Ricoh D146 Service Manual page 258

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When installing more than one SD card, perform the merge operation.
3. Switch the power ON.
4. Attach the SD card slot cover.( ×1)
5. Stick the "Adobe PostScript3" decal on the front face of the MFP.
6. After switching the power ON, check that the system settings list is output, and that the option
is recognized correctly.
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The PDF firmware installed as standard contains a program required to print PS3 data as
default. However, this PS3 program is normally disabled.
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The PS3 firmware is a dongle (key) which enables PS3 data printing functions. When the
PS3 firmware is installed, the PS3 program in the PDF firmware is enabled. Due to this
specification, the self-diagnosis result report shows the ROM part number/software
version of the PDF firmware contained in the PS3 program.
SM 2-187 D146/D147/D148/D149/D150
PS3 Card Type M4/M3