Brother Hl 4070cdw User Manual
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Troubleshooting 152 7 cIf the paper is not caught in the paper tray, open the back cover. dPull out the jammed paper slowly. HOT SURFA CE After you have just used the printer, some internal parts of the printer will be extremely hot. Wait for the printer to cool down before you touch the internal parts of the printer. eFully close the back cover. fPut the paper tray back in the printer.
Troubleshooting 153 7 Jam Rear (paper jam behind the back cover)7 Jam Rear HOT SURFA CE After you have just used the printer, some internal parts of the printer will be extremely hot. When you open the front cover or back cover of the printer, DO NOT touch the shaded parts shown in the illustrations. If a paper jam occurs behind the face-up output tray, follow these steps: aOpen the back cover.
Troubleshooting 154 7 b Pull the tabs at the left and right hand sides toward you and fold down the fuser cover (1). cUsing both hands, gently pull the jammed paper out of the fuser unit. HOT SURFA CE After you have just used the printer, some internal parts of the printer will be extremely hot. Wait for the printer to cool down before you touch the internal parts of the printer. 1
Troubleshooting 155 7 d Close the fuser cover (1) and lift the tabs at the left and right hand sides. eFully close the back covers. 1
Troubleshooting 156 7 Jam Inside (paper jam inside the printer)7 Jam Inside HOT SURFA CE After you have just used the printer, some internal parts of the printer will be extremely hot. When you open the front cover or back cover of the printer, DO NOT touch the shaded parts shown in the illustrations. If a paper jam occurs inside the printer, follow these steps: aTurn off the printer power switch. Press the front cover release button and then open the front cover.
Troubleshooting 157 7 bHold the green handle of the drum unit. Lift the drum unit up and then pull it out until it stops. Note If you cannot pull the drum unit out, make sure that the front cover is fully open as shown below. cRelease the gray lock lever (1) that is on the left side of the printer. Pull the drum unit completely out using the green handles on the drum unit. 1
Troubleshooting 158 7 CAUTION Hold the green handles of the drum unit when you carry it. DO NOT hold the sides of the drum unit. We recommend that you place the drum unit on a clean, flat surface with a piece of disposable paper underneath it in case you accidentally spill or scatter toner. To prevent damage to the printer from static electricity, DO NOT touch the electrodes shown in the illustration. dPull out the jammed paper slowly.
Troubleshooting 159 7 ePut the drum unit back in the printer as follows. 1Make sure that the gray lock lever (1) is in the up position and put the drum unit in the printer. Push down the gray lock lever (1). Note When you put the drum unit in the printer, match the green guides (1) of the drum unit handle to the green arrows (2) on both sides of the machine. 2Push the drum unit in until it stops. fClose the front cover. 11 2 1 2 1
Troubleshooting 160 7 Improving the print quality7 If you have a print quality problem, print a test page first (see Menu tableon page 78). If the printout looks good, the problem is probably not the printer. Check the interface cable or try the printer on another computer. This section gives information on the following topics. Note You can resolve a print quality problem by replacing a toner cartridge with a new one when the toner indicators start blinking or the LCD shows the Toner Life End message. Examples of poor print qualityRecommendation White lines or bands or ribbing across the page Make sure that the printer is on a solid level surface. Make sure that the back cover is closed properly. Make sure that the toner cartridges are installed properly. Make sure that the drum unit is installed properly. Put in a new drum unit. (See Replacing the drum uniton page 106.) Colors are light or unclear on the whole page Make sure that the recommended paper was used. Change the paper to freshly unpacked paper. Make sure that the back cover is closed properly. Shake the toner cartridges gently. Wipe the scanner windows with a dry lint free soft cloth. (See Cleaning the inside of the scanner windowson page 124.) White streaks or bands down the page Shake the toner cartridges gently. Wipe the scanner windows with a dry lint free soft cloth. (See Cleaning the inside of the scanner windowson page 124.) Identify the missing color and put in a new toner cartridge. (See Replacing a toner cartridgeon page 99.) ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
Troubleshooting 161 7 Colored streaks or bands down the page Replace the toner cartridge that matches the color of the streak or band. (See Replacing a toner cartridgeon page 99.) Clean all four corona wires (one for each color) inside the drum unit by sliding the green tab. (See Cleaning the corona wireson page 128.) Make sure the corona wire cleaners are at their home positions (a). Put in a new drum unit. (See Replacing the drum uniton page 106.) Colored lines across the page Replace the toner cartridge that matches the color of the line. (See Replacing a toner cartridgeon page 99.) Put in a new drum unit. (See Replacing the drum uniton page 106.) White spots or hollow print Change the paper to freshly unpacked paper. Make sure that you use paper that meets our specifications. (See About paperon page 6.) Make sure that the media type setting in the driver matches the type of paper you are using. (See About paperon page 6.) Check the printer’s environment. Conditions such as high humidity can cause white spots or hollow print. (See Positioning the printeron page 5.) Completely blank or some colors are missing Identify the missing color and make sure that the toner cartridge is installed properly. Put in a new toner cartridge. (See Replacing a toner cartridgeon page 99.) Put in a new drum unit. (See Replacing the drum uniton page 106.) Examples of poor print qualityRecommendation ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.