4. Making Checksa. Checking the Voltage at J111B-8 (LAON)Check to make sure that the voltage between J111B-8 and J111B-5 (GND) on the DCcontroller PCB is about 5 V when the scanner is moving forward and 0 V during initialrotation, when the scanner is moving in reverse, and during post rotation.b. Intensity/AE AdjustmentTable 4-103 shows items that may be adjusted on the scanning lamp intensity controlcircuit.Table 4-103COPYRIGHT © 1997 CANON INC. CANON NP6350/NP6251 REV. 0 JULY 1997 PRINTED IN JAPAN (IMPRIME AU JAPON)CHAPTER 4 IMAGE FORMATION SYSTEM4-10Service modeLIGHT _ 5LIGHT 5PGLEAM _ 5AE _ SLOP]3]]3]]3]FunctionOptimumintensityadjustment forpotentialcontrol (copydensity at 5)Optimumexposureadjustmentduring non-potentialcontrol (copydensity at 5)AE slopeAdjustmentIntensityCopydensity1V 5V InputqwIntensityCopydensity1 5 9qwIntensityCopydensity1 5 9qwRemarksq If the setting isincreased in servicemode, the intensityduring copying willincrease, making thecopy lighter.w If the setting isdecreased in servicemode, the intensityduring copying willdecrease, making thecopy darker.q If the setting isincreased in servicemode, the intensityduring copying willincrease, making thecopy lighter.w If the setting isdecreased in servicemode, the intensityduring copying willdecrease, making thecopy darker.q If the setting isincreased inadjustment mode, thecopy of a newspaperwill be darker.w When the setting isdecreased inadjustment mode, thecopy of a newspaperwill be lighter.
