn, paper scraps may remain inside the device, and it may not be completely removed. The problem was that it could not be completely removed. Therefore, the purpose of this invention was to solve the problem of conventional paper jams. A thermal printer that can easily remove ink sheets and recording paper Is Rukoto.

[0006]

[Means to solve the problem]

In order to solve the above problems, this idea changed the frame structure of the thermal printer to Main frame that supports the platen and subframe that supports the thermal head The structure is divided into two frames, with the subframe opened above the main frame. The paper is released so that paper jams can be easily cleared.

[0007]

[Effect]

In a thermal printer configured as above, the subframe is the main By opening the frame upward, you can remove jammed paper from only the front of the device. This means that it can be easily removed from the top surface.

[0008]

【Example】

Examples of this invention will be described below based on the drawings. In FIG. 1, a cassette 2 is an ink sheet supply roller that supplies an ink sheet 3. rotatably supports the ink sheet winding roll 4 and the ink sheet winding roll 5 that winds up the ink sheet 3. It can be easily attached to and detached from the thermal printer 1. Ink sheet 3 is ink sheet volume The take-up roll 5 is rotated by a drive means (not shown in the figure) (a DC motor was used in this embodiment). It is rolled up by rotating it.

[0009] The recording paper 7 placed in the tray 6 is fed out one by one by a paper feed roller 8, and then - sent to Mal Head 9. At this time, with the recording paper 7 facing the ink application side of the ink sheet 3, The thermal head 9 is inserted between the platen 11 and the thermal head 9, which is rotated by the thermal head 10. here The thermal head 9 and the platen 11 are brought into pressure contact by a compression spring 12. stop By applying a heat pulse corresponding to the input image signal to the thermal head 9, The image is transferred onto recording paper 7, and an output image is obtained. The recording paper 7 that has finished printing is ejected. The paper is discharged to the port 13 and the printing operation is completed.

0010 Next, a method for clearing a paper jam when it occurs will be explained. thermal head The sub-frame 14 rotatably supports the platen 9. The subframe 14 rotatably supports the platen 11. The main frame 15 is supported by pins 16 so that it can be opened and closed freely. That is, fig. When a paper jam occurs as in 2, move the subframe 14 to the main frame 15. By opening upward, you can remove ink sheets and recording paper from above the thermal printer. can be removed.

[0011]

【Effect of the invention】

As explained above, this idea is useful when a thermal printer encounters a paper jam. , Since the subframe can be opened above the main frame, paper jams can be avoided. Easily remove printed recording paper and ink sheets not only from the front of the device but also from the top. It has the effect of being able to.

[Brief explanation of drawings]

FIG. 1 is a vertical view illustrating a thermal printer of the present invention.

FIG. 2 is a perspective view illustrating the paper jam clearing operation of the present invention.

FIG. 3 is a perspective view of a conventional thermal printer.

FIG. 4 is a perspective view of a paper feeding section of another conventional thermal printer.

[Explanation of symbols]

3 Ink sheet 7 Recording paper 9 Thermal head 11 Platen 14 Subframe 15 Mainframe

──────────────────────────────────────────────── ─── Continued from front page (51) Int.Cl. ⁵ Identification code Internal reference number FI Technical display location B41J 29/02 8804-2C 9111-2C B41J 25/30 U

Claims (1)

[Scope of utility model registration request] 1. A thermal printer that records image information by pressing a thermal head against a platen via thermal recording paper and applying heat pulses to the thermal head, the platen rotatably supported by a main frame; A thermal printer comprising: a sub-frame supported by the main frame so that the upper part of the main frame can be opened and closed; and a thermal head rotatably supported by the sub-frame.