Brother Mfc 7820nr User Manual

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8Troubleshooting
Overview
This chapter describes procedures for troubleshooting problems you may encounter with a Brother print/scan 
server, it is divided into the following sections:
■General problems
■Network print software installation problems
■Printing problems
■Protocol-specific troubleshooting
General problems
CD-ROM is inserted, but does not start automatically
If your computer does not support Autorun, the menu will not start automatically after inserting the CD-ROM. 
In this case,...

Troubleshooting
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2Check to see if there is any LED activity. Brother print/scan servers have two LEDs on the back panel of 
the machine. The upper side LED shows Link status. The lower side LED shows Activity 
(Receive/Transmit) status.
No light: If both LEDs are off, then the print/scan server is not connected to the network.
Link LED is green: The Link LED will be green if the print/scan server is connected to a Ethernet network.
3Print the Network Configuration Page and check if the settings...

Troubleshooting
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(5) Make the following selection. Make sure that your print/scan server appears. If it is visible, then the 
connection is good. Otherwise, go to Step 5.
5If you have tried 1 to 4 above and it does not work, then reset the print/scan server back to the default 
factory settings and try from the initial setup again. For information how to reset to the default factory 
settings, see Restoring the network settings to factory default on page 3-8.
6Check if a personal firewall such as...

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3Verify that the print/scan server is on your network as follows:
For Windows
®
(1) Try pinging the print/scan server from the host operating system command prompt with the 
command:
ping ipaddress
Where ipaddress is the print/scan server IP address (note that in some instances it can take up to 
two minutes for the print/scan server to load its IP address after setting the IP address). 
(2) If a successful response is received, then proceed to Windows
® 98/98SE/Me and Windows...

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4If you have tried 1 to 4 above and it does not work, then reset the print/scan server back to the default 
factory settings and try from the initial setup again. For information how to reset to the default factory 
settings, see Restoring the network settings to factory default on page 3-8
Error during printing
If you try to print while other users are printing large amounts of data (e.g. many pages or color pages with 
high resolution), the printer is unable to accept your print...

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Windows® 2000/XP IPP troubleshooting
Want to use a different Port number other than 631.
If you are using Port 631 for IPP printing, you may find that your firewall may not let the print data through. If 
this is the case, use a different port number (port 80), or configure your Firewall to allow Port 631 data 
through.
To send a print job using IPP to a printer using Port 80 (the standard HTTP port) enter the following when 
configuring your Windows
® 2000/XP system....

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Web browser troubleshooting (TCP/IP)
1If you can not connect to the print/scan server using your web browser it may be worth checking the 
Proxy Settings of your browser. Look in the Exceptions setting and if necessary, type in the IP address 
of the print/scan server. This will stop your PC from trying to connect to your ISP or proxy server every 
time you wish to look at the printer server.
2Make sure that you are using the proper web browser, we recommend Netscape Navigator®...

A
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AAppendix A
Using services
A service is a resource that can be accessed by computers that wish to print to the Brother print/scan server. 
The Brother print/scan server provides the following predefined services (do a SHOW SERVICE command 
in the Brother print/scan server remote console to see a list of available services): Enter HELP at the 
command prompt for a list of supported commands. 
Where xxxxxx is the last six digits of the Ethernet address (for example, BRN_310107_P1).
Other ways to...

Appendix A
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A
Using BOOTP to configure the IP address
BOOTP is an alternative to rarp that has the advantage of allowing configuration of the subnet mask and 
gateway. In order to use BOOTP to configure the IP address make sure that BOOTP is installed and running 
on your host computer (it should appear in the /etc/services file on your host as a real service; type man 
bootpd or refer to your system documentation for information). BOOTP is usually started up via the 
/etc/inetd.conf file, so you...

Appendix A
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A
If the rarp daemon is not already running, start it (depending on the system the command can be rarpd, 
rarpd -a, in.rarpd -a or something else; type man rarpd or refer to your system documentation for 
additional information). To verify that the rarp daemon is running on a Berkeley UNIX
®-based system, type 
the following command:
ps -ax | grep -v grep | grep rarpd
For AT&T UNIX®-based systems, type:
ps -ef | grep -v grep | grep rarpd
The Brother print/scan server will get the IP...