JPS61121418U - - Google Patents
Info
- Publication number
- JPS61121418U JPS61121418U JP362485U JP362485U JPS61121418U JP S61121418 U JPS61121418 U JP S61121418U JP 362485 U JP362485 U JP 362485U JP 362485 U JP362485 U JP 362485U JP S61121418 U JPS61121418 U JP S61121418U
- Authority
- JP
- Japan
- Prior art keywords
- light
- photosensitive drum
- emitting element
- image
- printer head
- 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
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 4
Description
第１図は本考案の一実施例に係る光プリンタヘ
ツドの概観図、第２図はそこに用いられる露光ユ
ニツトの内部構成を示す説明図、第３図は各露光
ユニツトを不適当に配列した場合に露光されない
部分が生じることを示す説明図、第４図は本考案
の他の実施例に係る光プリンタヘツドの概観図、
第５図は従来の光プリンタヘツドを示す概観図で
ある。
１…感光ドラム、１０…露光ユニツト、１１…
ＬＥＤアレイ（発光素子アレイ）、１２…球面レ
ンズ、１３…ＬＥＤ素子列（発光素子列）、１４
…投影像。
Fig. 1 is an overview diagram of an optical printer head according to an embodiment of the present invention, Fig. 2 is an explanatory diagram showing the internal configuration of an exposure unit used therein, and Fig. 3 is an illustration of an arrangement of each exposure unit inappropriately. FIG. 4 is an overview diagram of an optical printer head according to another embodiment of the present invention; FIG.
FIG. 5 is an overview diagram showing a conventional optical printer head. 1... Photosensitive drum, 10... Exposure unit, 11...
LED array (light emitting element array), 12... Spherical lens, 13... LED element row (light emitting element array), 14
...Projected image.
Claims (1)
配設してなる発光素子アレイの各発光素子からの
光を前記感光ドラム上に結像させ、該感光ドラム
の全幅にわたつて画像の書き込みを行う光プリン
タヘツドにおいて、前記発光素子列の長さが前記
感光ドラムの全幅よりも短い発光素子アレイと光
学レンズ系とを組み合わせて各発光素子からの光
を感光ドラム上に縮小して結像させる露光ユニツ
トとなし、該露光ユニツトを複数個配列して前記
感光ドラムが全幅にわたつて露光されるようにし
たことを特徴とする光プリンタヘツド。 Light from each light-emitting element of a light-emitting element array formed by disposing a large number of light-emitting elements along the width direction of the photosensitive drum is formed into an image on the photosensitive drum, and an image is written over the entire width of the photosensitive drum. In the optical printer head that performs printing, a light emitting element array in which the length of the light emitting element row is shorter than the total width of the photosensitive drum is combined with an optical lens system to reduce the light from each light emitting element and form an image on the photosensitive drum. An optical printer head comprising: an exposure unit; a plurality of the exposure units are arranged so that the entire width of the photosensitive drum is exposed to light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP362485U JPS61121418U (en) | 1985-01-17 | 1985-01-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP362485U JPS61121418U (en) | 1985-01-17 | 1985-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61121418U true JPS61121418U (en) | 1986-07-31 |
Family
ID=30478428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP362485U Pending JPS61121418U (en) | 1985-01-17 | 1985-01-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61121418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008254418A (en) * | 2007-03-15 | 2008-10-23 | Seiko Epson Corp | Line head, and image formation apparatus and image formation method using the line head |
-
1985
- 1985-01-17 JP JP362485U patent/JPS61121418U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008254418A (en) * | 2007-03-15 | 2008-10-23 | Seiko Epson Corp | Line head, and image formation apparatus and image formation method using the line head |
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