Oki ES3640MFP Service & Troubleshooting Manual

Also see for CX3641 MFP: Configuration guide Module guide Handy reference Technical reference Technical user guide

Oki ES3640MFP Service & Troubleshooting Manual Manual pdf 44 page image

Defects Associated with Specific Printer ComponentsSome print-quality problems can be associated with specific assemblies, the mostcommon problems and the associated assemblies are listed below. Also, refer tothe printer’s Troubleshooting Print-Quality Problems pages or a specific print-quality troubleshooting procedure for more information.Imaging Unit• Streaks in Process Direction (in the direction of feed,parallel with paper travel)• Banding in Scan Direction (across the page,perpendicular to paper travel)• Uneven Density• Voids• Repeating Defects• Mis-registrationTransfer Unit• Toner on the back side of the printed page(simplex mode)• Light Prints• Repeating Defects• Mis-registration - only when there is obviousdamage to the belt.Fuser• Hot or Cold Offsetting• Repeating Defects• Dark Streaks in Process DirectionLED Head• Streaks in the Process Direction• Uneven Density in the Scan DirectionTest PrintsA variety of test prints are available to aid in determining the quality of outputfrom the printer and to assist in troubleshooting. The next section shows how togenerate and analyze test prints