Troubleshooting of Communication Error - The printer does not operate at Connect printer

Check Point

1. Check that the Connector Cable of the Power Supply Board is connected to the Main Board Connector CN7.
Connect the Connector Cable of the Power Supply Board to the Main Board Connector CN7.

2. Check that the blue colored pin of the Power Supply Board Connector cable is inserted into the 1 Pin of the Main Board Connector CN7 as shown in the above picture.
Reconnect the Power Supply Board Connector cable so that the blue colored pin is inserted into the 1 Pin.

3. Check that the Fuse F1 on the Power Supply Board has not blown.
Replace the Power Supply Board with a new one.
power supply fuse f1

4. Check the components on the Power Supply Board for damage.
Replace the BR-1800 Power Supply Board with a new one.