[ale] Serial Printer

[Chris Fowler]

Change speed to 2400.  A Okidata print head can not go as fast as 9600. 
There is no use to run the serial that fast.  You'll just increase your
chances of a buffer overflow.


On Thu, 2004-01-22 at 19:02, Nick Travis wrote:
> I've got the cable, acutally its 2 converters that use an ethernet cable
> inbetween, this is how the printer was setup originally, I can get the
> printer to work fine over the parallel port, but I'm not getting anything
> from the serial port, I checked the serial settings on the printer:
> Parity                                      None
> Serial Data 7/8 Bits                  8 Bits
> Protocol                                  X-ON/X-OFF
> Busy Line                                SSD+
> Baud Rate                                9600BPS
> DSR Signal                              Invalid
> DTR Signal                              Ready on Power UP
> Emulation mode                        IBM PPR
> 
> I've tried changing several of these but havn't had any luck, I put it back
> how it originally was(above settings).
> 
> This is my /etc/cups/printers.conf file (the printer dot-s is the serial,
> dot_1 is the same printer when setup on the parallel interface)
> 
> # Printer configuration file for CUPS v1.1.19
> # Written by cupsd on Thu 22 Jan 2004 06:56:48 PM EST
> <Printer dot-s>
> Info
> Location
> DeviceURI serial:/dev/ttyS0?baud=9600+bits=8+parity=none+flow=soft
> State Idle
> Accepting Yes
> JobSheets none none
> QuotaPeriod 0
> PageLimit 0
> KLimit 0
> </Printer>
> <DefaultPrinter dot_1>
> Info
> Location
> DeviceURI parallel:/dev/lp0
> State Idle
> Accepting Yes
> JobSheets none none
> QuotaPeriod 0
> PageLimit 0
> KLimit 0
> </Printer>
> 
> I verified my serial ports were active:
> [root at localhost etc]# dmesg | grep tty
> ttyS0 at 0x03f8 (irq = 4) is a 16550A
> ttyS1 at 0x02f8 (irq = 3) is a 16550A
> 
> Anyone have any ideas?  Is there a command to do something simular to an IP
> ping for serial to tell if the cable is working?
> 
> Nick
> 
> ----- Original Message -----
> From: "Christopher Fowler" <cfowler at outpostsentinel.com>
> To: "Atlanta Linux Enthusiasts" <ale at ale.org>
> Sent: Thursday, January 22, 2004 2:33 PM
> Subject: Re: [ale] Serial Printer
> 
> 
> > Create a DB9 -> DB25 Null modem cable.  Configure the printer correctly
> > and you'll be fine.
> >
> > If this is for your business I know of a local consulting group that
> > specializes in these type hookups.
> >
> >
> >
> > On Thu, 2004-01-22 at 14:20, Nick Travis wrote:
> > > I'm trying to hook up an okidata printer using my serial port, but
> > > i've never hooked anything up via the serial port so I'm having some
> > > problems.  Anyone know of any sites that can point me in the right
> > > direction, everything i've googled up seems to be for modems.  It's a
> > > fedora core 1 machine.  The serial port on the printer is a 25 pin,
> > > this printer was previously working on a system that used Digiboards,
> > > which i have absolutely no knowledge about.  Thanks
> > >
> > > Nick
> > >
> > > ______________________________________________________________________
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> 
> 
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