方法: 問題のある印刷ジョブを診断する

[アーティクル]
05/04/2023

印刷ジョブで印刷を実行できない、印刷速度が遅い、などのユーザーからの苦情に、ネットワーク管理者が対処することはよくあります。 Microsoft .NET Framework の API で公開されているさまざまな印刷ジョブのプロパティには、印刷ジョブを迅速にリモート診断する手段が用意されています。

例

このようなユーティリティを作成する主な手順は次のとおりです。

ユーザーから苦情が出ている印刷ジョブを特定します。ユーザーがそのジョブを正確に特定できないことはよくあります。プリントサーバーやプリンターの名前がわからないのかもしれません。プリンターの場所の記述に使用されている用語が、Location プロパティの設定で使用されたものとは異なる可能性もあります。そこで、ユーザーが現在送信しているジョブのリストを生成することをお勧めします。ジョブが複数存在する場合は、ユーザーと印刷システム管理者の間の通信を使用して、問題のあるジョブを特定できます。その手順を次に示します。
1. プリントサーバーの一覧を取得します。
2. サーバーをループして、印刷キューを照会します。
3. サーバーループの各パス内で、すべてのサーバーのキューをループして、ジョブを照会します
4. キューループの各パス内で、ジョブをループし、苦情を訴えているユーザーが送信したジョブに関する識別情報を収集します。
問題のある印刷ジョブを特定したら、関連するプロパティを調べて、ジョブがエラー状態になっていないか、キューにサービスを提供しているプリンターがジョブの印刷前にオフラインになっていないか、など、何が問題になっているかを確認します。

一連のコード例を以下に示します。最初のコード例には、印刷キューのループが示されています (前の手順 1c. を参照)。変数 myPrintQueues は、現在のプリントサーバーに対する PrintQueueCollection オブジェクトです。

このコード例では、まず現在の印刷キューのオブジェクトを PrintQueue.Refresh で更新します。これにより、オブジェクトのプロパティが、オブジェクトに示される物理プリンターの状態を正確に表すようになります。その後、アプリケーションで GetPrintJobInfoCollection を使用して、現在印刷キューに存在する印刷ジョブのコレクションを取得します。

次に、アプリケーションで PrintSystemJobInfo コレクションをループ処理し、各 Submitter プロパティと、苦情を訴えているユーザーのエイリアスを比較します。一致した場合、アプリケーションは、ジョブに関する識別情報を、表示される文字列に追加します (userName 変数と jobList 変数は、前にアプリケーションで初期化されています)。

for each (PrintQueue^ pq in myPrintQueues)
{
   pq->Refresh();
   PrintJobInfoCollection^ jobs = pq->GetPrintJobInfoCollection();
   for each (PrintSystemJobInfo^ job in jobs)
   {
      // Since the user may not be able to articulate which job is problematic,
      // present information about each job the user has submitted.
      if (job->Submitter == userName)
      {
         atLeastOne = true;
         jobList = jobList + "\nServer:" + line;
         jobList = jobList + "\n\tQueue:" + pq->Name;
         jobList = jobList + "\n\tLocation:" + pq->Location;
         jobList = jobList + "\n\t\tJob: " + job->JobName + " ID: " + job->JobIdentifier;
      }
   }
}

foreach (PrintQueue pq in myPrintQueues)
{
    pq.Refresh();
    PrintJobInfoCollection jobs = pq.GetPrintJobInfoCollection();
    foreach (PrintSystemJobInfo job in jobs)
    {
        // Since the user may not be able to articulate which job is problematic,
        // present information about each job the user has submitted.
        if (job.Submitter == userName)
        {
            atLeastOne = true;
            jobList = jobList + "\nServer:" + line;
            jobList = jobList + "\n\tQueue:" + pq.Name;
            jobList = jobList + "\n\tLocation:" + pq.Location;
            jobList = jobList + "\n\t\tJob: " + job.JobName + " ID: " + job.JobIdentifier;
        }
    }// end for each print job
}// end for each print queue

