JPH04106567A - Led printer - Google Patents
Led printerInfo
- Publication number
- JPH04106567A JPH04106567A JP2224904A JP22490490A JPH04106567A JP H04106567 A JPH04106567 A JP H04106567A JP 2224904 A JP2224904 A JP 2224904A JP 22490490 A JP22490490 A JP 22490490A JP H04106567 A JPH04106567 A JP H04106567A
- Authority
- JP
- Japan
- Prior art keywords
- printing
- cooling fan
- sensor
- information
- temp
- 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
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 230000006866 deterioration Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 230000007423 decrease Effects 0.000 description 3
- 230000020169 heat generation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は露出装置にＬＥＤアレーからなるプリントヘッ
ドを用いるＬＥＤプリンタに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an LED printer that uses a print head consisting of an LED array in an exposure device.
従来、ＬＥＤプリンタは、発光ダイオード（ＬＥＤ）ア
レーからなるプリントヘッドの発熱検出手段を有してお
らず、プリントヘッドの発熱状態に関係なく印字動作を
行なっていた。Conventionally, LED printers do not have a heat generation detection means for a print head consisting of a light emitting diode (LED) array, and print operations are performed regardless of the heat generation state of the print head.
上述した従来のＬＥＤプリンタは、プリントヘッドへの
電源電流を２０〜３０Ａ流すなめ、プリトヘッドの全ド
ツトが点灯するような黒べた印字を連続して行なうと、
プリントヘッドが高温発熱状態となる。プリントヘッド
が高温になるとＬＥＤ発光光量が低下し、印字品質が悪
くなる。また、ＬＥＤの劣化が促進されるという欠点が
ある。The above-mentioned conventional LED printer requires a power supply current of 20 to 30 A to flow through the print head, and if continuous black printing is performed with all dots on the print head lit,
The print head becomes hot. When the print head becomes hot, the amount of light emitted by the LEDs decreases, resulting in poor print quality. Another drawback is that the deterioration of the LED is accelerated.
本発明のＬＥＤプリンタは、ＬＥＤアレーからなるプリ
ントヘッドの温度を検出する温度センサと、前記プリン
トヘッドに送風する冷却ファンと、前記温度センサの検
出温度に基つき前記冷却ファンの送風量を制御する冷却
ファン制御手段と、前記温度センサの検圧温度に基つき
印字の開始及び停止を制御する印字制御手段とを備えて
いる。The LED printer of the present invention includes a temperature sensor that detects the temperature of a print head composed of an LED array, a cooling fan that blows air to the print head, and an air flow rate of the cooling fan that is controlled based on the temperature detected by the temperature sensor. The apparatus includes a cooling fan control means, and a printing control means for controlling the start and stop of printing based on the pressure temperature detected by the temperature sensor.
また、本発明のＬＥＤプリンタは、前記印字制御手段に
制御されて状態表示を行う表示手段を含んで構成されて
いてもよい。Moreover, the LED printer of the present invention may be configured to include display means for displaying the status under the control of the print control means.
次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は、本発明の一実施例を示すブロック図である。FIG. 1 is a block diagram showing one embodiment of the present invention.
プリントヘッド１に温度センサ２を取り付け、又、近傍
に冷却ファン３を配置する。温度センサ２はサーミスタ
である。温度センサ２の情報はＡ点より取り出され、冷
却ファン制御部４と印字制御部５へ入力される。A temperature sensor 2 is attached to the print head 1, and a cooling fan 3 is placed nearby. Temperature sensor 2 is a thermistor. Information from the temperature sensor 2 is taken out from point A and input to the cooling fan control section 4 and the printing control section 5.
冷却ファン制御部４は温度センサ２の情報をもとに冷却
ファン３のオンオフ制御を行ない、プリントヘッド３を
冷却する。また、印字制御部５は、温度センサ２の情報
をもとに、印字の開始及び停止の制御ならひに表示部６
へのプリンタ内部情報の表示制御をする。The cooling fan control unit 4 performs on/off control of the cooling fan 3 based on information from the temperature sensor 2 to cool the print head 3. Furthermore, the printing control section 5 controls the start and stop of printing based on the information from the temperature sensor 2, and also controls the display section 6.
