HP LaserJet 5000gn User Manual

Copyright© 1998Hewlett-Packard Co.Printed in USAManual Part No.C4110-91033*C4110-91033**C4110-91033*C4110-91033HP LaserJet 5000, 5000 N and 5000 GN Pr

ENOverview 1-1 1Printer DescriptionOverview This chapter discusses the following:●Printer Features●Identification●Site Requirements●Paper Specificatio

ENPower Supply System 5-9 Paper Motion Monitoring and Control The DC Controller Board controls paper motion by continuously monitoring the various pap

5-10 Functional InformationENMotorsSee “Timing Diagram” on page 5-47 for specific timing details for the printer motors.The Main Motor, MT1, is contr

ENPower Supply System 5-11 The Scanner Motor is controlled and monitored by the DC Controller Board. It rotates the scanner mirror during the Initial

5-12 Functional InformationEN Formatter SystemThe Formatter PCA is responsible for the following:●Controlling the PowerSave mode.●Receiving and proce

ENFormatter System 5-13 The printer exits PowerSave mode and enters the warm up cycle when any of the following occurs:●A print job, valid data, or a

5-14 Functional InformationENInput/OutputParallel InterfaceThe Formatter PCA receives incoming data through its bidirectional interface (IEEE 1284).

ENFormatter System 5-15 Printer MemoryNoteIf the printer encounters difficulty managing available memory, a clearable warning message will be displaye

5-16 Functional InformationENDIMM Slots The DIMM slots may be used to add memory, fonts, or firmware upgrades. Note that DIMMs and SIMMS are not com

ENFormatter System 5-17 PJL OverviewPrinter Job Language (PJL) is an integral part of configuration, in addition to the standard Printer Command Langu

5-18 Functional InformationENImage Formation SystemThe image formation system is the main part of the printer, and consists of six stages:When the Fo

1-2 Printer DescriptionENPrinter FeaturesTable 1-1. Printer FeaturesSpeed 17 pages per minute (ppm), A4 paper or 16 ppm, letter paper100 MHz RISC mic

ENImage Formation System 5-19 Figure 5-6Image Formation SystemAfter the image has been transferred to the paper, it is then fused onto the paper by he

5-20 Functional InformationENToner CartridgeA major portion of the Image Formation system is contained in the cartridge as shown in the figure below.

ENImage Formation System 5-21 Photosensitive DrumThe special properties of the photosensitive drum allow an image to be formed on the drum surface and

5-22 Functional InformationENCleaning the DrumIn the transfer stage, not all the toner is transferred to the paper, but some remains on the photosens

ENImage Formation System 5-23 Conditioning the DrumAfter the drum is cleaned, it must be conditioned. This process consists of applying a uniform nega

5-24 Functional InformationENWriting the ImageDuring the writing process, a modulated laser diode projects the beam onto the rotating six-sided scann

ENImage Formation System 5-25 Developing the ImageThe developing process develops the latent electrostatic image into a visible image on the drum. The

5-26 Functional InformationENTransferring the ImageDuring the transferring process the toner image on the drum surface is transferred to the paper. A

ENImage Formation System 5-27 Image Fusing/Variable Fusing TemperatureDuring the fusing process, the toner is fused into the paper by heat and pressur

5-28 Functional InformationENVariable Fusing TemperatureFigure 5-15 Fusing Temperature ControlVariable Fusing Temperature is a feature that gives the

ENPrinter Features 1-3 Paper Trays 100-sheet Tray 1Size: 3 by 5 in (76 by127 mm) to 12.28 by 18.5 in (312 by 470 mm)Optional 250-sheet Tray 2 supports

ENPaper Feed System 5-29 Paper Feed SystemFigure 5-16Paper PathThe paper in Tray 1 is detected by the Tray 1 paper sensor (PS401). The paper in Tray 2

5-30 Functional InformationENThe paper passes through the registration roller paper sensor (PS403) and stops at the registration roller to loop the l

ENPaper Feed System 5-31 Printing from Tray 1The presence of paper in Tray 1 is detected by the Tray 1 Paper Sensor (PS401).When the Formatter PCA sen

5-32 Functional InformationENFigure 5-17 Tray 1 Pickup

ENPaper Feed System 5-33 Printing from Tray 2When the Formatter PCA sends the /PRNT (print signal) to the printer, the CPU turns the Tray 2 pickup sol

5-34 Functional InformationENFigure 5-19 Paper Skew Loop-forming

ENPaper Feed System 5-35 Printing from the Optional 500-sheet and 250-sheet TraysThere are two kinds of paper feeders: 250-sheet and 500-sheet. The pa

5-36 Functional InformationENFigure 5-21 500-sheet Paper Feeder

ENPaper Feed System 5-37 Paper JamTo detect the presence of paper and whether the paper has been correctly fed, the following paper sensors are instal

5-38 Functional InformationENDuplexerThis function is to reverse the one side printed paper from the printer and refeed it into the printer.The Duple

1-4 Printer DescriptionEN1. 4 MB internal, with remainder in DIMMTable 1-2. Comparison of HP LaserJet 5000 Series PrintersHP LaserJet 5000HP LaserJet

ENPaper Feed System 5-39 Figure 5-22Paper Feed for the Duplexer

5-40 Functional InformationENReversing SystemThe duplexing driver PCA receives the duplex admission command from the printer first. It turns on the D

ENPaper Feed System 5-41 Figure 5-24Duplexing Unit

5-42 Functional InformationENUncurling FunctionThis printer has the function to minimize a paper from wrinkle and paper edge crease due to curl.The p

ENPaper Feed System 5-43 Figure 5-25Pause ModeDance ModeDance mode reduces paper curl by refeeding paper into the duplexing unit three times. The pape

5-44 Functional InformationENFigure 5-26 Dance ModePaper Jam in the DuplexerThe following sensors are located to detect the presence of paper and to

ENBasic Sequence of Operation 5-45 Basic Sequence of OperationThe Formatter PCA and the DC Controller Board share information during printer operation

5-46 Functional InformationENLSTR (last rotations)After the primary DC voltage turns off until the Main Motor stops.Delivers the final page and clean

ENBasic Sequence of Operation 5-47 Figure 5-27Timing Diagram

5-48 Functional InformationEN

ENIdentification 1-5 IdentificationModel and Serial NumbersThe model number and serial numbers are listed on identification labels located on the rear

ENOverview 6-1 6Removing and Replacing PartsOverview This chapter discusses the following:●User Installable Accessories●Removal and Replacement Strate

6-2 Removing and Replacing PartsENUser Installable AccessoriesMemory UpgradeCAUTIONStatic electricity can damage dual in-line memory modules (DIMMs).

