Epson CX11NF Error Message Service Req E511

This is from the service manual
Service Req E511
�� Possible parts that caused the error�� Troubleshooting
�� Photoconductor Unit �� SENSOR TR-0
�� HARNESS-ASSY XERO �� MOTOR ASSY P/R
�� HARNESS ASSY MAIN �� PWBA MCU�� LV/HVPSStep Check Yes No
1 Check of Photoconductor Unit attachment
Re-attach Photoconductor Unit.
Does the error recur when the power is turned
ON?
Go to Step [2]. End of
procedure
2 Operation check of Photoconductor Unit
Is the Drum of Photoconductor Unit rotating?
Go to Step [3]. Go to Step [10].
3 Check for dirt on silver seal on Belt in
Photoconductor Unit
Remove Photoconductor Unit.
Turn gear of Photoconductor Unit until silver
seal attached to Belt can be seen.
Is silver seal dirty?
Replace
Photoconductor
Unit.
Go to Step [4].
4 Check of SENSOR TR-0 (TR0 Sensor)
attachment
Remove Photoconductor Unit.
Is SENSOR TR-0 attached securely?
Go to Step [5]. Re-attach
the SENSOR
TR-0, and go to
step [5].
5 Check of dirt and foreign bodies on surface
of SENSOR TR-0
Remove Photoconductor Unit.
Are there any dirt or foreign bodies on the
SENSOR TR-0 surface?
Clean to remove
any dirt or
foreign bodies,
and go to step
[6].
Go to Step [7].
6 Does the error recur when the power is
turned ON?
Go to Step [7]. End of
procedure
7 Operation check of SENSOR TR-0
Remove Photoconductor Unit.
The voltage of P416-2 ↔ P416-3 on PWBA
MCU is 5 VDC when silver paper or other
reflective object comes close to the sensing
area of SENSOR TR-0, and is 0 VDC when
the object is released?
Replace PWBA
MCU. (p.404)
Go to Step [8].
8 Check of 5 VDC power supply to SENSOR
TR-0
The voltage of P416-1 ↔ P416-3 on PWBA
MCU is 5 VDC?
Go to Step [9]. Go to Step [14].
9 Continuity check of HARNESS-ASSY XERO
Disconnect the P/J416 from PWBA MCU.
Do all of the wiring below have normal
continuity?
J416-1 ↔ J108-3
J416-2 ↔ J108-2
J416-3 ↔ J108-1
Replace
SENSOR TR-0.
(p.361)
Replace
HARNESSASSY
XERO.
10 Check after replacement of MOTOR ASSY
P/R
Replace MOTOR ASSY P/R. (p.398)
Does the error recur when the power is turned
ON?
Go to Step [11]. End of
procedure
11 24 VDC power supply check to MOTOR
ASSY P/R
Disconnect P/J201 from MOTOR ASSY P/R.
The voltage of J201-1 ↔ J201-2 is 24 VDC?
Go to Step [12]. Go to Step [13].
12 Continuity check of HARNESS ASSY MAIN
Disconnect the P/J403 from PWBA MCU.
Is the continuity normal between all terminals
of J403 ↔ J200?
Replace PWBA
MCU. (p.404)
Repair broken
or shorted part.
13 Continuity check of HARNESS ASSY MAIN
Disconnect P/J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J502-9 ↔ J201-1
J502-10 ↔ J201-2
Replace LV/
HVPS. (p.407)
Repair broken
or shorted part.
14 5 VDC power supply check to PWBA MCU
The voltage of P410-3 ↔ P410-4 on PWBA
MCU is 5 VDC?
Replace PWBA
MCU. (p.404)
Go to Step [15].
15 Continuity check of HARNESS ASSY MAIN
Disconnect P/J410 from PWBA MCU and P/
J502 from LV/HVPS.
Do all of the wiring below have normal
continuity?
J410-3 ↔ J502-3
J410-4 ↔ J502-4
Replace LV/
HVPS. (p.407)
Repair broken
or shorted part.

Check my previous post that explains the E511 error in some cases:

http://www.fixya.com/support/t612937-service_reqd_e511

Epson CX11NF Error Message Service Req E511

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