Ricoh D146 Service Manual page 318

Controller Unit
Differences between operation panels from 2 vendors
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Operation panel upper cover
There is no difference in appearance, but there is a difference in internal layout.
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LCD bracket
There is a difference in the shape of the bracket and the stamp inside the blue circle.
S Co.: S stamp
C Co.: CM stamp
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Use of FFC (Flexible Flat Cable)
For S Co., FFC is used, but for C Co., instead of an FFC, a cable integrated with the LCD
(orange) is used.
D146/D147/D148/D149/D150 4-24 SM