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service

hp LaserJet 2400 series

HP LaserJet 2400 Series printer

Service Manual

Copyright information © 2004 Copyright Hewlett-Packard Development Company, L.P. Reproduction, adaptation, or translation without prior written permission is prohibited, except as allowed under the copyright laws. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Part number Q5956-90932 Edition 1, 9/2004

Safety information WARNING! Potential Shock Hazard Always follow basic safety precautions when using this product to reduce risk of injury from fire or electric shock. Read and understand all instructions in the user guide. Observe all warnings and instructions marked on the product. Use only a grounded electrical outlet when connecting the printer to a power source. If you do not know whether the outlet is grounded, check with a qualified electrician. Do not touch the contacts on the end of any of the sockets on the printer. Replace damaged cords immediately. Unplug this product from wall outlets before cleaning. Do not install or use this product near water or when you are wet. Install the product securely on a stable surface. Install the product in a protected location where no one can step on or trip over the power cord and where the power cord will not be damaged. If the product does not operate normally, see the online user guide. Refer all servicing questions to qualified personnel. Information regarding FCC Class B, Parts 15 and 68 requirements can be found in the user guide.

Trademark credits Adobe®, Acrobat®, PostScript®, and the Acrobat Logo® are trademarks of Adobe Systems Incorporated. JavaTM is a U.S. trademark of Sun Microsystems, Inc. Microsoft®, Windows®, and Windows NT® are U.S. registered trademarks of Microsoft Corporation. UNIX® is a registered trademark of The Open Group. ENERGY STAR® and the ENERGY STAR logo® are U.S. registered marks of the United States Environmental Protection Agency.

Table of contents

1 Product Information
Chapter contents........................................................................................................................ 1 Printer configurations.................................................................................................................2 HP LaserJet 2400 Series printer base models....................................................................2 Features.....................................................................................................................................4 Specifications.............................................................................................................................8 Physical specifications ........................................................................................................8 Electrical specifications ......................................................................................................9 Acoustic emissions ...........................................................................................................10 Operating environment .....................................................................................................10 Media specifications ................................................................................................................ 1 1 Supported types and sizes of print media ........................................................................11 Paper and print media.......................................................................................................12 Printing and paper storage environment...........................................................................13 Envelopes.......................................................................................................................... 4 1 Envelopes with double side seams ..................................................................................14 Envelopes with adhesive strips or flaps............................................................................14 Envelope margins.............................................................................................................. 5 1 Envelope storage ..............................................................................................................15 Labels................................................................................................................................15 Transparencies ................................................................................................................. 5 1 Hewlett-Packard limited warranty statement ..........................................................................16 Print Cartridge Limited Warranty Statement ...........................................................................17 HP LaserJet printing supplies .................................................................................................18 Declaration of conformity ........................................................................................................19 Country-/region-specific safety statements .............................................................................20 Laser safety statement .....................................................................................................20 Canadian DOC statement ................................................................................................20 Japanese VCCI statement ................................................................................................20 Korean EMI statement ...................................................................................................... 0 2 Finnish laser statement ....................................................................................................21

2 Installation
Chapter contents...................................................................................................................... 3 2 Operating environment ............................................................................................................24 Interface ports .........................................................................................................................24 Software...................................................................................................................................25 Operating systems and printer components ....................................................................25 Printer drivers ...................................................................................................................26 Software for Macintosh computers ...................................................................................27

3 Operation
Chapter contents...................................................................................................................... 9 2 Control panel............................................................................................................................ 1 3

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Control-panel layout..........................................................................................................31 Control-panel buttons........................................................................................................32 Control-panel lights ...........................................................................................................33 Control-panel language ....................................................................................................34 Printing control-panel menus ............................................................................................34 Selecting which tray is used for printing .................................................................................35 Understanding tray order .................................................................................................. 5 3 Customizing tray 1 operation ............................................................................................36 Printing by type and size of media (locking trays) ............................................................37 Feeding media from tray 1 manually ................................................................................38 Selecting the correct fuser mode ............................................................................................39 Using the embedded Web server ...........................................................................................40 Opening the embedded Web server ................................................................................40 Information tab ..................................................................................................................41 Settings tab .......................................................................................................................41 Networking tab ..................................................................................................................42 Other links .........................................................................................................................42 Using HP Web Jetadmin software ..........................................................................................43 Using the HP Toolbox .............................................................................................................44 Supported operating systems ...........................................................................................44 Supported browsers .........................................................................................................44 To view the HP Toolbox ...................................................................................................45 Status tab ..........................................................................................................................45 Troubleshooting tab .......................................................................................................... 6 4 Alerts tab ...........................................................................................................................46 Documentation tab ...........................................................................................................47 Device Settings window ....................................................................................................47 Toolbox links .....................................................................................................................47 Other links .........................................................................................................................47 Uninstalling the HP Toolbox ....................................................................................................48 To uninstall the HP Toolbox by using the Windows desktop shortcut .............................48 Checking the printer configuration ..........................................................................................48 Menu map ......................................................................................................................... 8 4 Configuration page ...........................................................................................................49 Supplies status page ........................................................................................................51 PS or PCL font list ............................................................................................................52 Managing the print cartridge ...................................................................................................53 HP print cartridges ............................................................................................................ 3 5 Non-HP print cartridges ....................................................................................................53 Print-cartridge authentication ............................................................................................53 Print-cartridge storage ......................................................................................................53 Print-cartridge life expectancy ..........................................................................................54 Checking the supply level ................................................................................................. 4 5 Cartridge-low and cartridge-out conditions ......................................................................55

