Could it be something as simple as the RAM or processor of the machine running the app? I know when I run a big operation on a slow machine, printing is paused while the app completes the process - then when the app gives back the processing to the machine, the printing runs quickly.

Another thought... can you give a higher priority to the print spooler? Task Manager - right click spoolsv (or whatever it is named) and set priority.

-w-

>After a change of roll the ZM4 Plus printer prints 20-30 additional labels then the remainder of the job is deleted from the print queue on the computer to which the Zebra is attached.
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>The printer was set up by a Zebra agent in the UK - the problem occurred and the printer was replaced - the same thing is now happening with the replacement printer
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>The jobs are very long (we are currently using rolls of 500 labels) and could amount to 1000-5000 labels in a single run
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>During a very long run the printer will not print labels continuously but pauses very briefly after every 2nd or 3rd label - at the end of the run when the computer has finished loading the print queue, the printer speeds up and the labels print continuously
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>The host computer is running Windows 2000 Professional Service Pack 3 - printer spooling is enabled
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>The printing is run from Microsoft Visual FoxPro 6 Service Pack 5 - the program prints the lables by means of ? commands. We have run this quite happlity on other labels printers without a problem
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>Can you please help as we are rapidly running out of patience with this printer
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>Colin Northway