Canon imageCLASS LBP6780dn Service Manual page 5

XPS -------------------------------------------------------------------------------------------1-21
PDF -------------------------------------------------------------------------------------------1-22
AdobePS -------------------------------------------------------------------------------------1-22
2
Technology
Basic Operation ---------------------------------------------------------------2-2
Function Structure ----------------------------------------------------------------- 2-2
Sequence of Operation ------------------------------------------------------2-3
Outline -------------------------------------------------------------------------------- 2-3
Laser Exposure System -----------------------------------------------------2-4
Outline -------------------------------------------------------------------------------- 2-4
Optical Unit Failure Detection --------------------------------------------------- 2-4
Image Formation System ---------------------------------------------------2-5
Outline -------------------------------------------------------------------------------- 2-5
Image Formation Process ------------------------------------------------------- 2-5
Outline ----------------------------------------------------------------------------------------- 2-5
Latent image formation block ------------------------------------------------------------ 2-6
Developing block---------------------------------------------------------------------------- 2-6
Transfer block ------------------------------------------------------------------------------- 2-7
Fixing block ----------------------------------------------------------------------------------- 2-7
Drum cleaning block ----------------------------------------------------------------------- 2-7
High-voltage Power Supply ----------------------------------------------------- 2-8
Outline ----------------------------------------------------------------------------------------- 2-8
Fixing System ------------------------------------------------------------------2-9
Fixing control circuit --------------------------------------------------------------- 2-9
Outline ----------------------------------------------------------------------------------------- 2-9
Fixing temperature control---------------------------------------------------------------- 2-9
Protective function -------------------------------------------------------------------------2-10
Failure detection ---------------------------------------------------------------------------2-10
Pickup Feeding System --------------------------------------------------- 2-11
Outline ------------------------------------------------------------------------------- 2-11
Jam Detection ---------------------------------------------------------------------2-12
Outline ----------------------------------------------------------------------------------------2-12
Pickup delay jam 1 ------------------------------------------------------------------------2-12
Pickup stationary jam ---------------------------------------------------------------------2-12
Delivery delay jam -------------------------------------------------------------------------2-12
Delivery stationary jam -------------------------------------------------------------------2-12
Internal stationary jam 1 -----------------------------------------------------------------2-12
Internal stationary jam 2 -----------------------------------------------------------------2-13
Door open jam ------------------------------------------------------------------------------2-13
Fixing paper wrapping jam --------------------------------------------------------------2-13
Duplex re-pickup jam ---------------------------------------------------------------------2-13
Controller System ----------------------------------------------------------- 2-14
Outline -------------------------------------------------------------------------------2-14
DC Controller ----------------------------------------------------------------------2-14
Outline ----------------------------------------------------------------------------------------2-14
Motor control --------------------------------------------------------------------------------2-15
Fan control ----------------------------------------------------------------------------------2-16
Low-voltage Power Supply -----------------------------------------------------2-16
Outline ----------------------------------------------------------------------------------------2-16
Protective function -------------------------------------------------------------------------2-17
Safety -----------------------------------------------------------------------------------------2-17
Embedded RDS ------------------------------------------------------------- 2-18
Product Overview -----------------------------------------------------------------2-18
Overview -------------------------------------------------------------------------------------2-18
Features and benefits --------------------------------------------------------------------2-18
Service cautions -------------------------------------------------------------------2-18
E-RDS Setup -----------------------------------------------------------------------2-19
Confirmation and preparation in advance -------------------------------------------2-19
E-RDS setting items (service mode) --------------------------------------------------2-19
Steps to E-RDS settings -----------------------------------------------------------------2-20
Initializing E-RDS settings ---------------------------------------------------------------2-23
FAQ -----------------------------------------------------------------------------------2-24
Troubleshooting -------------------------------------------------------------------2-25
Error code and strings -----------------------------------------------------------2-27
MEAP -------------------------------------------------------------------------- 2-29
Introduction -------------------------------------------------------------------------2-29
References by purpose ------------------------------------------------------------------2-29
About MEAP -----------------------------------------------------------------------2-29
Overview -------------------------------------------------------------------------------------2-29
About SMS -------------------------------------------------------------------------2-30
Overview -------------------------------------------------------------------------------------2-30
About the MEAP Application Management Screen -------------------------------2-30
About the MEAP Application Installation Screen ----------------------------------2-30