Brother 5750e Intellifax Fax Machine Owners Manual
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19 - 10 TROUBLESHOOTING AND ROUTINE MAINTENANCE ZleMFC-US-FAX-4750e/5750e- DIFFICULTYSUGGESTIONS Software Difficulties “Unable to write to LPT1” or “LPT1 already in use” error message appears.1. Make sure the machine is on (plugged into the AC outlet) and that it is connected directly to the computer using an IEEE-1284 bi-directional parallel cable. The cable must not go through another peripheral device (such as a Zip Drive, External CD-ROM Drive, or Switch box). 2. Make sure the machine’s LCD screen is not displaying an error message. 3. Make sure no other device drivers, which also communicate through the parallel port, are running automatically when you boot up the computer (such as, drivers for Zip Drives, External CD- ROM Drive, etc…) Suggested areas to check: (Load=, Run= command lines in the win.ini file or the Startup Group) 4. Check with you computer manufacturer to confirm that the computer’s parallel port settings in the BIOS are set to support a bi- directional machine, i.e. (Parallel Port Mode- ECP). “MFC is Busy” or “MFC Connect Failure” error message appears. MFC Connect Failure If the Brother machine is not connected to your PC and you have loaded the Brother software, the PC will show “MFC Connect Failure” each time you restart Windows ®. You can ignore this message or you can turn it off by deselect the AutoLoad PopUp check box in the Brother Control Center chapter. (See How to Turn Off AutoLoad, Page 14-2.) Windows ® Setup Printing Difficulties I cannot print from my application software.Make sure the Windows ® printer driver is installed and that you selected it in your application software. Sometimes I get the error message OUT OF MEMORY when printing certain documents from Windows ®. If you are using the supplied Windows® driver, turn the error recover operation on in the Setup dialog box and try again. Reduce the print resolution or reduce the complexity of your document and try again.
TROUBLESHOOTING AND ROUTINE MAINTENANCE 19 - 11 ZleMFC-US-FAX-4750e/5750e- DIFFICULTYSUGGESTIONS Paper Handling Difficulties The Brother machine does not load paper. The LCD shows CHECK PAPER or PAPER JAM.Check to see if the CHECK PAPER or PAPER JAM message appears on the LCD. If so, the multi- purpose sheet feeder may be out of paper or not properly installed. If it is empty, load a new stack of paper into the feeder. If there is paper in the paper cassette, make sure it is straight. If the paper is curled, you should straighten it. Sometimes it is helpful to remove the paper, turn the stack over and place it back into the paper cassette. Reduce the amount of paper in the paper cassette, and then try again. Check the manual mode is not selected in the printer driver. How can I load envelopes?You can load envelopes from the manual feed slot. Your application software must be set up to print the envelope size you are using. This is usually done in the Page Setup or Document Setup menu of your software. Refer to your application manual. The machine does not load transparencies.The Outer Chute on your machine may be bent. Please straighten the Outer Chute, and then use transparencies again. If the machine still does not load transparencies, call Brother Customer Service to troubleshoot the problem with you. Paper Handling Difficulties (Cont.) What paper can I use? You can use plain paper, envelopes, transparencies and labels for laser machines. For information on paper you can use, See Acceptable Paper, page 2-6. How can I clear paper jams?See Paper Jam on page 19-4 to 19-5. Scanning Difficulty TWAIN Errors appear while scanning.Make sure the Brother TWAIN Driver is selected as the primary source. For FAX-5750e in PaperPort ®, click File | Select Source, highlight the Brother TWAIN Driver and click Select.
19 - 12 TROUBLESHOOTING AND ROUTINE MAINTENANCE ZleMFC-US-FAX-4750e/5750e- DIFFICULTYSUGGESTIONS Copy Quality Difficulties Vertical streaks appear in copies.Sometimes you may see vertical streaks on your copies. Either the scanner or the primary corona wire for printing is dirty. Clean them both. (See pages 19-18 to 19-20) Print Quality Difficulties Printouts are too dark or too light.Adjust the print conditions by setting the Print Density setting. It has been factory set to the middle position. (See Setting the Print Density, page 5-4.) Printed pages contain white stripes. White Stripes or Faint lmagesYou may fix this by wiping the scanner windows with a clean soft cloth. (See Cleaning the Document Scanner , page 19-18 and Replacing the Drum Unit, page 19-23.) If you still see white stripes or faint images and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Check the machine’s environment. Conditions such as humidity and high temperatures may cause this print defect to occur. Printed pages are stained with toner or have vertical stripes. Dark Stripes or Toner StainsClean the machine’s interior and the primary corona wire of the toner cartridge. ( See Routine Maintenance , page 19-18 and Cleaning the Drum Unit, page 19-19.) Make sure that the tab of the corona wire is at the home position. If after cleaning, you still see dark stripes or toner stains and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Printed pages have white in black text and graphic areas. White SpotsMake sure that you use paper that meets the specifications. Rough surface or thick media can cause the problem. If you still see white spots and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Check the machine’s environment; conditions such as high humidity may cause this situation to occur.
