Original disk what came with plotter.

Firmware Update Tool.
Vertion 1.20
p/n OK1-2789-V3

Good for all variations of 

Canon IPF 500 / 510 / 600 / 605 / 610 / 700 / 710 / 720 / 810 / 820 / LP-17 / LP-24 Firmware Update Tool.

Hard to find!

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