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Page: 148
Service Manual for OL400e/OL410e/OL410e-PS
Chapter 3 Maintenance & Disassembly
Serial Interface Loop test
General Information
The serial loop test checks the functions of the serial interface, without connecting the
unit to a computer. Data is sent and received through the connector. The test runs
independently of the Menu Level 2 interface selection.
Procedure
To run the serial interface loop test, perform the following procedure.
- Close the stacker cover.
- Install the paper cassette tray.
- Clear all error messages displayed on the operator panel.
You must have one of the following.
- 9 pin loopback test connector
or
- 9 to 25 pin adapter and 25 pin loopback test connector
- Place the 9 pin loopback test connector or the 9 to 25 pin adapter
and 25 pin loopback test connector on the serial port. The configuration is
shown below.
- Press and hold RECOVER / Reset while powering ON the unit.
- Continue to hold RECOVER / RESET through both panel displays.
The operator panel displays the following message for approximately two seconds.
88888888
88888888
- Continue to hold RECOVER / RESET until the operator panel displays...
SYS MNT
- Press MENU 1 / Menu 2.
Содержание OL400e Series
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