diff --git a/setup_cups.sh b/setup_cups.sh
index c86d12e..c72cac9 100755
--- a/setup_cups.sh
+++ b/setup_cups.sh
@@ -737,8 +737,10 @@ install_pantum_driver() {
     rm -rf "$tmp_dir"
 }
 
-# 显示 HPLIP 插件安装提示
-show_hplip_plugin_notice() {
+# 安装 HPLIP 插件（自动下载）
+install_hplip_plugin() {
+    info "正在安装 HP 打印机插件..."
+
     # 检测 hplip 版本
     local hplip_version=""
     if command -v hp-info > /dev/null 2>&1; then
@@ -751,28 +753,89 @@ show_hplip_plugin_notice() {
     fi
 
     if [ -z "$hplip_version" ]; then
-        warn "无法检测 HPLIP 版本"
-        return
+        warn "无法检测 HPLIP 版本，跳过插件安装"
+        return 1
     fi
 
-    echo ""
-    echo -e "${YELLOW}╔══════════════════════════════════════════════════════════════════╗${NC}"
-    echo -e "${YELLOW}║  ${RED}重要提示：HP 打印机需要安装专有插件才能正常工作！${NC}              ${YELLOW}║${NC}"
-    echo -e "${YELLOW}╠══════════════════════════════════════════════════════════════════╣${NC}"
-    echo -e "${YELLOW}║${NC}  检测到 HPLIP 版本: ${GREEN}${hplip_version}${NC}                                      ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}                                                                  ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}  ${BLUE}请手动下载并安装对应版本的插件:${NC}                                ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}                                                                  ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}  1. 下载地址:                                                    ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}     ${GREEN}https://sourceforge.net/projects/hplip/files/${NC}               ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}     ${GREEN}hplip/${hplip_version}/hplip-${hplip_version}-plugin.run${NC}                       ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}                                                                  ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}  2. 上传到服务器后执行:                                          ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}     ${GREEN}sudo hp-plugin -i -p /tmp/hplip-${hplip_version}-plugin.run${NC}          ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}                                                                  ${YELLOW}║${NC}"
-    echo -e "${YELLOW}║${NC}  3. 安装过程中如提示 GPG 验证失败，输入 ${GREEN}y${NC} 继续即可              ${YELLOW}║${NC}"
-    echo -e "${YELLOW}╚══════════════════════════════════════════════════════════════════╝${NC}"
-    echo ""
+    info "检测到 HPLIP 版本: ${hplip_version}"
+
+    # 插件文件路径
+    local plugin_file="/tmp/hplip-${hplip_version}-plugin.run"
+    local plugin_url="http://www.openprinting.org/download/printdriver/auxfiles/HP/plugins/hplip-${hplip_version}-plugin.run"
+
+    # 下载插件
+    info "下载 HP 插件: ${plugin_url}"
+    if wget -q --show-progress -O "$plugin_file" "$plugin_url" 2>/dev/null; then
+        success "插件下载完成"
+    else
+        warn "插件下载失败，尝试备用地址..."
+        # 备用地址
+        plugin_url="https://developers.hp.com/sites/default/files/hplip-${hplip_version}-plugin.run"
+        if wget -q --show-progress -O "$plugin_file" "$plugin_url" 2>/dev/null; then
+            success "插件下载完成（备用地址）"
+        else
+            warn "插件下载失败"
+            echo ""
+            echo -e "${YELLOW}请手动下载安装 HP 插件:${NC}"
+            echo -e "  下载: ${GREEN}http://www.openprinting.org/download/printdriver/auxfiles/HP/plugins/hplip-${hplip_version}-plugin.run${NC}"
+            echo -e "  安装: ${GREEN}hp-plugin -i -p /tmp/hplip-${hplip_version}-plugin.run${NC}"
+            echo ""
+            return 1
+        fi
+    fi
+
+    # 安装插件（使用 expect 或直接执行）
+    info "安装 HP 插件..."
+    if command -v expect > /dev/null 2>&1; then
+        # 使用 expect 自动应答
+        expect << EOF
+spawn sh "$plugin_file" --nox11
+expect {
+    "Do you accept" { send "y\r"; exp_continue }
+    "Enter a directory path" { send "/usr/share/hplip/data/plugins\r"; exp_continue }
+    eof
+}
+EOF
+    else
+        # 直接执行插件安装脚本
+        chmod +x "$plugin_file"
+        sh "$plugin_file" --nox11 --keep --noexec --target /tmp/hplip-plugin-extract || true
+
+        if [ -d /tmp/hplip-plugin-extract ]; then
+            # 复制插件文件
+            mkdir -p /usr/share/hplip/data/plugins
+            cp -f /tmp/hplip-plugin-extract/*.so /usr/share/hplip/data/plugins/ 2>/dev/null || true
+            cp -f /tmp/hplip-plugin-extract/plugin.spec /usr/share/hplip/data/plugins/ 2>/dev/null || true
+
+            # 设置权限
+            chmod 644 /usr/share/hplip/data/plugins/*.so 2>/dev/null || true
+            chmod 644 /usr/share/hplip/data/plugins/plugin.spec 2>/dev/null || true
+
+            # 创建版本标记
+            echo "[plugin]" > /var/lib/hp/hplip.state
+            echo "installed = 1" >> /var/lib/hp/hplip.state
+            echo "version = ${hplip_version}" >> /var/lib/hp/hplip.state
+            mkdir -p /var/lib/hp
+
+            rm -rf /tmp/hplip-plugin-extract
+            success "HP 插件安装完成"
+        else
+            # 尝试使用 hp-plugin 命令
+            warn "尝试使用 hp-plugin 安装..."
+            echo -e "\n${YELLOW}请在下面的提示中输入 y 接受许可协议${NC}\n"
+            hp-plugin -i -p "$plugin_file" || {
+                warn "自动安装失败"
+                echo ""
+                echo -e "${YELLOW}请手动安装 HP 插件:${NC}"
+                echo -e "  ${GREEN}hp-plugin -i -p ${plugin_file}${NC}"
+                echo -e "  提示 GPG 验证失败时输入 ${GREEN}y${NC} 继续"
+                echo ""
+            }
+        fi
+    fi
+
+    # 清理
+    rm -f "$plugin_file" 2>/dev/null || true
 
     # 保存版本号供后续使用
     HPLIP_VERSION="$hplip_version"
@@ -837,9 +900,9 @@ install_drivers() {
         install_pdf_printer
     fi
 
-    # 显示 HP 插件安装提示
+    # 安装 HP 插件
     if [ "$install_hp" = true ]; then
-        show_hplip_plugin_notice
+        install_hplip_plugin
     fi
 }
 
@@ -1023,8 +1086,11 @@ EOF
 install_pdf_printer() {
     info "安装虚拟 PDF 打印机..."
 
-    # 安装 cups-pdf 包
-    apt install -y cups-pdf
+    # 安装 cups-pdf 包（Debian 13+ 包名改为 printer-driver-cups-pdf）
+    apt install -y printer-driver-cups-pdf 2>/dev/null || apt install -y cups-pdf 2>/dev/null || {
+        warn "cups-pdf 包不可用，跳过虚拟 PDF 打印机安装"
+        return 0
+    }
 
     # 等待 CUPS 服务就绪
     sleep 2