Exp-computer C4077-90960 Manual de usuario

Copyright© 1997Hewlett-Packard Co.Printed in USA 7/97Manual Part No.C4077-90960HP LaserJet 5Si FamilyPrinters Service ManualEnglishHP LaserJet 5Si Fa

Figure 6-99 Mailbox with Stapler, Stapler Removal . . . . . . . . . . 6-109Figure 7-1 HP LaserJet 5Si / 5Si MX / 5Si Mopier Troubleshooting

Drum ConditioningAfter the drum is physically cleaned, it is conditioned by applying a uniformnegative charge across the surface of the drum with the

Image WritingDuring the writing process, a modulated laser diode projects a beam onto arotating six-sided scanning mirror. As the scanning mirror rot

Image DevelopingThe developing process changes the latent electrostatic image into a visibleimage by depositing negatively charged toner particles on

Image Transferring and Media SeparationDuring the image transferring process, the toner image on the drum surfaceis transferred to the media. A posit

Image FusingThe Fusing Assembly bonds the toner particles into the media with a heatedfusing roller and a soft pressure roller. There are two levers o

Paper Paths and ComponentsPrinter, Duplex Unit, and Envelope FeederThe components of the printer paper path are illustrated in Figure 5-14.Figure 5-15

Control Device Title LocationCL1 Registration Clutch PIU (right side)CL2 Paper Input Unit Feed Clutch PIU (right side)CL3 Tray 1 Feed Clutch Tray 1 Dr

Figure 5-15 Printer Sensors, Solenoids, Clutches, Motors, and Fans.5-22 Functional Overview

2000-Sheet Input Unit (Tray 4) Components The components of the 2000-Sheet Input Unit paper path are illustrated inFigure 5-16. Figure 5-17 and Table

Control Device Title LocationCL31 Transfer Assembly Clutch Transfer AssemblyCL32 Main Drive Clutch Lower Chassis(behind Back Cover)MT31 Main Motor Low

Figure 8-3 Printer Internal Components (1 of 4) . . . . . . . . . . . . 8-12Figure 8-4 Printer Internal Components (2 of 4) . . . .

Paper Jam Sensor(PS32)RegistrationSensor(PS31)RegistrationClutch (CL32)LifterClutch (CL31)Main Motor(M1)Paper QuantitySwitches(SW601, SW602)Paper Size

2000-Sheet Input Unit OperationAll communication and control of the 2000-Sheet Input Unit (and theMulti-Bin Mailbox/Mailbox With Stapler) is through t

Paper Size SW701 SW702 SW703 SW704Ledger (portrait) OFF ON OFF OFFA3 (portrait) ON ON OFF OFFB4 (portrait) OFF OFF ON OFFLegal (portrait) OFF ON ON OF

Multi-Bin Mailbox ComponentsThe components of the Multi-Bin Mailbox paper path are illustrated inFigure 5-18. Figure 5-19 and Table 5-5 illustrate a

Control Device Title LocationM1 Delivery Head Position Motor Upper Left SideM2 Flipper Roller Motor Flipper Unit (left end)M3 Delivery Head Roller Mot

PSFaceUpPSFUFullPSEntryDelivery HeadPosition Motor (M1)Flipper RollerMotor (M2)Delivery Head RollerMotor (M3)PSExitIRLEDPSEjectPSBinFull/Head Position

Multi-Bin Mailbox OperationAll communication and control of the Multi-Bin Mailbox (and the2000-Sheet Input Unit) is through the External Paper Handlin

trailing edge is sensed by PSFaceUp. The Flipper Roller motor (M3) thenreverses and feeds the sheet down between the transport belt and themetallic t

Stapling Unit ComponentsThe components of the Stapling Unit paper path are illustrated in Figure5-20. Figure 5-21 and Table 5-6 illustrate and desc

Control Device Title LocationM1 Stapler DC Motor Stapler AssemblyM2 Rack Stepper Motor Top Cover AssemblyM3 Slider Stepper Motor Top Cover AssemblyM4

List of TablesTable 1-1 Printer Features . . . . . . . . . . . . . . . . . . . . . . . 1-3Table 1-2 Tray 1 Media Guidelines .

PSSliderNextBinFullSensorPSBinFullM3M2STLOutM1STLSensorSW1PSRetainerM4PSRackIRSensorFigure 5-21 Stapler Sensors and Motors 5FunctionalOvervi

The major assemblies and subassemblies of the stapler are shown in Table5-7.Mailbox with Stapler OperationAll communication and control of the Mailbox

the left wall of the Stapling Bed. This cycle is repeated until the amount ofsheets to be stapled is reached (with a maximum of 20).Stapling CycleThe

Printer Input SourcesPaper Size SwitchesThe paper guides in Trays 2 and 3 operate four levers at the back of thetrays which activate the size sensing

Printing from Tray 1The presence of paper in Tray 1 is detected by the Tray 1 Paper PresentSensor (PS1301). The lifting plate pressurization solenoid

Paper Jam DetectionThe PIU Sensor (PS2), the Registration Sensor (PS1), the Fuser DeliverySensor (PS1403), and the Face-Down Delivery Sensor (PS1402)

Figure 5-22 General Timing Diagram (1 of 2) for LJ 5Si/5Si MX 5FunctionalOverviewFunctional Overview 5-41

Figure 5-23 General Timing Diagram (2 of 2) for LJ 5Si/5Si MX5-42 Functional Overview

6Removal and ReplacementChapter ContentsRemoval and Replacement Strategy . . . . . . . . . . . . . . . . . . . . 6-5Required Tool

Formatter Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-38Fusing Assembly . . . . . . . . .

Table 7-3 Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11Table 7-4 Image Quality . . . . . .

Motor, Transport Belt and Encoder Assembly . . . . . . . . . . . . 6-96Paper Bins and Blind Cover . . . . . . . . . . . . . .

6-4 Removal and Replacement

Removal and Replacement StrategyThis chapter documents removal and replacement of major assemblies.Replacement is generally the reverse of removal. O

Required Tools• #2 magnetized Phillips screwdriver (6-inch shaft)• Small flat-blade Screwdriver• Small pair needle-nose pliers• T-15 Torx Driver ( 6-i

User Installable AccessoriesMemory and PersonalityUpgradeCautionSIMM’s and the Formatter PCA can bedamaged by small amounts of electrostaticdischarge

Disk DriveNoteWhen the disk drive is replaced, all fonts andmacros must be re-loaded.1 The Disk Drive is mounted on the upperfront corner of the Forma

To Reinstall Disk Drive1 Locate the four disk drive mounting holeson the Formatter Assembly. Remove thedrive from the packaging and align withto the

Duplex Unit1 With the printer turned OFF andunplugged, open the Diverter door on theleft side of the printer.2 Push down the green release lever locat

Envelope Feeder1 With the printer turned OFF andunplugged, slide the Envelope Feeder upand out of the printer. 6Removal andReplacementRemoval and Repl

External Paper Handling Controller1 With the printer turned OFF and thepower cable unplugged, disconnect allinterface cables from the FormatterAssembl

1 Product InformationChapter ContentsPrinter Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3Pa

Tray 4 (2000-Sheet Input Unit) 1 With the printer turned OFF and thepower cable unplugged, disconnect allinterface cables from the FormatterAssembly a

Multi-Bin Mailbox/Mailbox With Stapler1 With the printer turned OFF andunplugged, disconnect the power andinterface cables from the Multi-BinMailbox/M

Hardware TableNoteThe screws listed in Table 6-1 are also listed in Chapter 8 with theirrespective assemblies.Example Reference Description Part Numbe

CH107 Screw, tapping, pan head, M4X10 XB4-7401-009CN Diverter Assembly, Face-UpSolenoid AssyCH108 Screw, TP, M4X6 XB6-7400-606CN 2000-Sheet Input Unit

Control Panel1 While pushing in on the side of the printer (Figure 6-2, callout 1) lift up onthe forward edge of the control panel to release the plas

CoversThere are five cover assemblies in this printer:• AC Access Cover, located at the left rear of the printer.• Back Cover, provides access to the

Back CoverNoteThe metal back cover and the plastic panel at the right rear are removed asa single unit.The square opening at the upper rear corner on

Front Cover1 Open all access doors and remove the Duplex Unit if installed.2 Open front access door and remove (3) screws, CH102 (Figure 6-5, callout

Front Cover (1 of 2)Front Cover (2 of 2)Figure 6-5Figure 6-6 6Removal andReplacementRemoval and Replacement 6-21

Left Lower CoverCautionBe careful not to damage the plastic guides on the inside of the lower leftcover. They are part of the Duplex Unit paper path.1

Recycling Toner Cartridges . . . . . . . . . . . . . . . . . . . . . . . . 1-23Related Documentation and Training Media .

