Epson EPL-N3000 - Sensor Regi

EPSON EPL-N3000/AcuLaser M4000N Revision C
Troubleshooting Troubleshooting for Individual Units 117
Confidential
3.4.5 SENSOR REGI
Table 3-64. Troubleshooting for SENSOR REGI
Step Action and Question Yes No
Parts below can be the source of this error (Chapter 4 Disassembly and Assembly)
• SENSOR REGI (p.221)
• ACTUATOR B
• 150 FEEDER ASSY (p.211)
• HARNESS ASSY CHUTE
• HARNESS ASSY TRAY1
•HVPS/MCU (p.301)
•LVPS (p.287)
1
ACTUATOR B
1. Remove the 150 FEEDER ASSY. (p.211)
2. From the paper inlet side in each of the area under
the 150 FEEDER ASSY and the area at the side of
it, push the ACTUATOR B with a mini screwdriver
or the like and check whether they operate smoothly.
3. Check the shape of the flag of the ACTUATOR B.
♦Does the Actuator B operate smoothly, and does the
flag of the Actuator B have a proper shape to
intercept the light to the detecting point of the
sensor?
Go to Step 2
Replace the
ACTUATOR
B
2
SENSOR REGI
1. With the 150FEEDER ASSY removed, connect the
connector J241 of the HARNESS ASSY TRAY1 to
the SENSOR REGI.
2. Remove the Imaging Cartridge.
3. Close the COVER OPEN.
4. While moving the Actuator Regi A with a mini
screwdriver or the like, measure the voltage between
P/J24-11 ↔ P/J24-10.
♦0 VDC between P/J24-11 ↔ P/J24-10 when the
ACTUATOR B is pressed and 3.3 VDC when it is
released?
Replace the
HVPS/MCU
Go to Step 3
3
Power supply to the SENSOR REGI
1. Remove the Imaging Cartridge.
2. Check the voltage between P/J24-9 ↔ P/J24-10.
♦3.3 VDC between P/J24-9 ↔ P/J24-10?
Go to Step 4 Go to Step 6
4
Continuity of the HARNESS ASSY CHUTE
1. Disconnect the connector P/J24 on the HVPS/MCU.
2. Disconnect the P/J245.
3. Check continuity of the following wiring:
J24-9 ↔ J245-10
J24-10 ↔ J245-9
J24-11 ↔ J245-8
♦Does each wire between J24 ↔ J245 have
continuity?
Go to Step 5
Replace the
HARNESS
ASSY
CHUTE
5
Continuity of the HARNESS ASSY TRAY1
1. Remove the SENSOR REGI. (p.221)
2. Disconnect P/J245 from the HVPS/MCU.
3. Check continuity between the following terminals:
P/J245-4 ↔ P/J241-3
P/J245-5 ↔ P/J241-2
P/J245-6 ↔ P/J241-1
♦Is there continuity in each wiring between P/J245 ↔
P/J241?
Go to Step 7
Replace the
HARNESS
ASSY TRAY1
6
Continuity of the HVPS/MCU
1. Disconnect P/J11 from the HVPS/MCU.
2. Check continuity between P/J11-16 ↔ P/J24-9.
♦Is there continuity between P/J11-16 ↔ P/J24-9?
Go to 3.4.1
LVPS (p.111)
Replace the
HVPS/MCU
7
SENSOR REGI (2)
1. Replace the SENSOR REGI. (p.221)
♦Does the problem still occur?
Replace the
HVPS/MCU
Problem
solved
Table 3-64. Troubleshooting for SENSOR REGI (continued)
Step Action and Question Yes No