很多文章经过试验都是不行的，
这篇文帐是可以的
主要是配置文件这块。
#Only listen for connections from the local machine.
Listen localhost:631
Listen IP:631
Listen /var/run/cups/cups.sock
#也可以直接改为Port 631监听所有端口
# Show shared printers on the local network.
Browsing On
BrowseOrder deny,allow
............
BrowseAllow @LOCAL
#Show printers shared by other systems
BrowseAddress @LOCAL
#Share printers connected to this system
#Allow @LOCAL表示允许本地子网
# Default authentication type, when authentication is required...
DefaultAuthType Basic
DefaultEncryption IfRequested
#上面加密还可以改成Never.因为不知道什么原因使用https://ip:631总是打不开
# Restrict access to the server...
<Location />
Order deny,allow
Deny From All
Allow From 127.0.0.1
Allow From 192.168.1.*
Allow @LOCAL
..........
</Location>
# Restrict access to the admin pages...
<Location /admin>
#Encryption Required
Encryption Never
Order deny,allow
Deny From All
Allow From 127.0.0.1
Allow From 192.168.1
Allow @LOCAL
</Location>
# Restrict access to configuration files...
<Location /admin/conf>
Encryption Never
AuthType Default
Require user @SYSTEM
#Order allow,deny
Order deny,allow
Deny From All
Allow From 127.0.0.1
Allow From 192.168.1
Allow @LOCAL
</Location>
# Set the default printer/job policies...
.......................