T.E.S.T.C.O.P.Y.

Code: 0900
Display:
Print Unable 09 Turn the power off and then back on again.
Description:
Detected irregular power supply for more than 100 times.
Remedy:
<User Check> • Turn OFF the power switch. After several seconds, turn ON the power again and check that this error is reset.
1 Low-voltage power supply PCB failure Replace the low-voltage power supply PCB ASSY. Refer to Reset irregular power supply detection counter of low-voltage power supply PCB (function code: 88)” to reset the irregular power supply detection counter. 2 Main PCB failure Replace the main PCB ASSY.
• The irregular power supply detection error of the low-voltage power supply PCB (error code: 0900) occurs when there is a large distortion in the power supply voltage supplied to the machine. In this case, if the same power supply is used, the same error may occur even when the low-voltage power supply PCB ASSY is replaced. Ask the user to review the installation environment.