02/20007-3DocuPrint N2125 Section Contents, Base EngineWiring DataInitial IssueSection ContentsIntroductionThis section of the manual contains a Block Diagram for the N2125 printer. The Block Diagramshows the interconnections of the major subsystems within the printer. The remainder of thissection divides the Block Diagram into nine individual block diagrams to better illustrate theelectrical relationships between components and assemblies within the printer. Each wire inthe block diagram is tagged with a signal name, and each wire is terminated at both ends witha pin number.Base EngineWiring Diagrams and Signal Information for EngineOrganization1. Wiring Diagram Notations (Figure 3)2. Block Diagram (Figure 4 & Figure 5)3. Print Engine Controller PWB <=> LVPS PWB and Fuser Assembly (Figure 7) (Table 2)4. LVPS PWB <=> Fan Assembly, Front Switch Interlock Assembly, 5VDC PWB and SystemController PWB (Figure 8) (Table 3)5. Print Engine Controller PWB <=> HVPS PWB <=> BTR, Print Cartridge, and FuserAssembly (Figure 9) (Table 4) (Table 5)6. Print Engine Controller PWB <=> Fuser Assembly (Figure 10) (Table 6)7. Print Engine Controller PWB <=> Exit Sensor, and Rear Interlock Switch (Figure 11)(Table 7)8. Print Engine Controller PWB <=> Size 1 PWB <=> Feeder PWB <=> Low Paper Sensor,Stack Height Sensor, Feed Clutch Assembly, Turn Clutch Assembly and Motor Assembly(Figure 12) (Table 8) (Table 9)9. Print Engine Controller PWB <=> Main Motor Assembly, Exit Motor Assembly and PrintCartridge Sensor Assembly (Figure 13) (Table 10)10. Print Engine Controller PWB <=> Connector PWB <=> Paper Set Sensor, RegistrationSensor, Registration Clutch, Toner Sensor, Pick Up Solenoid (Figure 14) (Table 11)11. Print Engine Controller PWB <=> Laser Assembly (Figure 15) (Table 12)12. System Controller PWB <=> Control Panel (Figure 16) (Table 13)Location of P/J ConnectorsUse the P/J table (Table 1) and the P/J Map (Figure 1) and (Figure 2) to locate a specific P/Jconnector within the Base Engine.• Locate the P/J connector number in the first column of the table.• Locate the corresponding coordinates in the second column, such as I7 or J7.• Go to the map.• Cross-reference the letter and number of the P/J coordinates with the letters and numberson the map.• The P/J connector is located within the area where the coordinates cross.
