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1.1 root 1: .\" Copyright (c) 1980 Regents of the University of California.
2: .\" All rights reserved. The Berkeley software License Agreement
3: .\" specifies the terms and conditions for redistribution.
4: .\"
5: .\" @(#)lp.4 6.1 (Berkeley) 5/15/85
6: .\"
7: .TH LP 4 "May 15, 1985"
8: .UC 4
9: .SH NAME
10: lp \- line printer
11: .SH SYNOPSIS
12: .B "device lp0 at uba0 csr 0177514 vector lpintr"
13: .SH DESCRIPTION
14: .I Lp
15: provides the interface to any of the standard
16: DEC line printers on an LP-11 parallel interface.
17: When it is opened or closed, a suitable number
18: of page ejects is generated.
19: Bytes written are printed.
20: .PP
21: The unit number of the printer is specified by the minor device
22: after removing the low 3 bits, which act as per-device parameters.
23: Currently only the lowest of the low three bits is interpreted:
24: if it is set, the device is treated as having a 64-character set,
25: rather than a full 96-character set.
26: In the resulting half-ASCII mode, lower case letters are turned
27: into upper case and certain characters are escaped according to
28: the following table:
29: .PP
30: .br
31: .ns
32: .TP 10
33: {
34: \o"-("
35: .br
36: .ns
37: .TP 10
38: }
39: \o"-)"
40: .br
41: .ns
42: .TP 10
43: \`
44: \o"-\'"
45: .br
46: .ns
47: .TP 10
48: |
49: \o"\-!"
50: .br
51: .ns
52: .TP 10
53: ~
54: \o"\-^"
55: ..
56: .PP
57: The driver correctly interprets
58: carriage returns, backspaces, tabs, and form feeds.
59: Lines longer than the maximum page width are truncated.
60: The default page width is 132 columns.
61: This may be overridden by specifying, for example, ``flags 256'' .
62: .SH FILES
63: /dev/lp
64: .SH "SEE ALSO"
65: lpr(1)
66: .SH DIAGNOSTICS
67: None.
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