COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 6 SELF DIAGNOSIS6-11 TE740Main cause The LAN card is faulty. The main controller PCB is faulty.Mode ofDetection0001 An error is detected on the LAN card at power-on (with the cardinserted).0002 A MAC address is found to be faulty.0003 The LAN card register cannot be read.E741Main Cause The PCI bus connection is not proper. The main controller PCB is faulty.Mode ofDetection0000 An error has occurred in the PCI bus.E742Main Cause The RIP1 board (accessory) is faulty. The main controller PCB is faulty.Mode ofDetection0000 An error has been detected by self diagnosis of the RIPI board.E743Main cause The connector has poor contact. The main controller PCB is faulty.Mode ofDetection0000 The reader controller PCB has detected an error in the communica-tion between the main controller PCB and the reader controllerPCB.E804Main Cause The wiring is faulty (short circuit, open circuit). The DC power supply fan(FM6) is faulty. The DC controller PCB is faulty.Mode ofDetection0000 While the DC power supply fan is being driven, the clock signal(FM6CLK) does not arrive for 5 secs or more.Download Free Service Manual at http://printer1.blogspot.com