JPH01192571A - Printing head - Google Patents
Printing headInfo
- Publication number
- JPH01192571A JPH01192571A JP63017920A JP1792088A JPH01192571A JP H01192571 A JPH01192571 A JP H01192571A JP 63017920 A JP63017920 A JP 63017920A JP 1792088 A JP1792088 A JP 1792088A JP H01192571 A JPH01192571 A JP H01192571A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- led array
- driver element
- print head
- photosensitive drum
- 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
- 239000000758 substrate Substances 0.000 claims abstract description 23
- 230000003287 optical effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/447—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources
- B41J2/45—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using arrays of radiation sources using light-emitting diode [LED] or laser arrays
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- 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、印字ヘッド、特に、ＬＥＤアレイからの光出
力を光源とする電子写真方式のプリンタ装置に使用し１
ドツトライン分からなる印字ヘットに関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention is used in an electrophotographic printer device that uses light output from a print head, particularly an LED array, as a light source.
It relates to a printhead consisting of dotted lines.
従来の印字ヘッドはＬＥＤアレイとドライバー素子が基
板の同一平面上に実装されていた。In conventional printheads, the LED array and driver elements are mounted on the same plane of the substrate.
次に、従来例について、図面を参照して説明する。Next, a conventional example will be explained with reference to the drawings.
第２図は従来の一例を含む電子写真式プリンタの一例を
示す正面図である。FIG. 2 is a front view showing an example of an electrophotographic printer, including a conventional example.
第２図に示す印字ヘッドＡ′は、レンズ２を介して光出
力を感光ドラム１に伝達するためのものである。Print head A' shown in FIG. 2 is for transmitting light output to photosensitive drum 1 via lens 2. Print head A' shown in FIG.
この印字ヘッドＡ′は感光ドラム１と対向した基板４′
の上面に搭載されたＬＥＤアレイ３とドライバ素子５と
で構成されている。このため基板４の大きさである基板
長ρ′が大きく印字ヘッドＡ′ として大きくなる。This print head A' is connected to a substrate 4' facing the photosensitive drum 1.
It is composed of an LED array 3 and a driver element 5 mounted on the top surface of the LED array 3. For this reason, the substrate length ρ', which is the size of the substrate 4, becomes large and the print head A' becomes large.
すなわち、印字ヘッドＡ′の大・きさはキバンの大きさ
に依存しており、基板４′の同一平面上にＬＥＤアレイ
３とドライバ素子５を実装しているため、感光ドラム１
に対向する面積が大きくなる。That is, the size of the print head A' depends on the size of the print head, and since the LED array 3 and the driver element 5 are mounted on the same plane of the substrate 4', the photosensitive drum 1
The area facing the increases.
しかしながら、このような上述した従来の印字ヘッドは
ＬＥＤアレイとドライバ素子が同一平面上に実装されで
あるので表面積が大きくなり装置が大型化するという欠
点がある。However, in the above-described conventional print head, the LED array and the driver element are mounted on the same plane, so the surface area becomes large and the device becomes large.
本発明の印字ヘッドは、基板の三面に１つのＬＥＤアレ
イと、２つのドライバ素子を実装して構成される。The print head of the present invention is constructed by mounting one LED array and two driver elements on three sides of a substrate.
次に、本発明の実施例について、図面を参照して説明す
る。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例を含む電子写真式プリンタの
一例を示す正面図である。FIG. 1 is a front view showing an example of an electrophotographic printer including an embodiment of the present invention.
第１図に示す印字ヘッドＡはレンズ２を介して光出力を
感光ドラム１に伝達するためのものである。A print head A shown in FIG. 1 is for transmitting light output to a photosensitive drum 1 via a lens 2. The print head A shown in FIG.
この印字ヘッドＡは、基板４と、この基板４の上面に搭
載された光電変換のためのＬＥＤアレイ３と、前記基板
４の側面に搭載されたドライバ素子５とを含んで構成さ
れる。The print head A includes a substrate 4, an LED array 3 for photoelectric conversion mounted on the upper surface of the substrate 4, and a driver element 5 mounted on the side surface of the substrate 4.
