Series 700
Maintenance Manual
Model 750
Rev H
Page 25
Black Dot Adjustment: Top of Form Preprinted Indicator
For the printer to sense when a ticket has been indexed to the printing position, a
Black-Dot, Top of Form indicator is used. The 11.5 mm area in line with the top of
form indicator and the ticket edge (keep-out zone) must remain clear, as the Ticket
Out Sensor will read that area while the ticket is printed and presented.
6.00 mm
11.50 mm
3.50 mm
TOP OF FORM
INDICATOR
USABLE AREA
KEEP-OUT
ZONE
3.00 mm
Figure 11 Location of Top of Form Indicator on Back of Ticket
Determining if Black Dot (top-of-form mark) needs adjustment
To determine if the black dot sensor is adjusted correctly, press the ticket feed switch.
When this switch is pressed the printer will advance one ticket thru the print mechanism.
The ticket will appear out the ticket exhaust area and will have a length of approximately
0.25 inches. If the ticket length is more or less than 0.25 inches the black dot sensor will
require adjustment.
