Samsung SF-650 manual Toner smear, Defects, Background scatter, Misformed, Characters

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	CONDITION	SUGGESTED SOLUTIONS

Black background		If the amount of background shading becomes unacceptable:
		• Change to a lighter weight paper (See "Print media specifications" on page71).
		• Check the environmental conditions: very dry conditions or a high level of humidity (higher
		than 80% RH) can increase the amount of background shading.
		• Remove the old toner cartridge and, install a new one (See "Replacing the toner cartridge"
		on page68).

Toner smear		If toner smears on the page:
		• Clean the inside of the machine (See "Cleaning the inside" on page48).
		•	Check the paper type and quality (See "Print media specifications" on page71).
		•	Remove the toner cartridge and then, install a new one (See "Replacing the toner
			cartridge" on page68).

Vertical repetitive				If marks repeatedly appear on the printed side of the page at even intervals:
defects				• The toner cartridge may be damaged. If you still have the same problem, remove the
				toner cartridge and, install a new one (See "Replacing the toner cartridge" on page68).
				• Parts of the machine may have toner on them. If the defects occur on the back of the
				page, the problem will likely correct itself after a few more pages.
				• The fusing assembly may be damaged. Contact a service representative.

Background scatter					Background scatter results from bits of toner randomly distributed on the printed page.
					• The paper may be too damp. Try printing with a different batch of paper. Do not open
		A			packages of paper until necessary so that the paper does not absorb too much moisture.
		A

Misformed					• If characters are improperly formed and producing hollow images, the paper stock may be
characters					too slick. Try different paper (See "Print media specifications" on page71).

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Contents Page Copyright CopyrightUsing toner saving feature Using power saving feature ContentdsContentds Resolution Darkness CopyingCleaning the drum Checking display messagesSafety information Important safety symbolsSafety information Operating environmentOperating method Installation / Moving Maintenance / CheckingSupply usage Laser Safety Statement Ozone SafetyRegulatory information Regulatory informationCorrect disposal of batteries in this product RecyclingTaiwan only Radio Frequency Emissions Russia onlyGermany only Fax Branding FCC Information to the UserReplacing the Fitted Plug for UK Only Ringer Equivalence NumberYou should also know that Declaration of Conformity European Countries Important warningApprovals and Certifications EC CertificationChina only About this user’s guide ConventionAbout this user’s guide Conventio Description ExampleQuick Install Guide Finding more informationMaterial Name Description Instructions in the guide to prepare the machineSpecial Features Features of your new productFeatures of your new product Introduction Machine overviewFront view IntroductionRear view Control panel overview Power LED Understanding the Status LEDIntroducing the useful button Turning on the machineSetting up the hardware Basic setupBasic setup Setting the date and time Changing the clock modeSetting sounds Changing the display languageEntering characters using the number keypad Entering alphanumeric charactersKeypad letters and numbers Correcting numbers or namesUsing the save modes Setting the paperMedia and tray Preparing originalsLoading originals Document feederSelecting print media Guidelines to select the print mediaMedia sizes supported in each mode Mode Size SourceCopy mode Fax modeLoading paper in the tray TraySetting the paper size and type Using the output supportLetterhead/ Preprinted paper SINGLE-SIDED DOUBLE-SIDEDCopying Changing the settings for each copyBasic copy Setting copy timeout Changing the default copy settingsTo scale the copy by directly entering the scale rate Setting the fax header FaxingPreparing to fax Sending a faxDelaying a fax transmission Sending a fax manuallyConfirming a transmission Automatic redialingAdding documents to a reserved delay fax job Canceling a reserved delay fax jobSending a priority fax Sending a fax in toll save timeReceiving manually in Tel mode Receiving automatically in Answering Machine/Fax modeReceiving faxes manually using an extension telephone Receiving a faxReceiving faxes using Drpd mode Receiving in secure receiving modeActivating secure receiving mode Deactivating secure receiving modeAdjusting the document settings Forwarding a fax to other destinationSetting up address book Using group dial numbers Group dial numbersRegistering a group dial number Editing a group dial numberPrinting sent fax report automatically Machine status and advanced feature Fax setupChanging the fax setup options Available fax setup optionsUsing the advanced fax settings Advanced fax setting optionsCopy setup Changing the copy setup optionsChange Default Printing a reportClear All Mem Menu overview Items OptionMachine status and advanced feature Maintenance Cleaning a machineCleaning the outside Cleaning the insideCleaning the scan unit Maintenance Cleaning the drum Storing the Toner cartridgeHandling instructions Use of non-Samsung and refilled toner cartridgeTips for moving & storing your machine Troubleshooting TroubleshootingRedistributing toner Clearing original document jams Input MisfeedExit Misfeed Tips for avoiding paper curlsPressure lever Tips for avoiding paper jams Clearing paper jamsInside the machine Exit areaIf you do not see the jammed paper, go to next step Understanding display messages Message Meaning Suggested SolutionsChecking display messages Power Failure Operation Not Assigned Paper JamSolving other problems Paper feeding problemsPrinting problems Printing quality problemsLight or faded print Toner specksDropouts White SpotsToner smear DefectsBackground scatter MisformedCondition SkewCopying problems Condition Suggested SolutionFax problems Supplies and accessories How to purchaseAvailable maintenance parts Supplies and accessoriesReplacing the toner cartridge PartsSupplies and accessories Specifications Hardware specificationsEnvironmental specifications Electrical specificationsType Size Dimensions Print media specificationsTRAY1 Contact Samsung worldwide Contact Samsung worldwideCOUNTRY/REGION Customer Care Center WEB Site Luxemburg Glossary Default Dot Matrix PrinterDuplex Duty CycleEthernet EtherTalkFuser Unit GatewayITU-T No chart MAC addressModem NetWareOriginals PostScriptProtocol PRN fileSubnet Mask UNC Path Toner CartridgeWatermark Index Toner save mode 25 tray Time setting 23 toner cartridgeTurning on the machine Index