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Brother MFC-9840CDW manual Cleaning the corona wires

Models: MFC-9840CDW

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Page 174

Cleaning the corona wires

If you have print quality problems, clean the corona wires as follows:

a Turn off the machine’s power switch. Unplug the telephone line cord first, disconnect all cables, and then unplug the power cord from the AC power outlet.

b Press the front cover release button and then open the front cover.

c Hold the green handle of the drum unit. Lift the drum unit up and then pull it out until it stops.

d Hold the handle of the toner cartridge and pull it out of the drum unit. Repeat this for all the toner cartridges.

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Brother MFC-9840CDW manual Cleaning the corona wires

Contents

USER’S Guide If you need to call Customer Service FAQs frequently asked questions Brother numbersRegister your product For Customer Service Service Center Locator USA onlyService Center Locations Canada only Description Ordering accessories and suppliesCanada IiiUSA and Canada Compilation and Publication NoticeWhat is not covered What is coveredWhat is the length of the Warranty Periods Who is coveredWhat Brother will do What you must provideLimitations Canada only ViiTable of Contents Section II Fax Sending a faxTelephone services and external devices Section III Copy Section IV Walk-up printingSection V Software Section VI AppendixesXii Troubleshooting and routine maintenance 114 XiiiSpecifications 224 XivGeneral General information Using the documentationAccessing the User’s Guides BoldViewing documentation Windows How to find scanning instructionsViewing documentation Software Users GuidePresto! PageManager Users Guide Accessing Brother support For Windows Control panel overview Copy keys Contrast/Quality Mode keys FaxResolution Enlarge/ReduceJob Cancel Print keys DirectSecure Status LED indications LED StatusMachine Status Description AgainRecommended paper Loading paper and documentsAcceptable paper and other media Type and size of paperTray and optional unit Name Recommended paper specificationsPaper capacity of the paper trays Paper size Paper types No. of sheetsHandling and using special paper Types of paper to avoidMm or greater Envelopes Feeding directionTypes of envelopes to avoid Labels Unprintable areaUnprintable area for copies Types of labels to avoidLandscape Loading paper and envelopesPortrait 16 in .23 mmLoading plain paper in the paper tray Loading paper and documents Single-sided document Using the ADF automatic document feederLoading documents Sided documentUsing the scanner glass Paper settings General setupMode timer Paper typeTray use in copy mode Paper sizeTray use in fax mode Tray use in print modeBeeper volume Volume settingsRing volume Speaker volumeToner save Ecology featuresAutomatic daylight savings time Sleep timeLCD contrast Dial PrefixSetting up the password Security featuresSetting lock Changing your setting lock passwordTurning setting lock off Turning setting lock on/offTurning setting lock on Secure Function LockSetting the password for the administrator Setting up the Public userTurning Secure Function Lock on Setting up restricted usersTurning Secure Function Lock on/off Turning Secure Function Lock offSwitching Users When Copy mode is disabledWhen Scan mode is disabled Fax Sending a fax How to faxEntering fax mode Sending a single-sided fax from the ADFLong edge Sending a fax from the scanner glassChanging a 2-sided fax layout Short edgeCanceling a fax in progress Broadcasting black & white onlyUse the Search/Speed Dial to help you choose numbers easily Sending faxes using multiple settings Canceling a broadcast in progressAdditional sending operations Composing your own comments Send a cover page for the next faxUsing a printed cover ContrastSend a cover page for all faxes To change the fax resolution for the next fax Changing fax resolutionDual access Black & white only To change the default fax resolutionReal time transmission Overseas modeDelayed fax Black & white only Sending in real time for all faxesChecking and canceling waiting jobs Delayed batch transmission black & white onlyManual transmission Sending a fax manuallyOut of memory message Sending a