Printronix P9000 Series manual DLE DC1 DC2 DC3 DC4 NAK SYN ETB Can, Sub Esc

1.The PI line must be enabled and set high;

2.Data bit 5 must be 1 (set); and

3.The EVFU must be the selected Vertical Format Unit.

The Slew Relative configuration and the status of data bits 1-4 determine the number of lines slewed as described in Table 5-3. (Note that the state of data bit 5 is the difference between line slewing and using the interface lines as EVFU channel codes.) As long as the EVFU is seF lected, this type of vertical paper motion will occur regardless of whether the EVFU memory is loaded or not.

If the Double High for One Line attribute is active, n + 1 lines will be slewed rather than n lines.

Table 5-3. P-Series EVFU Line Slewing

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

DVFU

The DVFU may be selected in P-Series protocol and is generally used in conjunction with the Dataproducts interface. A maximum of 12 channels can be assigned to each physical line of a form--up to 143 lines. A channel number is assigned to each line on the form. Channel codes are then sent by the host computer to the printer resulting in rapid paper slewing to the next corresponding line. The programming sequence is 1) start load code; 2) channel assignments; and 3) end load code.

The DVFU start load codes are either 6C, 6D, or 6E hex with the Paper Instruction (PI) Line high.

5-6 Vertical Format Units