4 Maintenance
Chapter contents...................................................................................................................... 7 5 Cleaning the printer ................................................................................................................. 8 5 Cleaning the outside ......................................................................................................... 8 5 Cleaning the paper path and print-cartridge areas ...........................................................58 Cleaning the fuser ............................................................................................................60

5 Theory of operation
Chapter contents...................................................................................................................... 1 6 Introduction...............................................................................................................................62

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Internal components.................................................................................................................63 Timing.......................................................................................................................................64 Engine control system.............................................................................................................. 6 6 Laser/scanner system..............................................................................................................68 Pickup/feed/delivery system....................................................................................................69 Image-formation system...........................................................................................................71 Step 1: Primary charging...................................................................................................72 Step 2: Laser beam exposure...........................................................................................72 Step 3: Developing............................................................................................................73 Step 4: Transfer................................................................................................................. 3 7 Step 5: Separation............................................................................................................. 4 7 Step 6: Fusing....................................................................................................................74 Step 7: Drum cleaning.......................................................................................................75 Print cartridge memory system................................................................................................76

6 Removal and replacement
Chapter contents...................................................................................................................... 7 7 Introduction ..............................................................................................................................78 Removal and replacement strategy ..................................................................................78 Electrostatic discharge .....................................................................................................78 User-replaceable parts .....................................................................................................78 Required tools ...................................................................................................................78 Before performing service ....................................................................................................... 9 7 Pre-service procedures ....................................................................................................79 Parts removal order ..........................................................................................................80 Covers...................................................................................................................................... 1 8 Right-side cover.................................................................................................................81 Back cover......................................................................................................................... 2 8 I/O cover............................................................................................................................85 Left-side cover...................................................................................................................86 Top, right cover..................................................................................................................88 Top cover........................................................................................................................... 9 8 Front, right cover................................................................................................................90 Control panel............................................................................................................................ 2 9 Formatter..................................................................................................................................94 Fuser........................................................................................................................................98 Laser/scanner........................................................................................................................103 Right-side handle...................................................................................................................106 ECU........................................................................................................................................108 Access plate........................................................................................................................... 14 1 Power supply..........................................................................................................................115 Gear assembly....................................................................................................................... 20 1 Tray 1 solenoid.......................................................................................................................124 Tray 2 solenoid.......................................................................................................................125 E-label reader (memory tag)..................................................................................................126 Face-down-roller shaft...........................................................................................................128 Cartridge door........................................................................................................................130 Transfer roller......................................................................................................................... 33 1 Registration assembly............................................................................................................134 Tray 1 pickup roller.................................................................................................................137 Tray 2 pickup roller.................................................................................................................138 Separation pad....................................................................................................................... 40 1

7 Troubleshooting
Chapter contents.................................................................................................................... 41 1

