Kyocera TASKalfa 3051ci, Руководство по обслуживанию

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2L6/2N6/2N5/2N4
1-4-266
(7) Black, white or color streaks appear horizontally.
Print example Cause of trouble
1. Dirty developer unit or terminals
2. Flawed or dirty drum unit
Improper grounding
3. Dirty primary transfer roller terminals
Defective part Check description Corrective Action
1
Developer unit
1. Check the print image on
paper has a problem at an
interval equivalent to the cir-
cumference of the develop-
ing roller (39mm).
2. Check that the developing
roller is dirty at its ends or at
the developing bias tab.
1. If the ends of the developing roller and the
connecting terminals for developer bias are
dirty, clean.
2. Replace the developer unit. (see page 1-5-
57)
2
Drum unit 1. Check the print image on
paper has a problem at an
interval equivalent to the
circumference of the drum
(94mm).
Execute drum refreshing.
(System Menu >Adjustment / Maintenance)
2. Check if the drum has
scratches.
Replace the drum unit. (Perform U119)
(see page 1-5-57)
3. Check the grounding tab of
the drum or the drum drive
shaft.
1. Check how the inner unit is mounted, and
correct, if necessary.
2. Replace the drum unit. (Perform U119)
(see page 1-5-57)
4
Primary transfer
roller (transfer belt) Check if the connecting termi-
nals between the transfer high-
voltage PWB and the primary
transfer roller are contaiminated
by toner.
Or, the connecting terminals are
deformed losing contacts. 1. If the connecting terminals is dirty, clean it
using a brush.
2. If the connecting terminals are deformed,
correct for a proper conduction.
3. Replace the intermediate transfer belt unit.
(see page 1-5-62)
5
High-voltage
PWB1 The bias voltage output sup-
plied by the high-voltage PWB1
is not even. Replace the high-voltage PWB1. (see page 1-
5-88)