Causes: NVRAM incorrect typNVRAM defectiveNVRAM data scrambled. Unexpected error from external source
Remedy: 1. Replace the NVRAM.
Code: 920
Description: Printer error 1 An internal application error was detected and operation cannot continue.
Causes: Software defective. Insufficient memory
Remedy: 1. Turn the machine Off and On. 2. Change the Controller firmware.
Code: 921
Description: Printer error 2 When the application started, the necessary font was not on the SD card.
Causes: Font not on the SD card
Remedy: 1. Copy the necessary font on the SD card.
Code: 990
Description: Software performance error The software attempted to perform an unexpected operation due to: 1) software bug 2) incorrect internal parameter 3) insufficient working memory
Causes: Software defective
Remedy: 1. Turn the machine power Off and On. 2. Reinstall the controller and/or main firmware.
Code: 991
Description: Software continuity error The software attempted to perform an unexpected operation. However, unlike SC990, the object of the error is continuity of the software.
Causes: Software defective
Remedy: 1. No operation required. • This SC code does not appear on the panel, and is only logged.
Code: 992
Description: Unexpected Software Error Software encountered an unexpected operation not defined under any SC code.
Causes: Software defective. An error undetectable by any other SC code occurredxpect.