TransAct Technologies ITHERM 280 - Manual (Page 245)

ITherm ® 280 Color Graphics iTherm ® 280 Programmer’s Guide
28-07764 Rev C Page 243
Figure 19 Sample Receipt
When printing line graphics, the data path to the printer must be eight bits. Seven-bit
serial protocols do not access the extended characters. The extended characters
require that the form be reverse fed. Consequently, printing line graphics on the receipt
may be less than acceptable.