If you are trying to print something from 16C74 it's really simple:

#define IMP  PORTD
#define IMP_CLK  PORTE,1 ;RE1
#define IMP_PO  PORTE,0 ;RE0
#define IMP_RDY  PORTE,2 ;RE2

LPrint:                ; receive the byte to be printed in W
btfsc IMP_RDY  ;waits the printer to be ready
 goto $-1
 movwf IMP
 bcf IMP_CLK        ; pulse printer clock
 nop
 bsf IMP_CLK
 return

That's it.

Octavio
======================================================
Octavio Nogueira  - e-mail:   nogueira@mandic.com.br
http://www.geocities.com/~oct_nogueira
"ProPic" Production PIC Programmer Windows under US$20
======================================================
-----Mensagem original-----
De: R.C.Vandenbergh <rcv@UKC.AC.UK>
Para: PICLIST@MITVMA.MIT.EDU <PICLIST@MITVMA.MIT.EDU>
Data: Sexta-feira, Dezembro 12, 1997 12:46
Assunto: Driving parallel printer of a 16C74A ?


>Hi,
>
>does anyone know where I might be able to get some example code or details
>on how to interface a 16C74A to a parallel printer ?
>
>Thanks,
>
>Cedric
>----
>Als je aan een meisje in een disco het uur vraagt,
>weet ze meestal wel hoe laat het is.
>