Brother DCP 9045CDN User Manual
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Troubleshooting and routine maintenance 63 C Printing difficulties DifficultiesSuggestions No printout.„Check that the machine is plugged in and the power switch is turned on. „Check that the toner cartridges and drum unit are installed properly. (See Replacing the drum unit on page 120.) „Check the interface cable connection on both the machine and your computer. (See the Quick Setup Guide.) „Check that the correct printer driver has been installed and chosen. „Check to see if the LCD is showing an error message. (See Error and maintenance messages on page 79.) „Check the machine is online: (For Windows Vista ®) Click the Start button, Control Panel, Hardware and Sound, and then Printers. Right-click ‘Brother DCP-9045CDN Printer’. Make sure that ‘Use Printer Offline’ is unchecked. (For Windows ® XP and Windows Server® 2003) Click the Start button and select Printers and Faxes. Right-click ‘Brother DCP-9045CDN Printer’. Make sure that ‘Use Printer Offline’ is unchecked. (For Windows ® 2000) Click the Start button and select Settings and then Printers. Right-click ‘Brother DCP-9045CDN Printer’. Make sure that ‘Use Printer Offline’ is unchecked. The machine prints unexpectedly or it prints garbage.„Pull out the paper tray and wait until the machine stops printing. Then turn off the machine’s power switch and disconnect from the power for several minutes. „Check the settings in your application to make sure it is set up to work with your machine. The machine prints the first couple of pages correctly, then some pages have text missing.„Check the settings in your application to make sure that it is set up to work with your machine. „Your computer is not recognising the machine’s input buffer’s full signal. Make sure that you connected the interface cable correctly. (See the Quick Setup Guide.) The headers or footers appear when the document displays on the screen but they do not show up when it is printed.There is an unprintable area on the top and bottom of the page. Adjust the top and bottom margins in your document to allow for this. The machine does not print on both sides of the paper even though the printer driver setting is Duplex.Check the paper size setting in the printer driver. You need to select A4, Legal or Folio. The machine is not printing or has stopped printing and the machine’s Status LED turns yellow.Press Job Cancel. As the machine cancels the job and clears it from the memory it may produce an incomplete printout.
64 Scanning difficulties DifficultiesSuggestions TWAIN errors appear while scanning.Make sure that the Brother TWAIN driver is chosen as the primary source. In PaperPort ™ 11SE, click File, Scan or Get Photo and choose the Brother TWAIN driver. Network scanning does not work. See Network difficulties on page 65. Software difficulties DifficultiesSuggestions Cannot install software or print. Run the Repair MFL-Pro Suite program on the CD-ROM. This program will repair and reinstall the software. Cannot perform ‘2 in 1’ or ‘4 in 1’ printing.Check that the paper size setting in the application and in the printer driver are the same. The machine does not print from Adobe Illustrator. Try to reduce the print resolution. (See Advanced tab in the Software User’s Guide on the CD-ROM.) Paper handling difficulties DifficultiesSuggestions The machine does not load paper. The LCD shows No Paper or a Paper Jam message. „If there is no paper, load a new stack of paper into the paper tray. „If there is paper in the paper tray, 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 put it back into the paper tray. „Reduce the amount of paper in the paper tray, and then try again. „Check that the MP tray mode is not chosen in the printer driver. „If the LCD shows Paper Jam message and you still have a problem, see Paper jams on page 85. The machine does not feed paper from the MP tray.„Fan the paper well and put it back in the tray firmly. „Make sure that MP tray mode is chosen in the printer driver. How do I print on envelopes? You can load envelopes from the MP tray. Your application 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 application. (See your application’s manual for more information.) Which paper can I use? You can use plain paper, recycled paper, envelopes and labels that are made for laser machines. (For details, see Acceptable paper and other media on page 10.) There is a paper jam. (See Paper jams on page 85.) Print quality difficulties DifficultiesSuggestions Printed pages are curled.„Low quality thin or thick paper or not printing on the recommended side of the paper could cause this problem. Try turning over the stack of paper in the paper tray. „Make sure that you choose the Paper Type that suits the media type you are using. (See Acceptable paper and other media on page 10.)
