Ricoh SAVIN D0AP - Page 19

SM xiii D0AP/D0C4/D0C5/D0C6/M0BQ/M0D1
7.5 LED EXPOSURE ..................................................................................................... 7-33
7.5.1 COMPONENT LAYOUT ................................................................................ 7-33
7.5.2 MECHANISM ................................................................................................ 7-33
Writing Method .................................................................................................. 7-33
LED Head ......................................................................................................... 7-34
LED Head Cleaning ........................................................................................... 7-35
Scanner Feedback Control (MF Model Only) ..................................................... 7-36
7.6 PCDU, TONER CARTRIDGE .................................................................................. 7-38
7.6.1 COMPONENT LAYOUT ................................................................................ 7-38
7.6.2 SEPARATING THE TONER CARTRIDGE AND PCDU .................................. 7-39
7.6.3 PCDU (PHOTO CONDUCTOR DEVELOPMENT UNIT) ................................ 7-40
PCDU Component Layout ................................................................................. 7-40
PCDU Mechanism ............................................................................................. 7-40
PCDU Near End/ End Detection ........................................................................ 7-44
7.6.4 TONER CARTRIDGE .................................................................................... 7-46
Overview ........................................................................................................... 7-46
Toner Cartridge Mechanism ............................................................................... 7-46
Toner Near End/ End Detection ......................................................................... 7-48
7.7 IMAGE TRANSFER AND PAPER SEPARATION ..................................................... 7-51
7.7.1 COMPONENT LAYOUT ................................................................................ 7-51
7.7.2 MECHANISM ................................................................................................ 7-51
Image Transfer/ Paper Separation ..................................................................... 7-51
Transfer Roller Cleaning .................................................................................... 7-52
7.7.3 RELATED SPS .............................................................................................. 7-53
7.8 IMAGE FUSING....................................................................................................... 7-54
7.8.1 COMPONENT LAYOUT ................................................................................ 7-54
7.8.2 MECHANISM ................................................................................................ 7-54
Fusing Mechanism ............................................................................................ 7-54
Thermal Control Mechanism .............................................................................. 7-55
Overheat Protection .......................................................................................... 7-56
Fusing Pressure Automatic Release Mechanism ............................................... 7-57
New Unit Detection ............................................................................................ 7-58
CPM Down Control ............................................................................................ 7-59
7.8.3 RELATED SPS .............................................................................................. 7-60
7.9 PAPER FEED .......................................................................................................... 7-61
7.9.1 COMPONENT LAYOUT ................................................................................ 7-61
7.9.2 MECHANISM ................................................................................................ 7-61
Paper Feed Operation ....................................................................................... 7-61
Tray Paper Detection ......................................................................................... 7-64