For Each pq As PrintQueue In myPrintQueues
    pq.Refresh()
    Dim jobs As PrintJobInfoCollection = pq.GetPrintJobInfoCollection()
    For Each job As PrintSystemJobInfo In jobs
        ' Since the user may not be able to articulate which job is problematic,
        ' present information about each job the user has submitted.
        If job.Submitter = userName Then
            atLeastOne = True
            jobList = jobList & vbLf & "Server:" & line
            jobList = jobList & vbLf & vbTab & "Queue:" & pq.Name
            jobList = jobList & vbLf & vbTab & "Location:" & pq.Location
            jobList = jobList & vbLf & vbTab & vbTab & "Job: " & job.JobName & " ID: " & job.JobIdentifier
        End If
    Next job ' end for each print job

Next pq ' end for each print queue

次のコード例では、手順 2. のアプリケーションを取り上げます (前の説明を参照)。問題のあるジョブが特定され、その問題に関する情報を入力するように求められます。この情報から、PrintServer、PrintQueue、PrintSystemJobInfo の各オブジェクトを作成します。

この時点で、アプリケーションは分岐構造になっており、印刷ジョブの状態を確認する 2 つの方法に対応しています。

PrintJobStatus 型の JobStatus プロパティのフラグを読み取ることができます。
IsBlocked や IsInError など、関連する各プロパティを読み取ることができます。

この例では両方の方法が示されています。したがって、JobStatus プロパティのフラグを使用するユーザーは、以前に使用する方法に関する指定を求められたときに、"Y" と応答しました。 2 つの方法の詳細については、以下を参照してください。最後に、アプリケーションは ReportQueueAndJobAvailability というメソッドを使用して、現在ジョブを印刷できるかどうかを報告します。このメソッドについては、「方法: 現在、印刷ジョブが印刷可能であるかどうかを検出する」で説明しています。

// When the problematic print job has been identified, enter information about it.
Console::Write("\nEnter the print server hosting the job (including leading slashes \\\\): " + "\n(press Return for the current computer \\\\{0}): ", Environment::MachineName);
String^ pServer = Console::ReadLine();
if (pServer == "")
{
   pServer = "\\\\" + Environment::MachineName;
}
Console::Write("\nEnter the print queue hosting the job: ");
String^ pQueue = Console::ReadLine();
Console::Write("\nEnter the job ID: ");
Int16 jobID = Convert::ToInt16(Console::ReadLine());

// Create objects to represent the server, queue, and print job.
PrintServer^ hostingServer = gcnew PrintServer(pServer, PrintSystemDesiredAccess::AdministrateServer);
PrintQueue^ hostingQueue = gcnew PrintQueue(hostingServer, pQueue, PrintSystemDesiredAccess::AdministratePrinter);
PrintSystemJobInfo^ theJob = hostingQueue->GetJob(jobID);

if (useAttributesResponse == "Y")
{
   TroubleSpotter::SpotTroubleUsingJobAttributes(theJob);
   // TroubleSpotter class is defined in the complete example.
} else
{
   TroubleSpotter::SpotTroubleUsingProperties(theJob);
}

TroubleSpotter::ReportQueueAndJobAvailability(theJob);

// When the problematic print job has been identified, enter information about it.
Console.Write("\nEnter the print server hosting the job (including leading slashes \\\\): " +
"\n(press Return for the current computer \\\\{0}): ", Environment.MachineName);
String pServer = Console.ReadLine();
if (pServer == "")
{
    pServer = "\\\\" +Environment.MachineName;
}
Console.Write("\nEnter the print queue hosting the job: ");
String pQueue = Console.ReadLine();
Console.Write("\nEnter the job ID: ");
Int16 jobID = Convert.ToInt16(Console.ReadLine());

// Create objects to represent the server, queue, and print job.
PrintServer hostingServer = new PrintServer(pServer, PrintSystemDesiredAccess.AdministrateServer);
PrintQueue hostingQueue = new PrintQueue(hostingServer, pQueue, PrintSystemDesiredAccess.AdministratePrinter);
PrintSystemJobInfo theJob = hostingQueue.GetJob(jobID);

if (useAttributesResponse == "Y")
{
    TroubleSpotter.SpotTroubleUsingJobAttributes(theJob);
    // TroubleSpotter class is defined in the complete example.
}
else
{
    TroubleSpotter.SpotTroubleUsingProperties(theJob);
}

TroubleSpotter.ReportQueueAndJobAvailability(theJob);

