D. Fan Unit1. Removing the Scanner CoolingFan1) Open the front door, and remove theinside upper cover. (See p. 7-16.)2) Disconnect the three connectors(J1, J2, J3) of the potential controlPCB, and disconnect the connectorw (J921) of the service switch PCB.3) Remove the four mounting screwse, and disconnect the connectorr; then, remove the scanner cool-ing fan unit t together with thepotential control PCB.2. Removing the Exhaust Fan1) Remove the rear cover.2) Remove the two mounting screwsq, and disconnect the connectorw; then, remove the exhaust fan e.CHAPTER 7 EXTERNALS/AUXILIARY MECHANISMS7-28 COPYRIGHT © 1997 CANON INC. CANON NP6560/NP6360/NP6260 REV. 0 NOV. 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)Figure 7-432qw eFigure 7-431eee qwr t