Star Dot Impact Printer Specifications page 84

ESC FF n1 n2
[Name] Set top of form amount after detecting black mark
[Code] ASCII
Hexadecimal
Decimal
[Defined Area] 0 ≤ n1 x 256 + n2 ≤ 2047 (however, less that the length between marks)
[Initial Value] Memory switch setting
[Function] This command sets the amount for top of form after black mark detection (n1 x 256 + n2) to steps.
(1 step = 1/144 of an inch)
The setting value of this command affects the printer initialization command (ESC @).
If the parameter is outside of the defined range, this command is received and discarded.
The settings of top of form by this command are valid in executing the top of form operation using the FF (top
of form operation) and pressing the Feed switch.To make the setting value valid, set this command before the
execution command.
The paper position varies according to the printer type.
See each printer's product specifications manual for details on the memory switch settings.
STAR Command Specifications
ESC FF n1 n2
1B 0C n1 n2
27 12 n1 n2
3-76
Rev. 0.70