Ricoh D146 Service Manual page 13

Scanner Front Cover .......................................................................... 4-28
Scanner Left Cover ............................................................................ 4-28
4.6.2 EXPOSURE GLASS ....................................................................... 4-29
4.6.3 EXPOSURE LAMP (LED) ............................................................... 4-30
4.6.4 SCANNER MOTOR ........................................................................ 4-31
4.6.5 LENS BLOCK ................................................................................. 4-33
4.6.6 ORIGINAL SIZE SENSOR .............................................................. 4-34
4.6.7 SIO .................................................................................................. 4-34
4.6.8 SCANNER HP SENSOR ................................................................ 4-35
4.6.9 DF POSITION SENSOR ................................................................. 4-36
4.6.10 ADJUSTING THE SCANNER WIRE ......................................... 4-37
Scanner Wire (Front) .......................................................................... 4-37
Scanner wire assembly (front side) .................................................... 4-39
Scanner position adjustment .............................................................. 4-41
Scanner Wire (Rear) .......................................................................... 4-42
Scanner Wire Assembly (rear side) .................................................... 4-45
4.6.11 MODIFYING THE SCANNER (CONTACT/CONTACTLESS) WHEN
USING ARDF ........................................................................................... 4-45
Procedure for the ADF ....................................................................... 4-45
Procedure for the scanner .................................................................. 4-48
4.6.12 MODIFYING THE SCANNER (CONTACT/CONTACTLESS) WHEN
USING SPDF ........................................................................................... 4-48
Procedure for the SPDF ..................................................................... 4-48
Procedure for the scanner .................................................................. 4-50
4.7 LASER UNIT ............................................................................................ 4-51
4.7.1 LASER UNIT ................................................................................... 4-52
Before Replacement .......................................................................... 4-52
Removing ........................................................................................... 4-52
Installing a New Laser Unit ................................................................. 4-53
Adjustment after replacing the laser unit ............................................ 4-54
4.7.2 POLYGON MOTOR ........................................................................ 4-55
Adjustment after replacing the polygon motor .................................... 4-56
4.7.3 IMAGING TEMPERATURE SENSOR (THERMISTOR) ................. 4-56
4.8 PCDU ....................................................................................................... 4-57
4.8.1 NOTES WHEN REPLACING A PCDU ........................................... 4-57
D146/D147/ D148 .............................................................................. 4-57
D149/D150 ......................................................................................... 4-57
4.8.2 PCDU .............................................................................................. 4-58
Adjustment before replacing the PCDU.............................................. 4-58
D146/D147/D148/D149/D150 viii SM