The Printer Will No Print; Image Quality Problems - Epson EPL-N2700 Service Manual

EPSON EPL-N2700 / N2750

3.1.4.2 The Printer will no Print.

Table 3-6. Troubleshooting - The Printer will not Print.
Symptom Analysis
Is the On Line LED ON?
The printer
You get a message other
does not eject
than "Ready."
paper.
Does the printer give a
correct test print?
The printer
ejects blank The printer does print, but
sheets of ejects blank sheets of paper.
paper.
Troubleshooting
Finding Action
Press the On Line button
No to turn ON the On Line
LED.
Yes Follow the message.
Check the connection
Yes between the printer and
computer.
Refer to Image Quality
Yes
Problems.
Overview

3.1.4.3 Image Quality Problems

Table 3-7. Troubleshooting - Image Quality Problem
Symptom Analysis
Does the symptom still occur
Faulty image
in a test print?
Turn OFF the printer during a
print cycle and check to see
The printer
if toner sticks to the PC
ejects blank
Drum.
sheets of
Replace the Imaging
paper.
Cartridge to determine if the
problem persists.
Replace the Imaging
Solid black Cartridge to determine if the
problem persists.
Lines (feeding
Is the PC Drum scratched?
direction)
Pitch is 94.2 mm.
Lines
Pitch is 56.5 mm.
(direction
perpendicular
to feeding
direction)
Pitch is 93.5 mm.
Pitch is 33.9 mm.
Revision B
Finding Action
Check the connection
between the printer and
No computer. If it is proper,
the application or printer
driver is probably faulty.
Defective image transfer
Yes bias. Replace High
Voltage Unit.
No Replace ROS unit.
Replace High Voltage
No
Unit.
Replace the Imaging
Yes
Cartridge.
No Replace ROS unit.
Replace the Imaging
Yes Cartridge. (Clean the PC
Drum.)
Clean/replace the Timing
Yes Roller or Image Transfer
Roller.
Replace the Fusing Unit.
Yes (Clean/replace the Fusing
Rollers.)
Clean/replace the Exit
Yes
Roller.
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