Star Dot Impact Printer Specifications page 77

ESC @
[Name] Command initialization
[Code] ASCII
Hexadecimal
Decimal
[Defined Area] ---
[Initial Value] ---
[Function] Initializes each command after printing data in the line buffer.
DIPSW and memory switch re-read is not performed.
The following shows the specifications that are not initialized by this command.
• DC1 and DC3 select/deselect status
• ESC BEL external device drive conditions
• Auto status valid/invalid conditions
• Sets to enable, disable black mark detection
ESC U n
[Name] Select printing direction
[Code] ASCII
Hexadecimal
Decimal
[Defined Area] 0 ≤ n ≤ 2
48 ≤ n ≤ 50 ("0" ≤ n ≤ "2")
[Initial Value] Standard Specifications (Memory switch: Sets SBCS) : n = 0
Japanese Character Specifications (Memory switch: Sets DBCS) : n = 2 or n = 0 (*1 Depends on the model)
[Function] Executes print direction specified by this command after printing data in the line buffer.
n Printing Direction
0, 48 Specify bi-directional printing
1, 49 Specify uni-directional printing
Specify ANK bi-directional, Japanese character single direction (only on models in-
2, 50
stalled with Kanji characters)
Bi-directional printing is faster than uni-directional printing.
With uni-directional printing, printing is performed only when the print head moves from left to right.
When n = 2, the printer prints ANK continuous printing bi-directionally. Continuous printing including Kanji
characters is done in multiple passes on the first line only when the head moves from the left to the right. On
the next line, it prints in a multiple of passes only when the head moves from the right to the left.However,
if there are ruled lines in one line of print, or if the paper feed amount after printing exceeds 1/6 of an inch,
printing is uni-directional from the left to the right.
Regarding n = 1, depending on the model, settings can be made valid or invalid using the memory switch.
See each printer's product specifications manual for details on the memory switch settings.
(*1) Depends on the model
n = 2: Models that use a DC motor for the carriage motor.
n = 0: Models that use a stepping motor (logical seeking) for the carriage motor.
STAR Command Specifications
ESC @
1B 40
27 64
ESC U n
1B 55 n
27 85 n
3-69
Rev. 0.70