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Reports of printing issues after Windows Update released on July 6, 2021

Issue known:
There have been cases where printers of multiple brands do not print after installing Windows Update KB5004945 released on July 6, 2021.

Models affected:
All printers running Windows 10 Version 21H1, 20H2 or 2004, and all printers running Windows Server 20H2 or 2004.

Actions taken:
Microsoft released KB5004237 to fix the issue.

SATO has not received any reports on such a case as of July 19. We will keep watch on the situation.

Support information from Microsoft:

Microsoft Support: July 13, 2021 — KB5004237 (OS Builds 19041.1110, 19042.1110 and 19043.1110)

Microsoft Support: July 6, 2021 — KB5004945 (OS Builds 19041.1083, 19042.1083 and 19043.1083) Out-of-band


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