![printing - error during the cups operation 'client-error-document-format-not-supported' - Ask Ubuntu printing - error during the cups operation 'client-error-document-format-not-supported' - Ask Ubuntu](https://i.stack.imgur.com/vF6On.gif)
printing - error during the cups operation 'client-error-document-format-not-supported' - Ask Ubuntu
![CUPS is giving error 'client-error-not-possible' while adding a printer in RHEL 5 - Red Hat Customer Portal CUPS is giving error 'client-error-not-possible' while adding a printer in RHEL 5 - Red Hat Customer Portal](https://access.redhat.com/knowledge/sites/default/files/styles/large/public/images/print2_0.png)
CUPS is giving error 'client-error-not-possible' while adding a printer in RHEL 5 - Red Hat Customer Portal
![printing - "Unauthorized" error when adding printers through CUPS using Google Chrome in Ubuntu 18.04 LTS - Ask Ubuntu printing - "Unauthorized" error when adding printers through CUPS using Google Chrome in Ubuntu 18.04 LTS - Ask Ubuntu](https://i.stack.imgur.com/UOrqq.png)
printing - "Unauthorized" error when adding printers through CUPS using Google Chrome in Ubuntu 18.04 LTS - Ask Ubuntu
![Forbidden error in CUPS web interface (http://localhost:631/admin) when performing an update : r/linuxadmin Forbidden error in CUPS web interface (http://localhost:631/admin) when performing an update : r/linuxadmin](https://preview.redd.it/forbidden-error-in-cups-web-interface-http-localhost-631-v0-1m6paf9lmzdb1.png?width=1956&format=png&auto=webp&s=2b552b3a6471b3cb8d904241927c7c02770b167a)