Operator’s Guide 163

aa is a single data byte that specifies the vertical expansion characteristics of each download character. Bit values for aa are as follows:

aa Bit Setting

70 = Ascending character (such as h, d, A, R) 1 = Descending character (such as y, p, g)

2-6 Ignored

1 and 0 Vertical expansion as follows:

00 or 11: No vertical expansion

01:Line drawing character (data in Row 8 are copied into Rows 10, 11, and 12)

10: Shaded character (data in Rows 6, 7, and 8

are copied into Rows 10, 11, and 12)

Decimal values for aa are as follows:

aa

Setting

0 or 3

Ascending character, no vertical expansion

1

Line drawing character (Row 8 copied)

2

Shaded character (Rows 6, 7, and 8 copied)

128 or 131 Descending character

129Descending character, line drawing (Row 8 copied)

130Descending character, shaded (Rows 6, 7, and 8 copied)

ab is a single data byte that specifies the print quality of a downloaded character as follows:

ab = 0: Draft/NLQ. Send 10 columns of character data for c1 through cx. Draft and NLQ characters are automatically calculated from this data.

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Image 183
Epson 4100 manual Aa Bit Setting