Dell 3130cn Service Manual page 302

When horizontal lines and/or spot occur periodically, it is possibly caused by the
trouble of a particular roll. In this case, measure the trouble interval on the test
print, and check the relation to the roll in the table below. The interval does not
necessarily match circumference of the roll. The trouble may be solved easily by
the check.
Toner Cartridge Assy (C)
Toner Cartridge Assy (M)
Toner Cartridge Assy (Y)
Version 1 2008.02.15
Exit Pinch Roll
Exit Roll
Pinch Roll
Toner Cartridge Assy (K)
PRINT HEAD
BCR Cleaner Roll
1 - 276
FUSER ASSY
Heat Roll
BTR
Transfer Belt
BTR
BTR
Drum
BTR
BCR
Magnet Roll
Chapter 1 Troubleshooting
Fuser Belt
Drive Roll
Zna01002KA