Top Cover1 Remove Control Panel (see Figure 6-2), and remove (1) screw, CH102(Figure 6-8, callout 1).2 Open the Diverter Assembly access door and remo

Top Cover (1 of 2)Top Cover (2 of 2)Figure 6-8Figure 6-96-24 Removal and Replacement

Delivery Unit (for Face-Down Bin)1 Remove the following components: • Formatter Assembly (see Figure 6-24)• AC Access Cover (see Figure 6-3)• Top Cove

Delivery Unit (1 of 2)Delivery Unit (2 of 2)Figure 6-10Figure 6-116-26 Removal and Replacement

Diverter AssemblyCautionSupport the Diverter Assembly access door during this procedure to preventdamage to the plastic hinge pins.1 Open the Diverter

Door Assembly, Diverter1 Open the Diverter access door and release the support struts (Figure 6-13,callout 1) by sliding the strut ends forward and do

Door Assembly, Right Lower1 Remove the back cover assembly (see Figure 6-4).2 Remove Tray 2 and Tray 3.3 Open the Right Lower Door and release the low

Right Lower Door Assembly (2 of 3)Right Lower Door Assembly (3 of 3)Figure 6-15Figure 6-166-30 Removal and Replacement

Fan 1, Exhaust (Laser/Scanner) and HousingFan Housing1 Remove the toner cartridge.2 Remove the top cover (see Figure 6-8).3 Remove and re-route cables

Fan Motor1 Unplug the fan cable from the DC Controller PCA.2 Remove (2) screws, CH101 (Figure 6-18, callout 3), and lift the fan andbracket assembly o

Printer FeaturesFeatures LaserJet 5Si(C3166A)LaserJet 5Si MX(C3167A)LaserJet 5Si Mopier(C4076A/C4077A/C4176A)Print SpeedDuplex Speed24 ppm letter or A

Fan 2, Exhaust (LVPS)1 Remove back cover (see Figure 6-4).2 Remove the fan cable from the DC Controller PCA (Figure 6-19, callout 1).3 Remove (2) scre

Fan 3, Intake (Formatter) and HousingFan MotorNoteThe fan motor (FM3) can be removed without removing the housing assembly.1 Remove the back cover (se

Fan 4, Exhuast (Delivery Unit)1 Remove the top cover (see Figure 6-8).2 Unplug the fan cable (Figure 6-21, callout 1).3 Remove (1) screw, CH101 (Figur

Feeder Assembly1 Open the left access door and remove the Duplex Unit (if installed).2 Remove the Fuser Assembly (see Figure 6-25).3 Open the Top Cove

Feeder Assembly (1 of 2)Feeder Assembly (2 of 2)Figure 6-22Figure 6-23 6Removal andReplacementRemoval and Replacement 6-37

Formatter Assembly1 If the Formatter is to be replaced, make sure to note the page count.2 Loosen the two captive screws (Figure 6-24, callout 1) and

Setting Page Count, Maintenance Count,and Serial NumberThe page count, maintenance count, and printer serial numbers are storedin Non-Volatile Memory.

Fusing Assembly1 Open the Diverter Assembly access door and remove the Duplex Unit ifinstalled.CautionUse the upper levers to release the Fusing Assem

Laser/Scanner AssemblyCautionThe Laser Scanner diode is extremely sensitive to ESD.1 Remove the toner cartridge.2 Remove the top cover (see Figure 6-8

Main Gear Assembly1 Remove the following components in the order listed:• Toner Cartridge• Tray 1• Tray 2• Transfer Roller Assembly (see Figure 6-51)•

Paper Capacities and SizesTray 1Media Type(Feed Orientation)Dimensions Weight CapacityMaximum paper size 11.7 x 17.7 in(297 x 450 mm)Single-sided: 16-

Main Gear Assembly (1 of 3)Main Gear Assembly (2 of 3)Figure 6-27Figure 6-28 6Removal andReplacementRemoval and Replacement 6-43

Main Gear Assembly (3 of 3)Figure 6-296-44 Removal and Replacement

Main Motor Assembly1 Remove the back cover (see Figure 6-4).2 Remove the HVPS (see Figure 6-40).3 Unplug the connector (Figure 6-30, callout 1).Cautio

Paper Input Unit (PIU)CautionRemove both Tray 2 and Tray 3 to prevent damage to the PIU plastic sensorflags.1 Remove Tray 2 and Tray 3.2 Remove the ba

PCA, DC Controller1 Remove the Formatter Assembly (see Figure 6-24).2 Remove the back cover (see Figure 6-4).3 Remove the High Voltage Power Supply (s

PCA, Output Paper Sensor1 Remove the following components in the order listed:• Toner Cartridge• Formatter Assembly (see Figure 6-24)• AC Access Cover

Output Paper Sensor PCA (1 of 4)Output Paper Sensor PCA (2 of 4)Figure 6-33Figure 6-34 6Removal andReplacementRemoval and Replacement 6-49

Output Paper Sensor PCA (3 of 4)Output Paper Sensor PCA (4 of 4)Figure 6-35Figure 6-366-50 Removal and Replacement

PCA, Paper Size1 Remove the following components in the order listed:• Toner Cartridge• Trays 2 and 3• Back Cover (see Figure 6-4)• LVPS (see Figure 6

Paper Size PCA (2 of 3)Paper Size PCA (3 of 3)Figure 6-38Figure 6-396-52 Removal and Replacement

Tray 2NoteThe HP LaserJet 5Si HM (C3124A) supports 16-53 lb bond media from alltrays. However, performance in Tray 2 may not be as good with heavierme

Power Supply, High Voltage (HVPS)1 Remove the back cover (see Figure 6-4).2 Unplug the cable from the LVPS to the DC Controller PCA (Figure 6-40,callo

Power Supply, Low Voltage (LVPS)1 Remove the Formatter Assembly (see Figure 6-24).2 Remove the back cover (see Figure 6-4).3 Remove Fan 3 and its Hous

Registration Assembly1 Open the top cover door and remove the toner cartridge.2 Remove the Transfer Roller Assembly (see Figure 6-51).3 Remove the Mai

Registration Assembly (1 of 3)Registration Assembly (2 of 3)Figure 6-43Figure 6-426-56 Removal and Replacement

Registration Assembly (3 of 3)Figure 6-44 6Removal andReplacementRemoval and Replacement 6-57

Roller and Separation Pad, Tray 1Feed Roller1 Open Tray 1 door and remove the plastic shield.2 Pinch retainer tabs together (Figure 6-45, callout 1) a

Separation PadOpen Tray 1 door and remove the Feed RollerInsert a flat bladed screwdriver into the slot (Figure 6-46, callout 2) andcarefully pry the

Rollers: Tray 2 & 3, Pickup, Feed, and SeparationNoteThere are three rollers for each tray: The Pickup Roller, the Feed Roller,and the Separation

