diff --git a/src/widgets/dprintpreviewdialog.cpp b/src/widgets/dprintpreviewdialog.cpp
index 840bc60c4..c5db2e0b5 100644
--- a/src/widgets/dprintpreviewdialog.cpp
+++ b/src/widgets/dprintpreviewdialog.cpp
@@ -1017,7 +1017,7 @@ void DPrintPreviewDialogPrivate::initdata()
 {
     Q_Q(DPrintPreviewDialog);
     QStringList itemlist;
-    itemlist << QPrinterInfo::availablePrinterNames()
+    itemlist << availablePrinterNames()
              << qApp->translate("DPrintPreviewDialogPrivate", "Print to PDF")
              << qApp->translate("DPrintPreviewDialogPrivate", "Save as Image");
     printDeviceCombo->addItems(itemlist);
@@ -1293,6 +1293,12 @@ void DPrintPreviewDialogPrivate::initconnections()
     QObject::connect(copycountspinbox->lineEdit(), SIGNAL(textEdited(const QString &)), q, SLOT(_q_spinboxValueEmptyChecked(const QString &)));
     QObject::connect(scaleRateEdit->lineEdit(), SIGNAL(textEdited(const QString &)), q, SLOT(_q_spinboxValueEmptyChecked(const QString &)));
     QObject::connect(inclinatBox->lineEdit(), SIGNAL(textEdited(const QString &)), q, SLOT(_q_spinboxValueEmptyChecked(const QString &)));
+
+    QObject::connect(q, &DPrintPreviewDialog::finished, q, [this]() {
+        qDebug(dPrintPreview) << "DPrintPreviewDialog finished, clear printerNames";
+        printerNames.clear();
+        printerNamesInited = false;
+    });
 }
 
 void DPrintPreviewDialogPrivate::setfrmaeback(DFrame *frame)
@@ -2249,10 +2255,20 @@ void DPrintPreviewDialogPrivate::matchFitablePageSize()
     }
 }
 
+QStringList DPrintPreviewDialogPrivate::availablePrinterNames()
+{
+    if (!printerNamesInited) {
+        qDebug(dPrintPreview) << "Get printer names from QPrinterInfo.";
+        printerNamesInited = true;
+        printerNames = QPrinterInfo::availablePrinterNames();
+        qDebug(dPrintPreview) << "Available printer names:" << printerNames;
+    }
+    return printerNames;
+}
+
 bool DPrintPreviewDialogPrivate::isActualPrinter(const QString &name)
 {
-    const QStringList &printerNames = QPrinterInfo::availablePrinterNames();
-    return printerNames.contains(name);
+    return availablePrinterNames().contains(name);
 }
 
 QString DPrintPreviewDialogPrivate::getColorModeConfig(const QString &printer)
diff --git a/src/widgets/private/dprintpreviewdialog_p.h b/src/widgets/private/dprintpreviewdialog_p.h
index 834b47a3b..f39796293 100644
--- a/src/widgets/private/dprintpreviewdialog_p.h
+++ b/src/widgets/private/dprintpreviewdialog_p.h
@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: 2019 - 2022 UnionTech Software Technology Co., Ltd.
+// SPDX-FileCopyrightText: 2019 - 2026 UnionTech Software Technology Co., Ltd.
 //
 // SPDX-License-Identifier: LGPL-3.0-or-later
 
@@ -92,6 +92,7 @@ class DPrintPreviewDialogPrivate : public DDialogPrivate
     void setPageLayoutEnable(const bool &checked);
     void matchFitablePageSize();
     bool isActualPrinter(const QString &name);
+    QStringList availablePrinterNames();
     QString getColorModeConfig(const QString &printer);
     void saveColorModeConfig(const QString &printer, const QString &colorMode);
 
@@ -189,6 +190,8 @@ class DPrintPreviewDialogPrivate : public DDialogPrivate
     DSpinBox *opaBox = nullptr;
     QVector<qreal> marginOldValue; // 记录margin自定义时的旧值  如果旧值和新值一致，就不需要刷新，top left right bottom
     QList<qreal> minnumMargins;
+    QStringList printerNames;
+    bool printerNamesInited = false;
     QSpacerItem *spacer = nullptr;
     QSpacerItem *wmSpacer = nullptr;
     DFloatingWidget *colorWidget = nullptr;