Canon L100 Service Manual page 5

Laser ON/OFF Control ------------------------------------------------------------------- 2-11
Horizontal Sync Control ------------------------------------------------------------------ 2-11
Laser Control -----------------------------------------------------------------------2-12
Auto Power Control (APC) --------------------------------------------------------------2-12
Laser Scanner Motor Control --------------------------------------------------2-12
Overview -------------------------------------------------------------------------------------2-12
Scanner Motor Fault Detection ---------------------------------------------------------2-13
Service Tasks ----------------------------------------------------------------------2-13
At parts replacement ----------------------------------------------------------------------2-13
Maintenance --------------------------------------------------------------------------------2-13
Notes on service tasks -------------------------------------------------------------------2-13
Image Formation System ------------------------------------------------- 2-14
Overview/Configuration ---------------------------------------------------------2-14
Overview -------------------------------------------------------------------------------------2-14
Print Process --------------------------------------------------------------------------------2-14
Static Latent Image Formation Block -------------------------------------------------2-15
Development Block------------------------------------------------------------------------2-15
Transfer Block ------------------------------------------------------------------------------2-16
Fixing Block ---------------------------------------------------------------------------------2-16
Drum Cleaning Block ---------------------------------------------------------------------2-16
High-Voltage Control -------------------------------------------------------------2-17
Overview -------------------------------------------------------------------------------------2-17
Generating Primary Charging Bias ----------------------------------------------------2-17
Generating Developing Bias ------------------------------------------------------------2-17
Generating Transfer Bias ----------------------------------------------------------------2-17
Toner Cartridge --------------------------------------------------------------------2-18
Toner Level Detection --------------------------------------------------------------------2-18
Specification of Toner level display ----------------------------------------------------2-18
Operation when toner level is Low/Nearly Out -------------------------------------2-18
Toner Cartridge Absence/Presence Detection -------------------------------------2-19
Service Tasks ----------------------------------------------------------------------2-19
At parts replacement ----------------------------------------------------------------------2-19
Maintenance --------------------------------------------------------------------------------2-19
Notes on service tasks -------------------------------------------------------------------2-19
Fixing System ---------------------------------------------------------------- 2-20
Overview/Configuration ---------------------------------------------------------2-20
Overview -------------------------------------------------------------------------------------2-20
Main Parts of Fixing assembly ---------------------------------------------------------2-20
Various Control Mechanisms --------------------------------------------------2-21
Fixing Temperature Control -------------------------------------------------------------2-21
Protective Functions ----------------------------------------------------------------------2-21
Other Functions -------------------------------------------------------------------2-23
Throughput Down Control ---------------------------------------------------------------2-23
Service Tasks ----------------------------------------------------------------------2-24
At parts replacement ----------------------------------------------------------------------2-24
Maintenance --------------------------------------------------------------------------------2-24
Notes on service tasks -------------------------------------------------------------------2-24
Pickup Feed System ------------------------------------------------------- 2-25
Overview ----------------------------------------------------------------------------2-25
Overview -------------------------------------------------------------------------------------2-25
Detecting Jams --------------------------------------------------------------------2-26
Jam Detection Outline --------------------------------------------------------------------2-26
Delay Jam -----------------------------------------------------------------------------------2-26
Stationary Jam -----------------------------------------------------------------------------2-28
Other Jams ----------------------------------------------------------------------------------2-28
Service Tasks ----------------------------------------------------------------------2-29
At parts replacement ----------------------------------------------------------------------2-29
Maintenance --------------------------------------------------------------------------------2-29
Notes on service tasks -------------------------------------------------------------------2-29
3
Periodical Services
Periodically Replaced Parts ------------------------------------------------3-2
Periodically Replaced Parts ----------------------------------------------------- 3-2
Consumables ------------------------------------------------------------------3-2
Consumables ----------------------------------------------------------------------- 3-2
Periodical Service -------------------------------------------------------------3-2
Scheduled Servicing -------------------------------------------------------------- 3-2
Cleaning -------------------------------------------------------------------------3-2
4
Disassembly/Assembly
PREFACE -----------------------------------------------------------------------4-2
Outline -------------------------------------------------------------------------------- 4-2
List Of Parts --------------------------------------------------------------------4-3
External View ----------------------------------------------------------------------- 4-3
Front Side (L100/L170/L174/L250/L150 CHN/L150 KOR/L154) --------------- 4-3