Ricoh D146 Service Manual page 341

5. Attach the document reader guide plate. Be careful not to scratch the sheet [A].
6. Attach the ADF front cover, and return the ADF to its original position.
7. From the SP mode, change the DF density setting (SP4-688-001) from [106%] to [101%].
SM 4-47 D146/D147/D148/D149/D150
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