Brother International MFC-P2000 Service Manual - Page 71
MTBF / MTTR, Basic Procedure - troubleshooting
UPC - 012502525394
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• Condensation on the corona unit may cause corona charge leakage. • Condensation on the hopper gate and separation pad may cause paper feed troubles. If condensation has occurred, wipe the effected units or parts with a dry cloth or leave the printer for 2 hours to allow it to reach room temperature. If the drum unit is unpacked soon after it is moved from a cold room to a warm room, condensation may occur inside the unit, which may cause incorrect images. Instruct the user to allow the unit to come to room temperature before unpacking it. This will take one or two hours. 1.2 Basic Procedure If a malfunction or incorrect print appears, make an initial check following the basic procedure below: (1) Check the error lamps following the inspection procedure described later in this chapter. If no error lamps are lit, see Section 4 for troubleshooting information. (2) If any defective image output is found, follow the image defect fault descriptions in this chapter. 2. MTBF / MTTR The meantime between failure (MTBF) and the meantime to repair (MTTR) for this printer are as follows; MTBF: MTTR: Up to 4,000 hours Average 30 minutes IV-2