ENUser Installable Accessories 6-3 6Slide the formatter board back into the printer and tighten the two screws.7If an optional duplexer is installed,

6-4 Removing and Replacing PartsENIf an optional duplexer is installed:1 Slide the rear section of the duplexer away from the printer.2 Remove the re

ENUser Installable Accessories 6-5 Checking Memory InstallationFollow this procedure to verify that DIMMs are installed correctly:1Check that the prin

6-6 Removing and Replacing PartsENFigure 6-1 Installing EIO Cards or Mass Storage Devices

ENRemoval and Replacement Strategy 6-7 Removal and Replacement StrategyThis chapter documents removal and replacement of major assemblies.Replacement

6-8 Removing and Replacing PartsENFigure 6-2 Phillips vs. Posidriv ScrewdriversPhillips PosidrivTable 6-1. Screws Used in the PrinterDrawing and Desc

ENRemoval and Replacement Strategy 6-9 Threaded Phillips screw with lock and flat washerUsed to fasten metal or plastic to threaded plastic or metal.S

6-10 Removing and Replacing PartsENRemoving CoversRear Door / Rear Output Bin1 Face the rear of the printer. Press the two locking tabs toward the ce

1-6 Printer DescriptionENSite RequirementsThe following environmental specifications must be maintained to ensure the proper operation of the printer

ENRemoving Covers 6-11 2The plastic support strap is located on the left side of the printer. To release the strap, pinch the top of the strap with yo

6-12 Removing and Replacing PartsENTop CoverFacing the front of the printer, open the Top Cover and remove the Toner Cartridge.CAUTION To prevent dam

ENRemoving Covers 6-13 CAUTIONIt is critical that step 1 be performed before you attempt to remove the Top Cover. If you damage the Arm, the printer w

6-14 Removing and Replacing PartsEN4 The cable connecting the Control Panel to the printer chassis is on the left side of the Top Cover. Tilt the cov

ENRemoving Covers 6-15 Control Panel Overlay and Control Panel1Remove the Top Cover (page 6-12).2The Control Panel Overlay is held in place on the Top

6-16 Removing and Replacing PartsENFigure 6-8 Back Side of Top CoverItem ExplanationADirection to slide control panel outBScrew

ENRemoving Covers 6-17 Toner Cartridge Door Assembly1Remove the Top Cover (page 6-12).2Remove the Control Panel from the Top Cover (page 6-15). (The C

6-18 Removing and Replacing PartsENFront Cover and Tray 1Front Cover and Tray 1 must be removed individually. See Figure 6-10.1 Open the Front Cover

ENRemoving Covers 6-19 Figure 6-11Tray 1 4Release the Tray 1 Guide by allowing the guide to slide off the keyed pins at its lowest position (Figure 6-

6-20 Removing and Replacing PartsENFront Cover Pins1 Remove the Front Cover and Tray 1 (page 6-18).2 Remove the screws (A) to free the Front Cover Pi

ENSite Requirements 1-7 Space RequirementsFigure 1-2Printer Dimensions, HP LaserJet 500011.9 in (30.3 cm)24.6 in (62.5 cm)18.5 in (47.0 cm)10.6 in (27

ENRemoving Covers 6-21 Face Down Assembly1Remove the Top Cover (page 6-12).2Face the back of the printer.3Squeeze the locking tabs inward, one side at

6-22 Removing and Replacing PartsENFigure 6-14 Face Down AssemblyItem ExplanationALocator Pins

ENRemoving Covers 6-23 Left and Right Side CoversThe removal procedure is the same for both the left and the right side covers. See Figure 6-15.1Remov

6-24 Removing and Replacing PartsENTray 1 Inner Cover 1 Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), and Front Cover an

ENRemoving Covers 6-25 Figure 6-17Tray 1 Inner Cover (front of printer)HintAn extension of the Paper Sensor Flag fits into a slot in the Tray 1 Lift P

6-26 Removing and Replacing PartsENRight and Left Corner CoversThese covers are each secured by one self-tapping screw. Remove the screw, and lift of

ENRemoving Assemblies 6-27 Removing AssembliesInternal assemblies are shown in Figure 6-19. All references to the right and left are assumed to be rel

6-28 Removing and Replacing PartsENTransfer Roller AssemblyCAUTION Never touch the transfer roller with your fingers. Use unpowdered latex gloves if

ENRemoving Assemblies 6-29 Figure 6-21Right Side of Transfer Roller NoteThe Transfer Roller is held on the right side by a hinged clip.2Free the Trans

6-30 Removing and Replacing PartsENFuser1 Remove the Rear Door and Rear output bin (page 6-10).2 Facing the back of the printer, remove the two machi

1-8 Printer DescriptionENFigure 1-3 Printer Dimensions, HP LaserJet 5000 N/5000 GN24.6 in (62.5 cm)6.1 in (15.5 cm)24.4 in (62.0 cm)18.5 in (47.0 cm)

ENRemoving Assemblies 6-31 Paper Handling PCA1Remove the Top Cover (page 6-12) and Left Side Cover (page 6-23).2Facing the left side of the printer, d

6-32 Removing and Replacing PartsENTop Margin AdjustmentWhen the terminal PCA is replaced in the field, the top margin needs to be re-adjusted. Also,

ENRemoving Assemblies 6-33 Figure 6-25Location of VR401

6-34 Removing and Replacing PartsENMain Gear Assembly1 Remove the Top Cover (page 6-12) and the Left Cover(page 6-23).2 The Main Motor is located on

ENRemoving Assemblies 6-35 Figure 6-27Removing the Main Gear Assembly4Rotate the bottom of the assembly out (Figure 6-27), and then lower it to releas

6-36 Removing and Replacing PartsENPickup Gear Assembly1 Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), and the Paper Handling PCA (p

ENRemoving Assemblies 6-37 HintBefore replacing the Pickup Gear Assembly, route the cables through the wire clip behind the Left Corner Cover. Reattac

6-38 Removing and Replacing PartsENTray 1 Pickup Solenoid1 Remove the Pickup Gear Assembly (page 6-36).2 Remove the Tray 1 Solenoid by removing one b

ENRemoving Assemblies 6-39 Fan1Remove the Top Cover (page 6-12) and Right Side Cover(page 6-23).2Disconnect the cable that supplies power to the fan.3

6-40 Removing and Replacing PartsENFormatter Assembly1 Print a Configuration Page, if possible, to use as a reference when reinstalling the new forma

ENSite Requirements 1-9 Figure 1-4Printer Dimensions, HP LaserJet 5000 with AccessoriesPrinter Weight (without toner cartridge)●HP LaserJet 5000 print

ENRemoving Assemblies 6-41 Tray 1 Roller1Open the Top Cover and remove the Toner Cartridge.2Facing the front of the printer, raise the green center ha

6-42 Removing and Replacing PartsENTray 2 Roller1 Remove the Paper Tray, and tilt the printer backwards, with the front of the printer facing up.2 De

ENRemoving Assemblies 6-43 Paper Feed Roller Assembly1Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), Main Gear Assembly (page 6-34), P

6-44 Removing and Replacing PartsEN3 Remove the two machine screws in the center of the printer, under the Registration Assembly Roller Guide. See Fi

ENRemoving Assemblies 6-45 Figure 6-36Paper Feed Roller Assembly (bottom view of printer)6Remove the Paper Feed Roller Assembly from the chassis, whil

6-46 Removing and Replacing PartsENDC Controller Board and Power Supply This assembly contains two PCAs. One houses the DC Controller and the High-V

ENRemoving Assemblies 6-47 Figure 6-37DC Controller Assembly (rear view of printer)Item ExplanationAMachine ScrewsBSelf-tapping ScrewsCLock Washer/Gro

