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What ports does the printer * * * enjoy
How to choose a port to add a printer?

How to choose a port when adding a printer? Let's take a look at the steps to add printer port selection. Welcome to read ~

Add printer port 1

1. You can enjoy printers on XP system, but the client that needs to add printers is windows7 system. At this time, you only need to install the printer driver of windows7 on the windows7 system, and you can use the local port to connect the printer.

2. If the server is a 64-bit system and the client is a 32-bit system in a domain environment, this method can also be used. In the domain environment, because there are many computers, it takes too much time and experience to add them manually. I made a batch process myself, so you can contact me if necessary.

Add printer port 2

1. Right-click the printer icon to confirm, and then select Properties.

2. Select the Port tab to confirm the printer port.

(1) Click the Ports tab to confirm the selected printer port.

(2) In USB connection, if "USBxxx(x stands for number)" is selected as the printer port and the name of the printer connected to the computer is displayed, the printer port is correct.

If another printer port is selected, please reselect "USBxxx(x stands for number)" without the printer name.

If you can't find any USBxxx(x stands for number), uninstall the printer driver and reinstall it.

note:

If the printer name with any port is not displayed, the printer driver may not be installed correctly.

3. Click OK.

That's how to choose the printer port. I hope you can set it yourself after reading it!

Connect the printer to the parallel port with USB. What port does the printer choose?

The port selection of the printer is based on the interface connected to the computer, and the USB port is used, so the printer chooses the USB port.

Extended data:

With the parallel port, users do not need to open the chassis for installation, but only need to connect to the parallel port of PC with a cable, and then load the necessary drivers in the system to use it normally.

The data transmission rate of parallel port optical storage products is very low. The data transmission rate can reach 100KB/s to 530KB/s in bidirectional mode, while it can reach 1200KB/s in EPP mode, which is twice as high as the standard rate.

However, compared with the built-in ATA/ATAPI interface, this data transmission speed can not meet the needs of users at all. For the relatively new external USB or IEEE 1394 interface, the parallel port is far behind in speed and compatibility. Optical storage with parallel interface has been basically eliminated by the market, and the products have disappeared.

USB often has multiple interfaces on personal computers, which can connect several devices at the same time. If a USBHUB with four ports is connected, you can connect it again. Four USB devices, and so on, as many connections as possible, all devices can be connected to a personal computer at the same time without any problems, and at most 127 devices can be connected.

Baidu encyclopedia-parallel port

Baidu encyclopedia -USB interface

The printer port setting method is as follows:

1. is suitable for printers connected via usb.

For the printer with usb directly connected to the computer, after the process of adding the printer is completed, the computer will automatically select the correct port without other operations.

2. Enjoy the printer with network connection.

For printers that directly use network transmission, first use win+s to open the search function, enter the control panel, select the previously installed printer, right-click the printer properties, and select COM 1 as the port property.

If you still can't print after selecting the port of COM 1, you can create a new port yourself. On the previous printer properties page, select Add Port, click Next, and then enter the IP address of the computer.

Basic information of printer:

Printer is one of the output devices of computer, which is used to print the computer processing results on related media. There are three indicators to measure the quality of a printer: printing resolution, printing speed and noise. There are many types of printers, which can be divided into impact printers and non-impact printers according to whether the printing elements impact the paper.

According to the structure of printed characters, there are full-width printers and dot matrix printers. There are serial printers and line printers according to the way a line of words is formed on paper. According to the technology adopted, it can be divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic and LED printers.

What is the use of port 139?

NetBIOS service on port 139 (i.e. * * * access service).

Port 80 _ttp (Hypertext Transfer Protocol) He said that the www service is running on this port.

Port 143 _map Internet message path protocol.

Port 135 _pmap, DCEendpoint resolution.

Port 3306 mysql server.

The function of 139 port: 139 port is mainly the auxiliary port of NetBIOSSessionService equipment, and it is an important connection mode for providing Windows files and printers * * * to enjoy files, as well as making a series of corrections with Samba service of Unix.

139 port intrusion: When it is determined that a host's 139 port is vulnerable, we can use scanning tools, such as port scanning tool SUPERSCAN. We can use the command nbtstat-aIP to get the user's situation. Then through the bridge, the data sharing of its computers is completed.

Port 139 implementation * * *: Port 139 can fix the vulnerability for us. For example, in Windows98, we can open the control panel, then double-click the network icon, click the "Enjoy File and Print * * *" button in the "Configuration" tab and select the corresponding settings to install the enabling file * *.

Similarly, in Windows2000/XP, you can also follow the above steps to open the control panel, double-click the network connection icon, then open the local connection properties, select the Internet protocol in the general tab of the properties window, click the properties button, and then continue to click the advanced button in the opened window. In advanced TCP/IP settings,

Vulnerabilities of 139 port: Although opening 139 port can realize * * * service, some vulnerabilities of 139 port are often exploited by criminals to steal files. For example, using port scanning tools such as Streamer and SuperScan, you can scan the 139 port of the target computer. If a loophole is found, the thief will try to get the user name and password, which is very dangerous.

Does the printer have to enjoy port 445?

The printer * * * does not have to have 445 ports.

How to * * * enjoy the printer after the 445 port is closed?

Go to Microsoft to download the official patch. After installation, open the computer's control panel, click Windows Firewall, and then click Advanced Settings. After going in, I found the rules for closing port 445 at that time. Right-click to delete. Restart the computer after deleting it, and then you can use it.

* * * What port do you choose to enjoy the printer port?

The general computer will automatically identify the print port, and only need to install the printer driver. If it can't be recognized automatically, you can open the control panel, select the viewing device and printer, right-click the printer, select "Properties", and click "Port" in the properties dialog box, where you can freely select the port and click OK to complete the selection.

Printer is one of the output devices of computer, which is used to print the computer processing results on related media. There are three indicators to measure the quality of a printer: printing resolution, printing speed and noise. There are many types of printers, which can be divided into impact printers and non-impact printers according to whether the printing elements impact the paper. According to the structure of printed characters, there are full-width printers and dot matrix printers. There are serial printers and line printers according to the way a line of words is formed on paper. According to the technology adopted, it can be divided into cylindrical, spherical, inkjet, thermal, laser, electrostatic, magnetic and LED printers.