' When the problematic print job has been identified, enter information about it.
Console.Write(vbLf & "Enter the print server hosting the job (including leading slashes \\): " & vbLf & "(press Return for the current computer \\{0}): ", Environment.MachineName)
Dim pServer As String = Console.ReadLine()
If pServer = "" Then
    pServer = "\\" & Environment.MachineName
End If
Console.Write(vbLf & "Enter the print queue hosting the job: ")
Dim pQueue As String = Console.ReadLine()
Console.Write(vbLf & "Enter the job ID: ")
Dim jobID As Int16 = Convert.ToInt16(Console.ReadLine())

' Create objects to represent the server, queue, and print job.
Dim hostingServer As New PrintServer(pServer, PrintSystemDesiredAccess.AdministrateServer)
Dim hostingQueue As New PrintQueue(hostingServer, pQueue, PrintSystemDesiredAccess.AdministratePrinter)
Dim theJob As PrintSystemJobInfo = hostingQueue.GetJob(jobID)

If useAttributesResponse = "Y" Then
    TroubleSpotter.SpotTroubleUsingJobAttributes(theJob)
    ' TroubleSpotter class is defined in the complete example.
Else
    TroubleSpotter.SpotTroubleUsingProperties(theJob)
End If

TroubleSpotter.ReportQueueAndJobAvailability(theJob)

JobStatus プロパティのフラグを使用して、印刷ジョブの状態を確認するには、各関連フラグが設定されているかどうかを確認します。 1 ビットがビットフラグセットで設定されているかどうかを確認するには、通常、フラグセットを 1 つのオペランドとし、フラグ自体をもう 1 つのオペランドとして、論理 AND 演算を行います。フラグ自体には 1 ビットのみが設定されているため、論理 AND の結果は、その同じビットが上限となります。それが該当するかどうかを確認するには、論理 AND の結果とフラグ自体を比較します。詳細については、PrintJobStatus、& 演算子 (C# リファレンス)、および FlagsAttribute に関する記事を参照してください。

次のコードでは、ビットが設定されている属性ごとにこの報告をコンソール画面に表示し、場合によっては応答方法を示します (ジョブまたはキューが一時停止されている場合に呼び出される HandlePausedJob メソッドについては、後で説明します)。

// Check for possible trouble states of a print job using the flags of the JobStatus property
static void SpotTroubleUsingJobAttributes (PrintSystemJobInfo^ theJob) 
{
   if ((theJob->JobStatus & PrintJobStatus::Blocked) == PrintJobStatus::Blocked)
   {
      Console::WriteLine("The job is blocked.");
   }
   if (((theJob->JobStatus & PrintJobStatus::Completed) == PrintJobStatus::Completed)
      || 
      ((theJob->JobStatus & PrintJobStatus::Printed) == PrintJobStatus::Printed))
   {
      Console::WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
   }
   if (((theJob->JobStatus & PrintJobStatus::Deleted) == PrintJobStatus::Deleted)
      || 
      ((theJob->JobStatus & PrintJobStatus::Deleting) == PrintJobStatus::Deleting))
   {
      Console::WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
   }
   if ((theJob->JobStatus & PrintJobStatus::Error) == PrintJobStatus::Error)
   {
      Console::WriteLine("The job has errored.");
   }
   if ((theJob->JobStatus & PrintJobStatus::Offline) == PrintJobStatus::Offline)
   {
      Console::WriteLine("The printer is offline. Have user put it online with printer front panel.");
   }
   if ((theJob->JobStatus & PrintJobStatus::PaperOut) == PrintJobStatus::PaperOut)
   {
      Console::WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
   }
   if (((theJob->JobStatus & PrintJobStatus::Paused) == PrintJobStatus::Paused)
      || 
      ((theJob->HostingPrintQueue->QueueStatus & PrintQueueStatus::Paused) == PrintQueueStatus::Paused))
   {
      HandlePausedJob(theJob);
      //HandlePausedJob is defined in the complete example.
   }

   if ((theJob->JobStatus & PrintJobStatus::Printing) == PrintJobStatus::Printing)
   {
      Console::WriteLine("The job is printing now.");
   }
   if ((theJob->JobStatus & PrintJobStatus::Spooling) == PrintJobStatus::Spooling)
   {
      Console::WriteLine("The job is spooling now.");
   }
   if ((theJob->JobStatus & PrintJobStatus::UserIntervention) == PrintJobStatus::UserIntervention)
   {
      Console::WriteLine("The printer needs human intervention.");
   }
};

