Image align error in FPDF

I am working with laravel to make report using FPDF. It runs properly but every bottom page image ar not aligned properly . I mentioned that with image. How can I fix that? I am working that with long time. Here is my code. Thanks in advance.

public function img_pdf_full()
  {


    $data= visitor::where('flag', '1')
                ->orderBy('id', 'desc')
                ->get();       

    $pdf = new PDF_Code128(); //'P','mm',array(58,20)
    $pdf->AddPage('L');
    $pdf->SetFont('Arial','B',16);
    $pdf->Cell(0,10,"Visitor's Log",0,0,'C');
    $pdf->Ln();

    $pdf->SetFont('Arial','B',10);
    $pdf->Cell(12,10,'Photo',1,0,'C',0);
    $pdf->Cell(40,10,'Name',1,0,'C',0);
    $pdf->Cell(20,10,'Visitor ID',1,0,'C',0);
    $pdf->Cell(20,10,'Date',1,0,'C',0);
    $pdf->ln();

    $pdf->SetFont('Arial','',7);
    foreach ($data as $v) {
        $image1 = public_path('storage/'.$v->v_photo);
        $new_date = date("d F, Y", strtotime($v->v_date));

        $pdf->Cell(12,10, $pdf->Image($image1, $pdf->GetX(), $pdf->GetY(), 11.5,10) ,1,0,'C',0);
        $pdf->Cell(40,10,$v->v_name,1,0,'C',0);
        $pdf->Cell(20,10,$v->v_id,1,0,'C',0);
        $pdf->Cell(20,10,$new_date,1,0,'C',0);
        $pdf->ln();
    }

    $pdf->ln();


    $pdf->Output();
    exit;

}

via Chebli Mohamed