301
B
A Quick Look at Line
Matrix Printing
Character Formation
The IBM 6400 is an impact printer: it creates characters by printing ink dots on
paper. Dots overlap to produce a solid–appearing character of uniform
density. The dots are made by an assembly of steel hammers mounted on a
rapidly oscillating shuttle. The hammers strike the paper through a moving ink
ribbon. The dot patterns of characters are mapped in printer memory on
invisible matrices, as shown in Figure 73.
Figure 73. Typical Character Formation
Matrix visible only to
the printer
Dot Column
Dot Row
Ink dots formed by
hammer tips
Character Row
Character Column
Summary of Contents for 6400-i05
Page 1: ...Setup Guide Cabinet and Pedestal Models 6400i Line Matrix Printers S544 5640 04 ...
Page 2: ......
Page 3: ...S544 5640 04 Setup Guide Cabinet and Pedestal Models 6400i Line Matrix Printers ...
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Page 24: ...24 Chapter 1 The IBM 6400 Printer Family ...
Page 102: ...102 Chapter 3 Changing The Power On Configuration ...
Page 248: ...248 Chapter 4 RibbonMinder Menu ...
Page 288: ...288 Chapter 6 Fault Messages ...
Page 304: ...304 Appendix B Printing Speed ...
Page 310: ...310 Appendix C Compatibility and Limitations ...
Page 328: ...328 Appendix D Physical and Logical Unit Types ...
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