fax at the end of a conversationChoose the correct Receive Mode Receiving a faxDo you expect to receive very few faxes? Fax/Tel Using receive modesFax Only ManualReceive mode settings Ring delayRing time Setting the print density Easy receiveDuplex 2-sided printing for Fax mode Additional receiving operationsPrinting a reduced incoming fax Printing a fax from the memory Setting the fax receive stamp black & white onlyReceiving a fax at the end of a conversation Press Black Start or Color Start Press Stop/ExitTelephone services and external devices Telephone line servicesVoice Mail Do you have voice mail? Distinctive ringWhat does your telephone company’s ‘Distinctive Ring’ do? What does Brother’s ‘distinctive ring’ do?Before you choose the ring pattern to register Registering the distinctive ring pattern Very importantRing Rings Pattern Connecting an external TAD telephone answering device Turning off distinctive ringConnections Special line considerationsRoll over telephone lines Two-line telephone system Converting telephone wall outletsMulti-line connections PBX For Fax/Tel mode onlyExternal and extension telephones Operation from extension telephonesConnecting an external or extension telephone Using a non-Brother cordless external handsetUsing remote codes Manual dialing How to dialDialing and storing numbers One-touch dialingFax redial SearchLdap Search Press Search/Speed DialStoring numbers Storing a pauseStoring one-touch dial numbers Storing speed-dial numbers Fax/Tel. Press OKChanging one-touch and speed-dial numbers Setting up groups for broadcasting Dialing access codes and credit card numbers PauseTone or pulse Canada only Remote fax options black & white only Fax forwardingRemote fax options are not available for color fax 0 0 5 5 5 1 2 3 4 # # PagingFax storage # #PC fax receive PC Fax Msg001Changing remote fax options Turning off remote fax optionsSetting a remote access code Using your remote access codeRemote retrieval Retrieving fax messages Changing the fax forwarding numberRetrieve a fax Remote fax commandsChange the receive mode Check the receiving statusPolling Polling receiveSequential polling Setup for polled transmit Polled transmit black & white onlyTransmission verification report Printing reportsFax reports Fax journalHow to print a report ReportsPress Black Start or Color Start. d Press Stop/Exit Chapter Copy How to copy Making copiesEnlarging or reducing the image copied Copy options temporary settingsImproving copy quality Press Contrast/QualityPress Enlarge/Reduce If you are using the scanner glass, go to gMaking N in 1 copies page layout Press Black Start or Color Start to scan„ 2 in 1 P „ 2 in 1 L „ 4 in 1 P „ 4 in 1 L Duplex 2-sided copyingDuplex Copy long edge „ 2 in 1 P „ 2 in 1 L „ 4 in 1 PAdvanced Duplex Copy short edge Sorting copies using the ADF BrightnessContrast Color saturationPress Tray Select Out of memory messageTray selection Press Tray SelectChapter Walk-up printing Setting your digital camera Before using PictBridgeUsing PictBridge Printing photos from a digital cameraMachine settings Default settings Printing imagesConnecting a camera as a storage device Understanding the error messagesDpof printing Printing data from a USB flash memory drive Supported file formatsCreating a PRN or PostScript 3 file for direct printing Printing data directly from the USB flash memory drive Press Black Start or Color Start if you have finished Press Black Start or Color Start to print the dataChapter Software For Windows Software and network featuresHow to read Html User’s Guide For Macintosh204 110114 224Safety and legal Choosing a locationTo use the machine safely 100 Important Safety Instructions 101Important information Standard telephone and FCC notices102 103 Important-about the interface cable 104Disconnect device Laser safetyIndustry Canada Compliance Statement Canada only LAN connectionManufactured Important safety instructionsFDA regulations 106107 Legal limitations for copying 108Trademarks 109Lower tray unit Dimm memory OptionsOptions 110Installing the optional paper tray Optional paper tray111 Memory board For Macintosh users112 Installing extra memory 113If you are having difficulty with your machine Troubleshooting and routine maintenanceTroubleshooting Printing or receiving faxesHandling