Table 2-7 Event-log messages (continued)
Event code Description
51.0000 Beam detect or laser error
52.0000 Engine laser scanner error
55.3000 Engine-formatter communication error
55.4000 Engine communication timeout error
57.0000 Fan motor error
57.0600 Fan motor error
Some product events do not produce a message that displays on the control panel. Instead, they are
only recorded in the event log.
Table 2-8 Event-log-only messages
Event code Description Solution
50.2000 Slow fuser error
50.7000 Fuser open error
Low subthermistor fuser error
High subthermistor fuser
error
51.2000 Black scanner laser error
(inline devices only)
54.0100 Environmental sensor error 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.
54.0600 Density sensor error Verify that the cables between the DC controller is firmly connected.
If the error persists, replace the color misregistration sensor.
If the error persists, replace the DC controller.
54.1100 Black density out of range
54.1200 Black density measurement
abnormality
54.1400 Color plane registration
sensor error (inline devices
only)
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, verify that the cables between the color misregistration
sensor and the DC controller are firmly connected.
If the error persists, replace the color misregistration sensor.
If the error persists, replace the toner cartridge tray.
If the error persists, replace the DC controller.
138 Chapter 2 Solve problems ENWW
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