// Check for possible trouble states of a print job using the flags of the JobStatus property
internal static void SpotTroubleUsingJobAttributes(PrintSystemJobInfo theJob)
{
    if ((theJob.JobStatus & PrintJobStatus.Blocked) == PrintJobStatus.Blocked)
    {
        Console.WriteLine("The job is blocked.");
    }
    if (((theJob.JobStatus & PrintJobStatus.Completed) == PrintJobStatus.Completed)
        ||
        ((theJob.JobStatus & PrintJobStatus.Printed) == PrintJobStatus.Printed))
    {
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
    }
    if (((theJob.JobStatus & PrintJobStatus.Deleted) == PrintJobStatus.Deleted)
        ||
        ((theJob.JobStatus & PrintJobStatus.Deleting) == PrintJobStatus.Deleting))
    {
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
    }
    if ((theJob.JobStatus & PrintJobStatus.Error) == PrintJobStatus.Error)
    {
        Console.WriteLine("The job has errored.");
    }
    if ((theJob.JobStatus & PrintJobStatus.Offline) == PrintJobStatus.Offline)
    {
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.");
    }
    if ((theJob.JobStatus & PrintJobStatus.PaperOut) == PrintJobStatus.PaperOut)
    {
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
    }

    if (((theJob.JobStatus & PrintJobStatus.Paused) == PrintJobStatus.Paused)
        ||
        ((theJob.HostingPrintQueue.QueueStatus & PrintQueueStatus.Paused) == PrintQueueStatus.Paused))
    {
        HandlePausedJob(theJob);
        //HandlePausedJob is defined in the complete example.
    }

    if ((theJob.JobStatus & PrintJobStatus.Printing) == PrintJobStatus.Printing)
    {
        Console.WriteLine("The job is printing now.");
    }
    if ((theJob.JobStatus & PrintJobStatus.Spooling) == PrintJobStatus.Spooling)
    {
        Console.WriteLine("The job is spooling now.");
    }
    if ((theJob.JobStatus & PrintJobStatus.UserIntervention) == PrintJobStatus.UserIntervention)
    {
        Console.WriteLine("The printer needs human intervention.");
    }
}//end SpotTroubleUsingJobAttributes

' Check for possible trouble states of a print job using the flags of the JobStatus property
Friend Shared Sub SpotTroubleUsingJobAttributes(ByVal theJob As PrintSystemJobInfo)
    If (theJob.JobStatus And PrintJobStatus.Blocked) = PrintJobStatus.Blocked Then
        Console.WriteLine("The job is blocked.")
    End If
    If ((theJob.JobStatus And PrintJobStatus.Completed) = PrintJobStatus.Completed) OrElse ((theJob.JobStatus And PrintJobStatus.Printed) = PrintJobStatus.Printed) Then
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.")
    End If
    If ((theJob.JobStatus And PrintJobStatus.Deleted) = PrintJobStatus.Deleted) OrElse ((theJob.JobStatus And PrintJobStatus.Deleting) = PrintJobStatus.Deleting) Then
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.")
    End If
    If (theJob.JobStatus And PrintJobStatus.Error) = PrintJobStatus.Error Then
        Console.WriteLine("The job has errored.")
    End If
    If (theJob.JobStatus And PrintJobStatus.Offline) = PrintJobStatus.Offline Then
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.")
    End If
    If (theJob.JobStatus And PrintJobStatus.PaperOut) = PrintJobStatus.PaperOut Then
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.")
    End If

    If ((theJob.JobStatus And PrintJobStatus.Paused) = PrintJobStatus.Paused) OrElse ((theJob.HostingPrintQueue.QueueStatus And PrintQueueStatus.Paused) = PrintQueueStatus.Paused) Then
        HandlePausedJob(theJob)
        'HandlePausedJob is defined in the complete example.
    End If

