JPS61120773A - Thermal recorder - Google Patents

Abstract

PURPOSE:To enable a thermal recorder to be used for both thermal transfer recording and thermal recording, by a construction wherein both a thermal transfer recording temperature table and a thermal recording temperature table are provided in a CPU, and a changeover switch for the temperature tables is provided. CONSTITUTION:A recording material 4 is rewound to bring a cut leding edge thereof close to heating elements 5 so that no blank part is generated at the leading edge at the time of the next transfer, resulting in a stand-by condition for the next transfer, while an ink sheet 2 is detachably fitted. The CPU11 constituting a controlling part for the recorder comprises both the temperature table for thermal transfer recording and the temperature table for thermal recording, and a switch 12 for changing over between the temperature tables is provided at a predetermined part. When the switch 12 is turned ON, the thermal transfer recording temperature table incorporated in the CPU11 is selected, whereas when the switch 12 is turned OFF, the thermal recording temperature table in the CPU11 is selected.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a thermal recording device capable of switching between thermal transfer recording and thermal recording.

゛ Traditional technology゛ Traditionally, there are thermal transfer recording methods and thermosensitive recording methods for recording methods such as printers and printers. This is a method of thermally transferring images onto a material, and the latter is a method of conveying thermal paper that develops color with heat, and recording by heating the thermal paper with a thermal head.

Then, as shown in Figure 5 of Izutsu, the temperature of the heating element 5 in the thermal hair dryer is detected by the thermistor 13 attached to the thermal hair dryer, and the MIIA degree information is sent to the CPU.
The power is transmitted to the heat generating element 5 via the driver 14 and applied power is transmitted to the heat generating element 5 according to the temperature to be applied to the heat generating element 5 based on a temperature table built in the CPU II.

As mentioned above, the temperature of the heating element is changed at any time because if the temperature of the heating element is lower than the recording permeability temperature, the ink on the ink sheet will not melt sufficiently in thermal transfer recording, and in RF5 thermal recording, thermal If sufficient color is not developed on the paper and a normal image density cannot be obtained, on the other hand, if the temperature of the heating element is higher than the appropriate temperature, image collapse and trailing may occur in thermal transfer recording, and transport problems may occur. This is because sometimes sticking occurs or even the ink sheet sticks to the heating element, which wastes power in thermal recording and is not desirable from the standpoint of protecting the thermal head.

<Problems to be Solved by the Invention> However, as shown in FIG. 6(a), the applied electric power does not match between the thermal transfer recording and the thermosensitive recording based on the temperature of the heating element. Therefore, the temperature tables for the two are different, and thermal transfer recording and thermosensitive recording have temperature tables suitable for each (for example, in the case of the temperature table shown in FIG. 6(b), the temperature of the heating element is 20<T<40 0.9 during the applied pulse
+++sec is the appropriate value) otherwise good images cannot be obtained, so thermal recording cannot be performed with a thermal transfer recording device, and there is also a drawback that thermal transfer recording cannot be performed with a thermal recording device. there were.

The present invention was developed to improve the above-mentioned conventional drawbacks, and its purpose is to provide a device that can be used as a thermal transfer recording device or a thermal recording device depending on the user's purpose.

6 Means for Solving the Problems> FIG. 1 is an explanatory diagram when the apparatus according to the present invention is used as a thermal transfer recording apparatus, in which an ink sheet 2 wound around a supply roll l and a recording material The recording material 4 wound around the roll 3 is configured to closely pass between a platen roller 7 and a thermal head 6 having a heating element 5 capable of generating heat according to recorded image information. ,
At this time, the ink of the ink sheet 2 is peeled off and adhered to the recording material 4 by the heat generated by the heating element 5 in accordance with the predetermined recorded image information, and the predetermined recorded image is thermally transferred.

Furthermore, after thermal transfer, the ink sheet 2 and recording material 4 are separated,
One of the separated ink sheets 2 is wound onto a take-up roll 8, and the other recording material 4 is wound by force.

The recording material 4 is canted from the trailing edge of the recorded image by the printer 9 and ejected from a predetermined portion, and the remaining recording material 4 is rewound so that the cut end is near the heating element 5 so that no margin is left at the end during the next transfer. The apparatus is configured to be in a standby state for the next thermal transfer.

Note that in the above configuration, the ink sheet 2 is removable.

FIG. 2 is an explanatory diagram when the ink sheet is used as a thermal recording device, and thermal recording is made possible by removing the ink sheet 2 from the thermal transfer recording value T and loading the recording material roll 3 with thermal paper.

Furthermore, in FIG. 3, the CPU 11, which is the control section of the apparatus, is equipped with both a temperature table for thermal transfer recording and a temperature table for thermal recording, and a switch 12 for switching between the two temperature tables is located at a predetermined part. It is provided. That is, when the switch 12 is in the ON state, the thermal transfer recording temperature table built in the CPU Ull is selected, and when the switch 12 is in the OFF state, the thermal transfer recording temperature table built in the CPU 11 is selected.

<Operation> Next, the operation of the above device will be explained with reference to the flowchart of FIG. 4. First, when thermal transfer recording is to be performed, the ink sheet 2 is loaded into the apparatus, the switch is turned on, and the temperature table in CPIJII is changed to one for thermal transfer recording. When recording starts in this state, the temperature of the heating element 5 is detected by the thermistor 13 of the thermal head, and the pulse width of the electric power to be applied is selected in the thermal transfer recording temperature table in the CP Ull according to the temperature information. The electric power is transmitted to the heating element 5 via the driver 14 to generate heat, and a predetermined image is recorded on the recording material 4.

Next, when performing thermal recording, the ink sheet 2 is removed from the apparatus and the switch 12 is turned off.

This switches the temperature table to thermal recording,
When recording is started in this state, the temperature of the heating element 5 is detected by the thermistor 13 as in the case of the thermal transfer recording, and the pulse width of the electric power to be applied is determined based on the temperature report 15 in the thermal recording temperature table in the CPU 11. is selected and set,
The heating element 5 generates heat and a predetermined recording image is recorded on the thermal paper 10.

<Effects of the Invention> As described above, the present invention provides both a temperature table for thermal transfer recording and a temperature table for thermal recording in the CPIJ, which is the control unit, and a switch for switching between the two temperature tables. The temperature table can be changed at any time by Therefore, it is possible to perform both thermal transfer recording and thermal recording with one device according to the user's purpose, and by using a temperature table suitable for the recording method.

[Brief explanation of the drawing]

FIGS. 1 and 2 are explanatory diagrams for thermal transfer recording and thermosensitive recording, FIGS. 3 and 4 are block diagrams and flowcharts of the apparatus, and FIGS. 5 and 6 are explanatory diagrams of the prior art. . ■ is a supply roll, 2 is an ink sheet, 3 is a recording material roll, 4 is a recording material, 5 is a heating element, 6 is a thermal, 7 is a platen roller, 8 is a take-up roll, 9 is a cutter,
IO is thermal paper, 11 is cpU, 12 is thermistor,
13 is a driver.

Claims (1)

[Claims] In a thermal recording device that performs thermal recording using the heat generated by the thermal head, it has a temperature table that determines the power to be applied to the thermal head as the temperature changes, and a temperature table for thermal transfer recording and a temperature table for thermal recording. 1. A thermal recording device characterized by being provided with a temperature table and being able to switch between the two temperature tables.