Sensor, Paper Input Unit (PS2)1 Remove the following components in the order listed:• Toner Cartridge• Trays 2 and 3• Transfer Roller (see Figure 6-51

Sensor, Registration (PS1)1 Remove the following components in the order listed:• Toner Cartridge• Trays 2 and 3• Transfer Roller (see Figure 6-51)• R

Tray 3Tray 4 (2000 Sheet Input Unit)Media Type(Feed Orientation)Dimensions Weight CapacityPaper, Letter(Landscape)8.5 x 11 in(216 x 279 mm)Single-side

Solenoid Assembly, SL3 (Face-Up)1 Remove the top cover (see Figure 6-8).2 Remove the Delivery Unit (see Figure 6-10).3 Remove (1) self-tapping screw,

Transfer Roller AssemblyCautionHandle the Transfer Roller from the ends only. Do not touch the surface ofthe Transfer Roller. Skin oils will affect it

Tray 1 Assembly1 Remove the front cover (see Figure 6-5) and the back cover (see Figure 6-4).2 Open the top cover and remove the toner cartridge.3 Ope

Tray 2/3 AssembliesNoteThe paper trays are mechanically aligned to the printer chassis at thefactory. If you are replacing Tray 2 or Tray 3 with a tr

Tray 4 (2000-Sheet Input Unit)Back Cover1 Remove (4) screws, CH108 (Figure 6-53, callout 1), and pull cover back fromthe chassis.To Reinstall:1 Make s

Left Cover1 Remove (2) screws, CH108 (Figure 6-54, callout 1).2 Pull out on the top of the cover and lift up on the right side of the cover toclear th

Right Cover1 Remove the Transfer Assembly (see Figure 6-64).2 Remove (2) screws, CH109 (Figure 6-55, callout 1).3 Release plastic retaining tab (Figur

Main Drive Assembly1 Remove the Transfer Assembly (see Figure 6-64).2 Remove the back cover (see Figure 6-53) and the right cover (see Figure 6-55).3

Paper Tray1 Remove all unused paper from the tray. 2 Remove the Transfer Assembly (see Figure 6-64).3 Remove the left cover (see Figure 6-54) and the

PCA, Controller1 Remove the back cover (see Figure 6-53) and the left cover (see Figure 6-54).2 Unplug (8) connectors from the PCA (Figure 6-58, callo

Service ManualHP LaserJet 5Si (C3166A)HP LaserJet 5Si MX (C3167A)HP LaserJet 5Si NX (C3950A)HP LaserJet 5Si HM (C3124A)HP LaserJet 5Si Mopier(C4076A/C

IdentificationModel and Serial NumbersThe model number and serial numbers are listed on identification labelslocated on the rear of the printer. The

Pickup Assembly1 Open the paper tray to the stops.2 Remove the Transfer Assembly (see Figure 6-64).3 Remove the right cover (see Figure 6-55) and the

Pickup Assembly PhotosensorsThere are three photosensors on the Pickup Assembly:• one to sense that the Transfer Assembly is closed (Figure 6-60, call

Power Supply1 Remove the back cover (see Figure 6-53) and the left cover (see Figure 6-54).2 Unplug the connector from the Power Supply (Figure 6-61,

Rollers: Pickup, Feed, and SeparationThere are three rollers in this assembly. The upper forward roller is thePickup Roller, the upper rear roller is

Switch Assembly, Paper Quantity1 Remove the back cover (see Figure 6-53).2 Open the paper tray and pull it out to the stops.3 Unplug the connector (Fi

Switch Assembly, Lifter Sensing1 Lift the printer clear of the HCI and place it on a smooth, sturdy surface.2 Remove the top cover (2 screws).3 Remove

Tray 4, Transfer AssemblyFigure 6-64 6Removal andReplacementRemoval and Replacement 6-79

Multi-Bin Mailbox/Mailbox With StaplerCoversThe procedure for removing the left and right covers is the same.1 Using a small flat-blade screwdriver, r

Delivery Head Assembly1 Remove the left cover (see Figure 6-65).2 Remove all paper bins and the blind cover (see Figure 6-86) or the staplingunit (see

Multi-Bin Mailbox/Mailbox with Stapler, Delivery Head Mounting ScrewsMulti-Bin Mailbox/Mailbox with Stapler, Delivery Head Pulley Detail Figure 6-67Fi

SpecificationsThis section contains information on physical and electrical characteristicsof the printer. For information on the printer site and env

Flipper Assembly1 Remove all paper bins and the blind cover (see Figure 6-86).2 Remove the Left and Right Covers (see Figure 6-65).3 Remove the Delive

Multi-Bin Mailbox/Mailbox with Stapler, Flipper Assembly Mounting Screws Multi-Bin Mailbox/Mailbox with Stapler, Flipper Assembly Ground WireFigure 6-

Input Paper Guide1 Remove the paper bins and the blind cover (see Figure 6-86).2 Open the Jam Access Door and disconnect the ground wire from the bott

Interlock Switch1 Remove the left cover (see Figure 6-65).2 Disconnect (2) wires from the Interlock Switch (Figure 6-73, callout 1).3 Press the retain

Jam Access Door Assembly1 Remove the left and right covers (see Figure 6-65).2 Remove the Delivery Head Position Motor (see Figure 6-82).3 Remove all

Multi-Bin Mailbox/Mailbox with Stapler, Jam Access Door Springs Multi-Bin Mailbox/Mailbox with Stapler, Jam Access Door E-Clip NoteFigure 6-76 with ca

Multi-Bin Mailbox/Mailbox with Stapler, Jam Access Door String ConnectionFigure 6-76 6Removal andReplacementRemoval and Replacement 6-89

Lower Elevator Pulley Assemblies1 Remove all paper bins and the blind cover (see Figure 6-86).2 From the front of the unit, disconnect (2) tension spr

Multi-Bin Mailbox/Mailbox with Stapler, Elevator Pulley Tension Spring Multi-Bin Mailbox/Mailbox with Stapler, Pulley Housing ReleaseFigure 6-77Figure

Metallic Tape and Housing Assembly1 Remove all of the paper bins, and the blind cover (see Figure 6-86).2 Lower the Delivery Head to the bottom of the

Volts Freq Amps* Watts (typical)Printer120 Vac ± 10%100 Vac ± 10%50/60 Hz ± 2 Hz50/60 Hz ± 2 Hz13.5 @120vprinting = 500standby = 135PowerSave Mode Las

Multi-Bin Mailbox/Mailbox with Stapler, Metallic Tape Retaining PinMulti-Bin Mailbox/Mailbox with Stapler, Metallic Tape ReleaseNoteFigure 6-81 with c

Multi-Bin Mailbox/Mailbox with Stapler, Metallic Tape HousingFigure 6-816-94 Removal and Replacement

Motor, Delivery Head Position1 Remove the left cover (see Figure 6-65).2 Unplug the cable connector (Figure 6-82, callout 1).3 Remove (2) screws, CH11

Motor, Transport Belt and Encoder Assembly 1 Remove the left cover (see Figure 6-65).2 Remove all paper bins and the blind cover (see Figure 6-86).3 R

Multi-Bin Mailbox/Mailbox with Stapler, Transport Belt Drive GearMulti-Bin Mailbox/Mailbox with Stapler, Transport Belt EncoderFigure 6-84Figure 6-85

Paper Bins and Blind CoverThe procedure for removing the paper bins and the blind cover is the same.Each bin rests in its labeled slot. 1 Remove the

PCA, Controller1 Remove all paper bins and the blind cover (see Figure 6-86).2 Lay the Multi-Bin Mailbox/Mailbox With Stapler over onto its right side

Strings, Anti-CurlThe Anti-Curl Strings are attached to the Jam Access Door Assembly at thetop of the frame, routed through small pulleys at the back

Multi-Bin Mailbox/Mailbox with Stapler, Anti-Curl String Upper ConnectionMulti-Bin Mailbox/Mailbox with Stapler, Anti-Curl String Middle ConnectionFig