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Troubleshooting tree..............................................................................................................143 Troubleshooting flowchart ..................................................................................................... 44 1 1. Does the control-panel display show READY?...........................................................144 2. Can you print a configuration page? ..........................................................................145 3. Can you print from a program? ..................................................................................146 4. Does the job print as expected?..................................................................................147 5. Does the printer select the correct trays?...................................................................148 Troubleshooting tools ............................................................................................................149 Information pages ........................................................................................................... 49 1 Embedded Web server ................................................................................................... 54 1 Gaining access to the embedded Web server ...............................................................154 Printer Status and Alerts software ..................................................................................156 Control-panel menus .............................................................................................................158 Using control-panel menus ............................................................................................. 58 1 Resets submenu .............................................................................................................159 Diagnostics menu ...........................................................................................................159 Service menu (service PIN codes) .................................................................................161 Printer resets and power-on modes ...................................................................................... 63 1 Cold reset .......................................................................................................................163 NVRAM initialization .......................................................................................................164 Hard-disk initialization .....................................................................................................164 Power-on bypass ............................................................................................................ 65 1 Save + Restore................................................................................................................ 65 1 Test pages .............................................................................................................................166 Engine-test page ............................................................................................................166 Formatter test page ........................................................................................................166 Interface troubleshooting ......................................................................................................167 Communications checks .................................................................................................167 EIO troubleshooting ........................................................................................................ 67 1 Solving general printing problems .........................................................................................169 Clearing jams ........................................................................................................................173 Avoiding jams .................................................................................................................173 Typical jam locations ......................................................................................................174 Media handling problems ...................................................................................................... 81 1 Multiple pages feed ........................................................................................................181 Pages are wrinkled or folded ..........................................................................................182 Pages are skewed ..........................................................................................................182 Understanding printer messages ..........................................................................................183 Using the printer online Help system ..............................................................................183 Resolving persistent messages ......................................................................................183 Correcting print-quality problems ..........................................................................................201 Print-quality checklist ...................................................................................................... 01 2 Image-defect examples ..................................................................................................201 Light print (partial page) ..................................................................................................203 Light print (entire page) ..................................................................................................203 Specks ............................................................................................................................ 04 2 Dropouts .........................................................................................................................204 Lines ...............................................................................................................................205 Gray background ............................................................................................................205 Toner smear ...................................................................................................................206 Loose toner .....................................................................................................................206 Repeating defects ...........................................................................................................207 Repeating image ............................................................................................................207 Misformed characters .....................................................................................................208 Page skew ......................................................................................................................208 Curl or wave ....................................................................................................................209

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Wrinkles or creases ........................................................................................................209 Vertical white lines .......................................................................................................... 10 2 Tire tracks ....................................................................................................................... 10 2 White spots on black ......................................................................................................211 Scattered lines ................................................................................................................ 11 2 Blurred print ....................................................................................................................212 Random image repetition ...............................................................................................212 Troubleshooting common Windows problems .....................................................................213 Troubleshooting common Macintosh problems ....................................................................214 Troubleshooting common PostScript problems ....................................................................220 General problems ...........................................................................................................220 Specific errors..................................................................................................................220 Printer component locations..................................................................................................222 Main assemblies.............................................................................................................. 22 2 Main parts........................................................................................................................ 23 2 Sensors and switches......................................................................................................224 Motors, fans, and solenoids.............................................................................................225 PCAs................................................................................................................................226 500-Sheet paper feeder...................................................................................................227 Wiring diagrams.....................................................................................................................228 General timing diagrams........................................................................................................ 31 2

8 Parts and diagrams
Chapter contents.................................................................................................................... 33 2 Ordering parts and supplies .................................................................................................. 34 2 Parts ...............................................................................................................................234 Related documentation and software .............................................................................234 Supplies .......................................................................................................................... 34 2 Accessories............................................................................................................................ 35 2 Covers.................................................................................................................................... 38 2 Internal components...............................................................................................................240 Tray 2 pickup assembly.........................................................................................................254 Alphabetical parts list.............................................................................................................256 Numerical parts list.................................................................................................................262

Index

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List of tables

Table 1-1. Table 1-2. Table 1-3. Table 1-4. Table 1-5. Table 1-6. Table 1-7. Table 1-8. Table 1-9. Table 1-10. Table 1-11. Table 1-12. Table 1-13. Table 1-14. Table 1-15. Table 1-16. Table 5-1. Table 5-2. Table 7-1. Table 7-2. Table 7-3. Table 7-4. Table 7-5. Table 7-6. Table 7-7. Table 7-8. Table 7-9. Table 7-10. Table 8-1. Table 8-2. Table 8-3. Table 8-4. Table 8-5. Table 8-6. Table 8-7. Table 8-8. Table 8-9.

Feature designations for HP LaserJet 2400 Series printers..............................2 Speed ................................................................................................................4 Resolution .........................................................................................................4 Paper handling ..................................................................................................4 Memory and processor .....................................................................................5 Interface connections and networking ..............................................................5 Language and fonts ..........................................................................................5 Print cartridge ....................................................................................................6 Energy savings ..................................................................................................6 Economical printing ...........................................................................................6 Accessibility ....................................................................................................... 7 Product dimensions ...........................................................................................8 Product dimensions, with all doors and trays fully opened ...............................8 Power requirements ..........................................................................................9 Power consumption (average, in watts)1 ..........................................................9 Sound power and pressure level1 (HP LaserJet 2400 series) ........................10 Operation sequences.......................................................................................64 Power-on sequence.........................................................................................64 Resets submenu............................................................................................159 Diagnostics menu...........................................................................................160 Common causes of jams................................................................................173 Causes for multiple pages feeding.................................................................181 Causes for wrinkled or folded paper at the paper-path entrance..................182 Causes for wrinkled or folded paper at the paper-path exit...........................182 Causes for skewed pages..............................................................................182 Interpreting control-panel messages .............................................................183 Problems with Mac OS 9.x ...........................................................................214 Problems with Mac OS X ..............................................................................216 Technical support Web sites .........................................................................234 Covers............................................................................................................239 Internal components (1 of 4)..........................................................................241 Internal components (2 of 4)..........................................................................245 Internal components (3 of 4)..........................................................................249 Internal components (4 of 4)..........................................................................251 Tray 2 pickup assembly.................................................................................255 Alphabetical parts list.....................................................................................256 Numerical parts list.........................................................................................262

