Programming instructions

Intermec Fingerprint v7.61 – Programmer’s Reference Manual Ed. 7254
Chapter 2 Program Instructions
SYSVAR, cont.
Remarks, cont. 19. Type of error message (Set or Read)
Four types of error messages can be selected:
SYSVAR(19) = 1 <string> in line <line> (default)
for example “Invalid font in line 10”
SYSVAR(19) = 2 Error <number> in line <line>: <string>
for example “Error 19 in line 10: Invalid font”
SYSVAR(19) = 3 E<number>
for example “E19”
SYSVAR(19) = 4 Error <number> in line <line>
for example “Error 19 in line 10”
The presently selected type of error message can also be read and is returned as
a numeric value (1-4), for example by PRINT SYSVAR(19).
20. Direct or transfer mode (Read only)
SYSVAR(20) allows you to read if the printer is set up for direct thermal
printing or thermal transfer printing, which is decided by your choice of
paper type in the printer’s setup.
The printer returns:
0 = Direct thermal printing
1 = Thermal transfer printing
21. Printhead density (Read only)
SYSVAR(21) allows you to read the density of the printer’s printhead,
expressed as number of dots per millimeter.
22. Number of dots (Read only)
SYSVAR(22) allows you to read the number of dots in the printer’s
printhead.
23. Transfer ribbon sensor (Read only)
SYSVAR(23) allows you to read the status of the transfer ribbon sensor
in thermal transfer printers.
The printer returns:
0 = No ribbon detected
1 = Ribbon detected
24. Power up since last SYSVAR(24) (Read only)
This system variable is important when using the Intermec Direct Protocol.
At power up, all data not saved as programs, fi les, fonts or images will
be deleted, and most instructions will be reset to their respective default
values. SYSVAR(24) allows the host to poll the printer to see if a power up
has occurred, for example because of a power failure and, if so, download
new data and new instructions.
The printer returns:
0 = No power up since last SYSVAR(24)
1 = Power up has occurred since last SYSVAR(24)