Specifications

205
ZPL Commands
~JS
9/15/06 ZPL II Programming Guide 45541L-004 Rev. A
~JS
Change Backfeed Sequence
Description The ~JS command is used to control the backfeed sequence. This command
can be used on printers with or without built-in cutters.
These are the primary applications:
• to allow programming of the rest point of the cut edge of continuous media.
• provide immediate backfeed after peel-off when the printer is used in a print/apply
application configuration.
This command stays in effect only until the printer is turned off, a new
~JS command is sent,
or the setting is changed on the control panel. When a
~JS command is encountered, it
overrides the current control panel setting for the Backfeed Sequence.
The most common way of eliminating backfeed is to operate in Rewind Mode. Rewind Mode
does not backfeed at all. After a label prints, the leading edge of the next label is placed at the
print line. This eliminates the need to backfeed and does not introduce a non printable area at
the leading edge or bottom of the label. It also does not allow the label to be taken from the
printer because it is not fed out from under the printhead.
Running in another mode with backfeed turned off allows the label to be removed and
eliminates the time-reduction of the backfeed sequence.
Format ~JSb
This table identifies the parameters for this format:
Comments When using a specific value, the difference between the value entered and 100
percent is calculated before the next label is printed. For example, a value of 40 means 40
percent of the backfeed takes place after the label is cut or removed. The remaining 60 percent
takes place before the next label is printed.
Parameters Details
b = backfeed order in
relation to
printing
Accepted Values:
A = 100 percent backfeed after printing and cutting
B = 0 percent backfeed after printing and cutting, and
100 percent before printing the next label
N = normal — 90 percent backfeed after label is printed
O = off — turn backfeed off completely
10 to 90 = percentage value
The value entered must be a multiple of 10. Values not
divisible by 10 are rounded to the nearest acceptable value.
For example,
~JS55 is accepted as 50 percent backfeed.
Default Value:
N