USB to serial printer will only print a fraction of self-initiated jobs

I've got a point of sale printer connected to a pc where my bartender
gets the tickets the waitresses need for her to make. The pc has no
serial ports, thus I had to buy a USB to serial adapter so my printer
will print network jobs as this is how the point of sale vendor has
created the ability to print.

Every print command that is SENT to that printer works without fail.

When the bartender orders for a drink, it prints to the printer every
time.

When the bartender opens a pre-existing order and then asks to print
the receipt to her local printer, she is only able to fully print
about 10% of the time. The other 90% of the time, the printer will
only print locally stored information, but nothing that is stored on
the remote server (which is where all orders are kept...on the
workgroup file server).

It's almost like the connection between the local pc and the server is
closed and then it will not print until it is re-opened. Is there any
way to keep this connection permanently open?

Any ideas?

Thanks in advance.

John wrote:

I've got a point of sale printer connected to a pc where my bartender
gets the tickets the waitresses need for her to make. The pc has no
serial ports, thus I had to buy a USB to serial adapter so my printer
will print network jobs as this is how the point of sale vendor has
created the ability to print.

Every print command that is SENT to that printer works without fail.

When the bartender orders for a drink, it prints to the printer every
time.

When the bartender opens a pre-existing order and then asks to print
the receipt to her local printer, she is only able to fully print
about 10% of the time. The other 90% of the time, the printer will
only print locally stored information, but nothing that is stored on
the remote server (which is where all orders are kept...on the
workgroup file server).

It's almost like the connection between the local pc and the server is
closed and then it will not print until it is re-opened. Is there any
way to keep this connection permanently open?

Any ideas?

UH, what kind of printer? What OS is the file server, what OS is the
local PC.

Have you checked event logs?

Shouldn't your Point of Sale Vendor be doing the support. I realize that
they are expensive for support calls, but if the system never actually
worked right to begin with, then I would be complaining about that.