List of figures Figure 1-1. HP LaserJet 2400 Series printer base model, front/right-side view..................2 Figure 1-2. HP LaserJet 2400 Series printer base model, right-side/rear view...................3 Figure 3-1. Location of the control panel............................................................................31 Figure 3-2. Control-panel layout.........................................................................................31 Figure 5-1. Block diagram...................................................................................................62 Figure 5-2.
Cross-section of printer....................................................................................63 Figure 5-3. Engine control system......................................................................................66 Figure 5-4. Engine control system circuit diagram.............................................................67 Figure 5-5. Laser/scanner system......................................................................................68 Figure 5-6. Pickup/feed/delivery system............................................................................70 Figure 5-7.
Print cartridge diagram.....................................................................................71 Figure 5-8. Image-formation system...................................................................................71 Figure 5-9. Primary charging..............................................................................................72 Figure 5-10. Developing.......................................................................................................73 Figure 5-11. Transfer............................................................................................................73 Figure 5-12.
Separation........................................................................................................74 Figure 5-13. Fusing...............................................................................................................74 Figure 5-14. Drum cleaning..................................................................................................75 Figure 5-15. Print cartridge memory tag ..............................................................................76 Figure 6-1. Parts removal diagram.....................................................................................80 Figure 6-2.
Removing the right-side cover.........................................................................81 Figure 6-3. Removing the back cover (1 of 3)....................................................................82 Figure 6-4. Removing the back cover (2 of 3)....................................................................83 Figure 6-5. Removing the back cover (3 of 3)....................................................................84 Figure 6-6. Removing the I/O cover...................................................................................85 Figure 6-7. Removing the left-side cover (1 of 2)...............................................................86 Figure 6-8.
Removing the left-side cover (2 of 2)...............................................................87 Figure 6-9. Removing the top, right cover..........................................................................88 Figure 6-10. Removing the top cover...................................................................................89 Figure 6-11. Removing the front, right cover (1 of 2)...........................................................90 Figure 6-12. Removing the front, right cover (2 of 2)...........................................................91 Figure 6-13.
Removing the control panel.............................................................................92 Figure 6-14. Reinstalling the control panel...........................................................................93 Figure 6-15. Removing the formatter (1 of 4).......................................................................94 Figure 6-16. Removing the formatter (2 of 4).......................................................................95 Figure 6-17. Removing the formatter (3 of 4).......................................................................96 Figure 6-18.
Removing the formatter (4 of 4).......................................................................97 Figure 6-19. Removing the fuser (1 of 5).............................................................................98 Figure 6-20. Removing the fuser (2 of 5).............................................................................99 Figure 6-21. Removing the fuser (3 of 5)...........................................................................100 Figure 6-22. Removing the fuser (4 of 5)...........................................................................101 Figure 6-23.
Removing the fuser (5 of 5)...........................................................................102 Figure 6-24. Removing the laser/scanner (1 of 3)..............................................................103 Figure 6-25. Removing the laser/scanner (2 of 3)..............................................................104 Figure 6-26. Removing the laser/scanner (3 of 3)..............................................................105 Figure 6-27. Removing the right-side handle (1 of 2).........................................................106 ENWW xi