Oki MPS2731mc - Document Table Structure; Jam Detection; Overview

44952001TH Rev.2
2-23
Oki Data CONFIDENTIAL
2. DESCRIPTION OF OPERATION
2.3.1.5 Jam detection
Documentjamis detectedbythesensorsshownin theillustration.Checktimingofthe
documentjamdetectionhasalreadybeenmemorizedintheROMofthesensormainPCB
beforehandsothatjamoccurrencecanbejudgedfromtheinformationifadocumentexitsor
not, at the corresponding sensor block.
PI11
PI12
PI13
PI14
PI11 : Regist paper sensor
PI12 : Reverse paper sensor
PI13 : Cover open/close sensor
PI14 : Document set sensor
2.3.2 Document table structure
2.3.2.1 Overview
Flatbed unit consist of Cover-Top-Assy, Frame-Bottom-Assy, Carriage-Assy and Flatbed drive
block.
The lamp (LED) is located on top of the Carriage-Assy. The light imadiated by the lamp (LED)
rodrenzeinthisorderandreachestheCMOSSensor.