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List of figures

Figure 1-1. Figure 1-2. Figure 3-1. Figure 3-2. Figure 5-1. Figure 5-2. Figure 5-3. Figure 5-4. Figure 5-5. Figure 5-6. Figure 5-7. Figure 5-8. Figure 5-9. Figure 5-10. Figure 5-11. Figure 5-12. Figure 5-13. Figure 5-14. Figure 5-15. Figure 6-1. Figure 6-2. Figure 6-3. Figure 6-4. Figure 6-5. Figure 6-6. Figure 6-7. Figure 6-8. Figure 6-9. Figure 6-10. Figure 6-11. Figure 6-12. Figure 6-13. Figure 6-14. Figure 6-15. Figure 6-16. Figure 6-17. Figure 6-18. Figure 6-19. Figure 6-20. Figure 6-21. Figure 6-22. Figure 6-23. Figure 6-24. Figure 6-25. Figure 6-26. Figure 6-27.

HP LaserJet 2400 Series printer base model, front/right-side view..................2 HP LaserJet 2400 Series printer base model, right-side/rear view...................3 Location of the control panel............................................................................31 Control-panel layout.........................................................................................31 Block diagram...................................................................................................62 Cross-section of printer....................................................................................63 Engine control system......................................................................................66 Engine control system circuit diagram.............................................................67 Laser/scanner system......................................................................................68 Pickup/feed/delivery system............................................................................70 Print cartridge diagram.....................................................................................71 Image-formation system...................................................................................71 Primary charging..............................................................................................72 Developing.......................................................................................................73 Transfer............................................................................................................73 Separation........................................................................................................74 Fusing...............................................................................................................74 Drum cleaning..................................................................................................75 Print cartridge memory tag ..............................................................................76 Parts removal diagram.....................................................................................80 Removing the right-side cover.........................................................................81 Removing the back cover (1 of 3)....................................................................82 Removing the back cover (2 of 3)....................................................................83 Removing the back cover (3 of 3)....................................................................84 Removing the I/O cover...................................................................................85 Removing the left-side cover (1 of 2)...............................................................86 Removing the left-side cover (2 of 2)...............................................................87 Removing the top, right cover..........................................................................88 Removing the top cover...................................................................................89 Removing the front, right cover (1 of 2)...........................................................90 Removing the front, right cover (2 of 2)...........................................................91 Removing the control panel.............................................................................92 Reinstalling the control panel...........................................................................93 Removing the formatter (1 of 4).......................................................................94 Removing the formatter (2 of 4).......................................................................95 Removing the formatter (3 of 4).......................................................................96 Removing the formatter (4 of 4).......................................................................97 Removing the fuser (1 of 5).............................................................................98 Removing the fuser (2 of 5).............................................................................99 Removing the fuser (3 of 5)...........................................................................100 Removing the fuser (4 of 5)...........................................................................101 Removing the fuser (5 of 5)...........................................................................102 Removing the laser/scanner (1 of 3)..............................................................103 Removing the laser/scanner (2 of 3)..............................................................104 Removing the laser/scanner (3 of 3)..............................................................105 Removing the right-side handle (1 of 2).........................................................106

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Figure 6-28. Figure 6-29. Figure 6-30. Figure 6-31. Figure 6-32. Figure 6-33. Figure 6-34. Figure 6-35. Figure 6-36. Figure 6-37. Figure 6-38. Figure 6-39. Figure 6-40. Figure 6-41. Figure 6-42. Figure 6-43. Figure 6-44. Figure 6-45. Figure 6-46. Figure 6-47. Figure 6-48. Figure 6-49. Figure 6-50. Figure 6-51. Figure 6-52. Figure 6-53. Figure 6-54. Figure 6-55. Figure 6-56. Figure 6-57. Figure 6-58. Figure 6-59. Figure 6-60. Figure 6-61. Figure 7-1. Figure 7-2. Figure 7-3. Figure 7-4. Figure 7-5. Figure 7-6. Figure 7-7. Figure 7-8. Figure 7-9. Figure 7-10. Figure 7-11. Figure 7-12. Figure 7-13. Figure 7-14. Figure 7-15. Figure 8-1. Figure 8-2. Figure 8-3. Figure 8-4. Figure 8-5. Figure 8-6.