6-48 Removing and Replacing PartsENFigure 6-38 DC Controller Assembly (long screws)5 Remove the two screws (A) (Figure 6-38) located at the back of t

ENRemoving Assemblies 6-49 8The boards are linked by a ribbon cable and held onto the tray with four screws each. Carefully remove the ribbon cable th

6-50 Removing and Replacing PartsENPaper Feed Belt Assembly1 Remove the Top Cover (page 6-12), Left Cover (page 6-23), and Main Gear Assembly (page 6

1-10 Printer DescriptionENEnvironmental Requirements Table 1-4. Printer and Toner Cartridge Environmental ConditionsItem Operating StorageTemperature

ENRemoving Assemblies 6-51 Figure 6-41Paper Feed Belt Assembly (removed)NoteTo prevent damage to the high voltage contacts, the Feed Belt Assembly MUS

6-52 Removing and Replacing PartsENTray 1 Shaft1 Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), Pickup Gear Assembly (page

ENRemoving Assemblies 6-53 5Release the tabs of the gear on the left side of the shaft, outside the chassis, and slide the gear off.6Slide the shaft t

6-54 Removing and Replacing PartsENTray 2 Shaft1 Remove the Top Cover (page 6-12), Left and Right Side Covers (page 6-23), Pickup Gear Assembly (page

ENRemoving Assemblies 6-55 Reassembly Steps:1Tip the printer back, so that the front faces up. 2Insert the shaft into the fitting on the right side. T

6-56 Removing and Replacing PartsENTray 1 Lift Plate1 Remove the Front Cover (page 6-18), Tray 1 Shaft (page 6-52), Top Cover (page 6-12), Left and R

ENRemoving Assemblies 6-57 Tray 1 Separation Pad1Rotate the Separation Pad 90o toward you, so that it is oriented up. 2Lift the assembly out of the sl

6-58 Removing and Replacing PartsENPaper Guide1 Lift the green handle in the middle of the Registration Assembly.2 Release the Guide by freeing the e

ENRemoving Assemblies 6-59 Paper Path Detect Sensor1Remove the Paper Tray. Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), Pickup Gear

6-60 Removing and Replacing PartsENFace Down Bin Full Sensor1 Remove the Top Cover (page 6-12), Rear Door/Rear Output Bin (page 6-10), and Left and R

HP LaserJet 5000, 5000 N, and 5000 GN PrintersService Manual _____________

ENPaper Specifications 1-11 Paper SpecificationsThe following tables show paper specifications for the printer.1. The printer supports a wide range of

ENRemoving Assemblies 6-61 Figure 6-50Detail of Bin Full SensorItem ExplanationAClips

6-62 Removing and Replacing PartsENPower Connection1 Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), and Rear Door / Rear Output Bin (

ENRemoving Assemblies 6-63 Registration Assembly1Remove the Top Cover (page 6-12), Left Side Cover (page 6-23), Pickup Gear Assembly (page 6-36), and

6-64 Removing and Replacing PartsENFigure 6-53 Registration Assembly ClutchHint When reinstalling the clutch, orient the shaft with the flat spot up.

ENRemoving Assemblies 6-65 Upper Delivery Assembly1Remove the Top Cover (page 6-12), Rear Door/Rear Output Bin (page 6-10), and Left and Right Side Co

6-66 Removing and Replacing PartsENFigure 6-55 Upper Delivery Assembly Tabs3 The Face Down Bin Full Sensor is on the left side of the Upper Delivery

ENRemoving Assemblies 6-67 Delivery Roller Removal1Remove the Top Cover (page 6-12) the Left and Right Side Covers (page 6-23), Rear door/Rear Output

6-68 Removing and Replacing PartsENFigure 6-57 Right Delivery Roller Tab5 The Lower Delivery Rollers may fall out. When you replace them, make sure t

ENRemoving Assemblies 6-69 Laser Scanner Assembly1Remove the Top Cover (page 6-12) and the Face Down Assembly Base (page 6-21). 2Facing the back of th

6-70 Removing and Replacing PartsENMain Motor1 Remove the Main Gear Assembly (page 6-34).2 Remove the three screws securing the motor to the back of

1-12 Printer DescriptionEN1. The printer supports a wide range of media sizes. Check the printer softwarefor supported sizes. 2. Capacity may vary de

ENRemoving Assemblies 6-71 Toner Cartridge Guides1Remove the Top Cover (page 6-12) and Left and Right Side Covers (page 6-23).2Release the “leading” t

6-72 Removing and Replacing PartsENPower Inlet Assembly1 Remove the Top Cover (page 6-12) and the Right Side Cover (page 6-23).2 Remove the Switch Ro

ENOptional 500-sheet Tray Disassembly 6-73 Optional 500-sheet Tray Disassembly1Using a flathead screwdriver, release the locking tabs by pressing down

6-74 Removing and Replacing PartsENFigure 6-63 500-sheet Tray (top view with covers removed)3 Remove the nine self-tapping screws.A Self-tapping scre

ENOptional 500-sheet Tray Disassembly 6-75 Tray Indicator Assembly1Remove the left front corner cover screw.2Remove the cover.3Remove the Tray Indicat

6-76 Removing and Replacing PartsENLeft Front Corner Cover Installation1 Install the Tray Indicator Assembly.2 Depress the indicator to ensure the Tr

ENOptional 500-sheet Tray Disassembly 6-77 Paper Size Spring Assembly1Remove the Paper Size Spring Assembly by disengaging the locking tabs from the l

6-78 Removing and Replacing PartsEND-Roller and Feed Roller Feed Roller Removal1 Pinch the Feed Roller Tab and slide it off of the shaft.D-Roller Rem

ENOptional 500-sheet Tray Disassembly 6-79 Gear Assembly and PCA 1Remove the Gear Assembly by removing the six small self-tapping screws.2Remove the 5

6-80 Removing and Replacing PartsENPower Connector 1 Remove the Power Connector by removing the two screws (A).Figure 6-69 Removing the Power Connect

ENPaper Specifications 1-13 1. The printer supports a wide range of media sizes. Check the printer softwarefor supported sizes. 2. Capacity may vary d

ENOptional 500-sheet Tray Disassembly 6-81 Separation Roller 1Lift the Return Cover.2Pinch the Separation Roller Tab.3Slide the Separation Roller off

6-82 Removing and Replacing PartsEN

ENOverview 7-1 7TroubleshootingOverview This chapter discusses the following:●Troubleshooting Process●Troubleshooting the Printing System●General Trou

7-2 TroubleshootingENTroubleshooting ProcessThe troubleshooting process is a systematic approach that addresses the major problems first, then other

ENTroubleshooting Process 7-3 Image Quality(page 7-48)Does the print quality meet the customer’s expectations?This section gives Toner Cartridge check

7-4 TroubleshootingENTroubleshooting Process Flow

ENTroubleshooting Process 7-5

7-6 TroubleshootingENTroubleshooting the Printing SystemPreliminary Operating ChecksPrior to troubleshooting a specific printer problem, you should e

ENTroubleshooting the Printing System 7-7 Power OnIt is important to have the printer’s Control Panel functional as soon as possible in the troublesho

