Chapter 7 — Commands
ESim for the PC4 and PF8 Printer Programmer’s Reference Manual 85
JB - Disable Top of Form Backup
Purpose: This command disables automatic top of form backup of the
media.
Syntax: JB
Remarks: By default, top of form backup feeds out an extra amount of
media after printing so that the label can be torn or peeled off
properly and then retracts the media so that printing can start at
the top of the label.
Top of form backup cannot be used if the printer has the optional
cutter installed. To disable top of form backup, send an O
command followed by a JB command.
The JB command disables top of form backup. The printer stops
feeding media when the end of the label aligns with the printhead
dot line. Any j command is ignored, although it is stored in
memory and can be enabled again using a JF command.
JF - Enable Top of Form Backup
Purpose: This command enables automatic top of form backup of the
media.
Syntax: JF
Remarks: Top of form backup is used in connection with the j command.
The printer feeds out enough extra media after printing a label so
that it can be torn, peeled, or cut off properly.
By default, top of form is enabled so that is the media is retracted
far enough to begin printing at the top of the next label.
Top of form backup can be disabled by a JB command. Any j
command is ignored and the printer stops feeding when the end
of the label becomes aligned with the printhead dot line.
If the optional cutter is installed on the printer, the JB command
must be preceded by an O command. However, the j command
is kept stored in memory and can be enabled again using a JF
command.
Activating the cutter using an OC command has the same effect
as issuing a JF command.
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