Stapling Unit AssemblyThe Stapling Unit Assembly is mounted in the Mailbox with Stapler,replacing the three top output bins.1 Turn OFF the printer. 2

Operation position (per ISO 9296) Printer (stand alone)Printer System* Printing LPA dB(A) 54 db 56 db Standby LPA dB(A) 42 db 42 dbBystander 1m (per I

Back Plate1 Remove the Stapling Unit Assembly (see Figure 6-91).2 Remove the Scan Bar by carefully pressing the tab on the scan barbackwards and downw

Figure 6-936-104 Removal and Replacement

Stapling Unit Controller PCA1 Remove the Stapling Unit Assembly (see Figure 6-91).2 Remove the Back Plate (see Figure 6-92).3 Remove (2) screws locate

Figure 6-95Figure 6-966-106 Removal and Replacement

Top Cover Assembly1 Remove the Stapling Unit Assembly (see Figure 6-91).2 Open the Top Cover Assembly and remove the Back Plate (see Figure 6-92).3 Un

Stapling Bed Assembly1 Remove the Stapling Unit Assembly (see Figure 6-91).2 Remove the Back Plate (see Figure 6-92).3 Remove the Stapler Unit Control

Hinges1 Remove the Stapling Unit Assembly (see Figure 6-91).2 Remove the Top Cover Assembly (see Figure 6-97).3 Remove the Stapling Bed Assembly (see

6-110 Removal and Replacement

7TroubleshootingChapter ContentsTroubleshooting Process . . . . . . . . . . . . . . . . . . . . . . . . . . 7-3Power-On .

Troubleshooting Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-77 Paper Jams . . . . . . . .

Media Selection GuidelinesNoteMore detailed specifications are in the HP LaserJet 5Si and 5Si MX User’sGuide, and the HP LaserJet Printer Family Paper

Troubleshooting ProcessThe troubleshooting process is a systematic approach that addresses themajor problems first and then other problems as you iden

Figure 7-1 HP LaserJet 5Si / 5Si MX / 5Si Mopier Troubleshooting Process7-4 Troubleshooting

Figure 7-2 HP LaserJet 5Si / 5Si MX / 5Si Mopier Troubleshooting Process7 TroubleshootingTroubleshooting 7-5

Power-OnOverviewIt is important to have the printer’s Control Panel functional as soon aspossible in the troubleshooting process so that the printer’s

Fan Location and AirflowNoteWhen the printer is in PowerSave mode, the fans are off.Fan Number Fan NameFan Location1 Laser/Scanner fan Exhaust air fl

Engine TestThe engine test verifies that the print engine is functioning correctly. TheFormatter PCA is completely bypassed during an engine test. Thi

DisplayOverviewUse the printer’s Control Panel to access the error log to troubleshoot theprinter. With the printer’s test menu, you can access the pr

ConfigurationUse the configuration pages to verify the proper installation of accessories,options, and personalities. When you print the configuration

Device Action if installed and not detectedDuplex Unit Power-off, reseat, verify connector is not broken, then replaceduplex cable and/or duplex unit

Configuration Page Illustration and KeyConfiguration Page ExampleThe default S/N isAAXXYY99999. To set the correct S/N, refer to theSERVICE MODE proce

Adhesive LabelsUse the following guidelines when selecting labels: CautionTray 1 is required for printing adhesive labels.Print labels to the Face-Up

Menu Page ExampleMenu Page ExampleFigure 7-67 TroubleshootingTroubleshooting 7-13

Communications Link (C-Link) Cables Communications Link (C-Link)Cables, Supported Daisy Chain ConnectionsAll C-Link cables have a single dot molded i

Image QualityWhen you are working with customers, obtain a print sample before youbegin troubleshooting their printer. Ask the customer to explain the

Check the Toner CartridgeImage formation defects are often the result of toner cartridge problems. Ifthere is any doubt, always replace the toner cart

Error LogUse the error log to diagnose and troubleshoot printer errors andintermittent failures. Also, you can use "Show Error Log" under &

Whenever a 13.xx appears on the Control Panel, a good practice is to clearall the paper from the printer, take the printer offline, and print the erro

CommunicationAsk the customer to run a print job from the host system. If the print job issuccessful, proceed to the following step, “Verification.”Ve

• The "Novell Status" block should state the Novell printer server name towhich the printer is connected. If the node name reads "NPIx

VerificationPaper Path Test Using the error trend information from Step 5 (Error Log), you may verify aspecific printer paper path with the paper path

Paper Path Test Source and Output SelectionCustomer Print Job Ask the customer to send a print job from the problem source(s) to theproblem destinatio

Storing Print MediaFollow these guidelines when stacking and storing print media:• Store paper in its ream wrapper until ready to use.• Re-wrap partia

ReferenceControl Panel Messages and Errors Printer messages displayed on the control panel provide five categories ofinformation. Each message categor

Error Log TableMessage ErrorLogCategory/ MessageDescription RecommendedActionACCESS DENIED Status After an attempt to select a locked-outfunction, thi

Clearing Staple JamsScanbar and MBM Interlock Switch (SW1).1 and 2 - Scanbar gaps. 3 - Multi-Bin Mailbox Interlock SwitchFigure 7-11Figure 7-12"

Message ErrorLogCategory/ MessageDescription RecommendedActionENGINE TEST Status This message displays after the engine testbutton is pressed and indi

High-Voltage Power Supply Contacts1. Primary Charging Roller Connector2. Toner Registration/Toner Sensor3. Developing Roller Bias Connector4. Drum Gro

Message ErrorLogCategory/ MessageDescription RecommendedActionHP MIO 2 NOT READY Status The lower MIO card is not ready. One of twosituations may occu

Message ErrorLogCategory/ MessageDescription RecommendedActionLOAD TRAY X or LOADENV FEEDER <mediatype> <paper size> AttendanceRequiredThe

Message ErrorLogCategory/ MessageDescription RecommendedActionOUTPUT OPERATIONCONDITION x.yyAttendanceRequiredAn external output device has a conditio

Message ErrorLogCategory/ MessageDescription RecommendedActionPROCESSING JOB FROMTRAY xStatus The printer is processing data from the activeI/O channe

Message ErrorLogCategory/ MessageDescription RecommendedActionSTAPLER LIMIT REACHED AttendanceRequiredThe stapler has reached its maximum of 20sheets

Product OverviewExternal View of HP LaserJet 5Si/5Si MX/NXand Mopier EngineHP LaserJet 5Si/5Si MX/NX and Mopier Engine - Front and Right Side Viewwith

Tray 2 (1) and Tray 3 (2) Paper Out FlagsVertical Transfer Door Closed Sensor (PS35)(1.) PS35 Vertical Transfer Door Switch (2.) Drive Gear (3.) Ver

Message ErrorLogCategory/ MessageDescription RecommendedActionTRAY 4 EMPTY Status Tray 4 is empty or not lifting. Under normaloperating conditions, w

Message ErrorLogCategory/ MessageDescription RecommendedActionWARMING UP Status The Fuser is warming up and the printer isnot ready. It may be necess

Sensor Flag Locations Along the Paper PathFigure 7-16PS31 Tray 4, Transfer Door Registration Photsensor PS32 Tray 4, Transfer Door Paper Jam Pho

General Paper Path TroubleshootingPaper jams occur in the printer when paper does not either reach or clear aphotosensor along the printer’s paper pat

Message ErrorLogCategory/ MessageDescription RecommendedAction13.0 PAPER JAM CLEARPRINTERAttendanceRequiredPaper is jammed somewhere in the paperpath,

Message ErrorLogCategory/ MessageDescription RecommendedAction13.x PAPER JAM(Continued) 13.0 13.1

Message ErrorLogCategory/ MessageDescription RecommendedAction13.x PAPER JAM(Continued) 13.7 13.8