Removing the right-side handle (2 of 2).........................................................107 Removing the ECU (1 of 6)............................................................................108 Removing the ECU (2 of 6)............................................................................109 Removing the ECU (3 of 6)............................................................................110 Removing the ECU (4 of 6)............................................................................111 Removing the ECU (5 of 6)............................................................................112 Removing the ECU (6 of 6)............................................................................113 Removing the access plate............................................................................114 Removing the power supply (1 of 5)..............................................................115 Removing the power supply (2 of 5)..............................................................116 Removing the power supply (3 of 5)..............................................................117 Removing the power supply (4 of 5)..............................................................118 Removing the power supply (5 of 5)..............................................................119 Removing the gear assembly (1 of 6)............................................................120 Removing the gear assembly (2 of 6)............................................................121 Removing the gear assembly (3 of 6)............................................................122 Reinstalling the gear assembly......................................................................123 Removing the tray 1 solenoid........................................................................124 Removing the tray 2 solenoid........................................................................125 Removing the e-label reader (1 of 2).............................................................126 Removing the e-label reader (2 of 2).............................................................127 Removing the face-down-roller shaft (1 of 2).................................................128 Removing the face-down-roller shaft (2 of 2).................................................129 Removing the cartridge door (1 of 3).............................................................130 Removing the cartridge door (2 of 3).............................................................131 Removing the cartridge door (3 of 3).............................................................132 Removing the transfer roller...........................................................................133 Removing the registration assembly (1 of 3).................................................134 Removing the registration assembly (2 of 3).................................................135 Removing the registration assembly (3 of 3).................................................136 Removing the tray 1 pickup roller..................................................................137 Removing the tray 2 pickup roller (1 of 2)......................................................138 Removing the tray 2 pickup roller (2 of 2)......................................................139 Removing the separation pad........................................................................140 Basic troubleshooting.....................................................................................143 Sample menu map page................................................................................151 Sample configuration page............................................................................152 Supplies status page......................................................................................153 Jetdirect page.................................................................................................168 Main assemblies, HP LaserJet 2400 series...................................................222 Main parts, HP LaserJet 2400 series.............................................................223 Sensors and switches, HP LaserJet 2400 series..........................................224 Motors, fans, and solenoids, HP LaserJet 2400 series.................................225 PCAs, HP LaserJet 2400 series....................................................................226 500-Sheet paper feeder, HP LaserJet 2400 series.......................................227 Circuit diagram (1 of 2)...................................................................................228 Circuit diagram (2 of 2)...................................................................................229 ECU wiring.....................................................................................................230 Timing diagram, HP LaserJet 2400 series.....................................................231 Covers............................................................................................................238 Internal components (1 of 4)..........................................................................240 Internal components (2 of 4)..........................................................................244 Internal components (3 of 4)..........................................................................248 Internal components (4 of 4)..........................................................................250 Tray 2 pickup assembly.................................................................................254

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Product Information

Chapter contents
Chapter contents........................................................................................................................ 1 Printer configurations.................................................................................................................2 HP LaserJet 2400 Series printer base models....................................................................2 Features.....................................................................................................................................4 Specifications.............................................................................................................................8 Physical specifications ........................................................................................................8 Electrical specifications ......................................................................................................9 Acoustic emissions ...........................................................................................................10 Operating environment .....................................................................................................10 Media specifications ................................................................................................................ 1 1 Supported types and sizes of print media ........................................................................11 Paper and print media.......................................................................................................12 Printing and paper storage environment...........................................................................13 Envelopes.......................................................................................................................... 4 1 Envelopes with double side seams ..................................................................................14 Envelopes with adhesive strips or flaps............................................................................14 Envelope margins.............................................................................................................. 5 1 Envelope storage ..............................................................................................................15 Labels................................................................................................................................15 Transparencies ................................................................................................................. 5 1 Hewlett-Packard limited warranty statement ..........................................................................16 Print Cartridge Limited Warranty Statement ...........................................................................17 HP LaserJet printing supplies .................................................................................................18 Declaration of conformity ........................................................................................................19 Country-/region-specific safety statements .............................................................................20 Laser safety statement .....................................................................................................20 Canadian DOC statement ................................................................................................20 Japanese VCCI statement ................................................................................................20 Korean EMI statement ...................................................................................................... 0 2 Finnish laser statement ....................................................................................................21

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Printer configurations
The HP LaserJet 2400 Series printer is available in several configurations. The letters that follow the printer name indicate the differences between the configurations. Each letter refers to a specific feature. Use the information in this section to determine which features your model has. NOTE Not all models are available in all configurations.

