Canon printer imageCLASS MF236n User Manual
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YoucannotprintwithGoogleCloudPrint.UsingGoogleCloudPrint(P.308) Ittakesalongtimebeforeprintingstarts. Did you print to narrow width paper? After you print to narrow width paper, the machine may cool itself to maintain the print quality. As a result, it may take some time before the next job is printed. Wait until the machine is ready to print. Printing will resume when the temperature inside the machine has fallen. Ablanksheetisoutput(nothingisprinted). Did you pull the sealing tape out when loading the toner cartridge? If you did not pull it out, remove the toner cartridge, pull the sealing tape out, and reload the toner cartridge. HowtoReplaceTonerCartridges(P.604) Troubleshooting 573
Faxing/TelephoneProblems 1469-09H See CommonProblems(P.566) also. SendingProblems(P.574) ReceivingProblems(P.575) Sending Problems Afaxcannotbesent. Is an external phone line busy? Wait until the line becomes free. Has an error occurred? Print and check a Communication Management Report. CommunicationManagementReport(P.613) Is a telephone line set correctly? ConnectingtheTelephoneLine(P.112) When sending the fax overseas, insert pauses in the fax number. SendingFaxes(P.114) Afaxcannotbesentwithadestinationinthehistory specL4ed. Did you turn OFF the machine? If so, the stored history was deleted. Did you set to ? If so, the history before you set was deleted. Did you set to ? If so, the destinations in the history cannot be speci4ed. Afaxcannotbesentonanoptical4berline. The machine is compliant with use on analog lines. When using an optical 4ber line or IP phone line, the machine may not work correctly depending on the connection environment or connected devices. In such a case, contact the provider of the optical 4ber line or IP phone. Theresultsofasentfaxarenotsatisfactory. Clean the platen glass or feeder. If cleaning does not improve the results, the recipient's fax machine may be a cause. PlatenGlass(P.592) Feeder(P.595) Troubleshooting 574
Receiving Problems Theresultsofreceivedfaxarenotsatisfactory.Papercreasesorcurls.When YouCannotPrintProperly(P.576) Telephoneandfaxcannotbeswitchedautomatically. Check that the receive mode is set to , , or . SelectingtheReceiveMode(P.110) Free space in memory may be running low. Print or delete data in memory. Checking/DeletingDocumentsinMemory(P.151) PrintingDocumentsinMemory(P.151) Afaxcannotbereceivedautomatically. Check that the receive mode is set to , , , or . SelectingtheReceiveMode(P.110) Free space in memory may be running low. Print or delete data in memory. Checking/DeletingDocumentsinMemory(P.151) PrintingDocumentsinMemory(P.151) Afaxcannotbereceivedonanoptical 4berline. The machine is compliant with use on analog lines. When using an optical 4ber line or IP phone line, the machine may not work correctly depending on the connection environment or connected devices. In such a case, contact the provider of the optical 4ber line or IP phone. Troubleshooting 575
WhenYouCannotPrintProperly 1469-09J If printing results are not satisfactory, or paper creases or curls, try the following solutions. If the problems persist, contact your local authorized Canon dealer or the Canon help line. SmudgeMarksAppearonthe EdgeofPrintouts(P.578)StreaksAppearon Printouts(P.578)WhiteStreaksAppear(P.579)TonerSmudgesandSplatters Appear(P.579)PrintoutsAreFaded(P.580)PrintedPagesHaveWhite Specks(P.580)APortionofthePageIsNot Printed(P.581)PrintDensityIsUneven(P.581)PrintoutsAreGrayish(P.582) Troubleshooting 576
CannotScanaPrinted Barcode(P.582)PaperCreases(P.583)PaperCurls(P.583) PrintoutsAreSkewed(P.585) PrintoutsAreSkewed(P.585)PaperIsNotFed/TwoorMore SheetsAreFedTogether(P.585)PaperJamsFrequentlywith2- SidedPrinting(MF249dw/ MF247dw)(P.586) Troubleshooting 577
