JPH0185041U

JPH0185041U -

Info

Publication number: JPH0185041U
Application number: JP1987181880U
Authority: JP
Priority date: 1987-11-28
Filing date: 1987-11-28
Publication date: 1989-06-06

Description

[Brief explanation of the drawing]

第１図は本考案に基づく第１の実施例に示した
熱記録装置に使用されるサーマルヘツドの平面図
。第２図は従来の熱記録装置に使用されるサーマ
ルヘツドの平面図。第３−１図は本考案に基づく
実施例２に記述した熱記録装置に使用されるサー
マルヘツドの平面図。第３−２図、３−３図はサ
ーマルヘツドの平面図。第４−１図は第２の発熱
抵抗体の白ヌケ発生度数の説明図。第４−２図は
第１の発熱抵抗体群の白ヌケ発生度数の説明図。
第５図は通常使用されているバーコードの概略説
明図。第６−１図は従来の熱記録装置における、
第１の発熱抵抗体群に印加される通電パルスのタ
イミングチヤート。第６−２図は本考案に基づく
実施例１，２に記述した熱記録装置における第１
の発熱抵抗体群と第２の発熱抵抗体に印加される
通電パルスのタイミングチヤート。第７−１図は
蓄電池を駆動電源とする従来の熱記録装置におけ
る第１の発熱抵抗体群によるバーコードの記録パ
ターンの印加電力の変化に伴う記録形状の変化を
示す説明図。第７−２図は本考案の第２の発熱抵
抗体による前記電力の変化に伴う記録形状の変化
を示す説明図。第８−１図ａ，ｂは電極を取る際
に生じる選択、共通電極の配線抵抗による電圧降
下を示す説明図。第８−２図ａ，ｂは電極を取る
際の電圧降下を示す説明図である。１……第１の発熱抵抗体、２……第２の発熱抵
抗体、３，３′……共通電極、４……選択電極、
５……ＦＰＣ。 FIG. 1 is a plan view of a thermal head used in a thermal recording device according to a first embodiment of the present invention. FIG. 2 is a plan view of a thermal head used in a conventional thermal recording device. FIG. 3-1 is a plan view of a thermal head used in the thermal recording device described in Example 2 based on the present invention. 3-2 and 3-3 are plan views of the thermal head. FIG. 4-1 is an explanatory diagram of the frequency of occurrence of white spots on the second heating resistor. FIG. 4-2 is an explanatory diagram of the frequency of occurrence of white spots in the first heating resistor group.
FIG. 5 is a schematic explanatory diagram of a commonly used barcode. Figure 6-1 shows the conventional thermal recording device.
A timing chart of energization pulses applied to the first heating resistor group. Figure 6-2 shows the first thermal recording device in the thermal recording device described in Examples 1 and 2 based on the present invention.
2 is a timing chart of energization pulses applied to the heating resistor group and the second heating resistor. FIG. 7-1 is an explanatory diagram showing a change in the recording shape of a barcode recording pattern with a change in applied power by a first heating resistor group in a conventional thermal recording device using a storage battery as a driving power source. FIG. 7-2 is an explanatory diagram showing a change in recording shape due to a change in the electric power by the second heating resistor of the present invention. FIGS. 8-1 a and 8-1 are explanatory diagrams illustrating the selection that occurs when electrodes are taken, and the voltage drop due to the wiring resistance of the common electrode. FIGS. 8-2 a and 8-2 are explanatory diagrams showing the voltage drop when the electrodes are removed. 1... First heating resistor, 2... Second heating resistor, 3, 3'... Common electrode, 4... Selective electrode,
5...FPC.

Claims

[Claims for Utility Model Registration] (1) A first heating resistor group related to the recording of irregularly shaped figures such as characters, symbols, figures, etc. and, apart from the first heating resistor group, A thermal recording device comprising a thermal head having a second heating resistor that is involved only in recording. (2) A thermal recording device that records a barcode pattern on recording paper, and the length and width of one pattern, which is the smallest unit of the barcode to be obtained,
2. The thermal recording device according to claim 1, comprising a thermal head having said second heating resistor having substantially the same dimensions. (3) Claim 1 of the utility model registration claim characterized in that the second heating resistor includes a thermal head located on an extension line in the arrangement direction of the first heating resistor group. thermal recording device. (4) Scope of Utility Model Registration Claim 1, characterized in that the second heating resistor is provided with a thermal head formed on the opposite side of a rectangle with the first heating resistor group as one side. The thermal recording device described.