Table 1-1. Feature designations for HP LaserJet 2400 Series printers
Letter no letter d n t Description This is the base model. A duplexer is included for automatic two-sided printing. An embedded HP Jetdirect print server is included for connecting to a 10/100Base-T network. An additional input tray is included.

HP LaserJet 2400 Series printer base models
1 2 3 4 6 5 7

Figure 1-1.

HP LaserJet 2400 Series printer base model, front/right-side view
1 2 3 4 5 6 7 Top output bin Long-media extension Cartridge-door latch Tray 1 Tray 2 Control panel Right-side cover

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8

9

Figure 1-2.

HP LaserJet 2400 Series printer base model, right-side/rear view
8 9 10 On/off switch Interface ports Rear output bin

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Printer configurations

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Features
The following tables describe the features of HP LaserJet 2400 Series printers. Table 1-2. Speed
HP LaserJet 2410 printer Prints on letter-size paper at 25 pages per minute (ppm). Prints on A4-size paper at 24 ppm. HP LaserJet 2420 Series printer Prints on letter-size paper at 30 pages per minute (ppm). Prints on A4-size paper at 28 ppm. HP LaserJet 2430 Series printer Prints on letter-size paper at 35 pages per minute (ppm). Prints on A4-size paper at 33 ppm.

Table 1-3. Resolution
HP LaserJet 2410 printer FastRes 1200 produces 1200dpi print quality for fast, highquality printing of business text and graphics. ProRes 1200 produces 1200dpi printing for the best quality in line art and graphic images. HP LaserJet print cartridges produce crisp, sharp output. HP LaserJet 2420 Series printer FastRes 1200 produces 1200dpi print quality for fast, highquality printing of business text and graphics. ProRes 1200 produces 1200dpi printing for the best quality in line art and graphic images. HP LaserJet print cartridges produce crisp, sharp output. HP LaserJet 2430 Series printer FastRes 1200 produces 1200dpi print quality for fast, highquality printing of business text and graphics. ProRes 1200 produces 1200dpi printing for the best quality in line art and graphic images. HP LaserJet print cartridges produce crisp, sharp output.

Table 1-4. Paper handling
HP LaserJet 2410 printer Includes a 100-sheet manualfeed input tray and a 250-sheet input tray. Compatible with an optional 500-sheet paper feeder. Manual duplexing is available. HP LaserJet 2420 Series printer Includes a 100-sheet manualfeed input tray and a 250-sheet input tray. Compatible with an optional 500-sheet paper feeder. The HP LaserJet 2420d and 2420dn printers include a duplex-printing accessory (duplexer) for automatic twosided printing. HP LaserJet 2430 Series printer Includes a 100-sheet manualfeed input tray, a 250-sheet input tray, and a 500-sheet input tray. The HP LaserJet 2430dtn printers include a duplexprinting accessory (duplexer) for automatic two-sided printing.

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Table 1-5. Memory and processor
HP LaserJet 2410 printer Includes 32 MB of RAM. Expandable up to 288 MB maximum memory. 400-MHz processor speed. HP LaserJet 2420 Series printer The HP LaserJet 2420 printer includes 32 MB of RAM, expandable to 288 MB maximum memory. The HP LaserJet 2420d printer includes 48 MB RAM, expandable to 304 MB maximum memory. The HP LaserJet 2420n and 2420dn printers include 64 MB RAM, expandable to 320 MB maximum memory. 400-MHz processor speed. HP LaserJet 2430 Series printer The HP LaserJet 2430t printer includes 48 MB of RAM, expandable to 304 MB maximum memory. The HP LaserJet 2430tn and 2430dtn printers include 64 MB RAM, expandable to 320 MB maximum memory. 400-MHz processor speed.

Table 1-6. Interface connections and networking
HP LaserJet 2410 printer Includes a bidirectional, extended capabilities (ECP) type-B (IEEE 1284-compliant) parallel connection. Includes a USB 2.0 connection (full and high speed). Includes one PCI-based enhanced input/output (EIO) expansion slot. HP LaserJet 2420 Series printer Includes a bidirectional, ECP type-B (IEEE 1284-compliant) parallel connection. Includes a USB 2.0 connection (full and high speed). Includes one PCI-based enhanced input/output (EIO) expansion slot. The HP LaserJet 2420n and 2420dn printers include an embedded HP Jetdirect print server for connecting to a 10/100Base-TX network. HP LaserJet 2430 Series printer Includes a bidirectional, ECP type-B (IEEE 1284-compliant) parallel connection. Includes a USB 2.0 connection (full and high speed). Includes one PCI-based enhanced input/output (EIO) expansion slot. The HP LaserJet 2430tn and 2430dtn printers include an embedded HP Jetdirect print server for connecting to a 10/100Base-TX network.

