Brother
Office

Model # MFC7420 Official Brother fax machine

Here are the diagrams and repair parts for Official Brother MFC7420 fax machine, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 75 parts  |

Fuser Unit LM4573001
#1

Fixing assy diagram

Fuser unit

Part #LM4573001

The manufacturer no longer makes this part, and there's no substitute part

Spring LJ5066001
#11

Cover assy diagram

Spring

Part #LJ5066001

The manufacturer no longer makes this part, and there's no substitute part

Cover LF6140001
#12

Cover assy diagram

Cover

Part #LF6140001

The manufacturer no longer makes this part, and there's no substitute part

Paper Tray Assy LM4131001
#1

Paper cassette diagram

Paper tray assy

Part #LM4131001

The manufacturer no longer makes this part, and there's no substitute part

F/r Solenoid Assy LM4234001
#1-4

Frame assy diagram

F/r solenoid assy

Part #LM4234001

The manufacturer no longer makes this part, and there's no substitute part

Pull Arm L LF6145001
#15

Cover assy diagram

Pull arm l

Part #LF6145001

The manufacturer no longer makes this part, and there's no substitute part

Link Lever LM4414001
#14

Frame assy diagram

Link lever

Part #LM4414001

The manufacturer no longer makes this part, and there's no substitute part

Proces Unit Op Label LF6526001
#21

Cover assy diagram

Proces unit op label

Part #LF6526001

The manufacturer no longer makes this part, and there's no substitute part

Regist Frnt Spring LM4285001
#11

Frame assy diagram

Regist frnt spring

Part #LM4285001

The manufacturer no longer makes this part, and there's no substitute part

Hinge LF4976002
#4

Adf diagram

Hinge

Part #LF4976002

The manufacturer no longer makes this part, and there's no substitute part

Symptoms for top-mount refrigerators

Main causes: frozen or clogged defrost drain tube, cracked water system tubing...

Repair guides for top-mount refrigerators

How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water...

Repair difficulty
Time required
15 minutes or less
How to replace the compressor run capacitor in a top-freezer refrigerator

How to replace the compressor run capacitor in a top-freezer refrigerator

The run capacitor sends electric current to the compressor motor to help the motor run efficiently. Replace the run capa...

Repair difficulty
Time required
15 minutes or less
How to replace the defrost thermistor in a top-freezer refrigerator

How to replace the defrost thermistor in a top-freezer refrigerator

The defrost thermistor attaches to the evaporator coil and measures the evaporator coil temperature during defrost....

Repair difficulty
Time required
15 minutes or less

Effective articles & videos to help repair your office

Office and smart products articles | Sears PartsDirect

How to enjoy all the online benefits we offer on our Sears PartsDirect website

How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier....

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect....

What does the Amazon Fire Stick Lite do?

What does the Amazon Fire Stick Lite do?

Learn what the Amazon Fire Stick Lite video streaming device does....