Programming instructions

Intermec Fingerprint 6.13 – Programmer's Guide

6. FILE SYSTEM, cont'd.

9. Transferring Files

Between Printers

Note:

Do not confuse CHECKSUM with CSUM,

see chapter 6.10 “Arrays”.

If you want to transfer a file from one printer to another printer, start

by transferring the file to the host. Then disconnect the first printer

and download the file to the second printer (or have the two printers

connected to separate serial ports). After the transfer of programs

between two connected printers is completed, you can check if the

transfer was successful by means of a CHECKSUM function.

CHECKSUM

The CHECKSUM function uses an advanced algorithm on parts of

the printer's internal code. Thus, calculate the CHECKSUM on the

program in the transmitting printer before the transfer. After the

transfer is completed, LOAD the program in the receiving printer

and perform the same calculation. If the checksums are identical,

the transfer was successful.

Note that the algorithm was changed in Fingerprint 4.0. Thus, the

CHECKSUM function will return other checksums in printers

using earlier versions of Fingerprint than 4.0 compared to printers

using 4.0 or later versions. If possible, use the same Fingerprint

version in both printers.

Example:

This example calculates the checksum in the lines 10–90000 in the

program "DEMO.PRG".

LOAD "DEMO.PRG"

PRINT CHECKSUM (10,90000)