bh1s.bk : bh1sdiag.doc 12 Thu Apr 20 12:42:16 1995
12
Service Manual
Power-On Self Test (POST)
When you turn the printer on, it performs a Power-On Self Test. Check
for correct POST functioning by observing the following:
1. 1 1/2 rows of pels appear on the display and then clear.
2. Diamonds fill the display and then clear.
3. The fuser lamp and the fan turn on. [Performing Self Test]
appears on the display.
Note: The printer may be idle for up to 60 seconds as the fuser
warms to operating temperature. Printer idle time is shorter if the
fuser is already warm.
Note: If the duplexer is installed, the duplex drive motor turns
on for about 5 seconds just before the Ready screen appears.
4. The ready screen appears on the display.
Note: Diagnostics menu appears if you are in diagnostic mode.
5. The drive motor and the mirror motor start to run. The fan starts
to run at high speed.
6. The drive motor runs for approximately 10 seconds. The fan
runs at high speed, then switches to low speed.
If the printer completes all these steps and no error messages are dis-
played, the printer has successfully completed the POST.
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Страница 154: ...138 Service Manual Assembly 8 Standard Paper Tray 200 sheet ...
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