Ricoh D158 Service Manual page 10

4.7.7 AFTER REPLACEMENT OR ADJUSTMENT ................................. 4-56
4.8 TONER SUPPLY MOTOR ....................................................................... 4-57
4.9 PAPER FEED SECTION ......................................................................... 4-58
4.9.1 PAPER FEED ROLLER .................................................................. 4-58
4.9.2 FRICTION PAD .............................................................................. 4-59
4.9.3 EXIT SENSOR ................................................................................ 4-60
4.9.4 REGISTRATION ROLLER .............................................................. 4-62
4.9.5 REGISTRATION CLUTCH ............................................................. 4-64
4.9.6 REGISTRATION SENSOR ............................................................. 4-65
4.9.7 UPPER PAPER FEED CLUTCH .................................................... 4-66
4.9.8 RELAY CLUTCH............................................................................. 4-67
4.9.9 RELAY SENSOR ............................................................................ 4-67
4.9.10 LOWER PAPER FEED CLUTCH (TWO-TRAY MODELS ONLY)4-68
4.9.11 VERTICAL TRANSPORT SENSOR (TWO-TRAY MODELS ONLY) ..
.................................................................................................... 4-68
4.9.12 PAPER SIZE SWITCH ............................................................... 4-69
4.9.13 PAPER END SENSOR ............................................................... 4-69
Paper End Sensor: T1 ........................................................................ 4-69
Paper End Sensor: T2 (Two-tray Models Only) .................................. 4-70
4.9.14 TRAY LIFT MOTOR ................................................................... 4-70
4.9.15 TRAY LIFT SENSOR .................................................................. 4-72
4.9.16 BY-PASS PAPER LENGTH SENSOR ....................................... 4-73
4.9.17 BY-PASS PAPER WIDTH SENSOR .......................................... 4-74
When replacing the by-pass paper width sensor ................................ 4-74
4.9.18 BY-PASS FEED ROLLER AND BY-PASS PAPER END SENSOR ....
.................................................................................................... 4-75
4.9.19 BY-PASS FEED CLUTCH AND BY-PASS TRAY LIFT CLUTCH 4-76
4.9.20 BY-PASS TRAY LIFT SENSOR ................................................. 4-77
4.10 IMAGE TRANSFER ........................................................................... 4-78
4.10.1 IMAGE TRANSFER ROLLER ..................................................... 4-78
4.10.2 IMAGE DENSITY SENSOR........................................................ 4-79
4.11 FUSING .............................................................................................. 4-80
4.11.1 FUSING UNIT ............................................................................. 4-80
4.11.2 THERMISTOR ............................................................................ 4-80
4.11.3 FUSING LAMPS ......................................................................... 4-81
4.11.4 HOT ROLLER STRIPPER PAWLS ............................................ 4-82
4.11.5 HOT ROLLER ............................................................................. 4-82
4.11.6 THERMOSTAT ........................................................................... 4-83
D158/D159/D160/D161/D170 vi SM