Brother DCP-L8400CDN Service Manual page 459

2. PERIODICAL REPLACEMENT PARTS
2.1 Procedures to Replace Periodical Replacement Parts
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Preparation
Prior to proceeding with the disassembly procedure,
(1) Unplug
- the AC cord,
- the telephone line,
- the USB flash memory,
- the USB cable, if connected, and
- the LAN cable, if connected.
(2) Remove the Paper tray.
Main body
Paper tray
7-2
Confidential