Message ErrorLogCategory/ MessageDescription RecommendedAction13.x PAPER JAM(Continued) 13.13 13.1413.10.03through1

Message ErrorLogCategory/ MessageDescription RecommendedAction13.11 PAPER JAM ErrorMessage13.27.11A paper jam occurred at the Vertical TransferAssem

External View of HP LaserJet 5Si MopierHP LaserJet 5Si Mopier - Front and Right Side View with Tray 1 Open1 Left Output Bin2 Control Panel3 Top Output

Flipper Assembly and Paper Sensor Flags (Multi-Bin Mailbox)1. PS Face Up 2. PS Face Up Full 3. PS Entry SensorPaper Sensor Exit1. PSExit1 - De

Message ErrorLogCategory/ MessageDescription RecommendedAction13.11 PAPER JAM ErrorMessage13.59.11A paper jam occurred at Vertical TransferAssembly ex

Mailbox Motor and Encoder Disk (callout 1)Stapler Unit1. Offset Pusher 2. Exit Flap3. Registration Pusher 4. Slider Arms

Message ErrorLogCategory/ MessageDescription RecommendedAction13.12 PAPER JAM ErrorMessage13.03.32A paper jam occurred along the TransportBelt. When

Message ErrorLogCategory/ MessageDescription RecommendedAction13.12 PAPER JAM ErrorMessage13.07.72 A paper jam occurred in the input guide. Theinput g

Message ErrorLogCategory/ MessageDescription RecommendedAction13.12 PAPER JAM ErrorMessage13.12.03A slider jam occurred. The slider arms arestuck or s

Message ErrorLogCategory/ MessageDescription RecommendedAction21 PRINT OVERRUN DATALOSTErrorMessageThe data (dense text, rules, raster or vectorgraphi

Message ErrorLogCategory/ MessageDescription RecommendedAction31.1.1 DISK NOTINITIALIZEDErrorMessage31.01.01An optional disk accessory is not properly

Message ErrorLogCategory/ MessageDescription RecommendedAction51.x ERROR CYCLEPOWERServiceMessage51.01.00A laser subsystem problem exists. x = 1: Beam

Message ErrorLogCategory/ MessageDescription RecommendedAction55.xx ERROR PRESSSELECT KEYServiceMessage55.xx.00A printer command error occurred, which

Formatter AssembliesRear and Left Side View1 Formatter Printed Circuit Assembly2 Hard Disk Accessory Location (optional for LJ 5Si/5Si MX/5Si NX andst

Message ErrorLogCategory/ MessageDescription RecommendedAction58.x PRINTER ERRORCYCLE POWERServiceMessage58.01.0058.02.0058.03.0058.04.00The tray lift

Message ErrorLogCategory/ MessageDescription RecommendedAction62.x PRINTER ERRORCYCLE POWERServiceMessage62.0x.00The printer encountered a problem whe

Message ErrorLogCategory/ MessageDescription RecommendedAction66.1.1 DEVICE ERRORCYCLE POWERServiceMessage66.01.01Feed Motor malfunction. The 2000-She

Message ErrorLogCategory/ MessageDescription RecommendedAction66.2.1 DEVICE ERRORCYCLE POWERServiceMessage66.02.01Home reference is not found. During

Delivery Head Exit Roller1. Exit Roller. 2. Guide Fingers.Multi-Bin MailboxFigure 7-21Figure 7-227 TroubleshootingTroubleshooting 7-5

Message ErrorLogCategory/ MessageDescription RecommendedAction66.2.3 DEVICE ERRORCYCLE POWERErrorMessage66.02.03Delivery Head rollers are not sliding.

Message ErrorLogCategory/ MessageDescription RecommendedAction66.2.14 DEVICE ERRORCYCLE POWER ErrorMessage66.02.14Multi-Bin Mailbox C-Link is not resp

Tray 4 Cavity1. Paper Quantity Switches 2. Lifter Safety Switch (SW31)3. Paper Surface Sensor Flag (SW34) 4. Tray 4 Paper Out Flag (S

Message ErrorLogCategory/ MessageDescription RecommendedAction68 NVRAM FULL CHECKCONFIGURATIONServiceMessageThe non-volatile memory (NVRAM) is full. P

Message ErrorLogCategory/ MessageDescription RecommendedAction79 SERVICE (xxxx) CALLSERVICECatastrophicSystemMessageAn unrecoverable firmware error oc

© CopyrightHewlett-Packard Company1997All Rights Reserved.Reproduction, adaptation, ortranslation without priorwritten permission isprohibited, except

Accessories and OptionsThe accessories and optional equipment for the LaserJet 5Si, 5Si MX, and5Si NX printers are shown in Figure 1-5 and described i

Image Formation TroubleshootingCheck the Toner CartridgeImage formation defects are often the result of toner cartridge problems. Ifthere is any doub

Image Quality TablesPossible Cause Recommended ActionOCCASIONAL BLANK PAGES: 1. Software Configuration. Make sure the application software is notsen

Possible Cause Recommended Action1. Defective toner cartridge. Replace the toner cartridge.2. Light is leaking into the printer. Ensure all covers ar

Possible Cause Recommended Action1. Toner supply is low. Shake the cartridge gently to redistribute thetoner, or replace the cartridge.2. Print Dens

Possible Cause Recommended Action1. Single sheet of paper defective. Try reprinting the job.2. Paper does not meet specs. The papermoisture content,

Possible Cause Recommended Action1. Paper does not meet specs. The moisturecontent, conductivity, or surface finish of the mediabeing printed may not

Possible Cause Recommended Action1. Toner cartridge is damaged. If the defectrepeats at any of the following intervals and inthe direction of paper m

Possible Cause Recommended Action1. Paper surface too rough. Toner migrates tolow spots, leaving higher areas void.Turn EconoMode OFF. Use paper with

Possible Cause Recommended Action1. Paper is loaded incorrectly. If the paper is notinstalled flush into the paper tray, a skewingproblem will result

Possible Cause Recommended Action1. Page too complex. The printer can not createthe image fast enough to keep pace with theprint engine. Set Page Pro

Accessory/Option Part/Product Number DescriptionToner Cartridge C3909A Replacement toner cartridge.Stapler Cartridges C3772A 3-pack of staple cartrid

Figure 7-25 Repetitive Defect Ruler 7Troubleshooting 7-73

Image System TroubleshootingHalf Self Test Functional CheckThe electrophotographic process can be subdivided into the following stages:• Cleaning (rem

Drum Rotation Functional CheckThe photosensitive drum, located in the toner cartridge, must rotate for theprint process to work. The photosensitive dr

High-Voltage Power Supply CheckThe High-Voltage Power Supply PCA provides the necessary voltages forthe electrophotographic processes. A method for ve

Troubleshooting ChecksPaper JamsPaper jams occur most often when:• Paper trays are not correctly loaded. Make sure the paper is loaded withthe arrow

Figure 7-27 shows the possible locations for most of the paper jams.Paper Path Jam Locations1. Toner cartridge area 6. Front Door2. Tray 1 pick-up rol

Clearing Paper JamsNote:Open and close all printer covers to clear the paper jam message. Afterremoving a sheet of paper, you may need to check other

General Troubleshooting InformationMiscellaneous Problems and Solutions The following lists symtoms and typical solutions to those problems.Abnormal n

Excessive Image Skew1 Remove and reseat paper fences (front fence in paper trays).2 Image Skew Specifications:• 1 mm over 260 mm length• First line to

Print Voids on pages after coming out of POWER SAVE mode.Turn POWER SAVE off (POWER SAVE is an item under theCONFIGURATION MENU) and retry.Jams when p

Hard Disk The Printer Hard Disk accessory is optional for the HP LaserJet 5Si, 5SiMX, and 5Si NX printers. The hard disk is a standard feature of the

