The message "communication failed" suggests that there might be an issue with the communication between the CupSHOW program and the printer. This could be due to various reasons such as connectivity problems, driver issues, or configuration settings. To resolve the problem, try the following steps:
1. Check the printer connections and make sure it is properly connected to the computer.
2. Ensure that the printer drivers are installed correctly and up to date.
3. Restart both the computer and the printer.
4. Verify that the printer is set as the default printer in the system settings.
5. If the issue persists, try reinstalling the CupSHOW program or contacting their support for further assistance.
