5-2 Phaser 4500/4510 Service ManualPrint-Quality TroubleshootingPrint-Quality Problems OverviewPrint-quality defects can be attributed to printer components, consumables,media, internal software, external software applications, and environmentalconditions. To successfully troubleshoot print-quality problems, as manyvariables as possible must be eliminated. The first step is to generate printsusing information pages embedded in the printer on laser paper from theapproved media list. The paper should be from a freshly opened ream thathas been acclimated to room temperature.Go to the “Supplies” page at www.xerox.com or print the printer’s Paper Tipspage for supported paper and specialty media that has been tested andapproved for use in the Phaser 4500/4510 printer. If the print-quality defect isstill present when printing on approved media from a freshly opened ream ofpaper, then media, software applications, and environmental conditions needto be researched.Determine the temperature and humidity under which the printer has beenoperating. Compare this to the environmental specifications for the printerfound in “Environmental Specifications” on page 1-13 of this manual.Temperature and humidity extremes can adversely affect the Xerographic andfusing characteristics of the printer.When analyzing a print-quality defect, first determine if the defect is repeatingor random. Continuous defects in the process direction, such as voids andlines, are the most difficult to diagnose. The visible surfaces of all rollersshould be inspected for obvious defects.
