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SR200 & SR300 Printer SDK Guide

Page 3

About the API

This section provides background information about the printer driver API.

Command Structure

The structure of a command to the printer is according to the SCSI rule. A printer

connected a PC is specified by both the Slot number and the ID of the printer. It

makes it possible to control up to 10 printers. Most functions require both the Slot

number and ID to specify the printer. The Slot number is a value decided by the

system environment, and the ID is the unit number of the printer minus 1 (one).

Card Position

The card must be in the correct position when you issue a printer command. If it is

not, the command might fail. For example, the card must be at the retransfer

position when you issue the Retransfer command, which retransfers the image

from the INTM film to the card. You can use the Read Position command to identify

the card position before issuing a command. The following table explains the card

positions.

Card Position Explanation

Retransfer Position The position to start Retransfer

Contact IC encoder position The position to do Contact IC encoding.

No-Contact IC encoder position The position to do No-Contact IC encoding.

MAG encoder position The position to do MAG encoding.

Print Area

The printer uses the Retransfer method, which prints on the retransfer (INTM) film

and then the printer transfers the image to the card. The print area on the

Retransfer film is larger than the actual print area on the card, as shown below.

(0, 0)

Print area

The direction of printing

on the film.

1.0±0.5mm

56.0mm (664 Pixels)

54.0mm

85.6mm

87.5mm (1036 Pixels)

(1035, 663)

1 2 3 4 5 6 7 8 9 10 11 12 ... 75 76

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DataCard SR300 Manual do Utilizador Página 7