7-8 TroubleshootingENTable 7-3. No AC PowerCause ActionNo correct voltage present at the outlet. Plug the power cord into another AC circuit outlet.I

1-14 Printer DescriptionEN1. The printer supports a wide range of media sizes. Check the printer softwarefor supported sizes.Supported Types of Paper

ENTroubleshooting the Printing System 7-9 Engine TestThe engine test verifies that the print engine is functioning correctly. The Formatter PCA is com

7-10 TroubleshootingENEngine Test Button LocationThe engine test verifies that the print engine is functioning correctly. The Formatter PCA is comple

ENTroubleshooting the Printing System 7-11 DisplayThe Control Panel should display READY, OFFLINE, or POWERSAVE ON. For information about errors displ

7-12 TroubleshootingENEvent LogUse the Event Log to diagnose and troubleshoot printer errors and intermittent failures. You can either display or pri

ENTroubleshooting the Printing System 7-13 Figure 7-2Event Log Page

7-14 TroubleshootingENDisplay the Event LogIf the printer cannot print or move any paper, follow these steps to display the Event Log.1 Press [Menu]

ENTroubleshooting the Printing System 7-15 The Event Log may record errors in a different format than the Control Panel Display. For example, should a

7-16 TroubleshootingENPrinter MessagesThe following table explains messages that might display on the printer’s Control Panel. Alphabetical printer m

ENTroubleshooting the Printing System 7-17 BAD OPT TRAY CONNECTIONThe optional tray is not connected properly.1. Re-install the optional tray.2. Make

7-18 TroubleshootingENDISK FILE OPERATION FAILEDThe requested operation could not be performed. You might have attempted an illegal operation, such a

ENPaper Specifications 1-15 Guidelines for Using PaperFor best results, use conventional 20 lb (75 g/m2) paper. Make sure the paper is of good quality

ENTroubleshooting the Printing System 7-19 FLASH FILESYSTEM IS FULLThe flash DIMM is full. 1. Delete files from the Flash DIMM or add another DIMM. 2.

7-20 TroubleshootingENINSTALL TRAY xThe printer is unable to print the current job because the specified tray (x) is open or not inserted correctly.

ENTroubleshooting the Printing System 7-21 MEMORY FULL STORED DATA LOSTThere is no available memory in the printer. The current job might not print co

7-22 TroubleshootingENPERFORM PRINTER MAINTENANCETo ensure optimum print quality, the printer prompts the customer to have routine maintenance perfor

ENTroubleshooting the Printing System 7-23 RAM DISK IS WRITE PROTECTEDThe RAM disk is protected, and no new files can be written to it.Disable the wri

7-24 TroubleshootingENTRAY x LOAD [TYPE] [SIZE]One of the following occurred:There is no paper loaded in the specified tray, or the paper is not the

ENTroubleshooting the Printing System 7-25 USE [TYPE][SIZE] INSTEAD?If the requested paper size or type is not available, the printer asks if it shoul

7-26 TroubleshootingENTable 7-6. Numerical Printer MessagesControl Panel MessageEvent Log MessageExplanation Recommended Action13.x PAPER JAM [LOCATI

ENTroubleshooting the Printing System 7-27 13.5 PAPER JAM13.05 Paper delay jam at Fuser.For 13.5 and 13.6: 1. Check the Transfer Roller and Small Medi

7-28 TroubleshootingEN13.20 PAPER JAM13.20 or 13.32Paper stopped jam in the paper path.For 13.20 and 13.21: 1. Check the entire paper path for obstru

1-16 Printer DescriptionENNote Do not use letterhead paper that is printed with low-temperature inks, such as those used in some types of thermograph

ENTroubleshooting the Printing System 7-29 22 EIO x BUFFER OVERFLOWalternates withPRESS GO TOCONTINUEToo much data was sent to the EIO card in the spe

7-30 TroubleshootingEN40 BAD SERIAL TRANSMISSIONalternates withPRESS GO TOCONTINUEThe printer encountered an error while transferring data from the c

ENTroubleshooting the Printing System 7-31 41.3 UNEXPECTED PAPER SIZEThe paper size you are trying to print is not the same as the settings for the tr

7-32 TroubleshootingEN50.x FUSER ERRORA Fuser error has occurred. X Description1 Low Fuser temperature.2 Fuser warm up service.3 High Fuser temperatu

ENTroubleshooting the Printing System 7-33 51.x PRINTER ERRORA loss of beam detect occurred.X Description1 Beam detect error.2 Laser error.1. Press [G

7-34 TroubleshootingEN53.xy.zz PRINTER ERRORThere is a memory error with an accessory. The DIMM that caused the error will not be used. Values of x,

ENTroubleshooting the Printing System 7-35 55 PRINTER ERRORalternates withPRESS GO TOCONTINUEAn internal communication error occurred.1. Press [Go]. T

7-36 TroubleshootingEN62.xPRINTER ERRORThere is a problem with the printer’s memory. The x value refers to the location of the problem:0 = Internal m

ENTroubleshooting the Printing System 7-37 68 NVRAM FULL CHECK SETTINGSAn error occurred in the printer’s nonvolatile memory (NVRAM) and one or more p

7-38 TroubleshootingEN79.xxxxPRINTER ERRORThe printer detected an error. The numbers (xxxx) indicate the specific type of error. 1. Turn the printer

ENPaper Specifications 1-17 Paper Weight Equivalence TableUse this table to determine approximate equivalent points in weight specifications other tha

ENTroubleshooting the Printing System 7-39 8x.yyyyThe EIO accessory in slot x has encountered a critical error as specified by yyyy.X Description1 EIO

7-40 TroubleshootingENGeneral Paper Path TroubleshootingPaper jams occur in the printer when paper does not either reach or clear a photosensor along

ENTroubleshooting the Printing System 7-41 Is the customer loading the paper trays correctly?Observe the customer loading paper. Do not fan paper. Ref

7-42 TroubleshootingENPaper Path TestTo perform a Paper Path Test:1 Press [Menu] until INFORMATION MENU appears2 Press [Item] until PRINT PAPER PATH

ENTroubleshooting the Printing System 7-43 Information PagesFrom the printer’s control panel you can print pages that give details about the printer a

7-44 TroubleshootingENFigure 7-4 Menu Map

ENTroubleshooting the Printing System 7-45 Configuration PageUse the Configuration Page to view current printer settings, to help troubleshoot printer

7-46 TroubleshootingENFigure 7-5 Configuration Page

ENTroubleshooting the Printing System 7-47 Verify installed optionsUnder “Installed Personalities” on the Configuration page, look for options such as

7-48 TroubleshootingENImage QualityWhen you are working with customers, obtain a print sample before you begin troubleshooting their printer. Ask the

1-18 Printer DescriptionENLabelsCAUTION To avoid damaging the printer, use only labels recommended for use in laser printers.If you have problems pri

ENTroubleshooting the Printing System 7-49 Use the following list to ensure that the Toner Cartridge is still operable.●Ensure that the Toner Cartridg

7-50 TroubleshootingENImage DefectsThe quality of the printer’s output is subject to the judgment of the user. This section of the manual helps you d

