Brother HL-760 Series manual Replacing the Drum Unit, Drum Unit Nearly at the End of its Life

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USER’S GUIDE

REPLACING THE DRUM UNIT

The printer uses a drum unit to create the print images on paper. If the Drum lamp is on, it indicates the drum unit is nearly at the end of its life. We recommend you prepare a new drum unit to replace the current one. Even if the Drum lamp is on, you may be able to continue to print without replacing the drum unit for a while. If there is a noticeable deterioration in the output print quality even before the Drum lamp lights, then the drum unit should be replaced.

Drum

Alarm

Ready

Paper

Data

Toner

Fig. 5-9 Drum Unit Nearly at the End of its Life

!Caution

When removing the drum unit, handle carefully as it may contain toner.

You should clean the printer when you replace the drum unit. See “CLEANIN G THE PRINTER” in this chapter.

Note

The drum unit is a consumable, and it is necessary to replace it periodically. There are many factors that determine the actual drum life, such as temperature, humidity, type of paper and toner that you use, the number of pages per print job, etc.. The drum life is estimated at approximately 20,000 pages at 20 pages per job and 8,000 pages at 1 page per job. The actual number of pages that your drum will print may be significantly less than these estimates. Because we have no control over the many factors that determine the actual drum life, we cannot guarantee a minimum number of pages that will be printed by your drum.

For best performance, use only genuine Brother toner, and the product should only be used in a clean, dust-free environment with adequate ventilation.

CHAPTER 5 –6

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Contents Please read this manual thoroughly before using the printer Brother Laser PrinterShipment of the Printer Laser Printer HL-760 Series User’s Guide Trademarks Compilation and Publication NoticeDefinitions of Warnings, Cautions, and Notes To Use the Printer SafelyTable of Contents Index Regulations Industry Canada Compliance Statement For Canada OnlyInternational Energy Star Compliance Statement Laser Safety For 110-120 V Model Only Radio Interference 220-240 V Model OnlyFDA Regulations For 110-120 V Model Only IEC 825 Specification For 220-240 V Model Only Declaration of Conformity For EuropeImportant For Your Safety Geräuschemission / Acoustic Noise Emission For Germany OnlyImportant Wiring Information For U.K. only Finding Out How to Use the Printer About the GuidebooksAbout Your Printer Printer OverviewFeatures Dpi Resolution and 6 ppm Printing SpeedVersatile Paper Handling Remote Printer Console Program for DOS Popular Printer Emulation SupportOptional Apple Macintosh Interface Environment-Friendly Economy Printing Mode Sleep Mode Power Save ModeEnhanced Memory Management Low Running CostPower Supply Operating and Storage EnvironmentEnvironment Introduction Paper Specifications Paper Type Paper SizeRemarks Fan the Paper Straighten the PaperEnvelopes MULTI-PURPOSE Sheet Feeder Loading Paper into the Feeder Opening the Feeder Loading Paper or Envelopes in the FeederPaper Jams in Chapter Two Side Printing Manual Duplexing When you load one sheet of paper manually When you load more than one sheet of paper manuallyManual Feed Slot Paper Handling Output Tray and Paper Support Wire Opening the Output Tray Extending the Extension Support WireLamps and Switch Ready Paper LampAlarm Lamp Data Toner LampDrum Lamp Other Control Features SwitchSleep Mode Test Print Mode Lamp Lit Choice FunctionControl Features Set by the Brother Printer Driver ProtectionSerial Interface Board RS-100M Selecting the RS-422A Apple or RS-232C IBM Serial InterfaceSetting the Serial Interface Parameters Selecting the RS-422A Apple Or RS-232C IBM Serial InterfaceBits BitDTR only OffConnecting the Serial Interface Cable NoneOptions Additional Memory Minimum Memory Recommendation including resident memoryInstalling the Simm Unplug the Power Cord Disconnect the Interface CableRemoving the Main Controller Board Chapter Maintenance Replacing the Toner CartridgeRemoving the Drum Unit Turning the Lever to Close the Shutter Removing the Old Toner Cartridge Installing the Toner Cartridge Into the Drum Unit Replacing the Drum Unit Drum Unit Nearly at the End of its Life10 Removing the Drum Unit ∙ Do not remove the starter sheet 12 Removing the Toner Cartridge15 Installing the Drum Unit Adjusting the Print Density 17 Adjusting the Print Density DialCleaning the Printer Cleaning the Printer ExteriorCleaning the Printer Interior and Drum Unit 20 Turning off the Switch and UnpluggingGently wipe the scanner window with a soft dry cloth 23 Cleaning the Primary Corona Wire 24 Removing the Drum Unit Assembly RE-PACKING the Printer25 Placing the Drum Unit in the Plastic Bag Alarm Indications AT a Glance Blinking Lamp Error ActionOperator Calls Error Action Troubleshooting Service Calls Paper Jams Locating Paper Jam PositionDo Not Pull the Jammed Paper from the Output Tray Paper Jam near the Drum Unit Setting Up the Printer Hardware Setting Up the Printer for WindowsQuestion Recommendation Setting Up the Printer for DOS QuestionPaper Handling Printing Serial Inter Face Board RS100MPrint Quality White Stripes or Faint ImagesToner scatters and stains the printed Printed pages are blurred at the center or either edge Printer Specifications Appendix aFunctions Electrical and Mechanical Parallel Interface Specifications Data StrobeFig. A-1 Parallel Interface Cable Resident Fonts Bitmapped FontsScalable Fonts Intellifont Compatible FontsSymbol SETS/CHARACTER Sets OCR Symbol SetsHP LaserJet 5P Mode Epson ModeIndex Slide switch