unable to communicate with printer

Port, as the name implies, is the channel connecting the printer to a computer or other devices. There are four common printer interfaces: serial port, parallel port, USB port, network port, and Bluetooth and WIFI.First, you must understand these interfaces. Serial ports are divided into 9-pin 7.1 and 25-pin 7.2Fig 7.1Fig 7.2The parallel ports include TypeA7.3 and TypeB7.4.Fig 7.3Fig 7.4USB port is TypeBFig

In Windows, how does one connect to a network printer for printing ?, Windows Printer In daily work, some files need to be printed out. Unfortunately, the printer is not connected to your computer. At this time, we usually copy the USB flash drive to the computer connected to the printer for printing. In fact, there i

-permanentLong-lasting pipeline communication mechanism. When the process it accesses is all terminated, it is also revoked. Nameless pipes can only be used between processes that have family ties. Well-known pipelines can exist in the system for a long time. It is also available for processes of any relationship, but improper use can lead to errors. Therefore, the operating system to the management of the named pipe to the system to control the pipeline file is created, you can use the system c

How to connect a computer to a LAN-shared printer or a LAN-shared printer In fact, the method for connecting a computer to a local area network shared printer is very simple. It can be done in a few steps. That is, many people do not want to try it. First, obtain the IP address of the printer to connect to the compu

the serial port number of the computer, select the corresponding interface in the driver. For example, the serial port number of the computer is com2, and the driver of gp5860 is used as an example, open start-> printer and fax to see the GP-5860 serial icon, right-click the icon-> properties-> port select com2, and then click OK 8.4 8.4 Then you have set the correct port. 2. Set the correct baud rate, The serial

How can I share a printer with my computer ?, Computer shared printer? Currently, network interfaces are generally used for printing, which is easier to use. Some printers still use USB ports without network interfaces. For this type of printer, we can connect to a printer server or share it with multiple users. For a

There are so many printer types !, Printer types This article is edited by the Markdown syntax editor. The previous impression on the printer was the laser printer used to print A4 paper. Common brands include HP and EPSON. However, when I was working on a hospital project recently, I realized that large organizati

Let everyone know how the LAN is how to share printers. hehe. First of all, we say that to achieve the necessary requirements for LAN Printer sharing: Need two or more computers of the local area network, printer one (stylus printer, inkjet printer, laser printer, etc.) th

Achieving the goal: in a virtual machine 2 Desk Linux System, 2 client to communicate, and can use the host name Ping PassExperiment Preparation: 1. 2 Linux Systems in the virtual machine , one win7, one win20082.linuxA and the LINUXB as a 2 router, Win7 and the win2008 as a 2 -Side Client3.2 Desk Linux Add a network card deviceIntroduction: This experiment uses Cisco routing switching technology.The access path to the experiment we are implementing

In the last article to introduce you to the backbone in the value of the learning experience. This article focuses on three ways to communicate between backbone View. The most critical section in mastering an MVC framework is mastering how to communicate across View. Before using angular, it was very useful to think of event-based communication ($on, $emit, $boardcast) or service based methods. After movin

The following is an example of this: Existing Class A, The structure looks like the following: Class A: {... . . Some data members and member functions; DataType data; Main function process (datatype data,...); /data requires other threads to be fed, and the process executes once as soon as the data is updated, depending on the system requirements. };Now we want class A to communicate with other threads after the thread is turned on. F

How to enable shared printer in win7 and enable printer in win7 Shared printer is enabled for win7, shared disk is enabled for win7, and shared disk is enabled for win7 without a password. First, we will share the printer, provided that we have added a network printer or

Printer Type printing: Inkjet, stylus, Laser Interface type: LPT, COM, USB, RJ45, WIFI Sharing angle: Computer to computer, printer to computer strong> Printer Sharing Idea (topology) Action step: Windows XP system Printer Right-click to set share Initialize Place the network environment Set

Failure phenomenon: Adding a printer in an XP way always prompts you for Windows cannot connect to the printer, or Windows cannot connect to the printer local print Spooler service is not running. Reason Analysis: The machine that is connected to the printer is a Windows XP system that has only a

Latest resolution Win7 Printer sharing appears "Unable to save printer settings (Error 0x000006d9) problem , downloaded by the system is the first to share: Some users in the process of using the WINDOWS7 system, encountered the Win7 printer sharing appears" Cannot save printer settings. The operation failed to complet

We often want to preview the layout effect after we finish writing the document, but if you can't use it without installing the printer, do you want to buy a printer? Actually is not needed, we just install a virtual printer on it, this tutorial for you to introduce the virtual printer installation method. So how do I

(wm_user_msg, onusermsg)End_message_map ()......Message response functionvoid Csample06view::onusermsg (WPARAM WPARAM, LPARAM LPARAM){Report messageAfxMessageBox ("Thread has exited!");}Thereafter, the child-threading function calls the PostMessage () or SendMessage () message-passing function to send the message to the main thread, where it needs to be sent to the main thread. Because the message send function is called in the thread, it is necessary to indicate that the handle to the window i

:=httpstr+accept:image/gif, Image/x-xbitmap, Image/jpeg, Image/pjpeg, Application/vnd.ms-powerpoint, Application/vnd.ms-excel, Application/msword, Application/x-shockwave-flash, */*+ #13 #10; httpstr:=httpstr+accept-language:zh-cn+ #13 #10; httpstr:=httpstr+user-agent:mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; MyIE2; . NET CLR 1.1.4322 + #13 #10; httpstr:=httpstr+host:www.paymesurf.com+ #13 #10; httpstr:=httpstr+proxy-connection:keep-alive+ #13 #10; Above is a netizen's request content,

Tags: process synchronization complex processes for process multi-process type buffering interprocess communicationPipeline: Nameless Pipe Nameless Pipe Features: The nameless pipe is a special kind of file that exists only in memory. Nameless pipes can only be used between parent-child processes or sibling processes and must be used for inter-process communication with affinity. A nameless pipe can only send data from one end to the other, ha

How does win7 connect to a network printer ?, Connect to a network printer using win7 Connect to the network printer under the win7 System in the LAN. Confirm that a shared printer already exists in the LAN. Click to start-device and printer. The page displays exis