Page 113
PR-01737 Ribbon Low
The print ribbon is low.
This message does not indicate a problem; it means that at least 90 percent
of the print ribbon has been used. This message is for your information so
that you can plan to replace the print ribbon.
When you press the Ready key on the LCD panel, or the OK button on the
message box, the message is not displayed again even if the condition
continues, until you power off and power on the printer.