Brother International HL 5030 Service Manual - Page 184
Service Calls, Engine PCB failure
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HL-5030/5040/5050/5070N SERVICE MANUAL 2.2 Service Calls If service calls occur, all four LEDs (Status LED: Red) flash on and off to notice it. In this state execute the operation described on the top of Table 1 to notify a fault location from the specific combination of ON/OFF and status color of the LED. Instruct the user to turn off the power switch, wait a few seconds and then turn it on again and try to print again. If the error is not cleared and the same service call appears, see Section 6 'Malfunctions' to take the corrective action. Error occurs. Confirm the LED indication. Turn OFF/ON the power switch. Error occurs NO again. YES See Section 6 'Malfunction'. Temporary error. Use the printer without corrective action. Push the Go switch and the Job Cancel switch at the same time during the service call and hold them. And then push the 2 key additionally to show the service call type by the LED combination. Type of service call Toner LED Drum Paper Status Remedy Fixing unit failure (Red) Laser unit failure (Red) Main motor failure (Red) Main PCB failure (Yellow) Engine PCB failure (Yellow) DIMM failure (Yellow) Table 1 6-5