Table Of Contents - Canon LBP6670dn Series Service Manual

Contents
Safety Precautions
Safety Information ------------------------------------------------------------0-6
Laser Safety ------------------------------------------------------------------------- 0-6
CCDRH Regulation ---------------------------------------------------------------- 0-6
Toner Safety ------------------------------------------------------------------------- 0-6
About Toner ---------------------------------------------------------------------------------- 0-6
How to Handle Adhered Toner ---------------------------------------------------------- 0-6
Ozone Safety ----------------------------------------------------------------------- 0-6
How to Handle the Laser Scanner Unit -------------------------------------- 0-7
Points to Note when Replacing/Discarding a Lithium Battery ---------- 0-7
Points to Note when Performing Disassembly/Assembly---------------- 0-7
Product Description
Product Lineups ---------------------------------------------------------------1-2
Main unit ----------------------------------------------------------------------------- 1-2
Options ------------------------------------------------------------------------------- 1-2
Features -------------------------------------------------------------------------1-2
Specification --------------------------------------------------------------------1-3
Product Specifications ------------------------------------------------------------ 1-3
Printing Speed --------------------------------------------------------------------- 1-3
List of Parts ---------------------------------------------------------------------1-4
External View ----------------------------------------------------------------------- 1-4
Cross Sectional View ------------------------------------------------------------- 1-4
Operation ------------------------------------------------------------------------1-5
Control panel ------------------------------------------------------------------------ 1-5
Technology
Basic Operation ---------------------------------------------------------------2-2
Function Structure ----------------------------------------------------------------- 2-2
Sequence of Operation ------------------------------------------------------2-2
Outline -------------------------------------------------------------------------------- 2-2
Laser Exposure System -----------------------------------------------------2-3
Outline -------------------------------------------------------------------------------- 2-3
Optical Unit Failure Detection --------------------------------------------------- 2-3
Image Formation System ---------------------------------------------------2-4
Outline -------------------------------------------------------------------------------- 2-4
Image Formation Process ------------------------------------------------------- 2-4
Outline ----------------------------------------------------------------------------------------- 2-4
Latent image formation block ------------------------------------------------------------ 2-5
Developing block---------------------------------------------------------------------------- 2-5
Transfer block ------------------------------------------------------------------------------- 2-6
Fixing block ----------------------------------------------------------------------------------- 2-6
Drum cleaning block ----------------------------------------------------------------------- 2-6
High-voltage Power Supply ----------------------------------------------------- 2-7
Outline ----------------------------------------------------------------------------------------- 2-7
Fixing System ------------------------------------------------------------------2-8
Outline -------------------------------------------------------------------------------- 2-8
Fixing control circuit --------------------------------------------------------------- 2-9
Small Size Paper Printing Speed Control (Throughput Reduction Control) - 2-9
Fixing temperature control---------------------------------------------------------------2-10
Protective function -------------------------------------------------------------------------2-10
Failure detection --------------------------------------------------------------------------- 2-11
Pickup Feeding System --------------------------------------------------- 2-12
Outline -------------------------------------------------------------------------------2-12
Jam Detection ---------------------------------------------------------------------2-13
Outline ----------------------------------------------------------------------------------------2-13
Pickup Delay Jam -------------------------------------------------------------------------2-13
Pickup Stationary Jam--------------------------------------------------------------------2-13
Delivery Delay Jam ------------------------------------------------------------------------2-13
Fixing Paper Wrap Jam -----------------------------------------------------------------2-13
Delivery Stationary Jam ------------------------------------------------------------------2-13
Reverse Delay Jam -----------------------------------------------------------------------2-13
Reverse Stationary Jam -----------------------------------------------------------------2-14
Internal Residual Jam --------------------------------------------------------------------2-14
Door Open Jam ----------------------------------------------------------------------------2-14
Controller System ----------------------------------------------------------- 2-15
Outline -------------------------------------------------------------------------------2-15
DC Controller ----------------------------------------------------------------------2-15