Brother Mfc 7320r User Manual
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Troubleshooting and routine maintenance111 B CAUTION We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. cIf you cannot remove the drum unit and toner cartridge assembly easily, do not use extra force. Instead, lift the scanner cover. Use both hands to carefully pull the jammed paper up and out of the output tray opening. dClose the scanner cover. eIf you cannot pull the jammed paper out of the output tray opening, take the paper tray completely out of the machine. fPull the jammed paper out of the paper tray opening. gPut the drum unit and toner cartridge assembly back in the machine. hPut the paper tray back in the machine. iClose the front cover.
112 Paper is jammed at the back of the machine B aOpen the front cover. bSlowly take out the drum unit and toner cartridge assembly. CAUTION We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. cOpen the back cover (back output tray). dPull the tabs toward you to open the fuser cover (1). ePull the jammed paper out of the fuser unit. fClose the back cover (back output tray). gPut the drum unit and toner cartridge assembly back in the machine. hClose the front cover. 1
Troubleshooting and routine maintenance113 B Paper is jammed inside the drum unit and toner cartridge assembly B aOpen the front cover. bSlowly take out the drum unit and toner cartridge assembly. CAUTION We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. cPush down the green lock lever and take the toner cartridge out of the drum unit. CAUTION Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations below. dClear the jammed paper if there is any inside the drum unit.
114 ePut the toner cartridge back into the drum unit until you hear it lock into place. If you put it in correctly, the green lock lever will lift automatically. fPut the drum unit and toner cartridge assembly back in the machine. gClose the front cover. Routine maintenanceB WARNING Use neutral detergents. DO NOT use any flammable substances, spray or organic solvent/liquids containing alcohol/ammonia to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock. For more infomation see Important safety instructions on page 86. CAUTION The drum unit contains toner, so handle it carefully. If tone r scatters on your hands or clothes, wipe or wash it off with cold water at once. Cleaning the outside of the machineB aTurn off the machine. Unplug the telephone line cord first, disconnect all cables, and then unplug the power cord from the electrical socket. bPull the paper tray completely out of the machine.
Troubleshooting and routine maintenance115 B cWipe the outside of the machine with a soft cloth to remove dust. dRemove any paper that is in the paper tray. eWipe the inside and the outside of the paper tray with a soft cloth to remove dust. fRe-load the paper and put the paper tray firmly back in the machine. gPlug the machine’s power cord back into the electrical socket first, and reconnect all cables and telephone line cord. Turn on the machine. Cleaning the scanner glassB aTurn off the machine. Unplug the telephone line cord first, disconnect all cables and then unplug the power cord from the electrical socket. bLift the document cover (1). Clean the white plastic surface (2) and scanner glass (3) underneath it with a soft lint-free cloth moistened with water. cIn the ADF unit, clean the white bar (1) and the scanner glass strip (2) underneath it with a soft lint-free cloth moistened with water. 13 2 1 2
116 dPlug the machine’s power cord back into the electrical socket first, and reconnect all cables and telephone line cord. Turn on the machine. Note In addition to cleaning the scanner glass and glass strip with a soft lint-free cloth moistened with water, run your finger tip over the glass to see if you can feel anything on it. If you feel dirt or debris, clean the glass again concentrating on that area. You may need to repeat the cleaning process three or four times. To test, make a copy after each cleaning. Cleaning the laser scanner windowB WARNING Use neutral detergents. DO NOT use any flammable substances, spray or organic solvent/liquids containing alcohol/ammonia to clean the inside or outside of the machine. Doing this may cause a fire or electrical shock. For more infomation see Important safety instructions on page 86. CAUTION DO NOT touch the laser scanner window with your fingers. aBefore you clean the inside of the machine, turn off the machine. Unplug the telephone line cord first, and then unplug the power cord from the electrical socket. bOpen the front cover and slowly take out the drum unit and toner cartridge assembly.
Troubleshooting and routine maintenance117 B WARNING HOT SURFACE After you have just used the machine, some internal parts of the machine will be extremely hot. To prevent injury, when you open the front or back cover (back output tray) of the machine, DO NOT touch the shaded parts shown in the illustration. CAUTION To prevent damage to the machine caused by static electricity, DO NOT touch the electrodes shown in the illustration. We recommend that you place the drum unit on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. cWipe the laser scanner window by wiping it with a clean soft, dry lint-free cloth.
118 dPut the drum unit and toner cartridge assembly back in the machine. eClose the front cover. fPlug the machine’s power cord back into the electrical socket first, and then plug in the telephone line cord. Turn on the machine. Cleaning the corona wireB If you have print quality problems, clean the corona wire as follows: aTurn off the machine. Unplug the telephone line cord first, disconnect all cables, and then unplug the power cord from the electrical socket. bOpen the front cover. cSlowly take out the drum unit and toner cartridge assembly. CAUTION We recommend that you place the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. To prevent damage to the machine caused by static electricity, DO NOT touch the electrodes shown in the illustration.
Troubleshooting and routine maintenance119 B dClean the corona wire inside the drum unit by gently sliding the green tab from right to left and left to right several times. CAUTION Be sure to return the green tab to the home position ( a) (1). If you do not, printed pages may have a vertical stripe. ePut the drum unit and toner cartridge assembly back in the machine. fClose the front cover. gPlug the machine’s power cord back into the electrical socket first, and then reconnect all cables and telephone line cord. Turn on the machine. CAUTION To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations below. 1
120 Cleaning the drum unitB If you have print quality problems, clean the drum unit as follows. aTurn off the machine. Unplug the telephone line cord first, and then unplug the power cord from the electrical socket. bOpen the front cover. cSlowly take out the drum unit and toner cartridge assembly. CAUTION We recommend that you put the drum unit and toner cartridge assembly on a clean, flat surface with a sheet of disposable paper or cloth underneath it in case you accidentally spill or scatter toner. To prevent damage to the machine caused by static electricity, DO NOT touch the electrodes shown in the illustration. dPush down the green lock lever and take the toner cartridge out of the drum unit. CAUTION Handle the toner cartridge carefully. If toner scatters on your hands or clothes, wipe or wash it off with cold water at once. To avoid print quality problems, DO NOT touch the shaded parts shown in the illustrations below.