Printronix P9000 Series manual Serial Matrix Vertical Formatting, Executing Vertical Tabs

Table 5-12. CVFU Line Slewing

	ASCII					Data Bits					Lines Slewed
Hex	Dec	Code	8	7	6	5	4	3	2	1
10	16	DLE	0	0	0	1	0	0	0	0	0	= CR*
11	17	DC1	0	0	0	1	0	0	0	1	1
12	18	DC2	0	0	0	1	0	0	1	0	2
13	19	DC3	0	0	0	1	0	0	1	1	3
14	20	DC4	0	0	0	1	0	1	0	0	4
15	21	NAK	0	0	0	1	0	1	0	1	5
16	22	SYN	0	0	0	1	0	1	1	0	6
17	23	ETB	0	0	0	1	0	1	1	1	7
18	24	CAN	0	0	0	1	1	0	0	0	8
19	25	EM	0	0	0	1	1	0	0	1	9
1A	26	SUB	0	0	0	1	1	0	1	0	10
1B	27	ESC	0	0	0	1	1	0	1	1	11
1C	28	FS	0	0	0	1	1	1	0	0	12
1D	29	GS	0	0	0	1	1	1	0	1	13
1E	30	RS	0	0	0	1	1	1	1	0	14
1F	31	US	0	0	0	1	1	1	1	1	15
X = Undefined, 0 or 1					1 = High						0 = Low

*treated as CR = CR; refer to the Carriage Return control code on page 6-16.

Serial Matrix Vertical Formatting

In Serial Matrix protocol, vertical formatting is always enabled. Forms control is accomplished by a set of programmed vertical tabs. Various lines of the form are assigned vertical tabs which are then accessed by control code for rapid paper advancement to the tab position. Two codes are used for controlling vertical tabs: ESC B for single channel tab setting, and VT to execute a vertical tab. These codes and their parameters are described in the Programming chapter. The VFU Loaded indicator on the control panel will not light when vertical tabs are loaded for forms control.

Executing Vertical Tabs

The vertical tab execute code is VT. When sent, it prints the contents of the print buffer (if data is in the buffer) and causes paper movement to the next predefined vertical tab position. If a tab position is not defined, the paper is moved to the next line at the current line spacing. If a tab position is at the current line, the paper is moved to the next tab position. If no tab positions are defined between the current line and the end of the form, the paper moves to the next top- of-form (TOF).

Vertical Format Units 5-17