JPS6120338U - Print density control device for thermal printers - Google Patents
Print density control device for thermal printersInfo
- Publication number
- JPS6120338U JPS6120338U JP10306784U JP10306784U JPS6120338U JP S6120338 U JPS6120338 U JP S6120338U JP 10306784 U JP10306784 U JP 10306784U JP 10306784 U JP10306784 U JP 10306784U JP S6120338 U JPS6120338 U JP S6120338U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- resistance value
- thermal head
- setting
- control device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electronic Switches (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案のクレーム対応図、第２図は本考案に係
る実施例における制御系のブロック図、第３図は本実施
例のＲＯＭに書き込まれているパルス巾マｌ・リクスの
内容を示した図である。
１・・・ＣＰＵ， ２・・・ＲＯＭ，３・・・ＲＡＭ，
４・・・入力インタフェース、５・・・出力インタフェ
ース、６・・・サーミスタ、７・・・ブロック番号決定
回路、８・・・抵抗値用ＲＯＭ， ９・・・画信号送信
回路、１０・・・ドライバー回路、１１・・・サーマル
ヘッド。Fig. 1 is a complaint correspondence diagram of the present invention, Fig. 2 is a block diagram of a control system in an embodiment according to the present invention, and Fig. 3 is the contents of the pulse width matrix written in the ROM of this embodiment. FIG. 1...CPU, 2...ROM, 3...RAM,
4... Input interface, 5... Output interface, 6... Thermistor, 7... Block number determining circuit, 8... ROM for resistance value, 9... Image signal transmission circuit, 10... - Driver circuit, 11... thermal head.
Claims (1)
温度を検知するサーマルヘッド温度検知手段と、サーマ
ルヘッドの抵抗の平均抵抗値を設定−する抵抗値設定手
段と、原稿の黒情報を１ライン毎に数をカウントする黒
情報カウント手段と、以上３手段により得られる温度、
抵抗値および黒情報量に基づいてサーマルヘッドへの印
加電圧を制御する制御信号のパルス巾を決定するパルス
巾決定手段と、同パルス巾決定手段により決定されたパ
ルス巾に該制御信号を設定するパルス巾制御手段とを備
えたことを特徴とする印字濃度制御装置。In a thermal image recording device, there is a thermal head temperature detection means for detecting the substrate temperature of the thermal head, a resistance value setting means for setting the average resistance value of the resistance of the thermal head, and a resistance value setting means for setting the average resistance value of the resistance of the thermal head. a black information counting means for counting the number, and a temperature obtained by the above three means,
Pulse width determining means for determining the pulse width of a control signal for controlling the voltage applied to the thermal head based on the resistance value and the amount of black information; and setting the control signal to the pulse width determined by the pulse width determining means. 1. A print density control device comprising pulse width control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10306784U JPS6120338U (en) | 1984-07-10 | 1984-07-10 | Print density control device for thermal printers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10306784U JPS6120338U (en) | 1984-07-10 | 1984-07-10 | Print density control device for thermal printers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6120338U true JPS6120338U (en) | 1986-02-05 |
Family
ID=30662462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10306784U Pending JPS6120338U (en) | 1984-07-10 | 1984-07-10 | Print density control device for thermal printers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6120338U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202470A (en) * | 1987-02-18 | 1988-08-22 | Matsushita Electric Ind Co Ltd | Thermal recording printer |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627370A (en) * | 1979-08-10 | 1981-03-17 | Canon Inc | Driving device of thermal head |
| JPS5772879A (en) * | 1980-10-27 | 1982-05-07 | Casio Comput Co Ltd | Control system of thermal printer |
-
1984
- 1984-07-10 JP JP10306784U patent/JPS6120338U/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5627370A (en) * | 1979-08-10 | 1981-03-17 | Canon Inc | Driving device of thermal head |
| JPS5772879A (en) * | 1980-10-27 | 1982-05-07 | Casio Comput Co Ltd | Control system of thermal printer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63202470A (en) * | 1987-02-18 | 1988-08-22 | Matsushita Electric Ind Co Ltd | Thermal recording printer |
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