Ricoh D146 Service Manual page 1607

Procedure
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When the power supply is switched OFF during firmware update, update is interrupted,
and the power is switched ON again, normal operation cannot be guaranteed.
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To guarantee operation, an update error continues to be displayed until update is
successful.
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In this case, insert the SD card again, switch the power ON, and continue download of
firmware from the SD card automatically.
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Web access card software: EXJS (EXtended Java Script) is a Type-C ESA application,
and like a conventional Web access card, update using an sdk folder is required.
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The PS3 firmware program is included in the preinstalled PDF firmware.
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In the default state, although the PS3 firmware program is hidden in the disabled state,
the function is enabled by installing the PS3 card.
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(The program installed in the PS3 card is a dongle (key) for enabling PS3 function).
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Due to the above specification, the self-diagnosis result report shows the ROM module
number / software version of the PDF firmware at the PS location.
D146/D147/D148/D149/D150 5-8 System Maintenance Section