Remedy: Verify that the DC controller connectors are firmly connected. If the error persists, replace the temperature/humidity sensor. If the error persists, replace the DC controller.
Code: 54.0600
Display: 54.0600
Description: Density sensor error
Remedy: Verify that the cables between the DC controller is firmly connected. If the error persists, replace the misregistration sensor. If the error persists, replace the DC controller.
Code: 54.1100
Display: 54.1100
Description: Black density out of range
Remedy: Verify that the cables between the DC controller is firmly connected. If the error persists, replace the misregistration sensor. If the error persists, replace the DC controller.
Code: 54.1200
Display: 54.1200
Description: Black density measurement abnormality
Remedy: Verify that the cables between the DC controller is firmly connected. If the error persists, replace the misregistration sensor. If the error persists, replace the DC controller.
Code: 54.1800
Display: 54.1800
Description: Black toner level sensor error
Remedy: 1. Turn off the power by using the power switch, and then wait at least 30 seconds. 2. Turn on the power and wait for the product to initialize. If the error persists, replace the DC controller.
Code: 54.2100
Display: 54.2100
Description: Beam detect (BD) error
Remedy: If the error persists, replace the DC controller. If the error persists, replace the product.
Code: 54.2500
Display: 54.2500
Description: Top-of-page sensor error
Remedy: Verify that the DC controller connectors are firmly connected. If the error persists, replace the DC controller.