2FP/2FY/2FR
1-5-18
Causes Check procedures/corrective measures
1. Contaminated main charger wire
2. Defective drum surface
3. Defective magnet roller (in the developer)
Clean the main charger wire by pulling the green colored cleaning
knob in and out several times.
A streak of toner remaining on drum after printing means that the
cleaning blade (in the drum unit ) is not working properly. Replace
the drum unit. See page 1-6-10.
Replace the developer. See page 1-6-2.
(6) Black vertical
streaks.
Causes
1. Contaminated main charger wire
2. Defective drum surface
3. Defective magnet roller (in the developer)
Causes Check procedures/corrective measures
1. Defective drum unit's ground
2. Defective drum unit
The drum axle in the drum unit and its counter part, the grounding
tab in the printer, must be in a good contact. If necessary, apply a
small amount of electro-conductive grease onto the tab.
Replace the drum unit. See page 1-6-10.
(5) Black horizontal
streaks.
Causes
1. Defective drum unit's ground
2. Defective drum unit
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