ADJUSTING ELECTROSTATIC CHARGES USED IN A LASER PRINTER

摘要

Provided are a method, system, and article of manufacture for adjusting electrostatic charges used in a laser printer. A charge is applied to a surface of a photoconductor drum to create a dark voltage. An image area of the photoconductor drum is exposed with a printhead using a defined energy level to discharge the charge from the image area. An exposure voltage of the photoconductor drum is measured after the image area has been exposed by the printhead. A first optimization is performed to determine an adjusted dark voltage and an adjusted energy level based on the measured exposure voltage and the dark voltage and the energy levels applied to the photoconductor drum. An applicator voltage is applied to an applicator that applies toner to the exposed image area of the photoconductor drum. Toner density of the toner applied to the photoconductor drum is measured and a second optimization is performed to adjust the applicator voltage to produce a target toner density.