On Thu, Oct 23, 2003 at 04:28:41PM +1000, Robert William Hutton wrote:
> Corey Hickey wrote:
>
> >Currently, if I try to print a text file by using:
> >$ lpr text.txt
> >I get a stairstep effect
>
> This is due to the difference between Unix text format and the DOS text
> format. Unix uses LF (linefeed) as the line terminator; DOS uses LFCR
> (linefeed-character return). With an HP printer, sending just an LF
> makes the printer advance to the next line. A CR is required to return
> the printing to the beginning of the line.
>
I am working with an old HP_670C (understandig PCL 3)
using following printing command for text files:
"pr -o 16 <text_file> | lpr"
--------------------------
"pr -o 16 .." left margin = 16 chars
adding file header + formfeed
my '/etc/printcap' has this entry (remove dash lines):
------------------------------------------------------
lp|hp deskjet printer condensed w/ formfeed
:lp=/dev/lp0
:sd=/var/spool/lpd/lp
:af=/var/log/lp-acct
:lf=/var/log/lp-errs
#--------------------------
:if=/usr/local/sbin/lp/hpdj
#--------------------------
:pl#60
:pw#100
:mx#0
:sh
:sf
:rw
:
-----------------------------------------------------
The C-source of my 'hpdj' filter (see printcap line)
using internal printer commands to be more flexible:
-----------------------------------------------------
(compile: "cc -O2 -o hpdj hpdj.c")
(compact 'hpdj': "strip hpdj")
// HP DeskJet Printer Filter: Add CarriageReturn to LineFeed
// ==========================================================
// \wwf 20.01.03
// bin file = "/usr/local/sbin/lp/hpdj"
// reference in /etc/printcap:
// printcap: add "if=/usr/local/sbin/lp/hpdj" to printer config
// -------------------------------------------------------------
// (left margin: "pr -o 16 <text_file> | lpr)
// (pr gererates formfeed)
#include <stdio.h>
#define CR '\r' // CarriageReturn
#define LF '\n' // LineFeed
#define FF '\f' // FormFeed
// Printing Control Commands for HP_670C
// -------------------------------------
char RESET[]= {'\x1b','\x45'};
char LFLF[] = {'\x1b','\x26','\x6b','\x30','\x47'};
char CRLF[] = {'\x1b','\x26','\x6b','\x32','\x47'};
char COND[] = {'\x1b','\x26','\x6b','\x32','\x53'};
char ELITE[]= {'\x1b','\x26','\x6b','\x34','\x53'};
char PROP[] = {'\x1b','\x28','\x73','\x31','\x50'};
int ch; // text input chars
int i; // loop counter
char writebuf(char *array) { // write Ctrl-chars
for (i=0; i<= sizeof(array); i++) // don't write '\0'
putc(*array++, stdout);
}
int main() {
writebuf(RESET); // printer
writebuf(CRLF); // control
writebuf(COND); // commands
// writebuf(PROP); // (proportional)
fflush(stdout); // force writing
while ((ch = getchar()) != EOF) { // read text
putchar(ch); // write text
}
// putchar(FF); // formfeed (uncomment if no paper eject)
writebuf(RESET); // reset to standard settings
return(0);
}
(End of source 'hpdj.c' put to this mail)
==================================================================
If the printing configuration above won't work for Your HP printer, try
----------------------------------------
The C-source of my 'crlf' filter
using external 'carriage_return' feeding
----------------------------------------
(of cource, replace 'hpdj' by 'crlf' in 'printcap' listing above!)
(compile: "cc -O2 -o crlf crlf.c")
(compact 'crlf': "strip crlf")
// HP DeskJet Printer Filter: Add CarriageReturn to LineFeed
// ==========================================================
// \wwf 02.07.99
// bin file = "/usr/local/sbin/lp/crlff"
// /etc/printcap: add "if=/usr/local/sbin/lp/crlff"
// to some generic printer config
// ----------------------------------------------------------
#include <stdio.h>
#define CR '\r' // CarriageReturn
#define LF '\n' // LineFeed
#define FF '\f' // FormFeed
int ch; // text input chars
int main () {
while ((ch = getchar()) != EOF) { // read text
if (ch == LF) putchar(CR); // LineFeed
putchar(ch); // write text
}
// putchar(FF); // FormFeed better via "pr" cmd!
return(0);
}
(End of source 'crlf.c' put to this mail)
==================================================================
----------------------------------------------------
To print "*.html" files, convert them to text first:
----------------------------------------------------
Convert (tabular) html files to text
====================================
html2text -nobs -o <file>.txt <file>.html
-nobs Do not use backspaces for boldface and underlining
-----------------------------------------------
To print "Umlaute", you may have to use recode:
-----------------------------------------------
(I put them into my '/etc/alias.sh')
alias unix2dos='recode lat1..ibmpc'
alias dos2unix='recode ibmpc..lat1'
Usage: "recode lat1..ibmpc < input.file > output.file"
--
To UNSUBSCRIBE, email to [EMAIL PROTECTED]
with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