ENTroubleshooting the Printing System 7-51 Table 7-9. Black Lines (perpendicular path)Possible Cause ActionDefective Toner Cartridge.Inspect the Toner

7-52 TroubleshootingENHigh voltage power supply circuit is defective (not supplying the correct negative voltage).Replace the High Voltage Power Supp

ENTroubleshooting the Printing System 7-53 Connectors between the Laser/Scanner unit and DC Controller are not seated properly or are defective.Inspec

7-54 TroubleshootingENEmpty or defective Toner Cartridge.1. If unsure, weigh the cartridge:• Full weight = 1880 grams (66.3 oz)• Empty weight = 1450

ENTroubleshooting the Printing System 7-55 DC Controller PCA is defective. The DC Controller supplies the proper voltage to the High Voltage Power Sup

7-56 TroubleshootingENDirty or deformed Transfer Roller.Replace the Transfer Roller.See also “Dropouts” on page 7-60.Table 7-13. Character VoidsPossi

ENTroubleshooting the Printing System 7-57 Bad Transfer Roller. If the Transfer Roller has finger oils on its surface, is dirty or worn out, this prob

7-58 TroubleshootingENTable 7-15. CurlPossible Cause ActionPaper does not meet printer specifications or is stored improperly.1. Print a few more pag

ENPaper Specifications 1-19 EnvelopesEnvelope ConstructionEnvelope construction is critical. Envelope fold lines can vary considerably, not only betwe

ENTroubleshooting the Printing System 7-59 Table 7-16. Dirt on BackPossible Cause ActionDirt inside printer (Tray Separation Roller, Feed Roller, Tran

7-60 TroubleshootingENPoor connection of cables to the Laser Scanner.Reseat the cables connected to the Laser Scanner.Poor connection of cables to th

ENTroubleshooting the Printing System 7-61 Paper does not meet specifications. The paper moisture content, conductivity, or surface finish may not wor

7-62 TroubleshootingENEconoMode is on. EconoMode saves toner by reducing the dot density. This may appear to be a print quality problem in some cases

ENTroubleshooting the Printing System 7-63 High Voltage Power Supply PCA is defective.Replace the High Voltage Power Supply PCA.DC Controller PCA is d

7-64 TroubleshootingENWrong toner density setting.From the Print Quality Menu on the Control Panel, adjust the toner density setting. Make sure Econo

ENTroubleshooting the Printing System 7-65 Table 7-22. Horizontal White LinesPossible Cause ActionLack of toner or faulty Toner Cartridge.Redistribute

7-66 TroubleshootingENPoor contact to the Engine Controller Board.1. Clean the contacts if they are dirty. If the problem remains after cleaning, or

ENTroubleshooting the Printing System 7-67 Table 7-25. Repetitive DefectsPossible Cause ActionToner Cartridge is damaged. The circumference of the pho

7-68 TroubleshootingENTable 7-26. SkewPossible Cause ActionPaper does not meet printer specifications or is stored improperly.1. Print a few more pag

1-20 Printer DescriptionENEnvelopes with Adhesive Strips or FlapsEnvelopes with a peel-off adhesive strip or with more than one flap that folds over

ENTroubleshooting the Printing System 7-69 Wrong Fuser setting for paper type.From the Paper Handling Menu on the Control Panel, change the Fuser Mode

7-70 TroubleshootingENPaper does not meet printer specifications or is stored improperly.1. Print a few more pages to see if the problem corrects its

ENTroubleshooting the Printing System 7-71 Table 7-30. Vertical DotsPossible Cause ActionDirty static eliminator teeth.Clean the static eliminator.Poo

7-72 TroubleshootingENRepetitive Defect RulerRepetitive print defects usually are associated with a specific roller within the printer or the Toner C

ENTroubleshooting the Printing System 7-73 Figure 7-6Repetitive Defect Ruler

7-74 TroubleshootingENImage System Troubleshooting Half Self-Test Functional CheckThe electrophotographic process can be subdivided into the followi

ENTroubleshooting the Printing System 7-75 Drum Rotation Functional CheckThe photosensitive drum, located in the Toner Cartridge, must rotate for the

7-76 TroubleshootingENInterface TroubleshootingThis section provides an overview of the printer’s interface requirements.Communications CheckNote Com

ENTroubleshooting the Printing System 7-77 Figure 7-7JetDirect Configuration PageNetwork statisticsI/O card statusIP addressNode name Novell status

7-78 TroubleshootingENJetDirect Configuration●If the EIO JetDirect Card has successfully powered up and completed its internal diagnostics, the I/O C

Hewlett-Packard Company11311 Chinden BoulevardBoise, Idaho 83714 U.S.A.© Copyright Hewlett-Packard Company 1998All Rights Reserved. Reproduction, adap

ENPaper Specifications 1-21 Card Stock Construction●Smoothness: 36-53 lb (135-199 g/m2) card stock should have a smoothness rating of 100-180 Sheffiel

ENReference Diagrams 7-79 Reference DiagramsLocations of ComponentsFigure 7-8Paper Path

7-80 TroubleshootingENFigure 7-9 250-sheet Paper Feeder

ENReference Diagrams 7-81 Figure 7-10250-sheet Paper Feeder

7-82 TroubleshootingENFigure 7-11 Tray 2 Paper Path

ENReference Diagrams 7-83 Figure 7-12500-sheet Paper Feeder

7-84 TroubleshootingENFigure 7-13 500-sheet Paper Feeder

ENReference Diagrams 7-85 Figure 7-14Duplexing Unit

7-86 TroubleshootingENFigure 7-15 Duplexing Unit

ENReference Diagrams 7-87 Figure 7-16Duplexing Unit

7-88 TroubleshootingENSensors and SignalsThe drawing below shows key components, sensors, and switches that control the operation of the printer. The

1-22 Printer DescriptionENSafety InformationLaser Safety StatementThe Center for Devices and Radiological Health (CDRH) of the U.S. Food and Drug Adm

ENReference Diagrams 7-89 Figure 7-18Paper Path (dashed lines represent duplexer path)

7-90 TroubleshootingENTable 7-32. Table 1 Sensors and SignalsSensor NameCL405 Registration roller clutchCL406 Feed roller clutchPS301 Tray 2 paper se

ENReference Diagrams 7-91 SW401 Top cover switchSW403 Tray 2 paper size switch 1SW404 Tray 2 paper size switch 2SW405 Tray 2 paper size switch 3SW1601

7-92 TroubleshootingENFigure 7-19 Location of Sensors and Switches

ENReference Diagrams 7-93 Figure 7-20Duplexer Sensors and SwitchesReversing unit paper sensorDeflector drive solenoidRefeed paper sensorSide registrat

7-94 TroubleshootingENFigure 7-21 Motors

ENReference Diagrams 7-95 Figure 7-22Motors (Duplexing unit)

7-96 TroubleshootingENFigure 7-23 Connectors

ENReference Diagrams 7-97 Figure 7-24Connectors (Duplexing Unit and 250-sheet Paper Feeder)

7-98 TroubleshootingENFigure 7-25 PCA’s

ENSafety Information 1-23 FCC RegulationsThis equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to

ENReference Diagrams 7-99 Figure 7-26PCA (Duplexing Unit)

