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Unit 6: Maintenance
SATO XL400-410e Operator Manual PN 9001135A Page 6-17
PITCH SENSOR ADJUSTMENT (SIDE HOLE MEDIA)
This sensor adjustment regulates penetrating ability for media referencing. Penetration
modification is performed via two potentiometers that is part of the potentiometer complex
located behind the access panel on the left side of the printer.
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.
These activities require the use of a multimeter and may be perfomed with or without the
assistance of the SATO Test Module. The test module is a purchase option.
Perform the steps below using the test module and refer to Figure 6-11 for visual assistance.
1 Detach the access panel located on the left side of the printer.
2 Adjust the VR5 and VR12 potentiometers fully counter clock-wise.
3 Connect the test module to the available test connector.
4 Connect the multimeter ground probe to the pin identified as GRD on the test module.
5 Connect the multimeter positive probe to the pin identified as SIG.
6 Turn the printer on and rotate the test module dial to the 7 position.
7 Physically place the media’s reference point over the pitch sensor.
8 Adjust the VR5 potentiometer until the multimeter displays a value less than +0.5V.
9 Relocate the media so the paper portion is oriented over the pitch sensor.
10 Regard the multimeter to determine the second measurement is greater than +2.0V.
11 Repeat steps 6 through 11 until a minimum difference of 1.5V is achieved.
12 Connect the multimeter positive probe to TP1 connector and the negative probe to TP4.
13 Adjust the VR12 potentiometer so the multimeter display indicates a nominal voltage value.
14 Begin normal printing to ensure proper adjustment.
Multimeter Alone
Sensor adjustment may be performed by using a multimeter without the assistance of the test
module. To perform this task the multimeter probes must be attached to the correct connector
pins of the test connector. Connect the multimeter positive probe to pin 1A and the negative
probe to pin 4B. Refer to Figures 6-11 and 6-12 for visual assistance.
NOTE: The VR12 potentiometer establishes the threshold value which is the
nominal value (midway between the lower and upper values).
SIDE HOLE PEFERENCE CHART
MEDIA POTENTIOMETER DIAL TEST PINS VOLT VALUE
Side Hole
Sensor: VR5
Threshold: VR12
8
Positive Probe: 1A, TP1
Negative Probe: 5B, TP4
> +0.5V
< +2.0V