Unisys EFP9800 manual Each ui li defines data for a 9-pin column of data

EFP9800 ESC/POS Commands

The following table describes the format of the character data as expressed by h, u, and l.

Value	Range (in decimal)	Description
h	0-10 (7 x 7)	Number of u, l pairs (columns)
	0-6 (5 x 9)
ui	ui = 0-255	Data for column i pins. u = the upper 8 pins. Bit 7 of ui corresponds to
		pin 1, bit 6 of ui corresponds to pin 7, and so on. Bit 0 of ui corresponds
		to pin 8. The illustration on the following page shows graphically the
		character data format.
li	li = 0-255	Data for column i pin 9. l = the lowest pin. Bit 7 of li corresponds to pin
		9. The illustration on the following page shows graphically the character

data format.

Notes:

•Each ui li defines data for a 9-pin column of data.

•Each 1 bit specifies that a pin is printed in the column.

•Each 0 bit specifies that a pin is not printed in the column. Each 0 bit specifies that a pin is not printed in the column.

Both 7 x 7 and 5 x 9 character sets are downloaded using the same format. They differ in the range of h and in their use of the downloaded data.

7 x 7 (40/42/51) character print zone (compressed)

•Range of h: 0-10.

•Half dot character. Width is 10 columns.

•Data in the upper bytes (ui) only are stored. Data in the lower byte (li) is treated as 0.

•If h < 10, the remaining columns are taken to be 0.

5 x 9 (33/35/42) character print zone (uncompressed)

•Range of h: 0-6.

•Full dot character: the printer prints a column of 0’s after each data column (defined by ui li)

•Data in the upper and lower bytes are stored and printed.

•If h < 6, the remaining columns are taken to be 0.

6– 32 3255 4073– 002