Ricoh M001 Service Manual page 17

LD Safety Mechanisms ........................................................................ 6-8
6.3.3 CARTRIDGE OVERVIEW............................................................... 6-10
6.3.4 DRUM CHARGE............................................................................. 6-11
6.3.5 DEVELOPMENT............................................................................. 6-12
Toner Supply and Development ......................................................... 6-12
Toner Density Control ........................................................................ 6-13
6.3.6 TONER END DETECTION ............................................................. 6-15
Overview ............................................................................................ 6-15
Toner End Sensor .............................................................................. 6-15
Main Motor Rotation Count................................................................. 6-16
Toner Overflow Prevention................................................................. 6-16
Summary ............................................................................................ 6-18
6.4 PAPER FEED .......................................................................................... 6-20
6.4.1 OVERVIEW..................................................................................... 6-20
6.4.2 PAPER TRAY ................................................................................. 6-22
Tray Extension ................................................................................... 6-22
Paper Lift ............................................................................................ 6-23
Paper Feed and Registration.............................................................. 6-24
Paper Size Detection.......................................................................... 6-25
Paper End Detection .......................................................................... 6-26
Remaining Paper Detection................................................................ 6-27
6.4.3 BY-PASS TRAY.............................................................................. 6-28
6.5 IMAGE FUSING AND PAPER EXIT ........................................................ 6-29
6.5.1 OVERVIEW..................................................................................... 6-29
6.5.2 FUSING DRIVE .............................................................................. 6-30
6.5.3 FUSING ENTRANCE AND GUIDE SHAFT .................................... 6-30
6.5.4 PRESSURE ROLLER ..................................................................... 6-31
6.5.5 NEW FUSING UNIT DETECTION .................................................. 6-32
6.5.6 FUSING TEMPERATURE CONTROL ............................................ 6-33
Overheat Protection ........................................................................... 6-34
6.5.7 PAPER EXIT................................................................................... 6-35
6.5.8 ENERGY SAVER MODE ................................................................ 6-36
6.6 CONTROLLER FUNCTIONS................................................................... 6-37
SM v M001