How to access HP JETDIRECT EX Plus using IP address

Here is DHCP showing the IP address of JetDirect Print Server with BOOTP as type.

Can you ping that address? Can you telnet instead of HTTP into that device? You can take a cross over network cable and connect your laptop directly to that device to see if you can get in

I can ping, but telnet with VT100 & VT220 did not work.

Directjet-Configuration.pdf"Does that MAC address on the Jetdirect match the MAC address in the DHCP table---> Yes that is how I was able to match.
" Is there a printer connected to this jetdirect? " ---> Yes. Currently Lexmark printer is connected to DirectJet using Parallel cable.
" If you press the Test button " --> Yes it printed two pages. Please see attached.

Is your laptop on the same subnet as the jetdirect?  Need to eliminate if there is a router/firewall in the middle that is causing issues. Worst case you may need to do a cold reset of this jetdirect:

"To cold reset an HP Jetdirect external print server, unplug the power cord from the HP Jetdirect device, and hold down the TEST button for 5 to 30 seconds while plugging in the power cord."

When you telnet, did you press the enter key at least twice to get a prompt?

"To cold reset" -->  I did this twice, but same result.
If I use Putty, what emulation should I choose?

I never change anything in putty. I just Select Telnet and then type in the IP address of the device.

When I type: Telnet 192.168.1.132, then I get:

Please type [Return] two times, to initialize telnet configuration
For HELP type "?"
> >

When pressing [Return] key, I only get more '>' sign.

That is correct you are now logged in. If you press the '/', you should get the existing config, etc..

When I type '/', nothing happens. When I press [Return] key, I continue to get '>'.

Please type [Return] two times, to initialize telnet configuration
For HELP type "?"
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > >

What happens when you type ? for help

I don't know what I pressed, but I got this:

 Or type"exit" to exit without saving parameters
>
===JetDirect Telnet Configuration===

        Configured Parameters
        IP Address      : 192.168.1.132
        MAC Address     : 00:60:b0:01:9c:6a
        Subnet Mask     : 255.255.255.0
        Default Gateway : 192.168.1.1
        Syslog Server   : 0.0.0.0
        Idle Timeout    : 90 Seconds
        Set Cmnty Name  : Not Specified
        DHCP Config     : Disabled
        Passwd          : Disabled
        Banner page     : Enabled

        To Change/Configure Parameters Enter:
        Parameter-name: value <Carriage Return>
        Parameter-name  Type of value
        ip:             IP-address in dotted notation
        subnet-mask:    address in dotted notation
        default-gw:     address in dotted notation
        syslog-svr:     address in dotted notation
        idle-timeout:   seconds in integers
        set-cmnty-name: alpha-numeric string (32 chars max)
        dhcp-config: 0 to disable, 1 to enable
        banner: 0 to disable, 1 to enable
        type passwd to change passwd

 Type "?" for HELP Or "quit" to save-and-exit
 Or type "exit" to exit without saving configuration parameter entries
>

When I used Putty, it said "Connection refused".

When you ran with putty, did you select telnet or SSH, I suspect the Jetdirect will reject SSH. But what you have provided looks good, I do not see anything wrong. For the most part you can do all your configuration from that telnet screen and skip the HTTP interface.

So, since I know IP address of the JetDirect and it prints to the printer that I hooked up to it using Parallet cable,  I can just set up any printer on any computer and point it to 192.168.1.132?

Yes that is correct. Any printer can be connected, you just need to make sure the proper printer drivers are installed at the client end. The Jetdirect box does not care what printer you physically connect to it.

Got it. Thanks for your help and I appreciate it.

Fyi, I just tried Putty and this time chose Telnet instead of SSH and got connected to JetDirect.