ESC/POS Command Manual
31
images specified by command FS p.
A definition data of a NV bit image consists of [xL xH vL vH d1...dk].
Therefore, when only one NV bit image is defined n=1, the printer
processes a data group [xL xH yL yH d1...dk] once. The printer uses
([data:(xL + xH
×
256)
×
(yL + yH
×
256)
×
8] + [header:4]) bytes of NV memory.
The definition area in this printer is a maximum of 2M bits (256K bytes).
This command can define several NV bit image, but cannot define a bit
image data whose total capacity [bit image data + header] exceeds 2M bytes (256K bytes).
The printer is busy immediately before writing into NV memory, regardless
of the setting of DIP switch 2-1.
The printer does not transmit ASB status and perform status detection
during processing of the command even when ASB is specified.
When this command is received during macro definition, the printer ends
macro definition, and begins performing this command.
Once a NV bit image is defined, it not erased by performing ESC @, reset, and power off.
This command performs only definition of a NV bit image and does not
perform printing. Printing of the NV bit image is performed by the FS q command.
[Notes]
Frequent write command execution may cause damage the NV memory.
Therefore, it is recommended to write the NV memory 10 times or less a day.
The printer performs a hardware reset after the procedure to place the
image into the NV memory. Therefore, user-defined characters,
downloaded bit image, and macros should be defined only after
completing this command. The printer clears the receive and print buffers
and resets the mode to the mode that was in effect at power on. At this time,
DIP switch setting are checked again.
n is the number of the NV bit
[Reference]
FS p
[Example]
When
x
L = 64,
x
H = 0,
y
L = 96,
y
H = 0
