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Send job to printer through web service vb.net

Posted on 2010-11-22
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Last Modified: 2012-05-10
I try to print a report using a web service client I get this error:

"Settings to access printer '\\my-pc\Brother DCP-8025D USB' are not valid."

here's the code on the web service
Private Sub PrintLbl()
 Dim rep As New XtraReport1
        rep.Print("\\my-pc\Brother DCP-8025D USB")
End Sub

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Question by:Mr_Ezi
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16 Comments
 
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Expert Comment

by:kolakanuru1
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I guess the printer should have been installed on the server that is hosting this web service. If you are testing this app on you local machine, you should install the network printer as well on your machine.
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Author Comment

by:Mr_Ezi
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The printer works correctly on my machine. The error happens only when I try it from a different computer.
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Expert Comment

by:kolakanuru1
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As I said, the printer should have been installed on the machine where this web service is being hosted. Check that.
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Author Comment

by:Mr_Ezi
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Oh sorry I didn't got that, I can't install it there since its a Pocket-PC.
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Expert Comment

by:kolakanuru1
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I have no idea about the workings of pocket PC.

I would let other experts take on from here.
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Author Comment

by:Mr_Ezi
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Ok I tried with a local printer and it works great, how do I make a network printer working?
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Accepted Solution

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kolakanuru1 earned 250 total points
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you need to install the drivers of the printer as well where ever this application is being hosted. I am sure you are hosting this on a server. setup the printer drivers on that machine You can cross check what printers are installed using

For Each printer As [String] In PrinterSettings.InstalledPrinters
Me.DropDownList1.Items.Add(printer.ToString())
Next

and then  your code would just work fine.

check the printers on the host, you should see some thing like

Brother DCP-8025D USB on my-pc     as one of the printers to print. where my-pc is the server name and the Brother DCP-8025D USB is the printer name
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Author Comment

by:Mr_Ezi
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Thanks.

I can't install the printer on the client since it’s a PocketPC, but I know that's not the issue because a local printer on the server will print correctly.

The problem is only with the printer that is not plugged in directly in the server, like a network printer.
So I know it’s a security issue.

I found a few sites talking about that but none of the solutions worked for me.
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Expert Comment

by:CodeCruiser
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>I can't install the printer on the client since it’s a PocketPC,
He is talking about installing printer where the web service is HOSTED not where the webservice is accessed. Obviously its hosted on the server. Is the printer installed on the server? Also, does the account which is used to run webservice (network service or ASPNET etc) have permissions on the printer?
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Author Comment

by:Mr_Ezi
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Yes the printer driver is installed on the server, but it's not plogged in to the server, its connected to a other pc on the network.

as I said when I plug in the printer to the server t works great.

I'm not sure about the permissions how to set it to allow network printer's.

Thank for your help
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Assisted Solution

by:CodeCruiser
CodeCruiser earned 250 total points
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When you share the printer on the computer where it is connected, you can set permissions on who is able to access it. Make it available to everyone.
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Author Comment

by:Mr_Ezi
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Oh ok let's try that...

where can I change that setting? I'm using Windows 7 on all pc's.
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Expert Comment

by:CodeCruiser
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When you right click on printer and select Sharing, there is a Security tab on the resulting dialog box. Use that to set permissions. I am in a domain environment.
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Author Closing Comment

by:Mr_Ezi
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I tried so many thing's but finnaly it works.
Thank You
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Expert Comment

by:CodeCruiser
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So setting the permissions worked?
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Author Comment

by:Mr_Ezi
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Maybe I didn't try to remove it.... I don't know what did it in the end since I tried so many thing's.

The last thing I did was to change in IIS the credentials. see image.
 SampleThank again
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