Brother intellifax 4100 prints full page all black This fax prints everything black, I just put in a new drum & Toner and still all black. I even put another toner & drum working in another fax and still all black. I checked the contacts and they look good, am I overlooking something? please help me. Thank You Juan

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Good chance the High voltage power supply is bad. Not worth repairing. A new unit costs about 259.00.
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