Troubleshooting and routine maintenance 65 C Printed pages are smeared. The Paper Type setting may be incorrect for the type of print media you are using, or the print media may be too thick or have a rough surface. (See Acceptable paper and other media on page 10 and Basic tab in the Software User’s Guide on the CD-ROM.) Printouts are too light.„If this problem occurs when making copies, turn Toner Save mode to off in the machine menu settings. (See Toner save on page 22.) „Set Toner Save mode to off in the Advanced tab in the printer driver. (See Advanced tab in the Software User’s Guide on the CD-ROM.) Network difficulties DifficultiesSuggestions Cannot print over a wired Network. Make sure your machine is powered on and is on-line and in Ready mode. Print the Network Configuration list to see your current Network settings. (See User Settings List on page 23.) Reconnect the LAN cable to the hub to verify that the cable and network connections are good. If possible, try connecting the machine to a different port on your hub using a different cable. If the connections are good, the upper LED of the back panel of the machine will be green. Print quality difficulties (continued) DifficultiesSuggestions
66 The network scanning feature does not work. The network printing feature does not work.(For Windows® only) The firewall setting on your PC may be rejecting the necessary network connection. Follow the instructions below to configure your firewall. If you are using personal firewall software, see the User’s Guide for your software or contact the software manufacturer. For Windows ® XP SP2 users: aClick the Start button, Control Panel, Network and Internet Connections, and then Windows Firewall. Make sure that Windows Firewall on the General tab is set to On. bClick the Advanced tab and Settings... button of the Network Connection Settings. cClick the Add button. dTo add port 54925, for network scanning, enter the information below: 1. In Description of service: Enter any description, for example “Brother Scanner”. 2. In Name or IP address (for example 192.168.0.12) of the computer hosting this service on your network: Enter “Localhost”. 3. In External Port number for this service: Enter “54925 ”. 4. In Internal Port number for this service: Enter “54925 ”. 5. Make sure UDP is selected. 6. Click OK. eIf you still have trouble with your network connection, click the Add button. fTo add port 137 for both network scanning and network printing, enter the information below: 1. In Description of service: Enter any description, for example “Brother network scanning” 2. In Name or IP address (for example 192.168.0.12) of the computer hosting this service on your network: Enter “Localhost”. 3. In External Port number for this service: Enter “137 ”. 4. In Internal Port number for this service: Enter “137 ”. 5. Make sure UDP is selected. 6. Click OK. gMake sure if the new setting is added and is checked, and then click OK. Network difficulties (continued) DifficultiesSuggestions
Troubleshooting and routine maintenance 67 C The network scanning feature does not work. The network printing feature does not work. (continued)For Windows Vista® users: aClick the Start button, Control Panel, Network and Internet, Windows Firewall and click Change settings. bWhen the User Account Control screen appears, do the following. „Users who have administrator rights: Click Continue. „For users who do not have administrator rights: Enter the administrator password and click OK. cMake sure that Windows Firewall on the General tab is set to On. dClick the Exceptions tab. eClick the Add port... button. fTo add port 54925 for network scanning, enter the information below: 1. In Name: Enter any description, for example “Brother Scanner”. 2. In Port number: Enter “54925 ”. 3. Make sure UDP is selected. Then click OK. gMake sure that the new setting is added and is checked, and then click Apply. hIf you still have trouble with your network connection such as network scanning or printing, check File and Printer Sharing box in the Exceptions tab and then click Apply. Your computer cannot find your machine.For Windows ® users: The firewall setting on your PC may be rejecting the necessary network connection. For details, see the instruction above. For Macintosh ® users: Re-select your machine in the DeviceSelector application located in Macintosh HD/Library/Printers/Brother/Utilities or from the Model pop-up menu of ControlCenter2. Other DifficultiesSuggestions The machine will not turn on. Adverse conditions on the power connection (such as lightning or a power surge) may have triggered the machine’s internal safety mechanisms. Turn the machine off and unplug the power cord. Wait for ten minutes, then plug in the power cord and turn the machine on. Network difficulties (continued) DifficultiesSuggestions
