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Defining the Backfeed Control Packet
Use the backfeed control packet (G) to enable or disable the
backfeed option, set the dispense position and the backfeed
distance. Backfeed works by advancing each printed label to the
desired dispense position. Once that label is removed, the next
label to be printed is backed up underneath the printhead. In
continuous mode, only the last label in the batch is advanced to
the dispense position. You may need to adjust the dispense
position to allow labels to be removed, die cut labels to be
removed easily, or to prevent them from falling off.
Do not use backfeed with supplies less than 0.75 inches.
The dispense position and backfeed distance are optional
parameters and do not have to be specified. However, they allow
for greater precision when positioning the supply. You can’t
change the backfeed distance while the printer is active.
Syntax
{
I
,G,action,dis_pos,bkfd_dis
p
}
G1. G Backfeed Control Packet
G2. action Action. Options:
0 disable backfeed (default)
1 enable backfeed (use on any printer without a knife)
G3. dis_pos Dispense Position. Adjusts the stopping point of the label. 0
or 10 - 200 dots (default 65 dots).
G4. bkfd_dis Backfeed Distance. Amount to move label backwards. 0 or
10 - 200 dots (default 65 dots). Cannot be greater than the
dispense position.
The backfeed distance should equal the dispense position.
An exception is if you are tearing instead of peeling. Then,
the backfeed distance must be 40 dots (.150 inches) less than
the dispense position. However, you will have a 30 dot
non-print zone on your supply. The 30-dot difference
accounts for improper tearing of butt cut supplies, because
you do not want any exposed adhesive under the printhead.
Example
{
I
,G,1,50,10
p
}
Enables backfeed and sets the dispense position to 0.25 inches
(50/203) and the backfeed distance to 0.05 inches (10/203).
Configuring the Printer
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