Main              
HP LaserJet 5Si Family Printers Service Manual
            Page
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              Conventions
              Chapter Descriptions
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              List of Figures
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              List of Tables
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              Product Information
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              Printer Features
Table 1-1 Printer Features                
Product Information  1-3
Information              
Paper Capacities and Sizes
Tray 1              
Tray 2
              Tray 3
Tray 4 (2000  Sheet  Input Unit)              
Identification
Model and Serial Numbers              
Specifications
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              Media Selection Guidelines
Paper                
Envelopes 
              Adhesive Labels
Transparencies              
Storing Print Media
Shipping Print Media              
Product Overview
External View of HP LaserJet 5Si/5Si MX/NX and Mopier Engine              
External View of HP LaserJet 5Si Mopier
              Formatter Assemblies
              Accessories and Options
            Page
              Hard Disk 
              Determining Memory Requirements
                 Service Approach  
Ordering Parts                 
Exchange Program  
              Consumables
Toner Cartridge Life               
Refilled Toner Cartridges & Non-HP Staple Cartridges 
Recycling Toner Cartridges               
Related Documentation and Training Media
              Technical Assistance  
HP AUDIO-TIPS                
HP FIRST
              HP CompuServe Forum
Internet                
World Wide Web
HP Reseller Sales and Service Support Line                 
Other Areas
              Warranty
              Warranty Limitations
Service During the Warranty Period                
Service After the Warranty Period
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Operating Environment              
 2 
              Space Requirements 
Environmental Requirements              
Operating Overview
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              Using the Control Panel
Control Panel Layout              
Indicator Lights
              Settings and Defaults
Printer Driver Information                
Paper Source Default
              Restoring Factory Defaults
Setting the Display Language              
Table 3-3 Factory Default Settings
Operating Overview  3-7              
Heavy Media Fuser Mode Explanation
              Setting the Fuser Mode Using PJL Command
              Control Panel Menus
   To select a menu item:              
Note Shaded items appear only if the associated option or function is activated.
Table 3-5 Control Panel Menu Map                
Operating Overview  3-11
              Tray Menu
Table 3-6 Tray Menu Items                
3-12  Operating Overview
              Job Control Menu
              Test Menu
3-14  Operating Overview                
Table 3-8 Test Menu Items
              Configuration Menu
              Table 3-9 Configuration Menu Items
3-16  Operating Overview              
Print Quality Menu
PostScript Menu                
Operating Overview  3-17
Table 3-11 PostScript Menu Items                
Table 3-10 Print Quality Menu Items
              PCL Menu
Table 3-12 PCL Menu Items                
3-18  Operating Overview
              I/O Menu
              MIO 1 and 2 Menus
              Service Mode
              Table 3-15 Service Mode Menu Items
3-22  Operating Overview              
Setting Page Count, Maintenance Count, and Serial Number
              Setting the Cold Reset Default Paper  Size
PowerSave              
Testing the Printer 
PCL Configuration Page                
Paper Path Test
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              Cold Reset
              Maintenance and Adjustments
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              Cleaning the Printer and Accessories
                Cleaning the Printer
              Cleaning Spilled Toner 
              Preventative Maintenance
              Tray 2  and 3 Adjustment  Procedure
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              Tray 4 Adjustment Procedure
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              Functional Overview
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              Basic Printer Functionality
Printer Functional Block Diagram                
{
5-4  Functional Overview                
DCControllerSystem
              {
{                
FunctionalBlockDiagram
FormatterSystem                
MIO#2
              Power Distribution System
              AC Power Distribution
Overcurrent/Overvoltage Protection              
High Voltage Power Distribution
Toner Cartridge Detection                
Print Density Adjustment
              Formatter System
              Resolution Enhancement (REt) 
EconoMode              
DC Controller System
Laser and Scanner Drive                
Paper Motion Monitoring and Control
Clutches              
Engine Test Microswitch
Motors              
Image Formation System
I mage Formation Block Diagram              
Toner Cartridge
Toner Cartridge/High Voltage Power Supply Contacts                
   The Photosensitive Drum
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              Drum Conditioning
              Image Writing
              Image Developing
              Image Transferring and Media Separation
              Image Fusing
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              Table 5-1 Printer Sensors, Solenoids, Clutches, Motors, and Fans
Functional Overview  5-21            
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              2000-Sheet Input Unit (Tray 4) Components 
              Table 5-2 2000-Sheet Input Unit Sensors, Switches, Clutches, and Motors
5-24  Functional Overview            
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              2000-Sheet Input Unit Operation
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              Multi-Bin Mailbox Components
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              Multi-Bin Mailbox Operation
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              Table 5-6 Stapling Unit Sensors, Switches, and Motors
5-34  Functional Overview            
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              Mailbox with Stapler Operation
Main Functional Cycles of the Stapler                
Paper Feed Cycle
              Stapling Cycle
Eject Cycle                
Power-On or Reset Sequence