TROUBLESHOOTING AND ROUTINE MAINTENANCE 19 - 13 ZleMFC-US-FAX-4750e/5750e- DIFFICULTYSUGGESTIONS Print Quality Difficulties ( CONTINUED) Toner scatters and stains the printed page. Scattering TonerAdjust the print conditions by setting the Print Density setting. Remove the drum unit and clean the machine’s interior. (See Routine Maintenance, page 19-18, Cleaning the Printer, page 19-18 and Cleaning the Drum Unit, page 19-19.) Make sure that you use paper that meets specifications. (See pages 2-6.) If you still have scattered toner and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Check the machine’s environment. Conditions such as humidity and high temperatures may cause this print defect to occur. The whole page is printed black. Black PageWipe the electric terminals referring to page 19-18. Also, do not use heat-sensitive paper because it will cause this problem. After cleaning, if the printed pages are still black and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Nothing is printed on the page. White pageMake sure that the toner cartridge is not empty. Wipe the electric terminals. (See Routine Maintenance, page 19-18, Cleaning the Printer, page 19-18 and Cleaning the Drum Unit, page 19-19.) Make sure that a torn piece of paper does not remain on the scanner window. Printed pages are marked at regular intervals. Example of Regular MarksMarks may disappear by themselves. Try copying multiple pages to clear this problem. Marks may occur if the machine has not been used for a long time. A possible cause is that the surface of the drum is scratched. You must then replace the drum unit with a new one. If the marks do not disappear, it may be that the drum was marked or damaged by excessive exposure to light. In this case, replace the drum unit with a new one.
19 - 14 TROUBLESHOOTING AND ROUTINE MAINTENANCE ZleMFC-US-FAX-4750e/5750e- DIFFICULTYSUGGESTIONS Print Quality Difficulties ( CONTINUED) Printed pages are blurred at the center or at either edge. Blurred Page Certain environmental conditions such as humidity and high temperatures may cause this condition to occur. Make sure the machine is placed on a flat, horizontal surface. Remove the drum unit with the toner cartridge installed. Try rocking them from side to side. You may clear a blurred page by wiping the scanner windows with a clean soft cloth. (See Routine Maintenance, page 19-18, Cleaning the Printer, page 19-18 and Cleaning the Drum Unit, page 19-19.) If a blurred page occurs after cleaning and the LCD shows CHANGE DRUM SOON, replace the drum unit with a new one. Ghost images appear on the printed page. Ghost ImagesAdjust the print conditions by setting the Print Density setting, page 5-4. Make sure you use paper that meets the specifications. Rough surfaces or thick media can cause a ghost image. NoteThe drum unit is a consumable item and it is necessary to replace it periodically.
TROUBLESHOOTING AND ROUTINE MAINTENANCE 19 - 15 ZleMFC-US-FAX-4750e/5750e- Packing and Shipping the Machine Whenever you transport the machine, use the packing materials that came with your machine. Also, follow the steps below to pack the machine so it won’t be damaged, which would void the machine’s warranty. 1Remove the telephone line cord and unplug the machine from the AC outlet. 2Open the front cover. 3Remove the drum unit. Caution Remove the drum unit and toner cartridge assembly. Leave the toner cartridge installed in the drum unit. 4Place the drum unit and toner cartridge assembly into the plastic bag and seal the bag. 5Close the front cover. Fold down the front output bin extension. Remove the telephone line cord, document tray, document support, handset, and handset cord, and pack them. 6If Cassette #2 is connected, unplug the modular cable from the modular jack of the Brother machine.
19 - 16 TROUBLESHOOTING AND ROUTINE MAINTENANCE ZleMFC-US-FAX-4750e/5750e- 7If you have the Cassette #2 option, carefully pick up the machine and remove Cassette #2 to pack it separately. 8Pack additional parts (cord, paper cassette, printed materials) in the carton. Caution Be sure to take out any optional memory upgrade boards or network cards before packing the machine. NoteIf you are returing the machine to Brother as part of the Exchange Service, pack only the machine. Keep all separate parts to use with your “Exchange” machine. Cassette #2 Bottom Layer
TROUBLESHOOTING AND ROUTINE MAINTENANCE 19 - 17 ZleMFC-US-FAX-4750e/5750e- 9Close the carton and tape it shut. Middle Layer Top Layer
19 - 18 TROUBLESHOOTING AND ROUTINE MAINTENANCE ZleMFC-US-FAX-4750e/5750e- Routine Maintenance Keep your machine in optimum condition by cleaning it on a regular basis. It is a good idea to clean the drum unit during this routine. Avoid using thinners or other organic solvents and do not use water. Cleaning the Document Scanner 1Unplug the telephone line, and then the power cord. When you reconnect these lines later, connect the power cord first, and then the telephone line. 2Lift the control panel cover. 3Clean the white bar and glass cover under the white bar. Moisten a small, clean, soft, lint-free cloth with isopropyl alcohol and carefully remove dirt from the glass cover and the white bar. Cleaning the Printer Caution Do not use isopropyl alcohol to remove dirt from the control panel. It may crack the panel. Do not use isopropyl alcohol to clean the scanner window. Do not touch the scanner window with your finger. The drum unit contains toner, so handle it carefully. If toner scatters and your hands or clothes get dirty, immediately wipe or wash it off with cold water. 1Open the front cover. 2Remove the drum unit assembly.
TROUBLESHOOTING AND ROUTINE MAINTENANCE 19 - 19 ZleMFC-US-FAX-4750e/5750e- WARNING Just after you have used the machine, some internal parts of the machine are extremely HOT! When you open the front cover of the machine, never touch the shaded parts as shown in the diagram below. 3Gently clean the scanner window by wiping with a clean soft dry cloth. Do not use isopropyl alcohol. Cleaning the Drum Unit We recommend placing the drum unit on a drop cloth or large disposable paper to avoid spilling and scattering toner. 1Clean the primary corona wire inside the drum unit by gently sliding the tab from right to left several times. 2Return the tab and snap it into the Home position (). Caution If the tab is not at the Home position, printed pages may have vertical stripes. HOT! Scanner Window Home Position ( ) Ta bCorona Wire