There was an issue with the Fax Viewer Application which would cause a type 11 error and crash when printing to the two printers you reported.
According to engineering, this issue was addressed with Apple Telecom 2.3. This software has been localized and should be available.
You should install the newer software to update the Fax Viewer program.
Article Change History:
08 Feb 1996 - Corrected minor typo.
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