Brother International DCP-1400 Service Manual - Page 164
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Trouble (15) Dirt back of paper -4t1141 (16) Poor fixing 51 1r4 (17) Ghost LP LP (18) Black spots •• • . . • L.P ' •• 19) Light rain Action to be taken At the printer side • Clean the pressure roller in the heat-fixing unit. Replace the heat-fixing unit. • Replace the drum unit. • Replace the high-voltage power supply PCB. At the printer side • Instruct the user to use paper of the recommended weight (less than 36 lb./m2). • Clean the toner sensors (LED and light-receiver). • Replace the toner cartridge. • Replace the drum unit. • Check the fitting of the heater thermistor. Replace the heat- fixing unit. • Replace the low-voltage power supply PCB. •At the printer side Instruct the user to use paper of the recommended weight (less than 36 lb./m2). • Replace the drum unit. • Replace the high-voltage power supply PCB. At the printer side • Gently wipe off the surface of the photo-sensitive drum with a • cotton swab. Replace the drum unit. • Replace the heat-fixing unit. • Replace the high-voltage power supply PCB. At the printer side • Replace the drum unit. • Replace the high-voltage power supply PCB. VI - 26