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After pressing the Start/Stop key, the run in test will start/stop. The machine stops automatically if the counter value
is zero.
If some covers are removed (but not the safety covers!), you can watch the sequence of the various mechanical
actions, which reflect the sequence of events during normal operation.
DFC test
The DFC screen shows the real-time DFC output voltage, expressed in millivolt. For testing the DFC it is best to
start the system with paper underneath the DFC sensor (and covering the feeder photocell too). This results in
starting the adjustment procedure.
The voltage should be approx. 4.1 V when a single sheet (80 grams/20 lb) is below the sensor (the voltage of a
non-adjusted DFC, without paper, is approx. 5 V). When this sheet is removed the voltage will drop with approx.
0.25 V. The voltage drop depends on the thickness/quality of the paper. The table gives an indication how much
the voltage will drop with the relevant paper qualities.
Voltage drop
(V)
Paper quality
(g/m2)
0.2
65
0.25
80
0.35
120
0.5
160
Although the readings are correct it still could be that the DFC is not functioning correctly in AUTO mode. It is
recommended to clean the moving parts of the DFC to make sure that dust or paper particles are not affecting the
DFC functioning.
If you restart the system, the DFC voltage is erased from memory, has no reference and shows some unexpected
value. After a first sheet is passed through the feeder the DFC will be calibrated at about 3.96 voltage. For the next
sheet the DFC is functioning correctly.
During normal operation the system automatically recalibrates. Manual DFC testing and calibration can be easily
done by removing the cover (with an opened loc) and manually turning the feeder separation gear. In the service
menu DFC test menu, the voltage can be verified.
Touch screen
In the Touch screen tests menu you can verify the correct functioning of the touch screen. If you press [Test
touchscreen], a graphical object will be displayed on the screen at each point where the screen is touched. The
screen can be touched with either a finger or a (non-scratching) pen.
If the area touched does not correspond with the displayed object, the touch screen should be calibrated. To do
this, use the [Calibrate touchscr.] button and follow the commands on the screen.
Envelope only mode
If you set the envelop only mode to On, all jobs will only process envelopes. Use this mode for a service test without
documents.
Stop key
For testing purposes it is possible to create a stop key in the user interface (Mode is On). This stop key appears as
soon as the system runs a job. Deactivate this key (Mode is Off) when you have finished servicing the system.
If you press this extra stop key the system does not stop immediately, but on the first opportunity while processing.
Because of this there can be incomplete sets in some parts of the system.
34
4
063.1
Service
Guide
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