Brother International HL 1850 Service Manual - Page 227

HL

-1850/1870N

SERVICE

MANUAL

8.3

TCP/IP

Troubleshooting

If

you

are

using

TCP/IP

and

cannot

print

to

the

print

server

and

you

have

checked

the

hardware

and

network

as

described

in

the

previous

steps,

then

check

the

following:

NOTE:

It

is

always

a

good

idea

to

try

the

following

in

order

to

eliminate

the

possibility

of

setup

errors.

•

Turn

off

the

printer

and

then

on

again,

•

Delete

and

recreate

the

print

server

and

create

a

new

print

queue

in

order

to

eliminate

the

possibility

of

setup

errors.

(1)

The

problem

may

be

the

result

of

mismatched

or

duplicate

IP

address.

Verify

that

the

IP

address

is

correctly

loaded

into

the

print

server

(via

the

configuration

page).

Make

sure

that

no

other

nodes

on

the

network

have

this

address

(DUPLICATE

IP

ADDRESS

ARE

THE

BIGGEST

CAUSE

OF

TCP/IP

PRINTING

PROBLEMS).

(2)

If

you

used

BRCONFIG

to

enter

the

IP

address,

make

sure

that

you

exited

the

remote

console

properly

with

a

CTRL

-D

or

EXIT

and

that

you

turned

the

printer

off

and

then

on

again

(it

may

take

up

to

two

minutes

for

the

IP

address

to

take

effect).

(3)

Make

sure

that

the

TCP/IP

protocol

of

the

print

server

is

enabled.

(4)

If

you

used

rarp,

make

sure

that

you

started

the

rarp

daemon

on

any

workstation

using

the

rarpd,

rarpd-a,

or

equivalent

command.

Verify

that

the

/etc/ethers

file

contains

the

correct

Ethernet

address

and

that

the

print

server

name

matches

the

name

in

the

/etc/hosts

file.

If

you

used

bootp,

make

sure

that

you

started

the

bootp

daemon

on

any

UNIX

workstation

and

bootp

is

enabled

(i.e.,

the

"#"

is

removed

from

the

bootp

entry)

in

the

/etc/bootptab

file

is

correctly

configured.

(6)

Also

verify

that

host

computer

and

the

print

server

are

on

the

same

subnet,

if

the

printer

is

on

a

different

subnet,

make

sure

that

the

router

is

configured

correctly

and

ensure

that

the

GATEWAY

address

is

configured

to

match

the

IP

address

of

the

router.

(

5

)

8.4

UNIX

Troubleshooting

(1)

Make

sure

that

the

/etc/printcap

file

(if

applicable)

is

typed

in

correctly.

In

particular,

look

for

missing

":"

and

"t"

characters,

because

a

small

error

anywhere

in

the

file

can

have

major

consequences.

Also

check

the

/usr/spool

directory

to

make

sure

that

you

have

created

a

valid

spool

directory.

(2)

If

you

are

using

a

Linux

operating

system,

the

X

-Window

Print

tool

program

that

is

included

with

Linux

may

not

properly

configure

the

etc/printcap

file

for

1pd

operation,

then

you

might

also

edit

the

etc/printcap

file

and

change

the

following

line

in

the

entry

for

the

printer.

if

:lp

=

/dev/null:

\

then

to

:lp

=

:\

(3)

If

you

are

using

a

Berkeley

-based

UNIX,

make

sure

that

the

daemon

is

started

on

Berkeley

based

systems

with

the

command

Ipc

start

printer,

where

printer

is

the

name

of

the

local

print

queue.

6-61

Brother International HL 1850 Service Manual - Page 227

TCP/IP, Troubleshooting

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