7-100 TroubleshootingENFigure 7-27 Clutches and Solenoids

ENReference Diagrams 7-101 Figure 7-28Clutches and Solenoids (Duplexing Unit)

7-102 TroubleshootingENFigure 7-29 Switches

ENReference Diagrams 7-103 Figure 7-30Switches (500-sheet Paper Feeder)

7-104 TroubleshootingENFigure 7-31 DC Controller Board Test Points and Switches

ENReference Diagrams 7-105 Figure 7-32250-sheet Paper Feeder Sensors

7-106 TroubleshootingEN

ENReference Diagrams 7-107 DC Controller PCA Inputs and Outputs Figure 7-33DC Controller PCA I/O (1 of 4)

7-108 TroubleshootingENFigure 7-34 DC Controller PCA I/O (2 of 4)

1-24 Printer DescriptionENLaser statement for FinlandLuokan 1 laserlaiteKlass 1 Laser ApparatHP LaserJet 5000, 5000 N, 5000 GN -laserkirjoitin on käy

ENReference Diagrams 7-109 Figure 7-35DC Controller PCA I/O (3 of 4)

7-110 TroubleshootingENFigure 7-36 DC Controller PCA I/O (4 of 4)

ENOverview 8-1 8Parts and DiagramsOverviewThe figures in this chapter identify and locate the printer’s major subassemblies and replacement parts. Thi

8-2 Parts and DiagramsENHow To Use the Parts Lists and DiagramsThe figures in this chapter illustrate the major subassemblies in the printer and thei

ENHow To Use the Parts Lists and Diagrams 8-3 Contact your local HP Parts Coordinator for other local phone numbers.NoteParts that have no item number

8-4 Parts and DiagramsENAccessories and SuppliesThe following items are available through your local authorized HP dealer. To find a dealer near you,

ENAccessories and Supplies 8-5 Serial Cables9-9 pin serial cable (male/female)9-25 pin serial cable (male/female)C2932AC2933ASerial Adapter25-9 pin ad

8-6 Parts and DiagramsENCommon Hardware and Replacement CablesTable 8-2. Screws Used in the PrinterDescription Part No.Screw, M4x10 Pan Head Tapping

ENIllustrations and Parts Lists 8-7 Illustrations and Parts ListsUpper Delivery Roller AssemblyPaper Feed Belt AssemblyPaper Feed Roller AssemblyDC Co

8-8 Parts and DiagramsENFigure 8-1 Assembly Location DiagramFuserRegistration Roller AssemblyPaper TrayPaper Pickup Roller AssemblyToner CartridgeTab

ENSafety Information 1-25 Varning!Om laserprinterns skyddshölje öppnas då apparaten är i funktion, utsättas användaren för osynlig laserstrålning. Bet

ENIllustrations and Parts Lists 8-9 Paper Feed Roller AssemblyRG5-3522-000CN Figure 8-11Paper Feed Belt RG5-3526-000CN Figure 8-10Registration Roller

8-10 Parts and DiagramsENFigure 8-2 External Covers and Panels4125376ABCDFEGHI8ABC6910Table 8-5. External Covers and PanelsItem No. Part No. Quantity

ENIllustrations and Parts Lists 8-11 1C RB2-1772-000CN 1 Tray 1 Leaf Spring2 RG5-3548-000CN 1 Tray 1 Paper Guide3 RG5-3549-000CN 1 Front Cover Assembl

8-12 Parts and DiagramsENFigure 8-3 Upper Cover Assembly 31245Table 8-6. Top Cover AssemblyItem No. Part No. Quantity Description1 RG5-3604-000CN 1 C

ENIllustrations and Parts Lists 8-13 3 RG5-3556-000CN 1 Toner Cartridge Door Assembly4 RB2-1759-000CN 1 Control Panel Leaf Spring5 RB2-1906-000CN 1 Cl

8-14 Parts and DiagramsENFigure 8-4 Internal Components (1 of 4)Cables are listed in Table 8-3 on page 8-6.12345678910111213141516171819202122Screws:

ENIllustrations and Parts Lists 8-15 2 RG5-3553-000CN 1 Rear Door Sensor Assembly3 RG5-3585-000CN 1 Tray 1 Separation Pad with Spring4 RH7-5195-000CN

8-16 Parts and DiagramsENFigure 8-5 Internal Components (2 of 4)1245678910111213141516171819202122232425Screws M4x10, Tapping, Pan Head unless otherw

ENIllustrations and Parts Lists 8-17 Table 8-8. Internal Components (2 of 4)Item No. Part No. Quantity Description1 RS5-1392-000CN 2 Tray 1 and 2 Pick

8-18 Parts and DiagramsENFigure 8-6 Internal Components (3 of 4)12567893410

1-26 Printer DescriptionENEnvironmental Product StewardshipProtecting the EnvironmentHewlett-Packard Company is committed to providing quality produc

ENIllustrations and Parts Lists 8-19 Table 8-9. Internal Components (3 of 4)Item No. Part No. Quantity Description1 RG5-3525-000CN 1 Transfer Guide As

8-20 Parts and DiagramsENFigure 8-7 Internal Components (4 of 4)12345

ENIllustrations and Parts Lists 8-21 Table 8-10. Internal Components (4 of 4)Item No. Part No. Quantity Description1 RG5-3579-000CN 1 Transfer Roller

8-22 Parts and DiagramsENFigure 8-8 Upper Delivery AssemblyTable 8-11. Upper Delivery AssemblyItem No. Part No. Quantity Description1 RG5-3542-000CN

ENIllustrations and Parts Lists 8-23 Figure 8-9Tray 2 Paper Pickup Roller Assembly123456789Table 8-12. Tray 2 Paper Pickup Roller AssemblyItem No. Par

8-24 Parts and DiagramsENFigure 8-10 Paper Feed Belt Assembly123456789101112

ENIllustrations and Parts Lists 8-25 Table 8-13. Paper Feed Belt AssemblyItem No. Part No. Quantity Description1 RG5-3526-000CN 1 Paper Feed Belt Asse

8-26 Parts and DiagramsENFigure 8-11 Paper Feed Assembly12345

ENIllustrations and Parts Lists 8-27 Table 8-14. Paper Feed AssemblyItem No. Part No. Quantity Description1 RG5-3522-000CN 1 Paper Feed Roller Assembl

8-28 Parts and DiagramsENFigure 8-12 Registration Roller Assembly1

ENOverview 2-1 2Service ApproachOverviewThis chapter discusses the following:●Service Approach●Parts and Supplies●Warranty Statement

ENIllustrations and Parts Lists 8-29 Table 8-15. Registration Roller AssemblyItem No. Part No. Quantity Description1 RG5-3524-000CN 1 Registration Rol

8-30 Parts and DiagramsENFigure 8-13 250-sheet Tray12354

ENIllustrations and Parts Lists 8-31 Table 8-16. 250-sheet TrayItem No. Part No. Quantity Description1 C4116A 1 250-sheet Universal Paper Tray2 RB2-20

8-32 Parts and DiagramsENFigure 8-14 Main Drive Assembly1234

ENIllustrations and Parts Lists 8-33 Table 8-17. Main Drive AssemblyItem No. Part No. Quantity Description1 RG5-3543-000CN 1 Main Gear Assembly2 RB2-1

