Instruction manual

Checking Current Buffer Sizes
Send a configuration upload packet to check the sizes of your current
buffers. See “Configuration Packet Header” for more information. After you
check your current buffer sizes you can begin reallocating memory.
If you want to increase your image buffer and you will not be using scalable
fonts, add that memory into your image buffer.
Example
{I,M,R,R,20 p Receive buffer 2K
M,T,R,10 p Transmit buffer 1K
M,D,R,80 p Downloadable fonts 8K
M,V,R,160 p Scalable fonts buffer 16K
M,I,R,3200 p } Image buffer 320K
Make sure memory is available before adding memory to a buffer. In the
above example, if the image buffer (M,I,R,3200) was defined before the
downloadable fonts and scalable fonts buffers (M,D,R,80 and M,V,R,160)
were defined, an error would have occurred.
About Memory Buffers
Transmit Buffer Used to send ENQ, job, and upload responses. This
buffer must be allocated as volatile (R) RAM.
Receive Buffer Used to save data received from the host before it is
processed by the printer. Changing this buffer size
affects the amount of data the printer can receive
without using flow control. This buffer must be allocated
as volatile (R) RAM.
Image Buffer Used to image the current format. The printers support
two 4-inch by 8-inch buffers. You can create an image
up to 16 inches long without reallocating memory. The
Image Buffer is cleared after a printer reset.
Configuring the Printer 2-27