b. If you are not connecting a Remote Diagnostic Unit-A1 or a Copy Data InterfaceBoard-B1, i.e., if a Power Supply-A1 is not necessary,Fig. 9-5054) If the user will be using a card reader, connect the card reader relay cable to theCopy Data Controller-A1 J4 (9p).Fig. 9-506J4Card Reader-A1 relay cableJA2JA1COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 9 INSTALLATION9-43Download service manual and resetter printer at http://printer1.blogspot.com