Location of ECU Connectors Figure 61. HP LaserJet 1000 ECU PCB Table 14. ECU connectors 88 Chapter 3 - Troubleshooting Q1342-90910 J203 Ref. Description Remarks SW301 Door-open detection switch Microswitch J301 Toner cartridge high-voltage connector Connection to developing cylinder J304 Toner cartridge high-voltage connector Connection to primary charging roller J305 Formater connector Spade connector (black wire) J210 Output sensor 3-pin connector J211 Paper feed sensor 3-pin connector J206 Fuser assembly I/F 4-pin connector J203 Solenoid 2-pin connector INL 101 Power cord see “Accessories” on page 93.
J102 Fuser assembly power 3-pin connector FH101 FH102 ECU PCB fuse Use only the same type and rating when replacing the ECU PCB fuse. J401 Motor Harness is soldered to the PCB.