Describes the cause and action for error messages.
Error Message(English)：
printer unavailable error
Troubleshooting Printer Problems - Confluence Mobile - [~ Doc Store ~]
https://confluence.valpo.edu/display/ITKB/Troubleshooting+Printer+Problems
Problems Saving as PDF (Microsoft Word) - Word ribbon tips - Tips.Net
https://wordribbon.tips.net/T011430_Problems_Saving_as_PDF.html
Clay Johanson's Knowledge Base Article List
https://www.clayj.com/html/ClayArts.htm
Canon Technical Support, Page 3 | Scoop.it
https://www.scoop.it/topic/canon-technical-support?page=3