Computer Printer Repair

Fix Printer Problems

Fix Cannon Printer Error 0x00000721

Problem :

I have installed LB2900 Cannon printer in Windows 7 Ist working fine But i am not able to share in other windows 7 machine i am getting following error

Windows cannot connect to the printer

Operation failed with error 0x00000721

Solution :

There are two basic ways to make a printer available to the PCs on your home network:

  • Attach it directly to one computer and share it with all the others on a network.
  • Connect the printer as a stand-alone device on the network itself.

This article explains how to do both in Windows. However, you should always first consult the information that came with your model for specific installation and setup instructions.
Setting up a shared printer

Traditionally, the most common way to make a printer available to a home network has been to connect it to one of the PCs and then tell Windows to share it. This is called a shared printer.

The advantage of sharing a printer is that it works with any USB printer. The downside? The host PC always has to be powered up, otherwise the rest of the network won't be able to access the shared printer.

In previous versions of Windows, setting up a shared printer could sometimes be tricky. But a new home networking feature in Windows 7 called Windows HomeGroup has greatly simplified the process.

When a network is set up as a homegroup, printers and certain files are automatically shared. (To learn more about what homegroups do and how to create them, go to Windows Help online and search for "Windows HomeGroup: Recommended links.")

If you've already set up a homegroup and want to access a shared printer from another homegroup PC, just follow these steps:
To access a shared homegroup printer

If a printer connected to one of the computers in a homegroup is properly installed and turned on, you can access it from another homegroup computer by following these steps.

open Devices and Printers in Control Panel

Select the printer you want to install, and then click Install printer.

After the printer is installed, you can access it through the Print dialog box in any program, just like a printer that is directly connected to your computer. The computer that the printer is connected to must be turned on to use the printer.

Setting up a network printer

Network printers—devices designed to connect directly to a computer network as a stand-alone device—were once found mostly in large offices. No more.

Printer makers are increasingly offering inexpensive inkjet and laser printers that are designed to serve as network printers on home networks. Network printers also have one big advantage over shared printers: they're always available.

There are two common types of network printers: wired and wireless.

Wired printers have an Ethernet port, which you connect to your router or hub via an Ethernet cable.

Wireless printers typically connect to your home network using Wi-Fi or Bluetooth technology.

Some printers offer both options. The instructions that came with your model should tell you exactly how to install it.
To install a network, Wi-Fi, or Bluetooth printer

open Devices and Printers.

Click Add a printer.

In the Add Printer wizard, click Add a network, wireless or Bluetooth printer.

In the list of available printers, select the one you want to use, and then click Next.

If prompted, install the printer driver on your computer. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

Complete the additional steps in the wizard, and then click Finish.
Make sure that you have permission to use these printers before adding them to the computer.

You can confirm the printer is working by printing a test page. For details, see Print a test page.

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