Sony DPP-MS300 Marketing Operating Instructions Manual page 51

The MEMORY indicator flashes.
m The printer is processing the data for storing to the
internal memory. It takes some time before it can
operate again.
The cartridge error, paper supply and printing
indicators flash.
m Print paper is jammed.
See "If the print paper is jammed" on page 52.
The cartridge error, paper supply, printing, INPUT,
and MEMORY indicators flash.
m An error has occurred. Turn off the printer, then
turn on again.
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