Series 700
Maintenance Manual
Model 750
Rev H
Page 27
3.
Place Printer Chassis Assembly on top of Drawer Chassis to match the orientation
of the previous drawing. Locate the 2-pin JP1 found on the circuit board that is
mounted on the print mechanism. Connect the voltage meter leads as shown below.
Figure 13 Black Dot Sensor Adjustment: Potentiometer Location
4.
After connecting both the voltage meter’s leads, apply power to the printer.
5.
Insert a ticket into the printer exactely as it would feed when in normal operation.
Check to ensure that the Black Dot (top-of-form mark) is aligned with the sensor
and that it is fed beyond the sensor housing. The sensor housing is positioned next
to the 2 pin leads.
6.
Check the meter for a voltage reading 1.6V
7.
When adjusting the potentiometer the printer may start feeding the ticket.
If this happens press and hold the test switch button on the printer.
This will stop the tickets from advancing.
8.
If Voltage is below 1.6V turn the potentiometer clockwise until meter reading
is at 1.6V. If Voltage is above 1.6V turn the potentiometer counter-clockwise
until meter reading is at 1.6V
