Oce 3121 Technical & Service Manual page 327

With no document on the document tray, press the switch (SW3) on the RDF
2
control PBA.
LED 1 and 2 switch ON . On the RDF control PBA.
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If LED 1 and 2 fail to switch ON within 30 seconds, there is probably a fault
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in the sensor (S1), for document tray , or a fault on the RDF control PBA.
After checking that LED 1 and 2 have switched ON , press the switch (SW3)
3
on the RDF control PBA.
The two LED are switched off. The functional test is finished.
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Shift bit 4 to ON : DIP switch (DSW1) on the RDF control PBA.
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Adjusting the document width (VR1)
Prepare one sheet of A4 or LTR Paper.
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Remove the RDF cover. Set the DIP switch (DSW1) on the RDF control PBA
2
as follows.
Note: Different settings are used for different sizes of paper.
(using A4 paper)
(using LTR paper)
Place the paper on the document tray, in A4/LTR orientation. Adjust the side
3
guide to suit the paper.
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