Controls the display of printer internal information.
以上説明したようにして、プリントヘッド１の温度が設
定値温度より高い時には、表示部６へ温度状態を表示し
、温度が低下するのを待って印字を行なう。As explained above, when the temperature of the print head 1 is higher than the set value temperature, the temperature status is displayed on the display section 6, and printing is performed after waiting for the temperature to decrease.
以上説明したように本発明は、プリントヘッドに温度セ
ンサと冷却ファンを取り付け、この温度センサの情報を
もとに冷却ファンを制御し、がっ、印字開始、停止制御
を行なうことによって、プリントヘッドが高温発熱状態
で印字されることが防止でき、その結果、プリントヘッ
ドのＬＥＤ素子の熱劣化防止及びＬＥＤ発光光量低下に
よる印字品質の低下を防止できる効果がある。As explained above, the present invention attaches a temperature sensor and a cooling fan to the print head, controls the cooling fan based on information from the temperature sensor, and performs printing start and stop control. It is possible to prevent printing in a high-temperature heat generation state, and as a result, it is possible to prevent thermal deterioration of the LED elements of the print head and to prevent deterioration in print quality due to a decrease in the amount of light emitted by the LEDs.
また、プリンタ内部状態を表示部に表示するようにすれ
ば、使用者へ状態を知らせることができ、特に熱冷却期
間が長くプリンタが停止している時には有効である。Furthermore, if the internal state of the printer is displayed on the display, the user can be informed of the state, which is particularly effective when the printer is stopped during a long thermal cooling period.
第１図は本発明の一実施例を示すブロック図である。
１・・・プリントヘッド、２・・・温度センサ、３・・
・冷却ファン、４・・・冷却ファン制御部、５・・・印
字制御部、６・・・表示部、７・・・抵抗。FIG. 1 is a block diagram showing one embodiment of the present invention. 1...Print head, 2...Temperature sensor, 3...
- Cooling fan, 4... Cooling fan control unit, 5... Printing control unit, 6... Display unit, 7... Resistor.
Claims (1)
する温度センサと、前記プリントヘッドに送風する冷却
ファンと、前記温度センサの検出温度に基づき前記冷却
ファンの送風量を制御する冷却ファン制御手段と、前記
温度センサの検出温度に基づき印字の開始及び停止を制
御する印字制御手段とを備えたことを特徴とするＬＥＤ
プリンタ。 ２、前記印字制御手段に制御されて状態表示を行う表示
手段を含むことを特徴とする請求項１記載のＬＥＤプリ
ンタ。[Claims] 1. A temperature sensor that detects the temperature of a print head composed of an LED array, a cooling fan that blows air to the print head, and an air flow rate of the cooling fan that is controlled based on the temperature detected by the temperature sensor. An LED characterized by comprising a cooling fan control means and a printing control means for controlling start and stop of printing based on the temperature detected by the temperature sensor.
printer. 2. The LED printer according to claim 1, further comprising display means for displaying a status under the control of said print control means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2224904A JPH04106567A (en) | 1990-08-27 | 1990-08-27 | Led printer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2224904A JPH04106567A (en) | 1990-08-27 | 1990-08-27 | Led printer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04106567A true JPH04106567A (en) | 1992-04-08 |
Family
ID=16820981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2224904A Pending JPH04106567A (en) | 1990-08-27 | 1990-08-27 | Led printer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04106567A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004108417A1 (en) * | 2003-06-04 | 2004-12-16 | Mimaki Engineering Co.,Ltd. | Ink jet printer using uv ink |
-
1990
- 1990-08-27 JP JP2224904A patent/JPH04106567A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004108417A1 (en) * | 2003-06-04 | 2004-12-16 | Mimaki Engineering Co.,Ltd. | Ink jet printer using uv ink |
| US7690781B2 (en) | 2003-06-04 | 2010-04-06 | Mimaki Engineering Co., Ltd. | Ink jet printer using UV ink |
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