HP Color LaserJet CM2320 Service Manual - Page 270
Control-panel messages continued, Service Error, Turn off then on, 1 Fuser Error
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Table 7-12 Control-panel messages (continued) Control panel message Event log error message 49 Service Error Turn off then on 50.1 Fuser Error Turn off then on 50.1000 50.2 Fuser Error Turn off then on 50.2000 50.3 Fuser Error Turn off then on 50.3000 Description Recommended action The product has experienced a firmware error. 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, perform an NVRAM initialization. If the error persists, update the firmware. If the error persists, replace the formatter. The product has experienced a low fuser temperature error. 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 thermistor connection in the upper left of the fuser area is firmly connected. If the error persists, verify that the J150, J156, and J157 connections on the DC controller are firmly connected. If the error persists, replace the fuser. The product has experienced a slow fuser error. 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 fuser heat roller and pressure roller surfaces are not damaged. If the error persists, verify that the fuser motor rotates freely and that the gears are not damaged. If the error persists, replace the fuser. If the error persists, replace the DC controller. The product has experienced a general fuser error. 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. 258 Chapter 7 Problem solve ENWW