Canon CLC5100 Series Manual

Contents

Canon CLC5100 Series Manual Manual pdf 69 page image

Chapter 22-17F-2-33C/M Laser Unitm᤹2) Start service mode, and execute '1/2 POWER' of'LASER' under 'FUNC'.3) Turn VR1 counterclockwise so that the reading ofthe Digital Multimeter is '20.0 ±0.2 mV'. (Take carenot to turn too fast; the reading will increase abruptlyat a certain point.)4) Press the Stop key to stop the laser output.5) Execute 'POWER' of '6 LASER' under 'FUNC'.6) Turn VR2 counterclockwise so that the reading ofthe Digital Multimeter is '44.8 ±0.4 mV'. (Take carenot to turn too fast; the reading will increase abruptlyat a certain point.)7) Take notes of the reading of 'POWER' afteradjustment.8) Press the Stop key to stop the laser output.9) Perform laser intensity adjustment.᤹When turning the VR, turn it slowly while referring tothe reading of the Digital Multimeter; do not increasethe power excessively.Turning the VR clockwise decreases the laser output.Do not exceed the setting recorded on the label;otherwise, the laser diode may become damaged.2.4.5 Adjusting the LaserIntensity 0002-5885CLC5100 / CLC4000Be sure to adjust the laser power before making thefollowing adjustments᤹1) Start service mode, and execute 'FUNC > 6 LASER> BIAS'2) Take notes of the reading of the Digital Multimeter.3) Press the Stop key to stop the laser output.4) Compute the target value according to thefollowing formula:᤹T-2-1᤹5) Execute 'FUNC > 6 LASER > 800P00'6) Turn VR3 counterclockwise so that the reading ofthe Digital Multimeter is the P00 target value.7) Press the Stop key to stop the laser output.8) Execute 'FUNC > 6 LASER > 800PFF'9) Turn VR4 counterclockwise so that the reading ofthe Digital Multimeter is the PFF target value.10) Press the Stop key to stop the laser output.11) Likewise, adjust the following volumes:Execute the following in service mode, and useVR5:'FUNCTION>LASER>400P00'Execute the following in service mode, anduse6:'FUNCTION>LASER>400PFF'VR1 VR3 VR5 VR7VR2 VR4 VR6 VR8Formula ResultsP00 target:BIAS + 0.1 =PFF target:266/200/400lines(60.0BIAS)× 0.7 + BIAS =800lines(60.0BIAS)×0.57 + BIAS =