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Unit 6: Maintenance
S8400 Series Operator Manual 6-15 PN: 9001160B
GAP SENSOR SENSITIVITY
This sensor adjustment regulates penetrating ability for media referencing. To establish penetration, upper and
lower voltage levels must be set and the difference between the two voltage levels should be maximized for
optimum performance.
For proper performance, the sensor must have a voltage difference greater than 0.8V between high and low. If
performing the following procedure does not result in acceptable voltage levels, clean the window over the sensor’s
eye.
1 Load printer with label media (backing + label) so as to be registered by the gap sensor. Power on the printer.
2 Using the printer’s operator panel, access the Service Mode and then proceed to the Level Offset menu
screen (Figure 6-14).
3 Using the printer’s operator panel, adjust the level offset so the sensor level is above 1.0V.
Figure 6-14, Level Offset Menu Screen
4 Peel a label from the paper backing and place the backing paper so that its gap may be registered by the
sensor.
5 Read the sensor level now displayed to ensure this reading is below 0.5V and the high value that was
previously registered is at least 0.8V greater than the low reading just read.
6 Add these readings and divide them by two. Record the result.
7 Advance to the Slice Level menu screen (Figure 6-15).
Figure 6-15, Slice Level Menu Screen
8 Read the slice level displayed to ensure the slice level is equal to this value.
9 Repeat steps 3 through 8 as required.
SENSOR LEVEL
GAP X.XV
LEVEL OFFSET XX
SENSOR LEVEL
GAP X.XV
SLICE LEVEL X.XV