PrintingResultsAreNotSatisfactory 1469-09K Dirt inside the machine may affect printing results. Perform care and cleaning to the machine 4rst. CleaningtheMachine(P.590) Smudge Marks Appear on the Edge of Printouts Doyouprintdatawithoutmargins? This symptom occurs if a margin is set to none in the printer driver. A margin of 1/4" (5 mm) or less around the edge of paper or 3/8" (10 mm) or less around the edge of envelopes is not printable with themachine. Make sure to have margins around the document to print. [Finishing] tab [Advanced Settings] [Expand Print Region and Print] [Off] Streaks Appear on Printouts Areyouusingappropriatepaper? Check usable paper, and replace with appropriate paper. Paper(P.650) LoadingPaper(P.45) If using the appropriate paper still does not solve the problem, change one of the , , and settings. SpecialProcessing(P.525) To print from a computer, change the setting for [Special Print Adjustment] in the printer driver. [Mode 1] has the least effect while [Mode 4] has the most effect. Try each in order starting with [Mode 1]. Increasing the effect makes the print density lighter. Outlines may also be blurred or images may appear somewhat grainy. Troubleshooting 578
Didyoujustreplacethetonercartridge?Haveyounotusedtheprinterfora longperiodoftime? Change the setting for . SpecialProcessing(P.525) White Streaks Appear Istheplatenglassdirty? Clean the platen glass and the underside of the feeder. PlatenGlass(P.592) Istheamountremaininginthetonercartridgenearlyempty? Check the amount remaining in the toner cartridge, and replace the toner cartridges as necessary. ReplacingTonerCartridges(P.599) Toner Smudges and Splatters Appear Areyouusingappropriatepaper? Check usable paper, and replace with appropriate paper. Paper(P.650) LoadingPaper(P.45) Change the setting for . SpecialProcessing(P.525) Istheamountremaininginthetonercartridgenearlyempty? Check the amount remaining in the toner cartridge, and replace the toner cartridges as necessary. Troubleshooting 579
ReplacingTonerCartridges(P.599) Printouts Are Faded Istheamountremaininginthetonercartridgenearlyempty? Check the amount remaining in the toner cartridge, and replace the toner cartridges as necessary. ReplacingTonerCartridges(P.599) Areyouusingappropriatepaper? Check usable paper, and replace with appropriate paper. Also, specify the paper size and type settings properly. Paper(P.650) LoadingPaper(P.45) SpecifyingPaperSizeandType(P.56) Areyouusingthemachineinaspecialenvironment(inparticular,alow- temperatureenvironment)? Toner may not adhere adequately, causing printouts to appear faded. Change the setting for . SpecialProcessing(P.525) Printed Pages Have White Specks Areyouusingappropriatepaper? Check usable paper, and replace with appropriate paper. Paper(P.650) LoadingPaper(P.45) Troubleshooting 580
Isthedruminthetonercartridgedeteriorated? Replace the toner cartridge with a new one. ReplacingTonerCartridges(P.599) Areyouprintingadocumentwithstrongcontrasts? Change the setting for [Special Print Mode] using the Printer Driver. When set to [Special Settings 2], print density is lighter compared with [Off] or [Special Settings 1]. Text and lines may also appear faded. A Portion of the Page Is Not Printed Doyouprintdatawithoutmargins? This symptom occurs if a margin is set to none in the printer driver. A margin of 1/4" (5 mm) or less around the edge of paper or 3/8" (10 mm) or less around the edge of envelopes is not printable with the machine. Make sure to have margins around the document to print. [Finishing] tab [Advanced Settings] [Expand Print Region and Print] [Off] Print Density Is Uneven Istheamountremaininginthetonercartridgenearlyempty? Check the amount remaining in the toner cartridge, and replace the toner cartridges as necessary. ReplacingTonerCartridges(P.599) Isprintingsometimesunevenwhenprinting 4nelines? Change the setting for . Troubleshooting 581
SpecialProcessing(P.525) Printouts Are Grayish Isinsettoodark? Adjust the setting so that density is lighter. CorrectDensity(P.497) Istheprinterinstalledwhereitissubjecttodirectsunlightorstronglight? Install the printer in an appropriate location. Installation(P.3) RelocatingtheMachine(P.607) Wasthetonercartridgebeenleftindirectsunlightforalongperiodoftime? Store the toner cartridge in an appropriate location for two to three hours, then try printing again. This may solve the problem. If the problem persists, replace the toner cartridge. ReplacingTonerCartridges(P.599) Cannot Scan a Printed Barcode Areyoutryingtoscanabarcodeprintedwithfactorydefaultsettings? In the printer driver, specify [Special Settings 1] for the setting of [Special Print Mode]. When set to [Special Settings 1], print density is lighter compared with [Off]. Text and lines may also appear faded. White specks may appear in images when this feature is used with paper other than lightweight paper. Troubleshooting 582