Greetings,
See the following KB article:
Canon Knowledge Base - Understand error code 1600 - MX922
All you can do is inspect and reseat the tanks. No lights are on. Article states the device will require service.
~Rick
Bay Area - CA
~R5 C (1.0.5.1) ~RF Trinity, ~RF 100 Macro, ~RF 100~400, ~RF 100~500, +RF 1.4x TC, +Canon Control Ring, BG-R10
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