COPYRIGHT © 2000 CANON INC. 2000 2000 2000 2000 CANON iR5000/iR6000 REV.0 JULY 2000CHAPTER 4 IMAGE FORMATION SYSTEM4-16 P2.6 Density Adjustment in Each ModeFor the following operation modes, the developing bias determined during potential con-trol is corrected, and the result is used as the target value in each specific mode for densityadjustment.[1] Density Adjustment in CopyingPurpose: Density adjustment is executed to obtain a level of density suited to the needs ofthe user.Correction: The developing bias is corrected in keeping with the F value setting, and it isalso performed as part of image processing.[2] Density Adjustment During PrintingPurpose: Density adjustment is executed to obtain a level of density suited to the needs ofthe user.Correction: The developing bias is corrected in keeping with the F value setting, and it isalso performed as part of image processing.2.6.1 Density Adjustment During CopyingThe developing bias is raised to decrease the copy density. Too high a developing biaswill result in hazy images, while too low a bias will result in foggy images.To avoid these problems, the changes in the developing bias are corrected and correctionis also executed as part of image processing (binary density processing) near the upper andlower limits of the bias.F value12345T04-206-01Developing DC biasstandard value (V)240220180140120Shift(V)60400-40-60Image processingYesNoNoNoYesImage densityLighterDarker
