Brother MFC 7840W User Manual Page 107
- Page / 192
- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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B
B
Troubleshooting B
IMPORTANT
For technical help, you must call the country where you bought the machine. Calls must be
made from within that country.
If you are having difficulty with your machine B
If you think there is a problem, check the chart below and follow the troubleshooting tips. You can
solve most problems by yourself.
If you need additional help, the Brother Solutions Center offers the latest FAQs and
troubleshooting tips.
Visit us at http://solutions.brother.com/
.
Troubleshooting and routine
maintenance
B
Printing or receiving faxes
Difficulties Suggestions
Condensed print
Horizontal streaks
Top and bottom sentences are
cut off
Missing lines
Usually this is caused by a poor telephone connection. If your copy looks good,
you probably had a bad connection, with static or interference on the telephone
line. Ask the other party to send the fax again.
Poor print quality See Improving the print quality on page 100.
Vertical black lines when receiving The corona wire for printing may be dirty. Clean the corona wire. (See Cleaning
the corona wire on page 122.)
The sender’s scanner may be dirty. Ask the sender to make a copy to see if the
problem is with the sending machine. Try receiving from another fax machine.
If the problem continues, call Brother Customer Service at
1-877-BROTHER (1-877-276-8437) (in USA) or
1-877-BROTHER (in Canada).
Received faxes appear as split or
blank pages.
If the received faxes are divided and printed on two pages or if you get an extra
blank page, your paper size setting may not be correct for the paper you are using.
(See Paper size on page 20.)
Turn on auto reduction. (See Printing a reduced incoming fax on page 43.)
- USER’S GUIDE 1
- Brother numbers 3
- (USA and Canada) 5
- (USA Only) 6
- LIMITED WARRANTY 8
- Table of Contents 9
- Section II Fax 10
- Section III Copy 12
- Section IV Software 13
- Section V Appendixes 13
- C Menu and features 135 14
- D Specifications 152 14
- E Glossary 168 14
- F Index 172 14
- General I 15
- General information 1 16
- Software User's Guide: 1 17
- OCR How-to-Guides: 17
- Chapter 1 18
- Accessing Brother 19
- (for Windows 19
- Control panel overview 1 20
- General information 21
- Loading paper and documents 2 23
- Loading paper in the manual 24
- Loading paper and documents 25
- Chapter 2 26
- Unprintable area 2 27
- Acceptable paper and 28
- Handling and using special 29
- Types of paper to avoid 2 30
- Envelopes 2 30
- Types of envelopes to avoid 2 31
- Loading documents 2 32
- Using the scanner glass 2 33
- General setup 3 34
- Volume settings 3 35
- Automatic daylight 36
- Ecology features 3 36
- LCD contrast 3 36
- Dial prefix 3 37
- Security features 4 38
- Secure function lock 39
- (MFC-7840W only) 4 39
- Setting up the public user 4 40
- Setting up restricted users 4 40
- Switching users 4 41
- Setting lock 4 42
- Restricting dialing 4 43
- Chapter 4 44
- Section II 45
- Sending a fax 5 46
- Broadcasting 5 47
- Additional sending 48
- Contrast 5 49
- Changing fax resolution 5 50
- Dual access 5 50
- Real time transmission 5 50
- Overseas mode 5 51
- Delayed fax 5 51
- Delayed batch transmission 5 51
- Checking and canceling 52
- Sending a fax manually 5 52
- Out of memory message 5 52
- Receiving a fax 6 53
- Using receive modes 6 54
- Receive mode settings 6 55
- Easy receive 6 56
- Setting the print density 6 56
- Additional receiving 57
- Telephone line 58
- Caller ID 7 60
- Connecting an external 61
- TAD (telephone 61
- Connections 7 62
- Recording an outgoing 62
- Special line considerations 7 62
- Two-line telephone system 7 63
- TAD and two-line telephone 63
- External and extension 64
- Fax Receive Code 7 65
- Telephone Answer Code 7 65
- Changing the remote codes 7 66
- Dialing and storing numbers 8 67
- Storing numbers 8 68
- Storing speed dial numbers 8 69
- Changing one touch and 69
- Setting up groups for 70
- Dialing access codes and 71
- Tone or pulse (Canada only) 8 71
- Remote fax options 9 72
- Paging 9 73
- Fax storage 9 73
- PC fax receive 9 74
- Changing remote fax 75
- Remote retrieval 9 76
- Retrieving fax messages 9 77
- Changing the fax forwarding 77
- Remote fax commands 9 78
- Polling 10 79
- Polled transmit 10 80
- Printing reports 11 81
- Reports 11 82
- Copy III 83
- Making copies 12 84
- Copy options 85
- (temporary settings) 12 85
- Using the Options key 12 86
- Improving copy quality 12 87
- Adjusting contrast 12 88
- Making N in 1 copies 88
- (page layout) 12 88
- Out of memory 89
- Chapter 12 90
- Software IV 91
- How to read HTML 92
- User’s Guide 13 92
- For Macintosh 93
- Chapter 13 94
- Appendixes V 95
- Safety and legal A 96
- To use the machine safely A 97
- Important information A 100
- Safety and legal 101
- Disconnect device A 102
- International ENERGY STAR 103
- Compliance Statement A 103
- Laser safety A 103
- FDA regulations A 103
- Trademarks A 106
- Troubleshooting and routine 107
- Telephone line or connections 108
- Sending faxes 108
- Handling incoming calls 108
- Menu access difficulties 109
- Copy quality difficulties 109
- Printing difficulties 109
- Scanning difficulties 110
- Software difficulties 110
- Paper handling difficulties 110
- Print quality difficulties 111
- Improving the print quality B 114
- ABCDEFGH 115
- 2.95 in 116
- Setting dial tone detection B 119
- Telephone line interference B 120
- Transferring your faxes or 125
- Fax Journal report B 125
- Document jams B 127
- Paper jams B 128
- Routine maintenance B 132
- Cleaning the scanner glass B 133
- Cleaning the laser scanner 134
- Cleaning the corona wire B 136
- Cleaning the drum unit B 137
- Replacing a toner cartridge B 140
- Replacing the drum unit B 144
- Machine information B 146
- Packing and shipping 147
- Chapter B 148
- Clear/Back OK 149
- How to access the menu 150
- Menu table C 151
- Menu and features 153
- Entering text C 164
- ~ ‘ 165
- Specifications D 166
- Specifications 167
- Print media D 168
- Interfaces D 173
- Computer requirements D 174
- Consumable items D 176
- Ethernet wired network 177
- Authentication method D 179
- Encryption methods D 179
- Network key D 179
- Glossary E 182
- Glossary 183
- (Canada only) 191
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