Paxar 9412, 9413 F f e r a l l o c a t i o n C o n s i d e r a t i o n s, R,N,20 p M,T,N,60 p

B u f f e r A l l o c a t i o n C o n s i d e r a t i o n s

Keep these items in mind when allocating memory.

uDo not allocate more memory than what is available.

uFree memory from one buffer before you add it to another buffer.

uReallocate all the buffers if you need to reallocate any buffer.

uSend all buffer (re)allocations in one packet. The printer evaluates each individual buffer allocation separately. If one buffer allocation is invalid, the entire packet is invalid. For example, if you send

{I,M,R,N,20 p M,T,N,60 p

...}

the printer ignores the entire packet, because the second line allocates 6K for the transmit buffer, and 4K is the maximum for that buffer. If you define a buffer size that exceeds the maximum value, an error occurs. However, no information is lost.

uWhenever the printer accepts a memory configuration packet, it takes effect immediately, causing a printer reset. Any information contained in the buffers is lost. Resend your formats, batches, graphics, or fonts to the printer.

uIf you remap your image buffer, make sure the length and width specified in your format header are not too large for the current image buffer. In other words, if you remap for a 4 x 4 inch label, you cannot print a 4 x 6 inch label without receiving an error, until you change your format header or increase your image buffer.

Configuring the Printer 3-21