JPH0366751U - - Google Patents
Info
- Publication number
- JPH0366751U JPH0366751U JP12704789U JP12704789U JPH0366751U JP H0366751 U JPH0366751 U JP H0366751U JP 12704789 U JP12704789 U JP 12704789U JP 12704789 U JP12704789 U JP 12704789U JP H0366751 U JPH0366751 U JP H0366751U
- Authority
- JP
- Japan
- Prior art keywords
- surface temperature
- head
- head surface
- temperature
- estimating
- 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 2
- 230000020169 heat generation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
Landscapes
- Accessory Devices And Overall Control Thereof (AREA)
- Electronic Switches (AREA)
- Fax Reproducing Arrangements (AREA)
Description
第１図は、本考案の一実施例によるヘツド表面
温度推測装置およびサーマルプリンタの回路構成
を示すブロツク図、第２図は、本考案の作用を説
明するための時間−温度特性図、および第３図は
、サーミスタを取り付けたサーマルプリントヘツ
ドを示す側面図である。
１０……サーマルプリントヘツド、１２……発
熱抵抗素子列、１４……サーミスタ（温度センタ
）、２０……システム制御部、２４……ＬＵＴ、
２６……ＬＵＴ、３０……発熱エネルギ演算回路
、３６……ＬＵＴ（濃度−通電時間変換）。
FIG. 1 is a block diagram showing the circuit configuration of a head surface temperature estimating device and a thermal printer according to an embodiment of the present invention, and FIG. 2 is a time-temperature characteristic diagram for explaining the operation of the present invention. FIG. 3 is a side view showing a thermal print head with a thermistor attached thereto. 10... Thermal print head, 12... Heat generating resistor element row, 14... Thermistor (temperature center), 20... System control unit, 24... LUT,
26... LUT, 30... Exothermic energy calculation circuit, 36... LUT (concentration-current application time conversion).
Claims (1)
リントヘツドに取り付けられた温度センサと、 現時の前記温度センサの出力信号と周囲温度と
から一定時間前の前記ヘツドの表面温度を推測す
る第１のヘツド表面温度推測手段と、 画像データを基に前記一定時間の期間中に前記
ヘツドで発生された発熱エネルギの量を割り出す
発熱エネルギ割出手段と、 前記一定時間前のヘツド表面温度推測値と前記
発熱エネルギ量とから現時のヘツド表面温度を推
測する第２のヘツド表面温度推測手段と、 を具備したことを特徴とするヘツド表面温度推測
装置。 (2) 請求項１の第２のヘツド表面温度推測手段
より得られる現時のヘツド表面温度推測値にした
がつて発熱抵抗素子の通電時間を補正する手段を
具備したことを特徴とする濃度階調制御型サーマ
ルプリンタ。[Scope of Claim for Utility Model Registration] (1) A temperature sensor attached to a thermal print head having heating resistive elements arranged on its surface, and a temperature sensor attached to a thermal print head that has heat-generating resistive elements arranged on its surface, and the temperature of the head a certain period of time ago based on the current output signal of the temperature sensor and the ambient temperature. first head surface temperature estimating means for estimating the surface temperature; exothermic energy determining means for determining the amount of exothermic energy generated in the head during the predetermined time period based on image data; and before the predetermined time period. A head surface temperature estimating device comprising: second head surface temperature estimating means for estimating the current head surface temperature from the estimated head surface temperature value and the amount of heat generation energy. (2) A density gradation characterized by comprising means for correcting the energization time of the heating resistor element in accordance with the current estimated head surface temperature value obtained by the second head surface temperature estimating means according to claim 1. Controlled thermal printer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12704789U JPH0366751U (en) | 1989-10-30 | 1989-10-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12704789U JPH0366751U (en) | 1989-10-30 | 1989-10-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0366751U true JPH0366751U (en) | 1991-06-28 |
Family
ID=31674831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12704789U Pending JPH0366751U (en) | 1989-10-30 | 1989-10-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0366751U (en) |
-
1989
- 1989-10-30 JP JP12704789U patent/JPH0366751U/ja active Pending
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