incoming calls Telephone line or connectionsSending faxes 115Printing difficulties Menu access difficultiesCopy quality difficulties 116Scanning difficulties Software difficulties117 Network difficulties Paper handling difficultiesPrint quality difficulties 118Network difficulties 119Firewall and click Change settings 120Improving the print quality Examples of poor print Recommendation Quality121 Toner cartridge on 122Examples of poor print quality 123124 Enter the correction value on the chart. Press Menu, 4, 8 125Device Options, Print Setting, and then check Improve pattern printing or Improve Thin Line boxes126 Choosing a location on 127Curled or wave 128Abcdefg 129Steps 130Examples of poor print Recommendation Quality 131Setting dial tone detection Telephone line interference132 Press Black Start or Color Start and try it Error and maintenance messagesError Message Cause Action 133Waste Toner Box 134Document Jam 135Print operation in process Fax sending or copy operation in progress„ Press Black Start or Color Start to send or 136Press Black Start or Color Start and try again Press Stop/Exit137 Toner Low 138Transferring faxes to another fax machine Checking if the machine has faxes in its memoryTransferring faxes to your PC 139Document is jammed under the document cover Document jamsDocument is jammed in the top of the ADF unit Document is jammed at the output trayPaper is jammed in the MP tray Paper jamsDocument is jammed in the duplex slot 141Paper is jammed in Paper Tray 1 or Tray 142Paper is jammed inside the machine 143144 145 146 147 Paper is jammed at the back of the machine 148149 Paper is jammed underneath Paper Tray 1 or in the fuser unit 150151 Clean the outside of the machine as follows Routine maintenanceCleaning the outside of the machine 152Cleaning the scanner 153Cleaning the laser scanner windows 154155 156 157 Cleaning the corona wires 158Troubleshooting and routine maintenance Cyan Magenta Yellow Black 160Cleaning the drum unit 161162 163 164 165 166 Cyan Magenta Yellow Black 167 Push the drum unit in until it stops 168Replacing the consumable items 169170 Toner Low171 PF Kit MPToner life end message Replacing a toner cartridgeToner low message 172Replacing the toner cartridges 173174 175 Cyan Magenta Yellow Black 176 Replacing the drum unit Replacing the drum unitChange Parts Drum message 177178 179 180 Cyan Magenta Yellow Black 181 182 Replacing the belt unit Replacing the belt unitChange Parts Belt Unit message 183184 185 186 187 Waste Toner Box Full message Replacing the waste toner boxChange Parts Waste Toner Box message Replacing the waste toner box189 190 191 192 193 Packing and shipping the machine 194Repacking the machine 196 197 198 199 200 201 Checking the page counters Machine informationChecking the serial number 202Checking the remaining life of parts 203Menu table Menu and featuresOn-screen Menu keys Programming Memory storageHow to access the menu mode 205Menu table 206207 208 Nnonn+Ring Delay 209210 Print Sample211 Every 50 Faxes212 Printer Emulation Auto213 Printer Duplex Off214 1in1Resolution Color 150 dpi 215216 Alphabetic217 TCP/IP218 LAN Wlan TCP/IP219 Ifax220 Mail221 InfoMaking corrections Entering textInserting spaces Repeating lettersSpecial characters and symbols 223General SpecificationsWeight Without Drum/Toner Unit 73.2 lb 33.3 kg 224Humidity TemperatureNoise level 225Duplex Print mediaPaper Input Paper Tray 226Fax Color/Monochrome Single-Sided Document Size CopyCopy Speed Copy Speed for Duplex Copying 228Scan Interfaces LAN cable Wireless LANPrint 230Direct print feature Interface231 Computer requirements Consumable items Support for Protocols Network type Management utilities Ethernet wired networkNetwork board model name 234Ethernet wireless network 235Encryption methods Authentication and encryption for wireless users onlyAuthentication method 236Wi-Fi Alliance certification Network key237 Glossary Menu mode ECM Error Correction ModeFine resolution Easy ReceiveRemote Retrieval Access Overseas ModeRemote Access Code Ring DelayUser Settings List Telephone Answer Code Fax/Tel mode onlyTemporary settings ToneIndex 242Telephone answer code Fax forwarding 243Fax/Tel mode Answering at extension 244245 Reports Fax Journal 246247 Equipment Attachment Limitations Visit us on the World Wide Web