Microcom 224 Operator's Manual page 172

Troubleshooting
The status indicator light is solid red in color:
 The printer has an error and requires service before printing will continue.
 Verify that media has been loaded in the printer properly.
 Press the print button to attempt to clear the error.
 Refer to Chapter 5 for information regarding the Enquiry Command to help identify
the error condition.
 Cycle power to reset the printer.
The status indicator light is flashing red in color:
 Generally due to a power fail error.
 Verify that the AC line-voltage is present at the AC outlet.
 Cycle power.
During download the status indicator light flashes red in color:
 The file contains an illegal operation / command.
 The graphic or font is not valid or has errors.
 The intended memory slot is already occupied.
 Verify that the printer is properly configured for the type of download being sent.
 Clear memory and attempt download again.
 Verify that the format has been created properly.
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Chapter 11