NOTE

48 MB RAM is required for network connectivity for the HP LaserJet 2410 and HP LaserJet 2420 printer base models. Table 1-7. Language and fonts
HP LaserJet 2410 printer HP LaserJet 2420 Series printer HP LaserJet 2430 Series printer

HP PCL6, PCL 5e, and HP PCL6, PCL 5e, and HP PCL6, PCL 5e, and HP PostScript® (PS) 3 emulation HP PostScript® (PS) 3 emulation HP PostScript® (PS) 3 emulation 80 fonts for Microsoft® Windows® Additional fonts can be added by installing a CompactFlash font card. 80 fonts for Microsoft® Windows® Additional fonts can be added by installing a CompactFlash font card. 80 fonts for Microsoft® Windows® Additional fonts can be added by installing a CompactFlash font card.

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Table 1-8. Print cartridge
HP LaserJet 2410 printer The standard print cartridge prints up to 6,000 pages. "Extended life" print cartridges print up to 12,000 pages. The HP smart-printing-supplies program automatically alerts when toner is low. HP LaserJet 2420 Series printer The standard print cartridge prints up to 6,000 pages. "Extended life" print cartridges print up to 12,000 pages. The HP smart-printing-supplies program automatically alerts when toner is low. HP LaserJet 2430 Series printer The standard print cartridge prints up to 6,000 pages. "Extended life" print cartridges print up to 12,000 pages. The HP smart-printing-suppliesprogram automatically alerts when toner is low.

Table 1-9. Energy savings
HP LaserJet 2410 printer The printer automatically conserves electricity by reducing power consumption when it is not printing. As an ENERGY STAR® partner, Hewlett-Packard Company has determined that this product meets ENERGY STAR® guidelines for energy efficiency. HP LaserJet 2420 Series printer The printer automatically conserves electricity by reducing power consumption when it is not printing. As an ENERGY STAR® partner, Hewlett-Packard Company has determined that this product meets ENERGY STAR® guidelines for energy efficiency. HP LaserJet 2430 Series printer The printer automatically conserves electricity by reducing power consumption when it is not printing. As an ENERGY STAR® partner, Hewlett-Packard Company has determined that this product meets ENERGY STAR® guidelines for energy efficiency.

Table 1-10. Economical printing
HP LaserJet 2410 printer N-up printing (multiple pages on one sheet) saves paper. Duplex printing (manual duplexing only) saves paper. Printing in EconoMode saves toner. HP LaserJet 2420 Series printer N-up printing (multiple pages on one sheet) saves paper. Duplex printing (manual duplexing, or automatic duplexing for models that include a duplexer) saves paper. Printing in EconoMode saves toner. HP LaserJet 2430 Series printer N-up printing (multiple pages on one sheet) saves paper. Duplex printing (manual duplexing, or automatic duplexing for models that include a duplexer) saves paper. Printing in EconoMode saves toner.

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Table 1-11. Accessibility
HP LaserJet 2410 printer The online user guide is compatible with text screenreaders. The print cartridge can be inserted and removed by using one hand. All doors and covers can be opened by using one hand. The 250-sheet input tray is easy to open and close. All media-width guides can be adjusted by using one hand. HP LaserJet 2420 Series printer The online user guide is compatible with text screenreaders. The print cartridge can be inserted and removed by using one hand. All doors and covers can be opened by using one hand. The 250-sheet input tray is easy to open and close. All media-width guides can be adjusted by using one hand. HP LaserJet 2430 Series printer The online user guide is compatible with text screenreaders. The print cartridge can be inserted and removed by using one hand. All doors and covers can be opened by using one hand. The 250-sheet and 500-sheet input trays are easy to open and close. All media-width guides can be adjusted by using one hand.

