Brother Mfc 7220 User Manual

Chapter 11
11 - 13
Printer Difficulties 
The machine does not print. Please make sure:  The machine is plugged in and the power switch turned On. (See the Quick Setup Guide.)
— OR —
 The toner cartridge and drum unit are installed properly. (See  Replacing the 
drum unit (DR-350)  on page 11-27.)
— OR —
 The interface cable is securely connected between the machine and computer.  (See the Quick Setup Guide.)
— OR —
 The correct printer driver has been installed and selected.
— OR —
 Check to see if...

Troubleshooting and routine maintenance11 - 14
11
Scanning Difficulties (MFC-7220 and MFC-7225N only)
TWAIN errors appear while 
scanning.Make sure the Brother TWAIN driver is selected as the primary source. In 
PaperPort
®, click Scan in the File menu and select the Brother TWAIN driver.
Software Difficulties (MFC-7220 and MFC-7225N only)
Cannot install software or print. Run the  Repair MFL-Pro Suite program on the CD-ROM. This program will repair 
and reinstall the software. 
Cannot perform ‘2 in 1’...

Chapter 11
11 - 15
Print Quality Difficulties
Printed pages are curled. Low quality thin or thick paper can cause this problem. Make sure you select the  Paper Type that suits the media type you use. (See  About paper on page 1-8.)
Printed pages are smeared. The Paper Type setting may be incorrect for the type of print media you are  using—OR—The print media may be too thick or have a rough surface. (See 
About paper  on page 1-8 and  Basic tab in the Software User’s Guide on the 
CD-ROM (MFC-7220 or...

Troubleshooting and routine maintenance11 - 16
11
Improving the print quality
Examples of poor print qualityRecommendation
Faint
Check the machine’s environment. Conditions such as humidity, high 
temperatures, and so on may cause this print fault. (See  Choosing a location on 
page 1-2.)
If the whole page is too light,  Toner Save mode may be on. Turn off  Toner Save 
mode in the Advanced tab of printer driver Properties.
— OR —
If this problem occurs when making copies or printing received faxes, turn...

Chapter 11
11 - 17
White Spots on black text and  graphics at 3.1 in. 
(78.5 mm) intervals
Black Spots at 3.1 in.  (78.5 mm) intervals
Cleaning the drum unit
Dust, paper powder, glue, and so on may stick to the surface of the photosensitive 
drum (OPC) and cause black or white spots to appear on printed documents.
Make a few copies of a blank, white sheet of paper. (See  Making multiple copies 
on page 8-2.)
If you still see the spots on printed documents after making multiple copies, clean 
the drum...

Troubleshooting and routine maintenance11 - 18
11
Black toner marks across the page
The drum unit may be damaged. Put in a new drum unit (See  Replacing the drum 
unit (DR-350)  on page 11-27).
Make sure that you use paper that meets our specifications. (See  About paper on 
page 1-8.)
If you use label sheets for laser printers, the glue from the sheets may sometimes 
stick to the OPC drum surface. Clean the drum unit. (See  Cleaning the drum unit 
on page 11-17.)
Do not use paper that has clips or...

Chapter 11
11 - 19
Wrinkles or creases
Make sure that paper is loaded properly.
Check the paper type and quality. (See  About paper on page 1-8.)
Turn over the stack of paper in the tray or rotate the paper 180° in the input tray.
Examples of poor print qualityRecommendation
B DEFGH
abc efghijk
ACD bcde134
 

Troubleshooting and routine maintenance11 - 20
11
Compatibility
If you are having difficulty sending or 
receiving a fax due to possible interference 
on the phone line, we recommend that you 
adjust the Equalization for compatibility to 
reduce the modem speed for fax operations.
1Press Menu/Set , 2, 0, 1.
2Press ▲ or ▼ to select Basic or 
Normal (or High*). 
(*FAX-2920 and MFC-7225N only)
Press  Menu/Set .
3Press Stop/Exit .
Note
■Basic reduces the modem speed to 9600 
bps. Unless interference is a...

Chapter 11
11 - 21
0Pack the drum unit and toner cartridge 
assembly, AC cord and printed 
materials in the original carton as shown 
below:
Note
If you are returning your machine to Brother 
as part of the Exchange Service, pack only 
the machine. Keep all separate parts and 
printed materials to use with your “Exchange” 
machine.
AClose the carton and tape it shut.
Routine maintenance
Cleaning the outside of the 
machine
1Pull the paper tray completely out of the 
machine.
CAUTION
The drum unit...

Troubleshooting and routine maintenance11 - 22
11
2Wipe the outside of the machine with a 
soft cloth to remove dust.
3Remove anything that is stuck inside the 
paper tray.
4Wipe the inside of the paper tray with a 
soft cloth to remove the dust.
5Re-load the paper and put the paper tray 
in the machine.
Cleaning the scanner glass
1Turn off the machine’s power switch.
2Lift the control panel cover. 
3Moisten a small clean soft, lint-free cloth 
with isopropyl alcohol and carefully 
remove dirt from the...