Technical data

Unit 6: Maintenance
S8400 Series Operator Manual
6-14 PN: 9001160 (C)
I-MARK/PAPER-END SENSOR SENSITIVITY
This sensor adjustment regulates penetrating ability for media referencing. 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 so the white backing paper may be registered by the I-mark 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 reading is above 1.0V.
Figure 6-14, Level Offset Menu Screen
4. Manually position the media so that its I-mark 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 previ-
ously 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.
NOTE: When operating with “gap labels,” a Level Offset value between 10
and 15 will normally eliminate any false paper end errors.
SENSOR LEVEL
I-MARK X.XV
LEVEL OFFSET XX
SENSOR LEVEL
I-MARK X.XV
SLICE LEVEL XX