68 Improving the print qualityC If you have a print quality problem, print a test page first (Menu, 3, 2, 3). If the printout looks good, the problem is probably not the machine. Check the interface cable or try the machine on another computer. Note You can resolve a print quality problem by replacing a toner cartridge with a new one when 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 machine is on a solid level surface. „Make sure that the toner cartridges are installed properly. (See Replacing a toner cartridge on page 115.) „Shake the toner cartridges gently. „Make sure that the drum unit is installed properly. (See Replacing the drum unit on page 120.) „Make sure that you use paper that meets our specifications. A rough surfaced paper or thick print media can cause the problem. (See Acceptable paper and other media on page 10.) „Clean the laser scanner windows with a soft cloth. (See Cleaning the laser scanner windows on page 97.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) Colours 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 front cover is closed properly. „Shake the toner cartridges gently. „Clean the laser scanner windows with a soft cloth. (See Cleaning the laser scanner windows on page 97.) „Turn off Toner Save. (See Toner save on page 22.) White streaks or bands down the page „Shake the toner cartridges gently. „Clean the laser scanner windows with a soft cloth. (See Cleaning the laser scanner windows on page 97.) 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 and routine maintenance 69 C Coloured streaks or bands down the page „One of the toner cartridges may be damaged. Replace the toner cartridge that matches the colour of the streak or band. (See Replacing a toner cartridge on page 115.) „Clean all four corona wires (one for each colour) of the drum unit by sliding the green tab. (See Cleaning the corona wires on page 102.) „Make sure each corona wire’s green tab is at the home position (b). „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) „The fuser unit may have a smudge mark. Call your Brother dealer. Coloured lines across the page „One of the toner cartridges may be damaged. Replace the toner cartridge that matches the colour of the line. (See Replacing a toner cartridge on page 115.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) „Clean all four corona wires (one for each colour) of the drum unit by sliding the green tab. (See Cleaning the corona wires on page 102.) „Clean the laser scanner windows with a soft cloth. (See Cleaning the laser scanner windows on page 97.) White spots or hollow print „Make sure that you use paper that meets our specifications. (See Acceptable paper and other media on page 10.) „Make sure that the recommended paper was used. „Choose Thick paper mode in the printer driver or in the machine ’s Paper Type menu setting, or use thinner paper than you are currently using. (See Paper type on page 20 and Basic tab in the Software User’s Guide on the CD-ROM.) „Change the paper to fresh, unopened paper. „Check the machine ’s environment. Conditions such as high humidity can cause hollow print. (See Choosing a location on page 48.) „Clean all four corona wires (one for each colour) of the drum unit by sliding the green tab. (See Cleaning the corona wires on page 102.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit on page 120.) „Clean the drum unit. (See Cleaning the drum unit on page 105.) Completely blank or some colours are missing. „Make sure that the toner cartridges are installed properly. (See Replacing a toner cartridge on page 115.) „One of the toner cartridges may be damaged. Identify the missing colour and put in a new toner cartridge for the colour with the white line. (See Replacing a toner cartridge on page 115.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) 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.
70 Coloured spots at 75 mm „Dust, paper powder, glue, and so on may stick to the surface of the photosensitive drum (OPC) and cause black or white spots to appear on printed documents. „Make a few copies of a blank, white sheet of paper. (See Making multiple copies on page 28.) „If you still see the spots on printed documents after making multiple copies, clean the drum unit. (See Cleaning the drum unit on page 105.) „If the print quality still has not improved you need to install a new drum. (See Replacing the drum unit on page 120.) Toner scatter or toner stain „Check the machine’s environment. Conditions such as high humidity and high temperatures may cause this print quality problem. (See Choosing a location on page 48.) „Make sure that you use paper that meets our specifications. Rough- surfaced paper may cause the problem. (See Acceptable paper and other media on page 10.) „Install a new toner cartridge for the colour causing the problem. (See Replacing a toner cartridge on page 115.) „Clean the corona wires and the drum unit for the colour causing the problem. (See Cleaning the corona wires on page 102 and Cleaning the drum unit on page 105.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit on page 120.) Grey or coloured background „Make sure that you use paper that meets our specifications. (See Acceptable paper and other media on page 10.) „Check the machine ’s environment. Conditions such as high temperatures and high humidity can increase the amount of background shading. (See Choosing a location on page 48.) „Install a new toner cartridge for the colour causing the problem. (See Replacing a toner cartridge on page 115.) „Clean the corona wires of the drum unit for the colour causing the problem. (See Cleaning the corona wires on page 102.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit on page 120.) Page skewed „Make sure the paper or other print media is loaded properly in the paper tray and that the guides are not too tight or too loose against the paper stack. „Set the paper guides correctly. „The paper tray may be too full. „Make sure that you use paper that meets our specifications. (See Acceptable paper and other media on page 10.) 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. abcdefghijklmnopqrstuvwxy z. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxy z. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxy z. ABCDEFGHIJKLMNOPQRSTUVWXYZ . 0123456789. abcdefghijklmnopqrstuvw xyz.
