diff --git a/docs/nas-skill/11-printer.md b/docs/nas-skill/11-printer.md
index 01fe46e..41a1948 100644
--- a/docs/nas-skill/11-printer.md
+++ b/docs/nas-skill/11-printer.md
@@ -31,6 +31,8 @@ sidebar_position: 11
 
 浏览器会打开新窗口进入 CPUS 管理页面，选择 Administrator 标签然后点击 Add Printer 按钮进入添加打印机步骤  
 
+用户名和密码，请填写用户名 root 和你设置的终端密码。（默认密码 ecoo1234）  
+
 ![](./img/printer-cups.jpg)
 
 
diff --git a/docs/nas-skill/img/printer-cups.jpg b/docs/nas-skill/img/printer-cups.jpg
index 624d07e..b6ee0c9 100644
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diff --git a/docs/nas-skill/img/printer-home.jpg b/docs/nas-skill/img/printer-home.jpg
index 8123811..7c6e8e3 100644
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