    If (theJob.JobStatus And PrintJobStatus.Printing) = PrintJobStatus.Printing Then
        Console.WriteLine("The job is printing now.")
    End If
    If (theJob.JobStatus And PrintJobStatus.Spooling) = PrintJobStatus.Spooling Then
        Console.WriteLine("The job is spooling now.")
    End If
    If (theJob.JobStatus And PrintJobStatus.UserIntervention) = PrintJobStatus.UserIntervention Then
        Console.WriteLine("The printer needs human intervention.")
    End If

End Sub

個別のプロパティを使用して印刷ジョブの状態を確認するには、単に各プロパティを読み取り、プロパティが true の場合は報告をコンソール画面に表示し、場合によっては応答方法を示します (ジョブまたはキューが一時停止されている場合に呼び出される HandlePausedJob メソッドについては、後で説明します)。

// Check for possible trouble states of a print job using its properties
static void SpotTroubleUsingProperties (PrintSystemJobInfo^ theJob) 
{
   if (theJob->IsBlocked)
   {
      Console::WriteLine("The job is blocked.");
   }
   if (theJob->IsCompleted || theJob->IsPrinted)
   {
      Console::WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
   }
   if (theJob->IsDeleted || theJob->IsDeleting)
   {
      Console::WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
   }
   if (theJob->IsInError)
   {
      Console::WriteLine("The job has errored.");
   }
   if (theJob->IsOffline)
   {
      Console::WriteLine("The printer is offline. Have user put it online with printer front panel.");
   }
   if (theJob->IsPaperOut)
   {
      Console::WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
   }

   if (theJob->IsPaused || theJob->HostingPrintQueue->IsPaused)
   {
      HandlePausedJob(theJob);
      //HandlePausedJob is defined in the complete example.
   }

   if (theJob->IsPrinting)
   {
      Console::WriteLine("The job is printing now.");
   }
   if (theJob->IsSpooling)
   {
      Console::WriteLine("The job is spooling now.");
   }
   if (theJob->IsUserInterventionRequired)
   {
      Console::WriteLine("The printer needs human intervention.");
   }
};

// Check for possible trouble states of a print job using its properties
internal static void SpotTroubleUsingProperties(PrintSystemJobInfo theJob)
{
    if (theJob.IsBlocked)
    {
        Console.WriteLine("The job is blocked.");
    }
    if (theJob.IsCompleted || theJob.IsPrinted)
    {
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.");
    }
    if (theJob.IsDeleted || theJob.IsDeleting)
    {
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.");
    }
    if (theJob.IsInError)
    {
        Console.WriteLine("The job has errored.");
    }
    if (theJob.IsOffline)
    {
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.");
    }
    if (theJob.IsPaperOut)
    {
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.");
    }

    if (theJob.IsPaused || theJob.HostingPrintQueue.IsPaused)
    {
        HandlePausedJob(theJob);
        //HandlePausedJob is defined in the complete example.
    }

    if (theJob.IsPrinting)
    {
        Console.WriteLine("The job is printing now.");
    }
    if (theJob.IsSpooling)
    {
        Console.WriteLine("The job is spooling now.");
    }
    if (theJob.IsUserInterventionRequired)
    {
        Console.WriteLine("The printer needs human intervention.");
    }
}//end SpotTroubleUsingProperties

' Check for possible trouble states of a print job using its properties
Friend Shared Sub SpotTroubleUsingProperties(ByVal theJob As PrintSystemJobInfo)
    If theJob.IsBlocked Then
        Console.WriteLine("The job is blocked.")
    End If
    If theJob.IsCompleted OrElse theJob.IsPrinted Then
        Console.WriteLine("The job has finished. Have user recheck all output bins and be sure the correct printer is being checked.")
    End If
    If theJob.IsDeleted OrElse theJob.IsDeleting Then
        Console.WriteLine("The user or someone with administration rights to the queue has deleted the job. It must be resubmitted.")
    End If
    If theJob.IsInError Then
        Console.WriteLine("The job has errored.")
    End If
    If theJob.IsOffline Then
        Console.WriteLine("The printer is offline. Have user put it online with printer front panel.")
    End If
    If theJob.IsPaperOut Then
        Console.WriteLine("The printer is out of paper of the size required by the job. Have user add paper.")
    End If

