INFORMATION PROCESSING APPARATUS AND IMAGE FORMING APPARATUS

To enable polygon surface being scanned to be properly detected even if noise occurs in a synchronous signal.SOLUTION: An information processing apparatus is provided that is connected to an image forming apparatus including: a laser beam source receiving image data and outputting light; a photorece...

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Bibliographic Details
Main Author AIDA JUNICHI
Format Patent
LanguageEnglish
Japanese
Published 19.03.2020
Subjects
CORRECTION OF TYPOGRAPHICAL ERRORS
i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME
LINING MACHINES
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
PRINTING
SELECTIVE PRINTING MECHANISMS
STAMPS
TRANSPORTING
TYPEWRITERS
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Summary:To enable polygon surface being scanned to be properly detected even if noise occurs in a synchronous signal.SOLUTION: An information processing apparatus is provided that is connected to an image forming apparatus including: a laser beam source receiving image data and outputting light; a photoreceptor; a polygonal mirror which has a plurality of reflection planes and rotates to deflect the laser beam using the plurality of reflection planes and scans the photoreceptor; and a generation part that generates a marking BD signal in accordance with the deflected laser beam. The information processing apparatus receives a marking signal and determines whether or not the received marking signal is a signal corresponding to a specific reflection plane out of the reflection planes of the polygonal mirror. The information processing apparatus, when the marking signal is the signal corresponding to the specific reflection plane, identifies that the reflection plane reflecting the light is the specific reflection plane (S101:Y,S102), and in other case (S101:N), identifies that the reflection plane reflecting light is a reflection plane to be scanned subsequently to the identified reflection plane (S105).SELECTED DRAWING: Figure 9 【課題】同期信号にノイズが発生しても走査されているポリゴン面を正しく検知することができる。【解決手段】画像データを受信して光を出力するレーザー光源と、感光体と、複数の反射面を有し、回転することにより前記複数の反射面を用いてレーザー光を偏向して感光体を走査するポリゴンミラーと、偏向されたレーザー光に応じてマーキングＢＤ信号を生成する生成部とを含む画像形成装置に接続される情報処理装置である。情報処理装置は、マーキング信号を受信し、受信されたマーキング信号がポリゴンミラーの反射面のうち特定の反射面に対応する信号であるか否かを判定する。マーキング信号が特定の反射面に対応する信号である場合には、光を反射した反射面を特定の反射面であると識別する（Ｓ１０１：Ｙ、Ｓ１０２）。その他の場合には（Ｓ１０１：Ｎ）、光を反射した反射面は、前回識別された反射面の次に走査される反射面であると識別する（Ｓ１０５）。【選択図】図９
Bibliography:Application Number: JP20180168253