8-34 Parts and DiagramsENFigure 8-15 Pickup Drive Assembly123Table 8-18. Pickup Drive AssemblyItem No. Part No. Quantity Description1 RG5-3544-000CN

ENIllustrations and Parts Lists 8-35 Figure 8-16PCA Assembly Locations123Table 8-19. PCA Assembly LocationsItem No. Part No. Quantity Description1 RG5

8-36 Parts and DiagramsENFigure 8-17 Printer Controller Assembly123Table 8-20. Printer Controller AssemblyItem No. Part No. Quantity Description1 RH2

ENIllustrations and Parts Lists 8-37 Figure 8-18Fuser1Table 8-21. FuserItem No. Part No. Quantity Description1 RG5-3528-000CN 1 Fuser (100 - 120 V)1 R

8-38 Parts and DiagramsENFigure 8-19 500-sheet Feeder108117651231394111212

2-2 Service ApproachENService ApproachRepair of the printer normally begins with use of the printer’s internal diagnostics in conjunction with the tr

ENIllustrations and Parts Lists 8-39 Table 8-22. 500-sheet FeederItem No. Part No. Quantity Description1 RB2-3211-000CN 1 Right Mount2 RB2-3235-000CN

8-40 Parts and DiagramsENFigure 8-20 500-sheet Feeder958213746

ENIllustrations and Parts Lists 8-41 Table 8-23. 500-sheet FeederItem No. Part No. Quantity Description1 RG5-4213-000CN 1 Upper Contact Cable2 RG5-421

8-42 Parts and DiagramsENAlphabetical Parts List Description Part Number Table Number and Page250-sheet Universal Paper Tray C4116A Table 8-16 on p

ENIllustrations and Parts Lists 8-43 Feeder Controller PCA Assembly, 500-sheet FeederRG5-4211-000CN Table 8-23 on page 8-41Flat Cable RH2-5337-000CN T

8-44 Parts and DiagramsENLower Delivery Roller Spring RB1-6252-000CN Table 8-9 on page 8-19Lower Delivery Shaft Gear RS6-0357-000CN Table 8-7 on page

ENIllustrations and Parts Lists 8-45 Rear Door Sensor Assembly RG5-3553-000CN Table 8-7 on page 8-14Registration Roller Assembly RG5-3524-000CN Table

8-46 Parts and DiagramsENStatic Charge Eliminator RB2-1981-000CN Table 8-11 on page 8-22Switch Rod RB2-1731-000CN Table 8-8 on page 8-17Tension Sprin

ENIllustrations and Parts Lists 8-47 Numerical Parts ListPart Number Description Table Number and PageC3974-69001 Formatter AssemblyC4116A 250-sheet

8-48 Parts and DiagramsENRB2-1781-000CN Paper Sensor Lever Table 8-7 on page 8-14RB2-1782-000CN Paper Sensor Lever Table 8-7 on page 8-14RB2-1783-000

ENParts and Supplies 2-3 Parts and SuppliesOrdering InformationField replaceable and accessory part numbers are found in Chapter 8 of this manual. Rep

ENIllustrations and Parts Lists 8-49 RB2-1989-000CN Left Bushing Lower Delivery Roller Table 8-7 on page 8-14RB2-1990-000CN Grounding Plate Table 8-7

8-50 Parts and DiagramsENRG5-3519-000CN Tray 1 Pickup Roller Assembly Table 8-8 on page 8-17RG5-3520-000CN Tray 1 Paper Guide Plate Assembly Table 8-

ENIllustrations and Parts Lists 8-51 RH2-5338-000CN Cable, Ribbon, from Paper PCA to ControllerFigure 8-4 on page 8-14RH3-2195-000CN Power Supply (100

8-52 Parts and DiagramsEN

ENIndex1 IndexNumerics500-sheet Feeder PCA, removing and replacing 6-81500-sheet Tray, disassembly 6-74AAC/DC power distribution 5-3accessories 8-4

Index 2 ENHheavy paper 1-20II/O menu 3-24imagedeveloping 5-25transferring 5-26writing 5-24Image Formation System 5-18photosensitive drum 5-21image

ENIndex3 Print Quality menu 3-10printerfeatures 1-2messages 7-16model numbers 1-5serial numbers 1-5subsystems 5-2testing 3-35weight 1-9printingengi

Index 4 ENTray Indicator Assembly, removing and replacing 6-76troubleshooting 7-1configuration page 7-46display 7-11engine test 7-9Event Log 7-12fl

2-4 Service ApproachENHelpful Documentation Table 2-1 lists part numbers to order documentation.Table 2-1. Helpful DocumentationItem Description or

ENContents 1Contents1 Printer DescriptionOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1Printer Fe

ENParts and Supplies 2-5 Phone Numbers for Ordering●SMO (Support Materials Organization)1-800-227-8164 (U.S. only)●SME (Support Materials Europe)(49 7

2-6 Service ApproachENHP FIRSTHP FIRST (Fax Information Retrieval Support Technology) is a phone-in fax service that provides technical information f

ENParts and Supplies 2-7 North American Response Center (NARC)The North American Response Center (NARC) is available to assist service technicians. Th

2-8 Service ApproachENToner Cartridge InformationThe Toner Cartridge is designed to simplify replacement of the major “consumable” parts. The Toner C

ENWarranty Statement 2-9 Warranty StatementThis warranty gives specific legal rights. There may also be other rights which vary from area to area. Ref

2-10 Service ApproachEN

ENOverview 3-1 3Printer OperationOverviewThis chapter discusses the following:●Using the Control Panel●Control Panel Menus●Service Mode●Testing the Pr

3-2 Printer OperationENUsing the Control PanelControl Panel LayoutThe printer’s Control Panel consists of the following:Figure 3-1 Control Panel Layo

ENUsing the Control Panel 3-3 Control Panel KeysTable 3-2. Control Panel KeysKey Function[Go]●Places the printer either online or offline.●Prints any

3-4 Printer OperationENSettings and DefaultsThe printer makes most printing decisions based on either temporary settings or permanent defaults. Note

2 ContentsEN3 Printer OperationOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1Using the Control

ENControl Panel Menus 3-5 Control Panel MenusPress [Menu] for access to all Control Panel menus. When additional trays or other accessories are instal

3-6 Printer OperationENInformation MenuThis menu contains printer information pages that give details about the printer and its configuration. To pri

ENControl Panel Menus 3-7 Paper Handling MenuWhen paper handling settings are correctly configured through the Control Panel, you can print by choosin

3-8 Printer OperationENTRAY 4 TYPE=PLAINFor supported paper types see page 1-14.This item appears only when a fourth paper tray is installed. Set the

ENControl Panel Menus 3-9 CONFIGURE FUSER MODE MENU=NONOYESConfigure the fuser mode associated with each paper type. (This is only necessary if you ar

3-10 Printer OperationENPrint Quality MenuSome items in this menu can be accessed from a software application, or from the printer driver (if the app

ENControl Panel Menus 3-11 RET=MEDIUM OFFLIGHTMEDIUMDARKUse the printer’s Resolution Enhancement technology (REt) setting to produce print with smooth

