BlueSCSI can emulate an Apple LaserWriter IISC. Each job your Mac prints is saved to the SD card as a print_NNNN.bin file. Open those files here to see the pages, then save them as PNGs or print them. Setup is covered in the Printer docs.
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Drop print_NNNN.bin files here
or click to choose — LaserWriter IISC spools captured by BlueSCSI