JPH0463251U - - Google Patents
Info
- Publication number
- JPH0463251U JPH0463251U JP10516390U JP10516390U JPH0463251U JP H0463251 U JPH0463251 U JP H0463251U JP 10516390 U JP10516390 U JP 10516390U JP 10516390 U JP10516390 U JP 10516390U JP H0463251 U JPH0463251 U JP H0463251U
- Authority
- JP
- Japan
- Prior art keywords
- led
- output
- shift register
- latch circuits
- latch
- 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
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Dot-Matrix Printers And Others (AREA)
- Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
Description
第１図は本考案の一実施例のＬＥＤプリンタヘ
ツドを示す構成図、第２図は本考案のＬＥＤプリ
ンタヘツドの動作タイミングを示す図、第３図は
従来のＬＥＤプリンタヘツドを示す構成図、第４
図はＢＰＷＭを説明する図、第５図は従来のＬＥ
Ｄプリンタヘツドの動作タイミングを示す図であ
る。
１……シフトレジスタ、２〜５……ラツチ、６
……スイツチ、７……ＬＥＤドライバ、８……Ｌ
ＥＤアレイ。
FIG. 1 is a block diagram showing an LED printer head according to an embodiment of the present invention, FIG. 2 is a diagram showing the operation timing of the LED printer head of the present invention, and FIG. 3 is a block diagram showing a conventional LED printer head. Fourth
The figure is a diagram explaining BPWM, and Figure 5 is the conventional LE
FIG. 3 is a diagram showing the operation timing of the D printer head. 1...Shift register, 2-5...Latch, 6
...Switch, 7...LED driver, 8...L
ED array.
Claims (1)
ＬＥＤ素子の点灯を決める情報を記憶するシフト
レジスタと前記シフトレジスタの出力をラツチす
るラツチ回路と前記ＬＥＤアレイの発光時間を制
御するＬＥＤドライバとを有するＬＥＤプリンタ
ヘツドにおいて、前記ラツチ回路を複数備え前記
複数のラツチ回路の出力から一つの出力を選択し
その出力を前記ＬＥＤドライバに供給するスイツ
チ回路を具備することを特徴とするＬＥＤプリン
タヘツド。 An LED comprising an LED array in which a plurality of LED elements are arranged, a shift register that stores information that determines lighting of the LED elements, a latch circuit that latches the output of the shift register, and an LED driver that controls the light emission time of the LED array. An LED printer head comprising a plurality of the latch circuits, and a switch circuit that selects one output from the outputs of the plurality of latch circuits and supplies the output to the LED driver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10516390U JPH0463251U (en) | 1990-10-05 | 1990-10-05 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10516390U JPH0463251U (en) | 1990-10-05 | 1990-10-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0463251U true JPH0463251U (en) | 1992-05-29 |
Family
ID=31850753
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10516390U Pending JPH0463251U (en) | 1990-10-05 | 1990-10-05 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0463251U (en) |
-
1990
- 1990-10-05 JP JP10516390U patent/JPH0463251U/ja active Pending
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