              Printer Input Sources
Paper Size Switches                
Printing from Trays 2 and 3
              Printing from Tray 1
Printing from the Envelope Feeder                
Printing from Tray 4 (2000-Sheet Input Unit) 
Two-Sided Printing              
Paper Jam Detection
Printer Timing            
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              Removal and Replacement
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              Removal and Replacement Strategy
              Required Tools
              User Installable Accessories
Memory and Personality Upgrade              
Disk Drive
              To Reinstall Disk Drive
              Duplex Unit
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              External Paper Handling Controller
              Tray 4 (2000-Sheet Input Unit) 
              Multi-Bin Mailbox/Mailbox With Stapler
              Hardware Table
              Table 6-1 Hardware Table (continued)
6-16  Removal and Replacement              
Control Panel
              Covers
AC Access Cover              
Back Cover
              Front Cover
            Page
              Left Lower Cover
              Top Cover
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              Delivery Unit (for Face-Down Bin)
               Page
              Diverter Assembly
              Door Assembly, Diverter
              Door Assembly, Right Lower
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              Fan 1, Exhaust (Laser/Scanner) and Housing
Fan Housing              
Fan Motor
              Fan 2, Exhaust (LVPS)
              Fan 3, Intake (Formatter) and Housing
Fan Motor                
Fan Housing (See Fan 2)
              Fan 4, Exhuast (Delivery Unit)
              Feeder Assembly
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              Formatter Assembly
              Setting Page Count, Maintenance Count, and Serial Number
              Fusing Assembly
              Laser/Scanner Assembly
              Main Gear Assembly
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              Main Motor Assembly
              Paper Input Unit (PIU)
              PCA, DC Controller
              PCA, Output Paper Sensor
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              PCA, Paper Size
               Page
              Power Supply, High Voltage (HVPS)
              Power Supply, Low Voltage (LVPS)
              Registration Assembly
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              Roller and Separation Pad, Tray 1
Feed Roller              
Separation Pad
              Rollers: Tray 2 & 3, Pickup, Feed, and Separation
              Sensor, Paper Input Unit (PS2)
              Sensor, Registration (PS1)
              Solenoid Assembly, SL3 (Face-Up)
              Transfer Roller Assembly
              Tray 1 Assembly
              Tray 2/3 Assemblies
              Tray 4 (2000-Sheet Input Unit)
Back Cover              
Left Cover
              Right Cover
              Main Drive Assembly
              Paper Tray
              PCA, Controller
              Pickup Assembly
            Page
              Power Supply
              Rollers: Pickup, Feed, and Separation
                Switch Assembly, Paper Quantity
Switch Assembly, Paper Size              
Switch Assembly, Lifter Sensing
T ransfer Assembly            
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              Multi-Bin Mailbox/Mailbox With Stapler
Covers              
Delivery Head Assembly
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              Flipper Assembly
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              Input Paper Guide
              Interlock Switch
              Jam Access Door Assembly
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              Lower Elevator Pulley Assemblies
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              Metallic Tape and Housing Assembly
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              Motor, Delivery Head Position
              Motor, Transport Belt and Encoder Assembly 
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              Paper Bins and Blind Cover
              PCA, Controller
              Strings, Anti-Curl
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              Stapling Unit Assembly
              Back Plate
To Reinstall            
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              Stapling Unit Controller PCA
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              Top Cover Assembly
              Stapling Bed Assembly
              Hinges
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              Troubleshooting
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              Troubleshooting Process
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              Power-On
Overview                
7-6 Troubleshooting
Table 7-1 Power-On            
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              Engine Test
Engine Test Button Location                
Printing an Engine Test
              Display
Overview                
Display and Evaluate the Error Log
              Configuration
Verify Presence of Installed Personalities and Options on the Configuration Pages                 
  
            Page
              Configuration Page Illustration and Key
Configuration Page Example                
7-12 Troubleshooting
Figure 7-5            
Page
              Communications  Link (C-Link) Cables
              Image Quality
              Check the Toner Cartridge
                  Faulty Image Examples
              Error Log
Print and Evaluate the Error Log                 
   After printing the error log: 
                  Error Log Interpretation 
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              Communication
Verify Communication              
Verify Host  System Operation
              Verification
Paper Path Test               
Customer Print Job 
              Reference
Control Panel Messages and Errors               
Error Log Table
Category/                 
7-24 Troubleshooting
Table 7-5 Printer Control Panel Messages            
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              Category/ 
7-26 Troubleshooting            
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              Category/ 
7-28 Troubleshooting              
Category/ 
<media type> <paper size>                
Troubleshooting 7-29
<media type> <paper size>               
Category/ 
7-30 Troubleshooting              
Category/ 
Troubleshooting 7-31              
Category/ 
7-32 Troubleshooting            
