CHAPTER 13 TROUBLESHOOTINGCOPYRIGHT © 2002 CANON INC. 2000 CANON iR1600/iR2000 REV.1 JAN. 2002 13-121E719 The communication between the card reader and the image processor PCBis disrupted.Possible cause The wiring is faulty (short circuit, open circuit). The card reader is faulty.The image processor PCB is faulty.Note Be sure to clear the error in service mode : #12 CLEAR>CARD.Remedy1) ConnectorIs the connection and the wiring for the connector (J1131) of thecard reader and the connector (J210) on the image processor PCBnormal?NO : Correct the connection.2) Image processor PCBTry replacing the card reader. Is the fault corrected?YES : End.NO : Replace the image processor PCB.If E719 is indicated, the fault in communication is retained by the RAM onthe image processor even when the power switch has been turned off andthen on; be sure to execute #12 CLEAR>CARD in service mode beforemaking corrections.