EPSON AcuLaser CX11/CX11F Revision B
TROUBLESHOOTING Printer 235
FIP-63
 Panel Message
îš„ B Open
 Possible parts that caused the error
 Troubleshooting
îš„ COVER TOP îš„ COVER FRONT ASSY U
îš„ COVER FUSER îš„ SWITCH ASSY TOP
îš„ SWITCH-INLK FRONT îš„ SWITCH-INLK FUSER
îš„ PWBA MCU îš„ LV/HVPS
Step Check Yes No
1
Check of open/close state of COVER
Are all the COVER TOP, COVER FRONT
ASSY U, and COVER FUSER closed?
Go to Step [3]. Close the cover.
Go to Step [2].
2
Does the error recur when the power is
turned ON?
Go to Step [3]. End of procedure
3
Shape check of COVER TOP
Is the actuator of COVER TOP that presses
SWITCH ASSY TOP deformed or damaged?
Replace COVER
ASSY TOP.
(p.308)
Go to Step [4].
Actuator
4
Shape check of COVER FRONT ASSY U
Is the actuator of COVER FRONT ASSY U
that presses SWITCH-INLK FRONT deformed
or damaged?
Replace COVER
FRONT
ASSY U. (p.318)
Go to Step [5].
5
Shape check of COVER FUSER
Is the actuator of COVER FUSER that presses
SWITCH-INLK FUSER deformed or
damaged?
Replace COVER
FUSER.
(p.311)
Go to Step [6].
6
Operation check of SWITCH ASSY TOP
Disconnect P/J116 from SWITCH ASSY TOP.
Is there continuity on P116-1 ↔ P116-3 when
SWITCH ASSY TOP is pressed, and does the
continuity stop when the switch is released?
Go to Step [7]. Replace
SWITCH ASSY
TOP. (p.314)
7
Operation check of SWITCH-INLK FRONT
Disconnect P/J115 from SWITCH-INLK
FRONT.
Is there continuity on P115-1 ↔ P115-3 when
SWITCH-INLK FRONT is pressed, and does
the continuity stop when the switch is released?
Go to Step [8]. Replace
SWITCH-INLK
FRONT. (p.325)
Step Check Yes No
Actuator
Actuator
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