Troubleshooting and routine maintenance 71 C Ghost „Make sure that you use paper that meets our specifications. Rough- surfaced paper or thick paper may cause the problem. (See Acceptable paper and other media on page 10.) „Make sure that you choose the proper media type in the printer driver or in the machine ’s Paper Type menu setting. (See Acceptable paper and other media on page 10 and Basic tab in the Software User’s Guide on the CD-ROM.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) The colour of your printouts are not what you expected.„Make sure that the toner cartridges are installed properly. (See Replacing a toner cartridge on page 115.) „Make sure that the toner cartridges are not empty. (See Toner life end message on page 115.) „Make sure that the drum unit is installed properly. (See Replacing the drum unit on page 120.) „Make sure that the belt unit is installed properly. (See Replacing the belt unit on page 127.) „Perform the calibration by using the control panel. Press Menu, 3, 6. aPress OK to select Calibrate. bPress 1 to select Yes. (For more information, see Software User’s Guide on the CD-ROM.) „Adjust the colour by using the custom setting in the printer driver. Colours the machine can print and colours you see on a monitor are different. The machine may not be able to reproduce the colours on your monitor. „Make sure that you use paper that meets our specifications. (See Acceptable paper and other media on page 10.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) „Put in a new belt unit. (See Replacing the belt unit on page 127.) All one colour„Clean the corona wires of the drum unit for the colour causing the problem. (See Cleaning the corona wires on page 102.) If the print quality has not improved, put in a new drum unit. (See Replacing the drum unit on page 120.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) Uneven density appears periodically across the page „Identify the colour that is uneven and put in a new toner cartridge for that colour. (See Replacing a toner cartridge on page 115.) „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) „Make sure that the fuser unit is installed properly. Examples of poor print qualityRecommendation ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.
72 Colour misregistration „Make sure that the drum unit is installed properly. (See Replacing the drum unit on page 120.) „Make sure that the belt unit is installed properly. (See Replacing the belt unit on page 127.) „Make sure that the waste toner box is installed properly. (See Replacing the waste toner box on page 132.) „Perform the auto colour registration by using the control panel. Press Menu, 3, 7, 1. Or „Perform the manual colour registration by using the control panel. aPrint the correction chart by using the control panel. Press Menu, 3, 8, 1. bEnter the correction value on the chart. Press Menu, 3, 8, 2. If the colour misregistration is not corrected after registering the colour manually, take all the toner cartridges out of the drum unit and turn the drum unit over, then make sure that four drum unit gears are in the home position. The home position of each drum can be identified by matching the number on the drum unit gear to the same number on the side of the drum unit as shown in the illustration. „The drum unit may be damaged. Put in a new drum unit. (See Replacing the drum unit on page 120.) „Put in a new belt unit. (See Replacing the belt unit on page 127.) „Put in a new waste toner box. (See Replacing the waste toner box on page 132.) „If solid areas of colour or images have cyan, magenta or yellow fringes, you can use the auto-registration feature to correct the problem. Examples of poor print qualityRecommendation ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz. ABCDEFGHIJKLMNOPQRSTUVWXYZ. 0123456789. abcdefghijklmnopqrstuvwxyz.