SM vii D017/D018/D019/D020/D084/D085
4.7.5 PRESSURE ROLLER/CLEANING ROLLER .................................. 4-43
4.7.6 PAPER EXIT SENSOR/PAPER OVERFLOW SENSOR ................ 4-44
4.8PAPER FEED .......................................................................................... 4-45
4.8.1 FEED ROLLER: TRAY 1 ................................................................. 4-45
4.8.2 FEED ROLLER: TRAY 2 ................................................................. 4-46
4.8.3 FRICTION PAD ............................................................................... 4-46
4.8.4 PAPER END SENSOR ................................................................... 4-47
4.8.5 PAPER TRAY LIFT MOTORS ........................................................ 4-48
4.8.6 REGISTRATION CLUTCH .............................................................. 4-49
4.8.7 PAPER FEED CLUTCHES ............................................................. 4-50
Lower Paper Feed Clutch ................................................................... 4-50
Upper Paper Feed Clutch ................................................................... 4-50
4.8.8 RELAY CLUTCHES ........................................................................ 4-51
4.8.9 UPPER/LOWER PAPER SIZE SENSORS ..................................... 4-52
4.8.10 REGISTRATION SENSOR ......................................................... 4-53
4.8.11 UPPER, LOWER RELAY SENSORS ......................................... 4-56
4.8.12 DUST COLLECTION BIN ........................................................... 4-57
4.9PCBS AND OTHER ITEMS ..................................................................... 4-58
4.9.1 CONTROLLER BOARD .................................................................. 4-58
Before replacing the controller board in the model without HDD ........ 4-58
Replacement Procedure ..................................................................... 4-58
After installing the controller board ..................................................... 4-60
4.9.2 NVRAM ........................................................................................... 4-60
4.9.3 BCU BOARD ................................................................................... 4-62
4.9.4 POWER PACK ................................................................................ 4-63
4.9.5 MAIN MOTOR ................................................................................. 4-63
4.9.6 PSU ................................................................................................ 4-64
4.9.7 SIO .................................................................................................. 4-65
Monochrome Scanner Unit (D017/D019) ........................................... 4-65
Color Scanner Unit (D018/D020/D084/D085)..................................... 4-66
4.9.8 SIU .................................................................................................. 4-67
4.9.9 IPU .................................................................................................. 4-68
4.9.10 HDD ............................................................................................ 4-69
4.10 COPY ADJUSTMENTS: PRINTING/SCANNING ............................... 4-71
4.10.1 PRINTING ................................................................................... 4-71
Registration - Leading Edge/Side-to-Side .......................................... 4-71
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