Brother DCP-7030 Service Manual
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Brother DCP-7030 Service Manual

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SERVICE REFERENCE MANUAL
DCP-7030/7040/7045N
MFC-7320/7340/7440N/7450/
Read this manual thoroughly before maintenance work.
Keep this manual in a convenient place for quick and easy reference at all times.
Jan 2008
SM-FAX087
8C5C
(2)
MODEL:
7840N/7840W
Confidential

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Barry Kirkham
April 19, 2025

There are four equally spaced black marks in the margin of every document

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1 comments:
Mr. Anderson
May 10, 2025

Four equally spaced black marks in the margin of documents printed by the Brother DCP-7030 are caused by the toner cartridge. The dot pattern repeats every 1.5 inches (or 39 mm), indicating an issue with the toner cartridge.

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