Epson 4100 manual Dots Aspect Inches Overlap Ratio Line

292 DEC LA210 Control Commands

The table below assumes 12.0 or 6.0 set prior to beginning graphics.

	Dots/		Aspect	Dots/	Inches/
(n)	inch	Overlap	ratio	line	line
2	240	64.29%	3.36	3168	13.2
3	240	64.29%	3.36	3168	13.2
4	180	52.38%	2.08	2376	13.2
5, 0, or 1	180	40.48%	1.67	2376	13.2
6	120	28.57%	1.39	1584	13.2
7	120	28.57%	1.39	1584	13.2
8	90	04.76%	1.04	1188	13.2
9	90	04.76%	1.04	1188	13.2

Note: Graphics densities available in the 4100 printer are different than graphics densities on the DEC LA210 printer. The differences are mentioned in "Graphics Density Differences" earlier in this section.

d1 through dx are data byte values from 63 decimal to 126 decimal (3F hexadecimal to 7E hexadecimal), each representing a graphics dot column. Subtract 63 decimal from each byte and convert the result to an 8-bit binary expression. The bits set to logic 1 in the binary expression correspond to the printhead pins that fire to create dots in each dot column. If a bit is set, the corresponding pin fires. If it is not set, the corresponding pin does not fire. In each line, 6 printhead pins may fire during graphics. The least significant bit in the binary expression corresponds to the top pin. See the following examples.