Epson WF-C5790 Service Manual page 185

EPSON WF-C5790/WF-C5790a/WF-C5710/ET-8700/WF-C5210/WF-C5290/WF-C5290a
3. Line Voltage (Offhook)
(Line voltage check during off-hook when the line is connected)
3-1. The "Line Voltage (Offhook)" screen shown below appears.
FAX Line Measurement
3. Line Voltage (Offhook)
Please push "Run".
Run:[#] / Skip:[*]
Figure 4-18. Line Voltage (Offhook) Work Procedure (1)
3-2. Make sure the telephone line is connected, and then press the [#] button.
3-3. The line voltage check results are displayed as shown below.
FAX Line Measurement
3. Line Voltage (Offhook)
Now measuring...
6.0 [V]
If you want to go to next step,
push "Run".
Run:[#]
Figure 4-19. Line Voltage (Offhook) Work Procedure (2)
3-4. Press the [#] button and proceed to the check in the next step.
The [#] button must be pressed after two to three seconds
C H E C K
P O I N T since the line voltage fluctuation has stabilized, or when the
fluctuation is more or less understood if it continues.
*1: The values shown on the screen are for reference.
Troubleshooting
4. Line Status (DT/BT) (Dial tone/busy tone status check)
In this step, the two states of dial tone and busy tone are
C H E C K
P O I N T checked and recorded.
The recording of the status check results is performed when
the # button is pressed in the respective status.
Since the dial tone shifts to busy tone after a fixed time has
elapsed, note that if recording is not performed during the
dial tone, the check results cannot be correctly recorded.
4-1. Next, the "Line Status (DT/BT)" screen shown below appears.
*1
Figure 4-20. Line Status (DT/BT) Work Procedure (1)
4-2. Press the [#] button, and then perform the DT (dial tone) status check.
Fax Troubleshooting
FAX Line Measurement
4. Line Status (DT/BT)
Please push "Run"
Run:[#] / Skip:[*]
Revision A
185
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