Ricoh D146 Service Manual page 1857

4. SERVICE TABLES
4.1 CAUTIONS

Never turn off the main power switch when the power LED is lit or flashing. To avoid
damaging the hard disk or memory, press the operation power switch to switch the power
off, wait for the power LED to go off, and then switch the main power switch off.

The main power LED lights or flashes while the platen cover or ARDF is open, while the
main machine is communicating with a facsimile or the network server, or while the
machine is accessing the hard disk or memory for reading or writing data.
SM 81 D163