COPYRIGHT © 1998 CANON INC. CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) 5-3CHAPTER 5 TROUBLESHOOTINGb. Adjusting the Distance to theHorizontal Size PlateBe sure to perform "removing the skew"before adjusting the distance to thehorizontal size plate.1) Shift bit 1 of the DIP switch (DSW1) onthe DADF controller PCB to ON.ON1 2 3 4 5 6 7 8LED1LED2SW1TP1J10J15J1CB1 J2 J14J12J11J7J6J13J5J9J8J36 1B12 B12 113121312131142A1 A121 1 1 1 9101 4 228171DSW1SW2SW3Figure 5-1082) Place an A3 or 279.4×432.8-×mm(11"×17") sheet of copy paper (64 g/m 2)on the copyboard tray.3) Press the push switch (SW3) on the DADFcontroller PCB once.• The copy paper will be picked up andstopper on the copyboard glass.SW1TP1J10J15J1CB1 J2 J14J12J11J7J6J13J5J9J8J3B12 B12 113121312131142A1 A121 1 1 1 9101 4 228171DSW1SW2SW3Figure 5-1094) Open the DADF slowly, and check tomake sure that the distance l3 shown in thefigure is as indicated.Horizontal size plateA4 copy paper= 2.3 ±1 mm3Figure 5-110Horizontal size plateLTR copy paper= 11.1 ±1 mm3Figure 5-1115) If not as indicated, loosen the positioningscrew and the fixing screws of the DADForiginal tray, and adjust the position of theDADF original tray.Caution:When making a test copy, be sure totighten the two fixing screws and thepositioning screw (2 pc.). Otherwise, theoriginal can jam.