CHAPTER 5 COMMAND SEQUENCE FLOW

5.1 Raster Graphics Modes

The following three compression modes are available for raster graphics commands:

1)

Non-compressed mode

The print data is transferred without compression. This method is

 

 

especially effective for printing data with low compression ratio,

 

 

such as photographs.

2)

RLL compression mode

The print data is compressed using RLL (run-length limited) data

 

 

compression. This method is especially effective for data with

 

 

repeated patterns, such as graphics and illustrations.

3)

TIFF compression mode

The print data is compressed using TIFF (Tagged Image File

 

 

Format) compression. This method is also especially effective for

 

 

data with repeated patterns, such as graphs, figures and

 

 

illustrations.

In addition, programmers may wish to utilize the roll paper mode.

EPSON Imaging Technology Center

Page: 16

Revision: 1

10/6/00