Wrinkling Envelopes1 Place Fusing Levers in UP position and retry envelopes.2 Try new media. Verify Envelopes are within specifications. See LaserJet

If the paper path test works, it may be a software oruser related issue. Perform the following steps:1 Define the media types which are loaded in each

CautionDo not make changes to the driver unless the application does not providethis option. Print job settings selected through your application alwa

DiagramsThis section contains the following diagrams:• Printer Sensors and Switches• Printer Motor, Clutches, and Solenoids• DC Controller Inputs and

Figure 7-28 Printer Sensors and Switches (Print Engine Only) 7TroubleshootingTroubleshooting 7-87

Figure 7-29 Printer Motor, Clutches, and Solenoids7-88 Troubleshooting

Figure 7-30 DC Controller Inputs and Outputs (1 of 5) 7TroubleshootingTroubleshooting 7-89

Figure 7-31 DC Controller Inputs and Outputs (2 of 5)7-90 Troubleshooting

Figure 7-32 DC Controller Inputs and Outputs (3 of 5) 7TroubleshootingTroubleshooting 7-91

Figure 7-33 DC Controller Inputs and Outputs (4 of 5)7-92 Troubleshooting

If you are a PostScript language programmer, refer to Adobe’s PostScriptLanguage Reference Manual for information about downloading forms andpatterns

Figure 7-34 DC Controller Inputs and Outputs (5 of 5) 7TroubleshootingTroubleshooting 7-93

Figure 7-35 Printer Main Wiring Diagram7-94 Troubleshooting

Figure 7-36 2000-Sheet Input Unit Controller PCA Inputs 7TroubleshootingTroubleshooting 7-95

Figure 7-37 2000-Sheet Input Unit Controller PCA Outputs7-96 Troubleshooting

Figure 7-38 2000-Sheet Input Unit Main Wiring Diagram 7TroubleshootingTroubleshooting 7-97

12345678910VccVccVcc123123412123451716151413121110987654321previousdeviceconnector(in)CLINKnextdeviceconnector(out)CLINKpowersupplyconnector(one dot)(

Figure 7-40 Stapling Unit Controller PCA Main Wiring Diagram 7TroubleshootingTroubleshooting 7-99

7-100 Troubleshooting

8Parts and Diagrams Chapter ContentsHow to Use the Part Lists and Diagrams . . . . . . . . . . . . . . . . . 8-3Ordering Parts . .

8-2 Parts and Diagrams

Service Approach Repair of the printer normally begins with a three-step process:• Step 1: Isolate the problem to the major system, i.e. the host com

How to Use the Part Lists and DiagramsThe figures in this chapter illustrate the major subassemblies in the printerand their component parts. A table

Accessories and SuppliesThe accessories, supplies, and parts listed in Chapter 1 and in the followingpages are available through your local authorized

Illustrations and Parts ListsThe following illustrations and their assorted parts tables list the fieldreplaceable components for this printer. Where

Figure 8-1a LJ 5Si Family Printer and Paper Handling Components8-6 Parts and Diagrams

Figure 8-1b LJ 5Si Mopier Family and Paper Handling Components8Parts andDiagramsParts and Diagrams 8-7

Ref Description/Product Number Part Number Exchange /Service Number QTY01 Formatter Assembly C3168-6790501A Formatter Assembly, Exchange C3168-6

Ref Description/Product Number Part Number Exchange /Service Number QTYnot shown C-Link Cable Assembly 178 cm (HCI to MBM) C3764-70000not shown C-Lin

Figure 8-2 Printer Covers and Doors8-10 Parts and Diagrams

Ref Description Part Number QTY01 Left Access Door RB1-6667-000CN 102 Left Access Door Struts RF5-1440-000CN 203 Hinge Plate RB1-6507-000CN 104 Label,

Figure 8-3 Printer Internal Components (1 of 4)8-12 Parts and Diagrams

ConsumablesThe printer has two consumables, the toner cartridge and staple cartridges,which may be ordered directly from Hewlett-Packard. Refer to Ch

Ref Description Part Number QTY01 Transfer Guide Bushing RB1-6441-000CN 202 Transfer Guide RF5-1394-000CN 103 Transfer Roller RF5-1412-000CN 105 Dampe

Figure 8-4 Printer Internal Components (2 of 4)8-14 Parts and Diagrams

Fig Ref Description Part Qty8-04 A Diverter Assembly RG9-1150-000CN8-04A 11 Diverter Drive Assembly RF5-1441-000CN 18-04A 16 20T Gear RS5-0758-000CN 1

Figure 8-5 Printer Internal Components (3 of 4)8-16 Parts and Diagrams

* LaserJet 5Si HM (C3124A) only.Ref Description Part Number QTY06 Laser / Scanner Assembly RG5-1895-000CN 106A Laser / Scanner Assembly, Exchange C316

Figure 8-6 Printer Internal Components (4 of 4)8-18 Parts and Diagrams

Ref Description Part Number QTY02 Fuser Cable 1 RG5-1849-000CN 103 Fuser Cable 2 RG5-1850-000CN 104A Low Voltage Power Supply, 110-120V RG5-1876-000CN

Figure 8-7 2000-Sheet Input Unit Internal Components8-20 Parts and Diagrams

Ref Description Part Number QTY01 2000-Sheet Input Tray Assembly RG5-2155-000CN 102 Front Cover RF5-1632-000CN 103 Right Cover RB1-7832-000CN 104 Left

Figure 8-8 2000-Sheet Input Unit Internal Components8-22 Parts and Diagrams

Refilled Toner Cartridges & Non-HP StapleCartridges While Hewlett-Packard does not prohibit the use of refilled toner cartridgesand non-HP staple

Ref Description Part Number QTY01 Paper Deck PCA RG5-4198-000CN 102 Paper Sensor PCA RG5-2225-000CN 103 Paper Size PCA RG5-2226-000CN 104 Adjustable T

Figure 8-9 Multi-Bin Mailbox/Mailbox with Stapler Components (1 of 3)8-24 Parts and Diagrams

Ref Description Part Number QTY01 Top Cover C3764-60555 102 Spacer, plastic C3764-60524 103 Right Cover C3764-60553 104 Power Supply Assembly 0950-292

Figure 8-10 Multi-Bin Mailbox/Mailbox with Stapler Components (2 of 3)8-26 Parts and Diagrams

Ref Description Part Number QTY01 Flipper Assembly (no cable) C3764-60501 102 Mounting Shaft (Hex) C3764-60516 103 Jam Access Door Assembly C3764-6051

ΗΕΩΛΕΤΤΑβχδεφγονεδεαδ ονεανγβλδκε ονεανδβδελδ ονεανδκφδβλ ονεονεδκσλσ ονεονεδκλλσλ ονεονδεδσκσ πµνFigure 8-11 Multi-Bin Mailbox/Ma

Ref Description Part Number QTY01 Left Cover C3764-60554 102 Delivery Head Position Motor C3764-60507 103 Cable, Delivery Head Position Motor to Contr

1234Figure 8-12 Stapling Unit Internal Components8-30 Parts and Diagrams

Ref Description Part Number QtyStapling Unit Assembly C3766-60500 1Exchange Stapling Unit C3766-69500 11Top Cover Assembly C3766-60501 12 Stapling Bed

8-32 Parts and Diagrams

Related Documentation and Training MediaTable 1-11 lists where to order related documentation. See “OrderingParts” earlier in this chapter for the ph

AParts IndexParts Index A-1

Alphabetical Parts IndexDescription Product/Part No. Fig. Ref.2000-Sheet Input Unit (Tray 4) C3763A 8-01 072000-Sheet Input Tray Assembly RG5-2155-000

Description Product/Part No. Fig. Ref.Cable Assembly RG5-1924-000CN 8-02 22Cable Holder, Edge C3764-60566 8-11 06Cable Holder, Flat C3764-60513 8-11 0