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Specifications
Physical specifications
Table 1-12. Product dimensions
Product HP LaserJet 2410, 2420, 2420d, 2420n, and 2420dn HP LaserJet 2430t, 2430tn, and 2430dtn optional 500-sheet feeder
1

Height 260 mm (10.2 inches) 400 mm (15.7 inches) 140 mm (5.5 inches)

Depth 400 mm (15.7 inches) 400 mm (15.7 inches) 400 mm (15.7 inches)

Width 425 mm (16.7 inches) 425 mm (16.7 inches) 425 mm (15.7 inches)

Weight1 15.2 kg (33.5 lb) 20.9 kg (46 lb) 5.7 kg (12.5 lb)

Without print cartridge

Table 1-13. Product dimensions, with all doors and trays fully opened
Printer model HP LaserJet 2410, 2420, 2420d, 2420n, and 2420dn HP LaserJet 2430t, 2430tn, and 2430dtn Height 260 mm (10.2 inches) 400 mm (15.7 inches) Depth 730 mm (28.7 inches) 730 mm (28.7 inches) Width 675 mm (26.6 inches) 675 mm (26.6 inches)

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Electrical specifications
WARNING! Power requirements are based on the country/region where the printer is sold. Do not convert operating voltages. This can damage the printer and void the product warranty. Table 1-14. Power requirements
Specification Power requirements 110-volt models 110 to 127 volts (± 10%) 50/60 Hz (± 2 Hz) Rated short-term current 10.0 Amps 230-volt models 220 to 240 volts (± 10%) 50/60 Hz (± 2 Hz) 5.0 Amps

Table 1-15. Power consumption (average, in watts)1
Product model HP LaserJet 2410 HP LaserJet 2420 HP LaserJet 2420d HP LaserJet 2420n HP LaserJet 2420dn HP LaserJet 2430t HP LaserJet 2430tn HP LaserJet 2430dtn
1

Printing2 625 W3 625 W3 625 W3 625 W3 625 W3 625 W3 625 W3 625 W3

Ready 11 W 11 W 11 W 11 W 11 W 11 W 11 W 11 W

Sleep 8.5 W 8.5 W 8.5 W 8.5 W 8.5 W 8.5 W 8.5 W 8.5 W

Off 0.4 W 0.4 W 0.4 W 0.4 W 0.4 W 0.4 W 0.4 W 0.4 W

Values subject to change. See www.hp.com/support/lj2410, www.hp.com/support/lj2420, or www.hp.com/support/lj2430 for current information. 2 Power numbers are the highest values measured using all standard voltages. 3 HP LaserJet 2410 speed is 25 ppm on letter size and 24 ppm on A4 size. HP LaserJet 2420 speed is 30 ppm on letter size and 28 ppm on A4 size. HP LaserJet 2430 speed is 35 ppm on letter size and 33 ppm on A4 size. Default time from Ready mode to Sleep = 30 minutes. The recovery time from Sleep to start of printing = less than 8.5 seconds. Heat dissipation in Ready mode = 37.5 BTU/hour (HP LaserJet 2410), 37.5 BTU/hour (HP LaserJet 2420), and 37.5 BTU/hour (HP LaserJet 2430).

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Specifications

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Acoustic emissions
Table 1-16. Sound power and pressure level1 (HP LaserJet 2400 series)
Sound power level Printing2 (HP LaserJet 2410) Printing2 (HP LaserJet 2420) Printing2 (HP LaserJet 2430) Ready (HP LaserJet 2410) Ready (HP LaserJet 2420) Ready (HP LaserJet 2430) Sound pressure level Printing2 (HP LaserJet 2410) Printing2 (HP LaserJet 2420) Printing2 (HP LaserJet 2430) Ready (HP LaserJet 2410) Ready (HP LaserJet 2420) Ready (HP LaserJet 2430)
1

Declared per ISO 9296 LWAd= 6.6 Bels (A) [66 dB(A)] LWAd= 6.7 Bels (A) [67 dB(A)] LWAd= 6.8 Bels (A) [68 dB(A)] Essentially Inaudible Essentially Inaudible Essentially Inaudible Declared per ISO 9296 LpAm=52 dB (A) LpAm=53 dB (A) LpAm=53 dB (A) Essentially Inaudible Essentially Inaudible Essentially Inaudible

Values subject to change. See www.hp.com/support/lj2410, www.hp.com/support/lj2420, or www.hp.com/support/lj2430 for current information. 2 HP LaserJet 2410 speed is 25 ppm on A4 size. HP LaserJet 2420 speed is 29 ppm on A4 size. HP LaserJet 2430 speed is 34 ppm on A4 size. 3 Configuration tested (HP LaserJet 2410): Base printer, simplex printing with A4 paper size. 4 Configuration tested (HP LaserJet 2420): Base printer, simplex printing with A4 paper size. 5 Configuration tested (HP LaserJet 2430): Base printer, simplex printing with A4 paper size.

Operating environment
Environmental condition Temperature (printer and print cartridge) Relative humidity Printing 15° to 32.5°C (59° to 89°F) 10% to 80% Storage/standby -20° to 40°C (-4° to 104°F) 10% to 90%

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Media specifications
The printer accepts a variety of media, such as cut-shee