3-12 Printer OperationENTONER DENSITY=3 12345Lighten or darken the print on the page by changing the toner density setting. The settings range from 1

ENControl Panel Menus 3-13 Printing MenuSome items in this menu can be accessed from a software application, or from the printer driver (if the approp

3-14 Printer OperationENUNIT OF MEASURE=INCHES(110 V printers)orMILLIMETERS(220 V printers)INCHESMILLIMETERSThis item appears only when CONFIGURE CUS

ENContents 35 Functional InformationOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1Printer Subsyste

ENControl Panel Menus 3-15 PCL FONTSOURCE=INTERNALINTERNALSOFTSLOT 1, 2, or 3INTERNAL: Internal fonts.SOFT: Permanent soft fonts.SLOT 1, 2, or 3: Font

3-16 Printer OperationENCOURIER=REGULAR REGULARDARKSelect the version of Courier font to use:REGULAR: The internal Courier font available on the HP L

ENControl Panel Menus 3-17 Configuration MenuItems in this menu affect the printer’s behavior. Configure the printer according to your printing needs.

3-18 Printer OperationENRESOURCE SAVE=OFFOFFONAUTO(8 MB total is required to see this message.)Dedicate printer memory to save each language’s perman

ENControl Panel Menus 3-19 PS MEMORY=400K0K and up(This value depends on the amount of installed memory. 8 MB total is required to see this message.)T

3-20 Printer OperationENAUTO CONTINUE=ONONOFFDetermine how the printer reacts to errors.ON: If an error occurs that prevents printing, the message wi

ENControl Panel Menus 3-21 MOPIER MODE=STANDARDSTANDARDENHANCEDOFFDetermine how the mopier functions behave. This item appears only when there is at l

3-22 Printer OperationENRAM DISK SIZE=xxxK0K and up(This value depends on the amount of installed memory.)Determine the size of the RAM disk. This it

ENControl Panel Menus 3-23 MAINTENANCE MESSAGE=OFFOFFThis item appears only after the PERFORM PRINTER MAINTENANCE message displays.OFF: The PERFORM PR

3-24 Printer OperationENI/O MenuItems in the I/O (input/output) Menu affect the communication between the printer and the computer.Table 3-9. I/O Men

4 ContentsEN6 Removing and Replacing PartsOverview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1User In

ENControl Panel Menus 3-25 I/O BUFFER SIZE=100K10K and up This item appears only when I/O BUFFER=ON. Specify the amount of memory for I/O buffering. T

3-26 Printer OperationENSERIAL ROBUST XON=ONONOFFThis item appears only when SERIAL PACING=XON/XOFF. Select the method for generating XONs.ON: The pr

ENControl Panel Menus 3-27 EIO Menu (Networked Printers)EIO (Enhanced Input/Output) Menus depend on the particular accessory product installed in an E

3-28 Printer OperationENCFG TCP/IP=NO NOYESNO: The TCP/IP Menu is not accessible.YES: The TCP/IP Menu appears. In the TCP/IP Menu, you can specify BO

ENControl Panel Menus 3-29 Resets MenuUse this menu with caution. You can lose buffered page data or printer configuration settings when you select th

3-30 Printer OperationENService ModeService Mode should be used only by authorized service personnel. While in Service Mode, you can:●Verify and set

ENService Mode 3-31 Service MenuFigure 3-2Service MenuSetting the Page Count, Maintenance Count, and Serial NumberThe page count and serial numbers ar

3-32 Printer OperationENPage CountThe page count stored in NVRAM and displayed on the Configuration Page printout represents the number of pages whic

ENService Mode 3-33 Table 3-12. Changing the Page CountKey Press Display DescriptionSERVICE MODE[Menu+] SERVICE MENUEnter the SERVICE MENU.[Item+] PAG

3-34 Printer OperationENMaintenance Page CountThe maintenance page count should be reset only after a maintenance kit has been installed. This will r

ENContents 5Optional 500-sheet Tray Disassembly . . . . . . . . . . . . . . . . . . . 6-74Tray Indicator Assembly . . . . . . . . . . . . . . . . . .

ENTesting the Printer 3-35 Testing the PrinterWhen you print a Configuration Page, the printer checks its internal controller and I/O interface, and t

3-36 Printer OperationENResetting the PrinterCold ResetCold Reset clears all data from the printer memory and sets all the defaults back to the facto

ENSystem Configuration 3-37 System ConfigurationMS-DOS System ConfigurationTo communicate properly with the printer, the MS-DOS environment requires t

3-38 Printer OperationENSerial MS-DOS CommandsMost IBM compatible computers default to a parallel printer port. To ensure that information is sent to

ENPrinter I/O Configuration 3-39 Printer I/O ConfigurationParallel MenuThe default setting for the HIGH SPEED PARALLEL I/O is YES. If it is set to NO,

3-40 Printer OperationENPacing (Handshaking)Pacing (or “handshaking”) is a type of communication between the printer and the computer. This is an imp

ENOverview 4-1 4Printer MaintenanceOverviewThis chapter discusses the following:●Cleaning the Printer and Accessories●Preventative Maintenance

4-2 Printer MaintenanceENCleaning the Printer and AccessoriesTo maintain high print quality and performance, thoroughly clean the printer and the pap

ENCleaning the Printer and Accessories 4-3 Table 4-1. Cleaning the PrinterComponent Cleaning Method / NotesOutside Covers Use a water-dampened cloth.

4-4 Printer MaintenanceENUsing the Printer Cleaning PageIf toner specks appear on the front or back side of your print jobs, follow the procedure bel

6 ContentsEN

ENPreventative Maintenance 4-5 Preventative MaintenanceThe preventative maintenance cycle for this printer, conducted by service personnel, is every 1

4-6 Printer MaintenanceEN6 Transfer Charging RollerRG5-3579-000CN 1 150,000 pages7 Exhaust Fan RH7-1354-000CN 1 25,000 hoursTable 4-2. Life of Compon

ENOverview 5-1 5Functional InformationOverviewThis chapter discusses the following:●Power Supply Subsystem●DC Controller Subsystem●Formatter PCA●Contr

5-2 Functional InformationENPrinter SubsystemsThis chapter presents a generalized functional overview of the printer and the printing processes.Figur

ENPower Supply System 5-3 Power Supply SystemAC/DC Power DistributionThe AC line voltage for the printer is applied through the main switch (SW101) an

5-4 Functional InformationENFigure 5-2 Low Voltage Power Supply Circuit If a short circuit or other problems on the load side cause an excessive curr

ENPower Supply System 5-5 Overcurrent Overvoltage Protection This circuit located on the DC controller PCA always monitors an abnormal rise of the fus

5-6 Functional InformationENHigh Voltage Power DistributionFigure 5-3 High Voltage Power Supply CircuitIn response to the instructions from the micro

ENPower Supply System 5-7 Toner Cartridge DetectionThe Toner Cartridge has a toner sensor. The circuit compares the output value of the developing AC

5-8 Functional InformationENFigure 5-4 DC Controller PCA Laser and Scanner DriveBased on information received from the Formatter, the DC Controller B