Ricoh D127 - Page 8

D127/D128 iv SM
4.7 EXHAUST FAN AND MAIN MOTOR ....................................................... 4-18
4.7.1 EXHAUST FAN ............................................................................... 4-18
4.7.2 MAIN MOTOR ................................................................................ 4-19
4.8 PAPER FEED .......................................................................................... 4-21
4.8.1 PAPER FEED ROLLER AND FRICTION PAD ............................... 4-21
4.8.2 PAPER END SENSOR ................................................................... 4-22
4.8.3 REGISTRATION SENSOR ............................................................. 4-23
4.8.4 BYPASS PAPER END SENSOR .................................................... 4-24
4.8.5 BYPASS FEED ROLLER ................................................................ 4-25
4.8.6 BYPASS FEED CLUTCH AND FRICTION PAD ............................. 4-26
4.8.7 PAPER FEED AND REGISTRATION CLUTCHES ........................ 4-27
4.9 IMAGE TRANSFER ................................................................................. 4-28
4.9.1 TRANSFER ROLLER ..................................................................... 4-28
4.9.2 ID SENSOR AND DUPLEX ROLLER ............................................. 4-29
4.9.3 DISCHARGE PLATE ...................................................................... 4-31
4.10 BICU AND CONTROLLER BOARD ................................................... 4-32
4.10.1 BICU ........................................................................................... 4-32
Preparation ......................................................................................... 4-32
Procedure ........................................................................................... 4-32
4.10.2 CONTROLLER BOARD.............................................................. 4-33
Preparation: ........................................................................................ 4-33
Procedure ........................................................................................... 4-33
When installing a new controller board............................................... 4-35
When replacing the NVRAM on the controller board .......................... 4-36
4.11 OTHER REPLACEMENTS ................................................................ 4-37
4.11.1 DUPLEX MOTOR ....................................................................... 4-37
4.11.2 HIGH-VOLTAGE POWER SUPPLY BOARD ............................. 4-38
4.11.3 PSU ............................................................................................ 4-39
4.11.4 CONTACT-RELEASE SOLENOID ............................................. 4-40
4.11.5 TONER SUPPLY MOTOR .......................................................... 4-40
4.11.6 FCU ............................................................................................ 4-41
Lithium Batteries................................................................................. 4-41
Procedure ........................................................................................... 4-41
4.12 LASER UNIT ...................................................................................... 4-43
4.12.1 LOCATION OF THE CAUTION DECAL ..................................... 4-43
4.12.2 LASER UNIT ............................................................................... 4-44
4.12.3 LD UNIT AND POLYGON MIRROR MOTOR ............................. 4-45
4.13 ARDF ................................................................................................. 4-46