Epson ActionLaser 1600 Service Manual - Page 112

ABCDE, Table 5-38. Print Quality Anomaly

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Troubleshooting EPL-5600/ActionLaser 1600 Service Manual 5.4.2 Print Quality Anomaly This section describes how to isolate a print quality problem from the possible causes. Table 5-38. Print Quality Anomaly Symptom .OW image density. ABCDE ABCDE ABCDE ABCDE El Foggy background ABCDE ABCDE ABCDE ABCDE n Possible Cause Poor development Improper charging Image transfer problem Paper problem Defective optical unit Improper print density setting Poor development Improper charging Improper print density setting Defective optical unit Part Name Check item Imaging cartridge check the toner Ievei in the imaging cartridge. PWB-F board - Imaging cartridge - PWB-F board - Check to see if the Image transfer surface of image roller transfer roller is darnaged. PWB-F board - Paper Check to see if WPer is moist. Optical unit - - - Imaging cartridge Drum charge - - Check the wiring of developing bias line. - Chtik the wiring of PC drum charging bias line. - Optical unit - Remedy Shake the imaging cartridge. Replace the imaging cartridge. Replace the PWB-F board. Replace the imaging cartridge. Replace the PWB-F board. Replace the image transfer roller. Replace the PWB-F board. Replace paper. Replace the optical unit. Adjust the print density using SelecType. Replace the imaging cartridge. Replace the PWB-F board. Replace the PWB-F board. Replace the imaging cartridge. Adjust the print density in SelecType. Replace the optical unit. 5-12 Rev. A

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Troubleshooting
EPL-5600/ActionLaser
1600 Service Manual
5.4.2 Print Quality Anomaly
This section describes how to isolate a print quality problem from the possible causes.
Table 5-38. Print Quality Anomaly
Symptom
Possible Cause
Part Name
Check item
Remedy
.OW
image density.
Shake the imaging
check
the toner
Ievei
cartridge.
El
Imaging
Poor
cartridge
in the imaging
cartridge.
Replace the imaging
ABCDE
development
cartridge.
ABCDE
PWB-F
board
—
Replace the
PWB-F
board.
ABCDE
Imaging
Replace the imaging
ABCDE
Improper
cartridge
—
cartridge.
charging
PWB-F
board
—
Replace the
PWB-F
board.
Check to see if the
Image transfer
surface of image
Replace the image
Image transfer
roller
transfer roller is
transfer roller.
problem
darnaged.
PWB-F
board
—
Replace the
PWB-F
board.
Check to
see
if
WPer
Replace
paper.
Paper problem
Paper
is moist.
Defective optical
Optical unit
—
Replace the optical
unit
unit.
Improper print
Adjust the print density
density setting
—
—
using
SelecType.
Foggy background
Replace the imaging
Poor
Imaging
—
cartridge.
n
development
cartridge
Check the wiring of
Replace the
PWB-F
ABCDE
developing bias line.
board.
Replace the
PWB-F
ABCDE
—
Improper
board.
ABCDE
charging
Drum charge
Chtik
the wiring of
PC drum charging
Replace the imaging
ABCDE
bias line.
cartridge.
Improper print
Adjust the print density
density setting
—
—
in
SelecType.
Defective optical
Optical unit
—
Replace the optical
unit
unit.
5-12
Rev.
A