Canon Color Image Reader - L1 Service Manual

Also see for L1: Installation procedures Instructions

Canon Color Image Reader - L1 Service Manual Manual pdf 5 page image

ContentsColor Image Reader - L11 Product OutlineCharacteristic ------------------------------------------------------------------1-1High speed 2-side scan-at one time (DADF) ------------------------------- 1-1High capacity pickup tray (DADF) --------------------------------------------- 1-1Next generation scanner unit (DADF/Reader)------------------------------ 1-1Specification --------------------------------------------------------------------1-1Name of each area -----------------------------------------------------------1-2External view ------------------------------------------------------------------------ 1-2Sectional view ---------------------------------------------------------------------- 1-2Option configuration ----------------------------------------------------------1-22 TechnologyBasic configuration -----------------------------------------------------------2-1Function configuration ------------------------------------------------------------ 2-1Parts configuration----------------------------------------------------------------- 2-1Overview of power circuit -------------------------------------------------------- 2-2Reader controller PCB------------------------------------------------------------ 2-2Scanner unit ------------------------------------------------------------------------- 2-3Basic sequence -------------------------------------------------------------------- 2-4Controls--------------------------------------------------------------------------2-6Scanner drive control ------------------------------------------------------------- 2-6Original size detection ------------------------------------------------------------ 2-7Dust detection control------------------------------------------------------------2-12Magnification change ------------------------------------------------------------2-16Image processing -----------------------------------------------------------------2-16Fan -----------------------------------------------------------------------------------2-18Power unit --------------------------------------------------------------------------2-18Service work -----------------------------------------------------------------------2-193 Periodic ServicingPeriodic Servicing List -------------------------------------------------------3-14 Parts Replacing and CleaningParts List ------------------------------------------------------------------------4-1External Covers -------------------------------------------------------------------- 4-1Main unit ----------------------------------------------------------------------------- 4-1Motor ---------------------------------------------------------------------------------- 4-2Fan ------------------------------------------------------------------------------------ 4-2Sensor -------------------------------------------------------------------------------- 4-3PCB ----------------------------------------------------------------------------------- 4-3Main unit-------------------------------------------------------------------------4-4Removing the Scanner unit ----------------------------------------------------- 4-4Periodical/Consumable parts, Spots to Clean -------------------------4-6Turndown Mirror/Free Curved Mirror Cleaning ----------------------------- 4-65 AdjustmentsOverview ------------------------------------------------------------------------5-1Adjustment Method -----------------------------------------------------------5-3Measurement during Reader Controller PCB Replacement and AfterRAM Clear --------------------------------------------------------------------------- 5-3Processing after Scanner Unit Replacement ------------------------------- 5-5Processing after Copyoard Glass Replacement ------------------------- 5-7Color Image Reader - L1