Zebra KR203 Specifications download pdf (Page 35)

3/1/2011 KR203 Windows CE Software Integrator Guide P1028251-001 Rev. A

Appendix B

Programming Example

Background

In order to incorporate the way status monitoring works for the KR203 printer setup, it is

important to understand what happens in a kiosk when you print, and when status

monitoring should take place.

Status monitoring can be handled in two ways:

• Monitoring in the printing application.

• Monitoring in a separate application.

When monitoring takes place in the printing application, normally the printer is observed

before sending a print job to see if the printer is "OK" and then send the print job. After the

print job is signaled as being printed, the status is checked again to see if the printer has

any errors or if the paper has been taken, etc.

Monitoring in a separate application usually doesn't allow direct interaction with the printed

job so the printer is polled as often as possible to get most accurate information on what

the printer is doing. This is usually very time consuming and care must be taken to achieve

synchronization and control over the current print job.

Monitoring While Printing

Status monitoring has been implemented in the internal printing structure of the driver.

When a document is opened, printed, and closed, the driver will check the printer status

before and after printing and will also react to write errors if any occur. It will then set the

printer status and raise the error event.

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Zebra KR203 Specifications Page 35