    If theJob.IsPaused OrElse theJob.HostingPrintQueue.IsPaused Then
        HandlePausedJob(theJob)
        'HandlePausedJob is defined in the complete example.
    End If

    If theJob.IsPrinting Then
        Console.WriteLine("The job is printing now.")
    End If
    If theJob.IsSpooling Then
        Console.WriteLine("The job is spooling now.")
    End If
    If theJob.IsUserInterventionRequired Then
        Console.WriteLine("The printer needs human intervention.")
    End If

End Sub

HandlePausedJob メソッドを使用すると、アプリケーションのユーザーが、一時停止されているジョブをリモートで再開できます。印刷キューが正当な理由で一時停止している可能性があるため、まず、印刷キューを再開するかどうかを確認するメッセージが表示されます。 "Y" と応答すると、PrintQueue.Resume メソッドが呼び出されます。

次に、ユーザーはジョブ自体を再開するかどうかを確認するよう求められます。これは、そのジョブが印、刷キューとは関係なく一時停止されている可能性もあるためです (PrintQueue.IsPaused と PrintSystemJobInfo.IsPaused を比較します)。"Y" と応答すると、PrintSystemJobInfo.Resume が呼び出されます。それ以外の場合は、Cancel が呼び出されます。

static void HandlePausedJob (PrintSystemJobInfo^ theJob) 
{
   // If there's no good reason for the queue to be paused, resume it and 
   // give user choice to resume or cancel the job.
   Console::WriteLine("The user or someone with administrative rights to the queue" + "\nhas paused the job or queue." + "\nResume the queue? (Has no effect if queue is not paused.)" + "\nEnter \"Y\" to resume, otherwise press return: ");
   String^ resume = Console::ReadLine();
   if (resume == "Y")
   {
      theJob->HostingPrintQueue->Resume();

      // It is possible the job is also paused. Find out how the user wants to handle that.
      Console::WriteLine("Does user want to resume print job or cancel it?" + "\nEnter \"Y\" to resume (any other key cancels the print job): ");
      String^ userDecision = Console::ReadLine();
      if (userDecision == "Y")
      {
         theJob->Resume();
      } else
      {
         theJob->Cancel();
      }
   }
};

internal static void HandlePausedJob(PrintSystemJobInfo theJob)
{
    // If there's no good reason for the queue to be paused, resume it and
    // give user choice to resume or cancel the job.
    Console.WriteLine("The user or someone with administrative rights to the queue" +
         "\nhas paused the job or queue." +
         "\nResume the queue? (Has no effect if queue is not paused.)" +
         "\nEnter \"Y\" to resume, otherwise press return: ");
    String resume = Console.ReadLine();
    if (resume == "Y")
    {
        theJob.HostingPrintQueue.Resume();

        // It is possible the job is also paused. Find out how the user wants to handle that.
        Console.WriteLine("Does user want to resume print job or cancel it?" +
            "\nEnter \"Y\" to resume (any other key cancels the print job): ");
        String userDecision = Console.ReadLine();
        if (userDecision == "Y")
        {
            theJob.Resume();
        }
        else
        {
            theJob.Cancel();
        }
    }//end if the queue should be resumed
}//end HandlePausedJob

Friend Shared Sub HandlePausedJob(ByVal theJob As PrintSystemJobInfo)
    ' If there's no good reason for the queue to be paused, resume it and 
    ' give user choice to resume or cancel the job.
    Console.WriteLine("The user or someone with administrative rights to the queue" & vbLf & "has paused the job or queue." & vbLf & "Resume the queue? (Has no effect if queue is not paused.)" & vbLf & "Enter ""Y"" to resume, otherwise press return: ")
    Dim [resume] As String = Console.ReadLine()
    If [resume] = "Y" Then
        theJob.HostingPrintQueue.Resume()

        ' It is possible the job is also paused. Find out how the user wants to handle that.
        Console.WriteLine("Does user want to resume print job or cancel it?" & vbLf & "Enter ""Y"" to resume (any other key cancels the print job): ")
        Dim userDecision As String = Console.ReadLine()
        If userDecision = "Y" Then
            theJob.Resume()
        Else
            theJob.Cancel()
        End If
    End If 'end if the queue should be resumed

End Sub

方法: 問題のある印刷ジョブを診断する

例

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