Table Of Contents - Canon Color Image Reader - L1 Service Manual

Color Image Reader - L1
Color Image Reader - L1
1
Product Outline
Characteristic ------------------------------------------------------------------1-1
High speed 2-side scan-at one time (DADF) ------------------------------- 1-1
High capacity pickup tray (DADF) --------------------------------------------- 1-1
Next generation scanner unit (DADF/Reader)------------------------------ 1-1
Specification --------------------------------------------------------------------1-1
Name of each area -----------------------------------------------------------1-2
External view ------------------------------------------------------------------------ 1-2
Sectional view ---------------------------------------------------------------------- 1-2
Option configuration ----------------------------------------------------------1-2
2
Technology
Basic configuration -----------------------------------------------------------2-1
Function configuration ------------------------------------------------------------ 2-1
Parts configuration ----------------------------------------------------------------- 2-1
Overview of power circuit -------------------------------------------------------- 2-2
Reader controller PCB ------------------------------------------------------------ 2-2
Scanner unit ------------------------------------------------------------------------- 2-3
Basic sequence -------------------------------------------------------------------- 2-4
Controls --------------------------------------------------------------------------2-6
Scanner drive control ------------------------------------------------------------- 2-6
Original size detection ------------------------------------------------------------ 2-7
Dust detection control ------------------------------------------------------------2-12
Magnification change ------------------------------------------------------------2-16
Image processing -----------------------------------------------------------------2-16
Fan -----------------------------------------------------------------------------------2-18
Power unit --------------------------------------------------------------------------2-18
Service work -----------------------------------------------------------------------2-19
Contents
3
Periodic Servicing
Periodic Servicing List -------------------------------------------------------3-1
4
Parts Replacing and Cleaning
Parts List ------------------------------------------------------------------------4-1
External Covers -------------------------------------------------------------------- 4-1
Main unit ----------------------------------------------------------------------------- 4-1
Motor ---------------------------------------------------------------------------------- 4-2
Fan ------------------------------------------------------------------------------------ 4-2
Sensor -------------------------------------------------------------------------------- 4-3
PCB ----------------------------------------------------------------------------------- 4-3
Main unit -------------------------------------------------------------------------4-4
Removing the Scanner unit ----------------------------------------------------- 4-4
Periodical/Consumable parts, Spots to Clean -------------------------4-6
Turndown Mirror/Free Curved Mirror Cleaning ----------------------------- 4-6
5
Adjustments
Overview ------------------------------------------------------------------------5-1
Adjustment Method -----------------------------------------------------------5-3
Measurement during Reader Controller PCB Replacement and After
RAM Clear --------------------------------------------------------------------------- 5-3
Processing after Scanner Unit Replacement ------------------------------- 5-5
Processing after Copyoard Glass Replacement ------------------------- 5-7