COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 4 IMAGE FORMATION SYSTEM4-13 P2.4 Determining the Developing BiasThe developing bias (Vdc) is determined as follows based on the drum surface potential(VL2):Vdc = VL2 + VdcIn terms of copying potential, Vdc = 110 VIn terms of printing potential, Vdc = 85 to 110 V(The potential for printing varies in keeping with the reading of the environment sensor toensure the reproduction of appropriate line widths.)F04-204-01WMUPRWMUP STBY200˚CPotential sensorSelected potentialLaserPrimary chargingVpc Vpc LP0VpcPotential control sequence startVD VL1 VL2VdcVD VdcPhotosensitive drum DevelopingcylinderPotential sensorPrimary currentlevel determinedLaser outputdeterminedFixing assembly temperature 195 ˚CLP
