Microsoft has issued a caution that it will be removing mitigations put in place against printing and scanning issues when using Smart Cards. The issues had begun after the July 2021 Patch Tuesday.
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Canon has been sued by one of its customers for selling seemingly misleading All-in-One printers that claim to also scan, and do more, but are only fully functional when ink cartridges are full.
Microsoft has confirmed that its recent July security update has broken printing and scanning on systems when using smart card authentication. The problem is related to certain changes it made.