Canon MF5750, MF5770 manual Troubleshooting

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Troubleshooting

QIs any toner left in the cartridge?

AReplace the cartridge with a new one. For more information, see Chapter 8, "Maintenance," in the User’s Guide.

ASelect <KEEP PRINTING> in <TONER SUPPLY LOW> in <RX SETTINGS> in <FAX SETTINGS> of the Menu. With this setting, the machine will not store documents in the memory even if the toner has run out. (See <7. TONER SUPPLY LOW> of "Menu Descriptions," on p. 8-6.)

QIs the correct paper loaded in the cassette?

AMake sure paper is loaded in the cassette. For more information, see Chapter 2, "Paper Handling," in the User’s Guide.

ALoad the correct paper size or change <PAPER SIZE> in <PAPER SETTINGS> of the Menu. For more information, see the following:

•Chapter 2, "Paper Handling," in the User’s Guide

•Chapter 5, "Copying," in the User’s Guide

Faxed images are blotched or uneven.

QAre the telephone lines in proper condition? Or do you have a good connection?

AECM (Error Correction Mode) for sending/receiving should eliminate such problems. However, if the telephone lines are in poor condition, you may have to try again. Then call the sender to resend the document.

QIs the sending fax machine functioning properly?

AThe sending fax machine usually determines the fax's quality. Call the sender and have them make sure the scanning glass of their fax machine is clean.

Cannot receive a fax using ECM (Error Correction Mode).

QDoes the sending fax machine support ECM?

AIf the sending fax machine does not support ECM, the document is received in the normal mode without error checking.

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Contents Facsimile Guide Manuals for the Machine Network Connectivity and Setup InstructionsCopyright Trademarks Contents Reports and Lists Chapter TroubleshootingMachine Settings Chapter Receiving FaxesMessages Displayed in the LCD How to Use This ManualSymbols Used in This Manual Keys Used in This ManualMF5770 IntroductionCustomer Support Operation PanelMF5750 Standby Display Fax Mode Date & time Receive modeRegistering Sender Information Registering Information in Your MachineEntering the Date and Time Registering Your Fax/Telephone Number and NamePress Menu Press or + to select Unit Name press OK Dialing Through a Switchboard Setting the Telephone Line TypeIf you selected Hooking Speed Dialing Speed Dialing MethodsRegistering One-Touch Speed Dialing Changing or Deleting an Entry Changing a Fax/Telephone Number You RegisteredChanging a Name You Registered Deleting an Entire Entry Registering Coded Speed DialingRegistering Group Dialing Deleting a Fax/Telephone Number from the Group Adding a Fax/Telephone Number to the GroupDeleting an Entire Group Touch List Printing Speed Dialing ListsMemory Sending Adjust any necessary settings for your documentSending Faxes Sending MethodsLoad the document in the ADF press FAX Manual SendingDial the recipients fax/telephone number Press StartImproving Faxed Images Adjusting the Image Quality Fax ResolutionAdjusting the Exposure Scan Density Press Exposure Press or + to adjust the density press OKOne-Touch Speed Dialing When the Fax/Telephone Number Is Registered in the MachineDialing Methods Regular DialingPress Directory Coded Speed DialingGroup Dialing Directory DialingAutomatic Redialing Customizing Automatic Redialing SettingsRedialing a Busy Number Manual RedialingEnter the fax/telephone numbers you want to send to If you selected onDialing an Overseas Number With Pauses Special DialingUse the numeric keys to dial the international access code Switching Temporarily to Tone DialingTone dialing is canceled when you disconnect the call Receiving Faxes Setting the Receive ModeReceiving Faxes Automatically FaxOnly Mode Select This Mode IfWhen You Receive a Voice Call When You Receive a Fax CallReceiving When an Answering Machine Is Connected AnsMode Receiving Faxes Manually Manual Mode Press to cancel receiving Receiving Faxes in the Memory When a Problem OccursCanceling Receiving Press Stop/Reset in the Fax modeReports and Lists Summary of Reports and ListsReport or List Description Details Transaction duration Error correction mode transactionPrinting the Activity Report Number of page being sent or receivedAdjusting the Activity Report Setting Adjusting the TX Report SettingError TX Report OK Reception successful Adjusting the RX Report SettingPrinting the User Data List LCD Messages TroubleshootingTroubleshooting Not Registered Error CodesTroubleshooting Sending Problems Faxing ProblemsTroubleshooting Troubleshooting Receiving Problems Troubleshooting Troubleshooting Telephone Problems If You Cannot Solve the Problem If a Power Cut OccursName Descriptions Machine SettingsAccessing the Machine Settings Menu DescriptionsMachine Settings OFF TX Settings RX Settings RX to Memory Standard ADD. Registration Specifications AppendixFacsimile Connection TelephoneDialing NetworkingNumerics IndexManual Mode Appendix Memo 230V