Users Manual - English
Page 13
...MFC-7440N and MFC-7840W only 88 International ENERGY STAR® Compliance Statement 89 Laser safety 89 FDA regulations 89 Important safety instructions 90 Trademarks...92 B Troubleshooting and routine maintenance 93 Troubleshooting 93 If you are having difficulty with your machine 93 Improving the print quality 100 Setting dial tone detection 105 Telephone line interference 106 Error...119 Cleaning the laser scanner window 120 Cleaning the corona wire 122 Cleaning the drum unit 123 Replacing the consumable items 126 Replacing a toner cartridge 126 Replacing the drum unit 130 ...
...MFC-7440N and MFC-7840W only 88 International ENERGY STAR® Compliance Statement 89 Laser safety 89 FDA regulations 89 Important safety instructions 90 Trademarks...92 B Troubleshooting and routine maintenance 93 Troubleshooting 93 If you are having difficulty with your machine 93 Improving the print quality 100 Setting dial tone detection 105 Telephone line interference 106 Error...119 Cleaning the laser scanner window 120 Cleaning the corona wire 122 Cleaning the drum unit 123 Replacing the consumable items 126 Replacing a toner cartridge 126 Replacing the drum unit 130 ...
Users Manual - English
Page 109
...with your machine, it to see if the LCD is showing an error message. (See Error and maintenance messages on page 107.) Check that send and ...Settings and then Printers. Right-click Brother MFC-XXXX Printer. Suggestions Black vertical lines on copies are installed properly. (See Replacing the drum unit on page 130.) ... that the toner cartridge and drum unit are typically caused by dirt or correction fluid on the glass strip, or one of the corona wires for ... line. Troubleshooting and routine maintenance Handling incoming calls (continued) Difficulties Custom features on Fax mode...
...with your machine, it to see if the LCD is showing an error message. (See Error and maintenance messages on page 107.) Check that send and ...Settings and then Printers. Right-click Brother MFC-XXXX Printer. Suggestions Black vertical lines on copies are installed properly. (See Replacing the drum unit on page 130.) ... that the toner cartridge and drum unit are typically caused by dirt or correction fluid on the glass strip, or one of the corona wires for ... line. Troubleshooting and routine maintenance Handling incoming calls (continued) Difficulties Custom features on Fax mode...
Users Manual - English
Page 121
... the "Paper Size" (Menu, 1, 3 (See Paper size in Chapter 3)). Troubleshooting and routine maintenance Error and maintenance messages B As with a new one. (See Replacing the drum unit on the LCD, and put it back into the drum unit again. Visit us at http://solutions.brother.com/. The most errors and routine maintenance by yourself. Load the correct size...
... the "Paper Size" (Menu, 1, 3 (See Paper size in Chapter 3)). Troubleshooting and routine maintenance Error and maintenance messages B As with a new one. (See Replacing the drum unit on the LCD, and put it back into the drum unit again. Visit us at http://solutions.brother.com/. The most errors and routine maintenance by yourself. Load the correct size...
Users Manual - English
Page 125
Do one of the following : (MFC-7340, MFC-7345N and MFC7440N only) See Transferring your faxes or ... Troubleshooting and routine maintenance Error Message Scan Unable XX Toner Life End Toner Low Cause Action The machine has a mechanical problem. Then, disconnect the machine from the power for several minutes, and then reconnect it . (MFC-... or the toner cartridge is used up and printing is not possible. Do one . (See Replacing a toner cartridge on page 111.) The drum unit and toner cartridge assembly may have been transferred, disconnect the machine from the...
Do one of the following : (MFC-7340, MFC-7345N and MFC7440N only) See Transferring your faxes or ... Troubleshooting and routine maintenance Error Message Scan Unable XX Toner Life End Toner Low Cause Action The machine has a mechanical problem. Then, disconnect the machine from the power for several minutes, and then reconnect it . (MFC-... or the toner cartridge is used up and printing is not possible. Do one . (See Replacing a toner cartridge on page 111.) The drum unit and toner cartridge assembly may have been transferred, disconnect the machine from the...