Ricoh A151, Field Service Manual

Page: 14 / 397

3. DEVELOPMENT AND TONER SUPPLY . . . . . . 5-25
3.1 DEVELOPMENT UNIT REMOVAL . . . . . . . . . . . . 5-25
3.2 TONER SUPPLY UNIT REMOVAL . . . . . . . . . . . . 5-26
3.3 DEVELOPER REPLACEMENT . . . . . . . . . . . . . 5-27
3.4 INLET SEAL REMOVAL . . . . . . . . . . . . . . . . 5-28
3.5 TONER SUPPLY CLUTCH REPLACEMENT . . . . . . . . 5-29
3.6 DEVELOPMENT BIAS VOLTAGE ADJUSTMENT (SP9-38) . . 5-30
4. CLEANING . . . . . . . . . . . . . . . . . . 5-31
4.1 CLEANING UNIT REMOVAL . . . . . . . . . . . . . . 5-31
4.2 CLEANING BLADE REPLACEMENT . . . . . . . . . . . 5-32
4.3 USED TONER COLLECTION . . . . . . . . . . . . . 5-33
4.4 ENTRANCE SEAL REPLACEMENT . . . . . . . . . . . 5-34
5. PAPER FEED . . . . . . . . . . . . . . . . . 5-35
5.1 FEED ROLLER REPLACEMENT . . . . . . . . . . . . 5-35
5.2 PAPER TRAY SWITCH REPLACEMENT . . . . . . . . . 5-37
5.3 RELAY SENSOR AND REGISTRATION SENSOR REPLACEMENT 5-38
5.4 RELAY ROLLER CLUTCH, PAPER FEED CLUTCH AND
REGISTRATION CLUTCH REPLACEMENT . . . . . . . . 5-40
6. AROUND THE DRUM . . . . . . . . . . . . . 5-42
6.1 DRUM REPLACEMENT . . . . . . . . . . . . . . . . 5-42
6.2 QUENCHING LAMP REPLACEMENT . . . . . . . . . . 5-44
6.3 ERASE LAMP REPLACEMENT . . . . . . . . . . . . . 5-45
6.4 CHARGE CORONA WIRE REPLACEMENT . . . . . . . . 5-46
6.5 CHARGE CORONA GRID PLATE REPLACEMENT . . . . . 5-47
6.6 TRANSFER/SEPARATION CORONA WIRE REPLACEMENT . 5-48
6.7 ID SENSOR REPLACEMENT . . . . . . . . . . . . . 5-51
6.8 PICK-OFF PAWL REPLACEMENT . . . . . . . . . . . . 5-52
6.9 TRANSFER/SEPARATION POWER PACK REPLACEMENT . 5-53
A151/A152/A202/A203 iv FSM