このドライバ素子５はＬＥＤアレイ３に対して電流を供
給するためのものである。This driver element 5 is for supplying current to the LED array 3.
このように基板４上の実装場所が第１図に示すようにＬ
ＥＤアレイ３は上面に、ドライバ素子５は側面に実装さ
れており、感光ドラム１に対向した基板４の大きさ基板
長ｐを比較的縮小した構造とすることができる。In this way, the mounting location on the board 4 is located at L as shown in FIG.
The ED array 3 is mounted on the top surface, and the driver element 5 is mounted on the side surface, so that the size and substrate length p of the substrate 4 facing the photosensitive drum 1 can be relatively reduced.
電子写真式プリンタの小型化のため、感光ドラムｌが小
型になると帯電、転写、除電等、全て感光ドラム１上で
実施されるため各処理を行なうには印字ヘッドＡとして
も感光ドラム１に対向して占める構造の縮小が不可欠で
ある。Due to the miniaturization of electrophotographic printers, when the photosensitive drum 1 becomes smaller, charging, transfer, static elimination, etc. are all performed on the photosensitive drum 1, so in order to perform each process, the print head A must face the photosensitive drum 1. It is essential to reduce the structure occupied by
印字ヘッドＡの大きさは基板４の大きさに依存しており
、第１図に示すように基板４上の２面を使って実装する
ことにより感光ドラム１に対向する基板４の基板長ρの
縮小が可能となる。The size of the print head A depends on the size of the substrate 4, and by mounting it using two sides of the substrate 4 as shown in FIG. can be reduced.
本発明の印字ヘッドは、ＬＥＤアレイとドライバ素子を
各々キバンの別の表面上に実装することにより、小型化
を達成できるという効果がある。The print head of the present invention has the advantage that miniaturization can be achieved by mounting the LED array and driver elements on separate surfaces of the printer.
第１図は本発明の一実施例を含む電子写真式プリンタの
一例を示す正面図、第２図は従来の一例を含む電子写真
式プリンタの一例を示す正面図である。
Ａ、Ａ’・・・・・・印字ヘッド、
１・・・・・・感光ドラム、２・・・・・・レンズ、３
・・・・・・ＬＥＤアレイ、４，４′・・・・・・基板
、訃・・・・・ドライバ素子、
ρ、β′・・・・・・基板長。
代理人 弁理士 内 原 晋
茅 ２ 回
芽 ブ ＴンζＩFIG. 1 is a front view showing an example of an electrophotographic printer including an embodiment of the present invention, and FIG. 2 is a front view showing an example of an electrophotographic printer including a conventional example. A, A'...Print head, 1...Photosensitive drum, 2...Lens, 3
...LED array, 4,4'...board, driver element, ρ, β'...board length. Agent Patent Attorney Shinka Uchihara
Claims (1)
として変換して出力するＬＥＤアレイと、前記基板の側
面に搭載され前記ＬＥＤアレイを駆動するためドライバ
素子とを含むことを特徴とする印字ヘッド。Printing characterized by comprising: a substrate; an LED array mounted on the top surface of the substrate for converting and outputting print data as optical output; and a driver element mounted on the side surface of the substrate for driving the LED array. head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63017920A JPH01192571A (en) | 1988-01-27 | 1988-01-27 | Printing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63017920A JPH01192571A (en) | 1988-01-27 | 1988-01-27 | Printing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01192571A true JPH01192571A (en) | 1989-08-02 |
Family
ID=11957200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63017920A Pending JPH01192571A (en) | 1988-01-27 | 1988-01-27 | Printing head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01192571A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0541803U (en) * | 1991-11-14 | 1993-06-08 | 沖電気工業株式会社 | Optical printhead mounting structure |
-
1988
- 1988-01-27 JP JP63017920A patent/JPH01192571A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0541803U (en) * | 1991-11-14 | 1993-06-08 | 沖電気工業株式会社 | Optical printhead mounting structure |
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