Description Product/Part No. Fig. Ref.Diverter Assembly RG9-1150-000CN 8-02 30Diverter Drive Assembly RF5-1441-000CN 8-04A 11Duplex Unit C3762A 8-01

Description Product/Part No. Fig. Ref.Front Door Latch XZ9-0379-000CN 8-02 10Front Panel ( Control Panel Display) RG5-2433-000CN 8-02 19Fuse, LVPS, 11

Description Product/Part No. Fig. Ref.Laser / Scanner Assembly RG5-1895-000CN 8-05 06Laser / Scaner Assembly, Exchange C3166-69006 8-05 06ALeft Access

Description Product/Part No. Fig. Ref.Overlay, Swedish C3166-40007 not shownOverlay, Danish C3166-40008 not shownOverlay, Finnish C3166-40009 not show

Description Product/Part No. Fig. Ref.Pickup Roller RF5-1427-000CN 8-04E 21Pickup Roller RF5-1427-000CN 8-07 53PIU PCA RG5-1860-000CN 8-04E 103Plate G

Description Product/Part No. Fig. Ref.Screw, TP, M3X6 (fixed shoulder) XA9-0267-000CN 8-03 CH101Screw, TP, M3X6 (fixed shoulder) XA9-0267-000CN 8-05 C

Description Product/Part No. Fig. Ref.Torque Limiter RB1-6588-000CN 8-04E 10Torque Limiter RB1-6588-000CN 8-07 54Transfer Guide RF5-1394-000CN 8-03 02

Technical Assistance HP ASAP (Automated Support Access Program) provides free technicalsupport information 24 hours a day, 7 days a week. The ASAP s

Numerical Parts IndexPart No. Description Fig. Ref.0950-2927 Power Supply Assembly 8-09 04C2009-00006 MIO Coverplate 8-01 14C2930A Tray 3 8-01 09C2931

Part No. Description Fig. Ref.C3764-60505 Face Up Bin 8-09 11C3764-60507 Delivery Head Position Motor 8-11 02C3764-60513 Cable Holder, Flat 8-11 07C37

Part No. Description Fig. Ref.C3764-60564 Pulley, small 8-10 14C3764-60565 Cable Holder, Round Gasket 8-11 04C3764-60566 Cable Holder, Edge 8-11 06C37

Part No. Description Fig. Ref.C3766-69500 Exchange Stapling Unit 8-12 not shownC3766-69500 Stapling Unit Exchange 8-09 12C3766-69515 Exchange Mailbox:

Part No. Description Fig. Ref.RB1-6558-000CN Sensor Arm Spring 8-04E 49RB1-6588-000CN Torque Limiter 8-04E 10RB1-6588-000CN Torque Limiter 8-07 54RB1-

Part No. Description Fig. Ref.RF5-1623-000CN Adjustable Size Plate: Front 8-07 69RF5-1632-000CN Front Cover 8-07 02RG5-1833-040CN Registration Assembl

Part No. Description Fig. Ref.RG5-1924-000CN Cable Assembly 8-05 18RG5-1925-000CN Scanner Motor Cable 8-05 19RG5-1926-000CN BD Cable 8-05 20RG5-1927-

Part No. Description Fig. Ref.RS5-1207-020CN Bushing, Plastic 8-07 65RS5-2463-000CN Compression Spring, Front 8-04D 14RS5-2466-000CN Compression Sprin

BI/O InformationIEEE 1284 Parallel Cable InformationThe IEEE 1284 parallel interface is compatible with Centronics parallelinterfaces. To take advant

Parallel Cable Pin Configuration For best results, use the C2951A cable, or equivalent. CautionEnsure that all power and interface cables on the print

HP CompuServe ForumCompuServe members can download a variety of support materialsincluding product data sheets, software application notes, and printe

Connecting to LocalTalk NetworksThe printer does not come with a LocalTalk network cable. Use a standardLocalTalk network cable and connector kit, su

Connecting to the MIDDLE of a LocalTalkNetworkConnecting to the MIDDLE of a LocalTalk Network (1 of 2)1 Disconnect the printer from its power source.

Connecting to a Network.The printer supports up to four different cables: IEEE 1284 parallel, (FigureB-5, callout 1), BNC (ThinLAN) (Figure B-5, callo

DIN-8 (LocalTalk) InterfacePlug the end of the DIN-8 cable into the LocalTalk port on the HP JetDirectcard. NoteIf you are using only the LocalTalk po

Configuring Novell NetWare Frame Type Parameters.Normally selecting a NetWare frame type is not required. The HPJetDirect card automatically selects

Configuring TCP/IP ParametersThe HP JetAdmin utility for UNIX (sold separately) may be used toconfigure TCP/IP parameters. If you do not have the HP

Configuring Apple EtherTalk Phase ParameterTo configure EtherTalk parameters:1 If you do not want to configure the phase parameter, Press [On Line]. 2

Disable Network Protocols (Optional).1 Press [On Line] to take the printer offline.2 Press [Menu] repeatedly until MIO MENU appears.3 Press [Item]. CF

CRegulatory Information Laser Safety (U.S.A.) The Center for Devices and Radiological Health (CDRH) of the U.S. Foodand Drug Administration implemente

Laser Statement (Finland) The following applies to printer operation and servicing in Finland. LASERTURVALLISUUSLUOKAN 1 LASERLAITEKLASS 1 LASER APPAR

ConventionsThis manual uses the following conventions:The names of major printer parts and assemblies are Capitalized.Color is used to emphasize items

WarrantyThis warranty entitles you to standard warranty services for your printerand accessories and is available from HP worldwide. However, there m

Toner Safety Note In case of toner spills, skin and clothing are best cleaned by removing asmuch toner as possible with a dry tissue, then washing wit

FCC RegulationsThis equipment has been tested and found to comply with the limits for aClass B digital device, pursuant to Part 15 of the FCC rules. T

DECLARATION OF CONFORMITYaccording to ISO/IEC Guide 22 and EN 45014Manufacturer’s Name: Hewlett-Packard CompanyManufacturer’s Address: 11311 Chinden B

C-6 Regulatory Information

Index!2000-sheet input unitcomponents 5-23operation 5-26see "tray 4 " 6-67Aac access cover 6-19ac power distribution5-6accessoriesuser insta

FIRST) 1-25features 1-3control panel 1-3feed rollertray 1 6-58tray 2 6-60tray 3 6-60feeder assembly 6-37fontsinternal 1-3formatter assembly6-39formatt

overhead transparencyspecifications 1-12overvoltage protection5-6Ppage countsetting 3-21, 6-40verification 3-19page usage, monthly 1-3paper capacities

rollerstray 1 6-58tray 2 6-60tray 3 6-60Ssaving menu selections3-8scanner drive 5-10scanner motor 5-11scanner/laser assembly6-42screwdrivers 6-6screws

Copyright© 1997Hewlett-Packard Co.Printed in USA 7/97Manual Part No.C4077-90960HP LaserJet 5Si FamilyPrinters Service ManualEnglishHP LaserJet 5Si Fa

NoteThe use of non-Hewlett-Packard toner cartridges alone does not affect eitheryour warranty or any maintenance contract you may have purchased.Howev

2Site Requirements Chapter ContentsOperating Environment . . . . . . . . . . . . . . . . . . . . . . . . . . 2-3Space Requi

2-2 Site Requirements

Operating EnvironmentThe electrical specifications listed in Chapter 1 must be maintained toensure proper operation of this printer. Consider the fol

Space Requirements Printer Space Requirements1 Top view2 Side viewEnvironmental RequirementsKeep the printer within the following environmental condit

3Operating OverviewChapter ContentsUsing the Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 C

3-2 Operating Overview

Using the Control PanelControl Panel LayoutThe control panel consists of a 2-line, 20-character per line display panel,five keys, and three indicator

