JPH0358667U

JPH0358667U -

Info

Publication number: JPH0358667U
Application number: JP11931689U
Authority: JP
Priority date: 1989-10-12
Filing date: 1989-10-12
Publication date: 1991-06-07

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図ないし第３図は本考案による画像記録装
置の第１実施例を示す図であり、第１図は本考案
が適用されたレーザプリンタの構成図、第２図は
制御系の回路図、第３図ａは反射式光センサの斜
視図、同図ｂはその側面図、同図ｃはその正面図
である。第４図ａ〜ｃは本考案の第２実施例を示
す図であり、同図ａは反射式光センサの斜視図、
同図ｂはその側面図、同図ｃはその正面図である
。第５図は本考案の第３実施例を示す制御系の回
路図である。第６図は従来の感光体を含む交換キ
ツトの構成図、第７図ａ〜ｃは従来の反射式光セ
ンサを示す図であり、同図ａはその斜視図、同図
ｂはその側面図、同図ｃはその正面図である。１……感光体、６……反射式光センサ、６ａ…
…ＬＥＤ（発光部）、６ｂ……フオト・トランジ
スタ（受光部）、４３，４４……シリンドリカル
レンズ。 1 to 3 are diagrams showing a first embodiment of an image recording device according to the present invention, FIG. 1 is a configuration diagram of a laser printer to which the present invention is applied, and FIG. 2 is a circuit diagram of a control system. 3A is a perspective view of the reflective optical sensor, FIG. 3B is a side view thereof, and FIG. 3C is a front view thereof. FIGS. 4a to 4c are views showing a second embodiment of the present invention, and FIG. 4a is a perspective view of a reflective optical sensor;
Figure b is a side view thereof, and figure c is a front view thereof. FIG. 5 is a circuit diagram of a control system showing a third embodiment of the present invention. FIG. 6 is a configuration diagram of a conventional replacement kit including a photoreceptor, and FIGS. 7 a to 7 c are diagrams showing a conventional reflective optical sensor, in which figure a is a perspective view and figure b is a side view. , and Figure c is its front view. 1... Photoreceptor, 6... Reflective optical sensor, 6a...
...LED (light emitting section), 6b...photo transistor (light receiving section), 43, 44...cylindrical lens.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

着脱可能な感光体と、この感光体の有無を検知
する反射式光センサとを備え、前記反射式光セン
サが前記感光体に光を投射する発光部と前記感光
体からの反射光を受光する受光部とを有する画像
記録装置において、前記反射式光センサの少くと
も前記発光部の出射口近傍に光を線状に整形する
光整形光学系を配置したことを特徴とする画像記
録装置。 It includes a detachable photoreceptor and a reflective optical sensor that detects the presence or absence of the photoreceptor, and the reflective optical sensor receives reflected light from a light emitting part that projects light onto the photoreceptor and the photoreceptor. An image recording device having a light receiving section, characterized in that a light shaping optical system for shaping light into a linear shape is disposed at least in the vicinity of an exit opening of the light emitting section of the reflective optical sensor.