239DP-2330/3030MAR 2005Ver. 2.1DP-2310/30106.4. Mechanical Operation6.4.1. Scanning Mechanism (Flatbed)1. Scanning MechanismThe Scanning Mechanism consisting of Lens, CCD PCB Assy (207), Mirrors, Xenon Lamp (204), LampBase Bracket (224) and Mirror 2 Bracket (233), is used to scan originals.• The Mirror 1 (264) and Mirrors 2 (265) reflect image information, in the form of light, through the Lens.• The Lens focuses the image information and passes it to the CCD.• The CCD, mounted on the CCD PC Board, converts the image information into an electrical signal.• The Inner and Outer Timing Belts (202 & 203) driven by the Stepping Motor (201), move the ScannerAssembly.2. Transmit Mechanisma. When ADF is used, originals are scanned on the Glass S (559). The Glass Assembly (557) is usedwhen scanning on the Platen.b. The Scanning point is established by the Size Sensor 1 (270).c. Document size is automatically set by the Original Size Sensor (1045) or manually set when thePlaten is used.d. The Transmit Mechanism starts feeding and scanning originals based on the above Document SizeSetting.e. When scanning is completed, the Stepping Motor (201) stops rotating and the Lamp Base andMirror 2 Brackets (224 & 233) return to the standby position.During scanning, the Lamp Base Bracket (224) and Mirror 2 Bracket (233) move in the direction of theBlack arrow and while returning to standby position, it moves in the direction of the White arrow asshown in the illustration below. The location of these two brackets are established by the Size Sensor 1(270) and the scanning length is established by the setting on the Touch Panel. The following illustratesthe Drive system.Xenon Lamp (204)Mirror 1 (264)Reflection Plate (231)Glass S (559)Glass Assembly (557)Outer Timing Belt (203)Inner Timing Belt (202)Mirror 2 (265)Mirror 2 (265)Lamp Base Bracket (224)Mirror 2 Bracket (233)Stepping Motor (201)LensCCD Assembly (207)Size Sensor 1 (270)
