Epson 2070 Service Manual - Page 129

Abnormal Paper Feed Operation 2-1, Flowchart 2-1

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LQ-2070 Service Manual 2. Abnormal Paper Feed Operation 2-1 Troubleshooting Continued from flowchart 2. When paper is loaded, N O is it ejected automatically? YES Is cut-sheet paper loaded correctly, but continuous paper not loaded at all ? YES Is CN7 NO connected correctly ? Connect CN7 correctly. YES NO Is the YES problem corrected ? Is NO the FFC cable OK? END Replace the cable YES Dose NO the PWsensor work correctly ? (See Table 5-2) Is the problem corrected ? YES END Replace the cable YES NO Is the YES problem corrected ? END Replace the C186 MAIN baord. Is CN12 or CN16 connected correctly ? YES NO Connect CN12 or CN16 correctly. NO Is the YES problem corrected ? END Dose the release NO sensor operated correctly (See table 5-2) ? YES NO Replace the C186 MAIN baord. Replace the sensor. Is the problem corrected ? YES END END END Figure 5-4 Flowchart 2-1 Rev.A 5-7

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2. Abnormal Paper Feed Operation 2-1
NO
YES
YES
NO
NO
NO
YES
END
Continued from
flowchart 2.
When
paper is loaded,
is it ejected
automatically?
Is
cut-sheet
paper
loaded
correctly, but continuous
paper not loaded
at all ?
Is CN7
connected
correctly ?
Connect CN7
correctly.
Is the
problem
corrected ?
Connect CN12 or
CN16 correctly.
connected
correctly ?
or CN16
Is
the FFC
cable OK?
NO
Replace the cable
YES
YES
END
Is the
problem
corrected ?
Dose
the PWsensor
work correctly ?
(See Table 5-2)
Replace the cable
END
Is the
problem
corrected ?
YES
YES
YES
NO
NO
Replace the C186
MAIN baord.
END
Dose
the release
sensor operated
correctly (See
table 5-2) ?
Replace the C186
MAIN baord.
END
Is the
problem
corrected ?
END
NO
YES
Replace the
sensor.
Is the
problem
corrected ?
END
NO
YES
NO
Is CN12
YES
YES
Figure 5-4 Flowchart 2-1
LQ-2070 Service Manual
Troubleshooting
Rev.A
5-7