User Manual
Table Of Contents
- USER’S GUIDE MFC-7420/MFC-7820N
- APPROVAL INFORMATION
- Compilation and Publication Notice
- EC Declaration of Conformity
- Safety precautions
- Quick Reference Guide
- Table of Contents
- 1 Introduction
- 2 Getting started
- Initial setup
- General Setup
- Setting the Mode Timer
- Setting the Paper Type
- Setting the Paper Size
- Setting the Ring Volume
- Setting the Beeper Volume
- Setting the Speaker Volume
- Turning on Automatic Daylight Savings Time
- Toner Save
- Sleep Time
- Setting the LCD Contrast
- Security
- TX Lock (MFC-7420 only)
- Memory Security (MFC-7820N only)
- Setting Lock
- 3 Setup Send
- 4 Setup Receive
- 5 Quick-Dial numbers and dialling options
- 6 Remote Fax Options
- 7 Printing reports
- 8 Making copies
- 9 Software and Network Features
- 10 Important information
- 11 Troubleshooting and routine maintenance
- Appendix A
- Appendix B
- Glossary
- Specifications
- Index
- Remote Retrieval Access card
- brother UK/IRE/SAF
Troubleshooting and routine maintenance
11 - 26
11
2
Hold down the lock lever on the left and
pull the toner cartridge out of the drum
unit.
3
Unpack the new toner cartridge. Place
the used toner cartridge into the
aluminium bag and discard it according
to local regulations.
CAUTION
■ Place the drum unit on a drop cloth or
large piece of disposable paper to
avoid spilling and scattering the toner.
■ Handle the toner cartridge carefully. If
toner scatters on your hands or
clothes, immediately wipe it off or wash
it with cold water.
CAUTION
■ Brother printers are designed to work
with toner of a particular specification
and will work to a level of optimum
performance when used with genuine
Brother branded toner cartridges
(TN-2000). Brother cannot guarantee
this optimum performance if toner or
toner cartridges of other specifications
are used. Brother does not therefore
recommend the use of cartridges other
than genuine Brother branded
cartridges with this printer.
■ If damage is caused to the drum unit or
other part of this machine as a result of
using other manufacturer’s products
with this machine, any repairs required
as a result may not be covered by the
warranty.
■ Wait to unpack the toner cartridge until
immediately before you install it in the
machine. If a toner cartridge is left
unpacked for a long period of time, the
toner life is shortened.
■ Do not touch the shaded parts shown
in the illustrations to prevent any
degradation to the print quality.










