Ftp Printing; Commands; Number Of Connections And Used Ports - Canon AD1 Service Manual

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Functions > Basic Function > FTP Printing > Number of Connections and Used Ports
Basic Function

FTP Printing

This device provides a FTP server for receiving print data. The device can accept print jobs
sent in FTP from client PCs. This is called FTP printing, a new feature first employed on iRC
6800. To use this feature, the FTP Print option must be selected. It is selected by default.
You can access the option by pressing Ad Func, System Settings, Network Settings, TCP/
IP Settings, and FTP Print Settings buttons. In FTP Print Settings screen, only one pair of a
user name and password can be entered for the user who can log in to the FTP server. No
settings are made for both of the fields by default.

■ Commands

The FTP server complies with the RFC 959 -- File Transfer Protocol -- but provides only
printing function. Thus the server does not support other functions required as a RFC 959
compliant server. The commands available for the FTP client are "user," "password," "bin,"
"put," "bye," "hash," and "help." There is no use of other commands since the server does
not provide functions other than printing. The following lists the notes to use the commands.
- To send print data with the command "put," set the mode to the binary mode using the
command "bin." In the ascii mode, the data cannot be sent with the command "put."
• If the user and password fields are blank, any user with any password can log in. If the
user name "anonymous" is used, any character string can be entered as the password.
The device displays the string in User filed of Log screen.
2 Functions > Basic Function > FTP Printing > Number of Connections and Used Ports
• This function is featured mainly to print prn files output from PDL drivers. The device
processes text files and the like as it receives data in LPR (and does not properly print
depending on settings.) The device of PostScript-compatible model can print PDF files.
The following shows a command specification example, which you will connect the device of
the IP address "172.16.181.131" in FTP with the user name "test" and the password "test"
and print the file "test.prn" in the root directory of the drive C on the client PC.
C:\>ftp 172.16.181.131
Connected to 172.16.181.131.
220 Connection established.
User (172.16.181.131:(none)): test
331 Password required to login.
Password: Note: The password is not displayed.
230 User test logged in.
ftp> bin
200 Type set to IMAGE (binary).
ftp> put c:\test.prn
200 PORT command successful.
150 Opened BINARY data connection for file transfe
226 Transfer complete.
ftp: 15871 bytes sent in 0.00Seconds 15871000.00Kb
ftp> bye
221 Server closing down connection.
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C:\>

■ Number of Connections and Used Ports

The maximum number of concurrent connections is three. If a user attempts to connect to
the FTP server with which three connections have been established, the user cannot log
in and fails in connection. The default port for the FTP server is 21. There is no measure
provided to change the port.
The control port time-out is set to 300 seconds. You need to re-connect to the server if you
have left the connection for 300 seconds or more after logging in. The data port time-out is
60 minutes.
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