Quality Maintenance

Adjusting the print image density can prevent faint spots or smears appearing on printed pages.

Only change this setting from its default value if necessary. For details, see Adjusting Image Density.

You can adjust the starting position of the printing page. For details, see Adjusting Printing Position.

You can refresh the drum to improve print quality if streaks or white spots appear on printed images. For details, see Drum Refresh.

You can specify how long it takes to refresh the drum automatically.

The drum may be refreshed automatically due to conditions such as temperature or humidity when the machine is turned on or recovers from the sleep mode. For details, see Auto Drum Refresh.

You can adjust the altitude settings.

If the machine is operated in an environment at an altitude of 1500 meters or higher and irregular white streaks or spots appear on printed images, enable this function to improve print quality. For details, see Altitude Adjustment.

You can specify the power of the electrostatic charger. If irregular streaks appear on printed images, enable this function to improve print quality. For details, see Charger Output.

If print density decreases or printed characters are blurred after a large number of documents are printed at one time, toner can be refilled forcibly. To start a toner refill, it is needed to open and close the cover or turn the machine off then on. For details, see Add Extra Toner.

If toner spreads under the horizontal lines on printed images, enable this function to improve print quality. For details, see Scattered Toner Prevention.