Zebra KR403 Especificações descarregar pdf (Página 60)

ZPL Basics

The ZPL Format (Receipt Form or Template)

P1026208-001 Rev. B Software Integrator Guide 10/29/2010

The ZPL Format (Receipt Form or Template)

The ZPL format (form) is the basic building block used to control and print with your Zebra

kiosk printer. It can be used to simply print a receipt or in contrast, recall and process a

sequence of stored formats (forms) in the printer, all from a single format (form). Formats

can be created (and reused) to do common or repeated functions to the printer: e.g.

deleting all objects stored in B: memory or printer configuration settings for custom pre-

printed media. ZPL format (form) and the format command structure’s capabilities are

designed to minimize data communications traffic and file size.

A format’s (form’s) most basic structure initializes the printer to process format commands,

do one or more format command processes to set printer actions or place objects in the

print image map, and to finish the format (form). When the printer has finished processing

the format, the printer will print any object placed in the image map (if any), run printer

actions, and then it clear the image map and temporary commands.

ZPL Format Structure Guidelines

The ZPL programming is designed to minimize the amount of programming (coding) and

data communication traffic needed to operate and print receipts, as well as, code reuse.

To facilitate this, the ZPL command and parameter operations includes the ability to save

certain settings for use between receipt (or label) formats or in some cases, even through

a power cycle or reset. Other commands can use commands that provide global settings

or parameters for use one or more times later within the receipt format by the printer to

create objects in the image map. These global settings and parameters can be changed

multiple times. Other commands describe the receipt (or label), image map (where print

objects get placed on the receipt), special print effects, and media handling (print number

of copies, cut, present receipt for removal, etc.). The code minimizing design and order

dependence of the ZPL format require a structural sequence to work and work

consistently from format to format.

Figure 5-4 • Basic ZPL Format

^XA – Start format command.

All other format commands (other than ^FX)

are placed between the ^XA and ^XZ and

processed by the printer.

Objects placed in the print image are

printed when the printer processes the

format’s (form’s) last command, ^XZ.

^XZ – End format command.

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Zebra KR403 Especificações Página 60