Printcap for Epson LQ1500

[PBMA]

I have a Sun 3/160M server running on SunOs 3.4 and an Epson LQ-1500 LP.

When I hook this printer up to the Sun via the serial port A and print, I
get good printout for a page or so, than it becomes garbled. Thus, I know
that there is some type of handshaking problem but I don't know what it
is.  Does anyone have a printcap they are using for this configuration
they know works?? My current printcap is:

#Epson LQ-1500 over ttya
0|lp|ap|arpa|ucbarpa|epson|applewriter:\
:lp=/dev/ttya:sd=/usr/spool/epson:\
:br#9600:fc#0177777:fs#00320:tr=\f:\
:lf=/usr/adm/lpd.errs:

I might add here that I have an Apple Imagewriter that works OK on the
system; however, it is very slow and hence I would really like to be able
to use the Epson.

Thanks in advance for any help

Chuck Carrigan