Line Position Adjustment - Ricoh B230 Service Manual

6.3 SCANNING ......................................................................................... 6-16
6.3.1 OVERVIEW................................................................................ 6-16
6.3.2 SCANNER DRIVE ..................................................................... 6-17
6.3.3 ORIGINAL SIZE DETECTION ................................................... 6-18
6.3.4 ANTI-CONDENSATION HEATER ............................................. 6-19
6.4 IMAGE PROCESSING........................................................................ 6-20
6.4.1 OVERVIEW................................................................................ 6-20
6.4.2 SBU (SENSOR BOARD UNIT) .................................................. 6-20
6.4.3 IPU (IMAGE PROCESSING UNIT)............................................ 6-21
6.5 LASER EXPOSURE ........................................................................... 6-22
6.5.1 OVERVIEW................................................................................ 6-22
6.5.2 OPTICAL PATH ......................................................................... 6-23
6.5.3 LASER SYNCHRONIZING DETECTORS ................................. 6-24
6.5.4 LD SAFETY SWITCH ................................................................ 6-25
6.5.5 AUTOMATIC LINE POSITION ADJUSTMENT.......................... 6-26
6.6 PCU (PHOTO CONDUCTOR UNIT)................................................... 6-31
6.6.1 OVERVIEW................................................................................ 6-31
6.6.2 AROUND THE DRUM ............................................................... 6-32
6.6.3 DEVELOPMENT........................................................................ 6-35
6.7 TONER SUPPLY ................................................................................ 6-38
6.7.1 OVERVIEW................................................................................ 6-38
6.7.2 TONER SUPPLY MECHANISM ................................................ 6-39
6.7.3 TONER CARTRIDGE ................................................................ 6-41
6.8 WASTE TONER COLLECTION .......................................................... 6-42
6.8.1 TONER COLLECTION PATH AND DRIVE................................ 6-42
6.8.2 TONER COLLECTION BOTTLE SET/ NEAR-FULL/ FULL
DETECTION ....................................................................................... 6-44
6.9 IMAGE TRANSFER AND PAPER SEPARATION............................... 6-45
6.9.1 IMAGE TRANSFER ................................................................... 6-45
6.9.2 PAPER TRANSFER AND SEPARATION .................................. 6-51
6.10 PAPER FEED ................................................................................. 6-54
6.10.1 OVERVIEW.............................................................................. 6-54
6.10.2 DRIVE – TRAY 1, TRAY 2, AND BY-PASS TRAY .................. 6-55
6.10.3 PAPER LIFT – TRAYS 1 & 2 ................................................... 6-56
6.10.4 PAPER SIZE DETECTION – TRAYS 1 & 2 ............................. 6-57
6.10.5 PAPER HEIGHT DETECTION – TRAYS 1 & 2 ....................... 6-58
SM B230/B237/D042