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              Category/ 
7-34 Troubleshooting            
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              General Paper Path Troubleshooting
Troubleshooting 7-37                
General Paper Path Troubleshooting Questions
Problem Action              
Category/ 
7-38 Troubleshooting              
Category/ 
Troubleshooting 7-39              
Category/ 
7-40 Troubleshooting              
Category/ 
Troubleshooting 7-41              
Category/ 
7-42 Troubleshooting            
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              Category/ 
7-44 Troubleshooting            
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              Category/ 
7-46 Troubleshooting              
Category/ 
Troubleshooting 7-47              
Category/ 
7-48 Troubleshooting              
Category/ 
Troubleshooting 7-49              
Category/ 
7-50 Troubleshooting              
Category/ 
Troubleshooting 7-51              
Category/ 
7-52 Troubleshooting              
Category/ 
Troubleshooting 7-53              
Category/ 
7-54 Troubleshooting              
Category/ 
Troubleshooting 7-55              
Category/ 
7-56 Troubleshooting            
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              Category/ 
7-58 Troubleshooting              
Category/ 
Troubleshooting 7-59            
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              Category/ 
7-62 Troubleshooting              
Image Formation Troubleshooting
Check the Toner Cartridge                
 
                  Faulty Image Examples
              Image Quality Tables
HP LaserJet Printer Family Paper Specifications Guide)                
7-64 
Table 7-6 Blank (White) Page              
Table 7-7 Black Page
 7-65              
Table 7-8 Fading Print
7-66               
Table 7-9 Dropout
Table 7-10 Black Lines (parallel or perpendicular to path)                
 7-67
              Table 7-11 Toner Smear
Table 7-12 Background Scatter (or Leading Edge Halo)                
7-68 
              Table 7-13 Repetitive Defects
Table 7-14 Line at Edge of Paper                
 7-69
HP LaserJet Printer Family Paper Specifications Guide              
Possible Cause  Recommended Action 
 HP LaserJet Printer                
7-70 
Table 7-15 Improperly Formed Characters, Character Voids                
Table 7-16 Faulty Registration
              Table 7-17 Image Skew
Table 7-18 Bubble Print                
 7-71
Table 7-19 White Stripes (parallel to path)            
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              Image System Troubleshooting
              Drum Rotation Functional Check
              High-Voltage Power Supply Check
              Troubleshooting Checks
Paper Jams            
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              Clearing Paper Jams
Clearing Repeated Paper Jams              
General Troubleshooting Information
Miscellaneous Problems and Solutions               
    
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              Paper Curl
              Diagrams
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              MULTI-BIN MAILBOX CONTROLLER PCA
Figure 7-39 Multi-Bin M ailbox Main Wiring Diagram 7-98 Troubleshooting            
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              How to Use the Part Lists and Diagrams
Ordering Parts              
Accessories and Supplies
Common Hardware              
Illustrations and Parts Lists
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              Table 8-1 Printer and Paper Handling Components
8-8  Parts and Diagrams             
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              Table 8-2 Printer Covers and Doors
Parts and Diagrams   8-11            
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              Table 8-3 Printer Internal Components (1 of 4)
Parts and Diagrams   8-13            
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              Table 8-4 Printer Internal Components (2 of 4)
Parts and Diagrams   8-15            
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              Table 8-5 Printer Internal Components (3 of 4)
Parts and Diagrams   8-17            
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              Table 8-6 Printer Internal Components (4 of 4)
Parts and Diagrams   8-19            
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              Table 8-7 2000-Sheet Input Unit Internal Components
Parts and Diagrams   8-21            
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              Table 8-9 Multi-Bin Mailbox/Mailbox with Stapler Components (1 of 3)
Parts and Diagrams   8-25            
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              Table 8-10 Multi-Bin Mailbox/Mailbox with Stapler Components (2 of 3)
Parts and Diagrams   8-27            
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              Alphabetical Parts Index
Table A-1 Alphabetical Parts List                
A-2  Parts Index
              Parts Index  A-3
              A-4  Parts Index
              Parts Index  A-5
              A-6  Parts Index
              Parts Index  A-7
              A-8  Parts Index
              Parts Index  A-9
              A-10  Parts Index
              Numerical Parts Index
Table A-2 Numerical Parts Index                
Parts Index  A-11
              A-12  Parts Index
              Parts Index  A-13
              A-14  Parts Index
              Parts Index  A-15
              A-16  Parts Index
              Parts Index  A-17
              A-18  Parts Index
              B
I/O Information                
IEEE 1284 Parallel Cable Information
            Page
              Connecting to LocalTalk Networks
Connecting to the END of a LocalTalk Network              
Connecting to the MIDDLE of a LocalTalk Network
              Connecting to a Network.
BNC Interface                
10Base-T Interface
DIN-8 (LocalTalk) Interface              
Optional Network Configuration.
                 Configuring Novell NetWare Frame Type Parameters.
              Configuring TCP/IP Parameters
                Configuring Apple EtherTalk Phase Parameter
              Disable Network Protocols (Optional).
              C
Regulatory Information                 
Laser Safety (U.S.A.) 
              Laser Statement (Finland) 
Toner Safety                 
MSDS Information  
Ozone Emission               
C
              FCC Regulations
                  VCCI Statement (Japan)
              C
            Page
Index              
Index
Index-1              
Index-2
              Index
Index-3              
Index-4
              HP LaserJet 5Si Family Printers Service Manual