Indicator LightsThe control panel indicator lights are described in the following table. Thecolumn labeled “Do this:” includes an action only when an

Chapter Descriptions1 Product InformationContains printer features and product overview, tray capacities andsizes, media specifications, service appro

Settings and DefaultsThe printer makes most printing decisions based on either temporarysettings or factory (permanent) defaults.NoteSettings you send

Restoring Factory DefaultsCautionIf possible, print a PCL Configuration Page prior to performing a ColdReset. This will document current settings for

Menu Item Default SettingDISPLAY LANGUAGE= ENGLISHPAPER DESTINATION= TOP OUTPUT BINPAPER SIZE= LETTER or A4PAPER TYPE= PLAINENVELOPE FEEDER SIZE= COM1

Heavy Media Fuser Mode ExplanationThe LaserJet 5Si HM (Heavy Media) provides users the capability toenhance toner adhesion for heavier media. The fuse

STDPAPERHEAVYPAPER1HEAVYPAPER2CARDSTOCK1CARDSTOCK2CARDSTOCK3Typical copy/bond paper,labels, envelopes, andtransparencies.Supports 20-28 lb Bondmedia.H

Control Panel MenusPress [Menus] to cycle through the control panel menus. Each menu isdescribed in a separate table in this section. Table 3-5 provi

NoteShaded items appear only if the associated option or function is activated.TRAYMENUJOB CONTROLMENUTESTMENUCONFIGURATIONMENUPRINT QUALITYMENUSee Ta

Tray MenuAsterisk (*) indicates printer default.Shaded menu items appear only if associated option or function is activated.Tray Menu Items Item Choic

Job Control MenuThe items available in the Job Control Menu can also be changed throughsoftware applications if an appropriate printer driver is insta

Test MenuTest Menu items can be selected only from the printer control panel. Youcannot change or override them from your software application. See“Te

B I\O InformationContains basic cabling and configuration information for connecting theprinter to supported networks.C Regulatory InformationContains

Configuration MenuThis menu contains the items for Personality, Resource Saving and Memorysetup. Depending on how the printer is configured, any combi

Asterisk (*) indicates printer default.Shaded menu items appear only if associated option or function is activated.Configuration MenuItemsItem Choices

Print Quality MenuAsterisk (*) indicates printer default.** Only with HP LaserJet 5Si Heavy Media printersPostScript MenuAsterisk (*) indicates printe

PCL MenuPCL Menu Items Item Choices Action RequiredSOURCE= INTERNAL * Press [+] to display choice.Press [Select] to activate choice.NUMBER= 0..52 (0 *

I/O MenuCautionWhen changing memory configuration (Configuration Menu) or I/OBuffering, the printer will automatically reset. All fonts, macros, andd

MIO 1 and 2 MenusNoteItems displayed depend upon the MIO card that is installed in the printer.MIO 1 and 2 Menu Items Item Choices Action RequiredItem

Service ModeThe Service Mode should be used only by authorized service personnel.While in Service Mode, you can:• Verify and set the Page Count and se

Service Mode MenuItemsItem Choices Actions RequiredPAGECOUNT= nnnnnnn Displays total number of pages printed by the printer.Press [+] to step through

Setting Page Count, Maintenance Count,and Serial NumberThe page count, maintenance count, and printer serial numbers are storedin Non-Volatile Memory.

Setting the Cold Reset Default Paper SizeWhen replacing a Formatter PCA with a default paper size setting of A4,set COLD RESET PAPER= to A4. 1 Enter t

List of FiguresFigure 1-1 Sample Model and Serial Number Labels . . . . . . . . . . 1-7Figure 1-2 HP LaserJet 5Si/5Si MX/NX and Mopier Engin

Testing the Printer PCL Configuration PageWhen you print a PCL Configuration Page, the printer checks its internalcontroller and I/O interface, then p

ConfigurationPageFigure 3-2 PCL Configuration Page3-26 Operating Overview

1 Printer Information lists printer specific statistics.Serial Number shows the printer serial number.Formatter Number shows the number of the formatt

Figure 3-3 PCL Menu Map Page3-28 Operating Overview

1 Tray Menu lists the current media types settings, and for Tray 1 or the Envelope Feeder, themedia size.2 Job Control Menu shows the Cancel Job and F

Cold ResetCold reset clears all data from the printer memory and sets all the defaults(except Service Mode settings) back to the factory settings. Ca

4Maintenance and AdjustmentsChapter ContentsCleaning the Printer and Accessories . . . . . . . . . . . . . . . . . . . 4-3Cleaning

4-2 Maintenance and Adjustments

Cleaning the Printer and AccessoriesTo maintain the print quality and paper performance, thoroughly clean theprinter and the paper handling accessorie

Cleaning the Printer1 Before you begin these steps, turn theprinter OFF and unplug all cords.2 Open the top cover of the printer andremove the toner c

Figure 6-3 AC Access Cover . . . . . . . . . . . . . . . . . . . . . . . 6-18Figure 6-4 Back Cover . . . . . . . . .

Cleaning Spilled Toner Defective toner cartridges can develop leaks. Also, after a paper jam hasoccurred, there may be some toner remaining on the ro

Preventative MaintenanceThe user-conducted preventive maintenance cycle for this printer is every350,000 images. The part numbers for the preventive

Tray 2 and 3 Adjustment ProcedureThe paper trays are mechanically aligned to the printer chassis at thefactory. Perform this procedure ONLY if a pape

NoteRefer to Figure 4-2. Each adjustment notch changes the physical position ofthe tray by 0.5 mm (0.02 in). Moving the lever counter-clockwise move

Tray 4 Adjustment ProcedureIn some cases, the registration from Tray 4 (HCI) causes print to start tooclose to the edge of the paper. This situation

10 Tighten both screws.11 Reassemble the vertical transfer unit.12 Make sure all the cables (vertical transfer unit and paper deck driveassembly) are

5Functional OverviewChapter ContentsBasic Printer Functionality . . . . . . . . . . . . . . . . . . . . . . . . . 5-3Printer

Printer Input Sources . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-38Paper Size Switches . . . . . . .

Basic Printer FunctionalityThis chapter presents a functional overview of the printer and the printingprocesses. The following topics, functions, and

Printer Functional Block DiagramFigure 5-1 is a functional block diagram of the printer showing the basicpaths for signal, control, and media.Functio

Figure 6-51 Transfer Roller Assembly . . . . . . . . . . . . . . . . . . 6-64Figure 6-52 Tray 1 Assembly . . . . . . . . .

Power Distribution SystemThe AC and DC power supply circuits are contained in the Low VoltagePower Supply (LVPS). The high voltages required for image

AC Power DistributionThe AC power circuitry supplies AC voltage whenever the power cord isconnected, and the power switch is ON. A toner cartridge mus

High Voltage Power DistributionThe High Voltage Power Supply (HVPS, see Figure 5-4) applies a DC biasedAC voltage to the primary charging roller and t

Formatter SystemThe Formatter PCA is responsible for the following:• Controlling the PowerSave mode.• Receiving and processing print data from the var

NotePrinter error messages override the PowerSave message. The printer willenter PowerSave mode at the appropriate time, but the error message willco

DC Controller SystemThe following systems and functions are controlled by the DC ControllerPCA:• DC Power Distribution (+5V DC, +12V DC, +24V DC)• Las

Engine Test MicroswitchThe Engine Test Microswitch, located on the DC Controller PCA, isactivated manually through the square access hole at the right

Image Formation SystemLaser printing requires the interaction of several different technologies (suchas electronics, optics, and electrophotographics)

Toner CartridgeThe toner cartridge is the “heart” of the Image Formation System. It housesthe cleaning, conditioning, and developing steps of the pro

Drum CleaningThe cleaning blade inside the toner cartridge is in contact with the surfaceof the drum at all times. As the drum rotates during printin