Black Dots; Vertical Line; Horizontal Line; Light Or Faint Image - Epson AcuLaser M2000D Service Manual

EPSON AcuLaser M2000D/M2000DN/M2010D/M2010DN

BLACK DOTS

Black dots appear on the printout.
Sample Possible cause
The photoconductor
ABC unit or the developing
unit is faulty.
123

HORIZONTAL LINE

A horizontal black line appears on the printout.
Sample Possible cause
The photoconductor unit
is not properly grounded.
ABC
123
The photoconductor unit
is faulty.
TROUBLESHOOTING
Checkpoint & Remedy
If the black dots appear at intervals of 94mm,
the photoconductor drum in the
photoconductor unit may be damaged. Replace
the photoconductor unit. (See P. 82)
If the black dots appear at random intervals,
toner may be leaking from the developing unit
or the photoconductor unit. Replace the
photoconductor unit or the developing unit.
(See P. 82)
Checkpoint & Remedy
Check if the drum shaft of the photoconductor
unit and the grounding tab on the printer properly
contact with each other. Apply a small amount of
conductive grease to the grounding tab as
necessary.
Replace the photoconductor unit. (See P. 82)

VERTICAL LINE

A vertical black line appears on the printout.
Sample Possible cause
The charging wire has
ABC acquired oxide on its
surface.
123
The photoconductor unit
is faulty.
The developing roller in
the developing unit is
faulty.

LIGHT OR FAINT IMAGE

The printed image is light or faint.
Sample Possible cause
The paper is inadequate
or faulty.
Mounting failure of the
transfer roller.
Transfer bias is not
normal.
Troubleshooting
Revision B
Checkpoint & Remedy
Remove the photoconductor unit. Slide the green
charger cleaner tab (located at upper side of the
photoconductor unit) from side to side several
times. When finished, put the tab back into place.
(See P. 152)
If toner bands are observed on the photoconductor
drum after printing, the cleaner blade in the
photoconductor unit is not properly functioning.
Replace the photoconductor unit. (See P. 82)
Replace the developing unit. (See P. 82)
Checkpoint & Remedy
Damp paper or paper with rough surface can cause
the problem. Replace the paper with new one.
Check if both ends of the transfer roller are
properly inserted into the bearings. Clean the
bearings if they are contaminated with oil or paper
dust. Replace the transfer roller if necessary.
P. 82)
Replace the HVPS (See P. 75) or the Main Board
Assy. (See P. 92)
Confidential
(See
59