JPS6337232U - - Google Patents
Info
- Publication number
- JPS6337232U JPS6337232U JP12889686U JP12889686U JPS6337232U JP S6337232 U JPS6337232 U JP S6337232U JP 12889686 U JP12889686 U JP 12889686U JP 12889686 U JP12889686 U JP 12889686U JP S6337232 U JPS6337232 U JP S6337232U
- Authority
- JP
- Japan
- Prior art keywords
- heating resistor
- energization
- printing process
- thermal head
- adjacent
- 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
- 238000010438 heat treatment Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims 6
- 238000010586 diagram Methods 0.000 description 8
- 238000005338 heat storage Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Description
第１図は本考案の構成を示すブロツク図、第２
図は本考案に係るサーマルヘツド駆動装置の一例
を示すブロツク図、第３図は考慮すべき発熱抵抗
体を示す図、第４図は第２図における通電開始時
温度演算回路の具体的構成例を示すブロツク図、
第５図は発熱抵抗体に対する通電ＯＮ／ＯＦＦ制
御の際の温度変化特性の例を示す図、第６図は従
来のサーマルヘツド駆動装置にて適用する参照デ
ータの状態を示す図、第７図は従来の装置におけ
る蓄熱状態と印加パルス幅の関係を示すグラフ図
である。
〔符号の説明〕１……サーマルヘツド、２……
通電開始時温度演算手段、３……通電エネルギー
制御手段、１０……通電開始時温度演算器、１３
，１４……温度情報演算器、２２，２３……パル
ス演算器。
Figure 1 is a block diagram showing the configuration of the present invention, Figure 2 is a block diagram showing the configuration of the present invention.
The figure is a block diagram showing an example of a thermal head drive device according to the present invention, FIG. 3 is a diagram showing a heating resistor to be taken into consideration, and FIG. 4 is a specific configuration example of the temperature calculation circuit at the start of energization in FIG. 2. A block diagram showing
Fig. 5 is a diagram showing an example of temperature change characteristics during ON/OFF control of current supply to the heating resistor, Fig. 6 is a diagram showing the state of reference data applied in a conventional thermal head drive device, and Fig. 7 is a graph diagram showing the relationship between the heat storage state and the applied pulse width in a conventional device. [Explanation of symbols] 1...Thermal head, 2...
Temperature calculation means at the start of energization, 3... Energization energy control means, 10... Temperature calculation unit at the start of energization, 13
, 14... Temperature information calculator, 22, 23... Pulse calculator.
Claims (1)
ロセス毎に選択されるサーマルヘツドの各発熱抵
抗体に対して通電するに際し、その通電エネルギ
ーを、当該発熱抵抗体及びそれに隣接する発熱抵
抗体の過去の通電状態と今回の単位印字プロセス
での当該隣接する発熱抵抗体の選択状態とに基づ
いて制御するようにしたサーマルヘツド駆動装置
であつて、当該発熱抵抗体及びそれに隣接する発
熱抵抗体の前回の単位印字プロセスでの通電状態
と前回の単位印字プロセスにおける通電開始時の
当該発熱抵抗体及びそれに隣接する発熱抵抗体の
各温度情報とに基づいて今回の単位印字プロセス
における通電開始時の当該発熱抵抗体の温度情報
を演算する通電開始時温度演算手段と、この通電
開始時温度演算手段にて演算された温度情報と今
回の単位印字プロセスでの当該発熱抵抗体に隣接
する発熱抵抗体の選択状態とに基づいて当該発熱
抵抗体への通電エネルギーを制御する通電エネル
ギー制御手段とを備えたことを特徴とするサーマ
ルヘツド駆動装置。 When energizing each heating resistor of the thermal head selected for each unit printing process based on pixel-corresponding dot data, the energization energy is applied to the past energization of the heating resistor and the adjacent heating resistor. A thermal head driving device that performs control based on the state and the selection state of the adjacent heating resistor in the current unit printing process, the thermal head driving device controlling the previous unit of the heating resistor and the adjacent heating resistor. Based on the energization state in the printing process and the temperature information of the heating resistor and adjacent heating resistors at the time of starting energization in the previous unit printing process, the heating resistor at the time of starting energization in the current unit printing process temperature information at the start of energization, and the temperature information calculated by the temperature at the start of energization and the selected state of the heating resistor adjacent to the heating resistor in the current unit printing process. 1. A thermal head driving device comprising: energization energy control means for controlling energization energy to the heat generating resistor based on .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12889686U JPS6337232U (en) | 1986-08-26 | 1986-08-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12889686U JPS6337232U (en) | 1986-08-26 | 1986-08-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6337232U true JPS6337232U (en) | 1988-03-10 |
Family
ID=31024980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12889686U Pending JPS6337232U (en) | 1986-08-26 | 1986-08-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6337232U (en) |
-
1986
- 1986-08-26 JP JP12889686U patent/JPS6337232U/ja active Pending
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