Oce 3121 Technical & Service Manual page 328

Press the switch (SW3), on the RDF control PBA.
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LED1 is on when the RDF control starts to read data.
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Then, LED1 is off, and LED2 is on.
After LED2 is ON, place the paper in the document tray. This time in
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A4R/LTRR orientation. Adjust the side guides.
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Press the switch (SW3), on the RDF control PBA.
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LED1 and LED2 are on, on the RDF control PBA . The function test is fin-
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ished.
If an error is found, LED1 and LED2 start to flash.
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Shift the bits back to the initial positions. DIP switch (DSW1).
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326 TSM Océ 3121 Adjustments