Why so many USB printer ports?

[Don Phillipson]

Brother printer drivers configure USB printers with a number
of separate USB ports available, some of which print OK
while others do not. E.g. my DCP 330C shows:
BRMFC MFL Resources
BRUSB: USB Printer
BRUSB_11: NULL
BRUSB_14: NULL
BRUSB_19: USB Printer

1. Why so many different ports?
2. Can the user tell other than by trial which is fastest?

 

[John Doe]

Brother printer drivers configure USB printers with a number
of separate USB ports available, some of which print OK
while others do not. E.g. my DCP 330C shows:
BRMFC MFL Resources
BRUSB: USB Printer
BRUSB_11: NULL
BRUSB_14: NULL
BRUSB_19: USB Printer

1. Why so many different ports?
2. Can the user tell other than by trial which is fastest?

I suspect that the user should have nothing to do with those
entries, unless maybe for troubleshooting.

 

[Don Phillipson]

I suspect that the user should have nothing to do with those
entries, unless maybe for troubleshooting.

Probably not, because default setting (after installation of
updated drivers) configured to a port that did not print (the
standard Windows test page.) The user had to change to
port BRUSB. This is the reason for the questions.

 

[John Doe]

"John Doe" <jdoe usenetlove.invalid> wrote

(Introductions were messed up)

Probably not, because default setting (after installation of
updated drivers) configured to a port that did not print (the
standard Windows test page.) The user had to change to port
BRUSB.

Is "port BRUSB" a physical port?

 

[Guest]

| "Don Phillipson" <e925 SPAMBLOCK.ncf.ca> wrote:
|
| > "John Doe" <jdoe usenetlove.invalid> wrote
|
| (Introductions were messed up)
|
| >> > Brother printer drivers configure USB printers with a number
| >> > of separate USB ports available, some of which print OK
| >> > while others do not. E.g. my DCP 330C shows:
| >> > BRMFC MFL Resources
| >> > BRUSB: USB Printer
| >> > BRUSB_11: NULL
| >> > BRUSB_14: NULL
| >> > BRUSB_19: USB Printer
| >> >
| >> > 1. Why so many different ports?
| >> > 2. Can the user tell other than by trial which is fastest?
| >>
| >> I suspect that the user should have nothing to do with those
| >> entries, unless maybe for troubleshooting.
| >
| > Probably not, because default setting (after installation of
| > updated drivers) configured to a port that did not print (the
| > standard Windows test page.) The user had to change to port
| > BRUSB.
|
| Is "port BRUSB" a physical port?

I'm wondering that as well. I have a Brother laser printer and there's only one
port showing, a virtual USB.

Multifunction and all-in-one printers will install a separate port
for each function, e.g. print, scan and fax. The DCP 330C is
an all-in-one, while your laser printer is a single function device
and needs just one port.

 

[John Doe]

Multifunction and all-in-one printers will install a separate
port for each function,

A technician is required to install a USB port. The terminology
becomes confusing especially when a poster is talking about
plugging devices into the USB port his printer driver just
installed.

Getting back to the original poster's question, generally
speaking... The speed of your USB ports depends on your hardware.

 

[Guest]

A technician is required to install a USB port.

You're referring to physical ports, which has zilch to do with
what the original poster is asking about. The ports installed
by his printer driver (BRMFC, BRUSB_xx etc) are virtual,
a separate port is created for each function of his all-in-one
printer.