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EasyCoder E4 Direct Protocol v2.10 – Programmer’s Reference Manual
46
Chapter 5
Feeding and Printing Commands
3. Batch Printing, cont.
Clearing the Image Buffer
The image buffer stores the bitmap pattern of the label between
processing and printing. The image buffer can be cleared partially
or completely using a
CLL
command.
CLL
[<fi eld>%]
<fi eld>
the same alphanumeric designator as in the
corresponding FIELDNO command, fol-
lowed by a mandatory % sign.
CLL
clears the image buffer completely
CLL <fi eld>%
clears the image buffer from the correspond-
ing FIELDNO command to the end of the
label
Complete clearing is useful to avoid printing a faulty label after
certain errors have occurred.
Partial clearing is used in batch printing when only part of the
label should be modifi ed between the copies. In this case, the
CLL
statement must include a reference to a fi eld, that is specifi ed
by a
FIELDNO
command. When a
CLL
command is issued,
the image buffer will be cleared from the specifi ed fi eld to the
end of the label.
<fi eld>% =
FIELDNO
<fi eld>
the same alphanumeric designator as in the
corresponding CLL command followed by a
mandatory % sign.
Example:
FT "Swiss 721 Bold BT"
↵
MAG 2,2
↵
PP 100,300
↵
PT "MONTH:"
↵
(kept in the image buffer for re-use)
PP 100,200
↵
A%=FIELDNO
↵
PT "JANUARY":PF
↵
(cleared from buffer after printing)
CLL A%
↵
PP 100,200
↵
PT "FEBRUARY":PF
↵
(cleared from buffer after printing)
CLL A%
↵
PP 100,200
↵
PT "MARCH":PF
↵
(cleared from buffer after printing)
CLL A%
↵