765The printhead has less than 4 bad dots. The printer can shift bar code fields to avoid bad dots. You may need to press CLEAR (ESCAPE/CLEAR) to continue printing. Print a test label to confirm the number of bad dots.

768Printhead has more than 10 bad dots or is not connected. Make sure the printhead is connected and if necessary, call Customer Service to order a new printhead or printhead kit.

770The print motor is not ready. Call Technical Support.

771The format specified by the application was not found. Reload your application and format, and try again. If the problem continues, call Technical Support.

790Wait until the printer is idle (no batch waiting to print or not receiving data) before you send any packets. This error may occur when you try to print a test label if the printer is busy.

791The printer has an error pending. Turn off the printer. Wait 15 seconds and turn it back on. Resend the packets. If the problem continues, call Technical Support.

792The printer is not initialized. Call Technical Support.

793The printer job queue is full. Turn off the printer. Wait 15 seconds and turn it back on. Resend the packets. If the problem continues, call Technical Support.

900RAM test failure.

901ROM/EPROM checksum failure.

902Software timer failure.

903Software interrupt failure.

Diagnostics and Errors 8-23

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Monarch 9805, 9835, 9820, 9830 manual