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11
Important information ........................................................11-1
Standard telephone and FCC Notices
These notices are in effect on models sold and
used only in the United States..............................11-1
Federal Communications Commission (FCC)
Declaration of Conformity (USA only)...................11-3
Important ..............................................................11-4
Important – about the interface cable...................11-4
Industry Canada Compliance Statement
(Canada only).......................................................11-4
International E
NERGY STAR
®
Compliance Statement ...11-4
Laser safety..............................................................11-4
FDA regulations........................................................11-5
Important safety instructions...........................................11-6
Trademarks.....................................................................11-8
12
Troubleshooting and routine maintenance .....................12-1
Troubleshooting .............................................................12-1
Error messages ........................................................12-1
Original jams.............................................................12-4
Original is jammed in the top of the ADF unit........12-4
Original is jammed inside the ADF unit. ...............12-5
Paper jams................................................................12-6
Paper is jammed in the duplex tray
(For MFC-8840D and MFC-8840DN).............12-11
If you are having difficulty with your MFC...............12-13
Improving the print quality.......................................12-18
Packing and shipping the MFC.....................................12-22
Routine maintenance....................................................12-25
Cleaning the scanner..............................................12-25
Cleaning the printer ................................................12-26
Cleaning the drum unit............................................12-27
Replacing the toner cartridge..................................12-28
How to replace the toner cartridge..........................12-29
Replacing the drum unit..........................................12-34
Checking the drum life............................................12-37
Page Counter .........................................................12-37
13
Optional accessories .........................................................13-1
Memory board.................................................................13-1
Installing the optional memory board........................13-2
Network (LAN) board ......................................................13-4
Before starting installation ........................................13-5
Step 1: Hardware installation....................................13-5