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3.2 Using New Consumable Units for Testing Purposes
The MC-860 / CX2633 will allow you to utilize new consumable units for print quality
diagnosis and troubleshooting purposes.
Note! When using new units (Drum, Transfer Belt, Fuser) to assist in troubleshooting,
you should temporarily set the printer to “Factory Mode” (See Section 2.7.8). Setting
to factory mode will allow you to use brand new units for testing purposes without
cutting the fuse.
Caution! Be sure to reset the printer to “Shipping Mode” when testing is complete.
Leaving the printer in Factory Mode may cause erratic operation of the MFP.
3.3 Things to observe when analyzing Test Pages
• 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-registration
Note: Consult the “Repeating Defect Spacing Chart” below.
Repeating Defects Spacing
Component Defect Spacing Defect Location
Imaging Drum 94.3 mm Imaging Unit
Developer Roller 39.7 mm Imaging Unit
Charge Roller 37.7 mm Imaging Unit
Supply Roller 58.4 mm Imaging Unit
Fuser Belt 125.5 mm Fuser
Heat Roller 87.7 mm Fuser
Transfer Roller 50.3 mm Transfer Unit
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