操作系统：DVD版的 debian11
电脑：联想笔记本
网络：WIFI同一网络
打印机：HP ColorLaserJet MFP M278-M281 无线打印机
图形化操作，无需安装相关驱动。
然后会提示在安装驱动，稍后提示未找到驱动程序。不过在“打印设置”里，已经出现打印机，打了一张测试页，居然成功了。
可以正常打印，不实现扫描功能，就需要安装驱动 hplip 了，具体见下面文章链接。
其他参考资料：
debian11 linux 添加安装惠普打印机 HP ColorLaserJet MFP M278-M281
http://phpsrc.com/os/linux/202112/159.html
linux 惠普扫描命令 hp-scan 用法详解
http://phpsrc.com/os/linux/202112/160.html
debian11 linux 安装惠普打印机驱动 hplip | linux 惠普打印机扫描功能的实现
http://phpsrc.com/os/linux/202112/161.html
debian linux 打印机相关命令详解 lp lpr lpstat
http://phpsrc.com/os/linux/202112/162.html
重启打印机：
sudo /etc/init.d/cups restart
访问打印机：
http://localhost:631/
打印相关配置文件：
/etc/cups/cupsd.conf
打印相关的命令：lp、lpr、lpstat、lpq
lpstat //print cups status information
lpq //show printer queue status
lp 与 lpr 大同小异
phpsrc.com@phpsrc:~$ lpr --help
Usage: lpr [options] [file(s)]
选项：
-# num-copies Specify the number of copies to print
-E Encrypt the connection to the server
-H server[:port] Connect to the named server and port
-m Send an email notification when the job completes
-o option[=value] Specify a printer-specific option
-o job-sheets=standard Print a banner page with the job
-o media=size Specify the media size to use
-o number-up=N Specify that input pages should be printed N-up (1, 2, 4, 6, 9, and 16 are supported)
-o orientation-requested=N
Specify portrait (3) or landscape (4) orientation
-o print-quality=N Specify the print quality - draft (3), normal (4), or best (5)
-o sides=one-sided Specify 1-sided printing
-o sides=two-sided-long-edge
Specify 2-sided portrait printing
-o sides=two-sided-short-edge
Specify 2-sided landscape printing
-P destination Specify the destination
-q Specify the job should be held for printing
-r Remove the file(s) after submission
-T title Specify the job title
-U username Specify the username to use for authentication
lprm //cancel print jobs
phpsrc.com@phpsrc:~$ lprm --help
Usage: lprm [options] [id]
lprm [options] -
选项：
- Cancel all jobs
-E Encrypt the connection to the server
-h server[:port] Connect to the named server and port
-P destination Specify the destination
-U username Specify the username to use for authentication
phpsrc.com@phpsrc:~$ lp --help
Usage: lp [options] [--] [file(s)]
lp [options] -i id
选项：
-c Make a copy of the print file(s)
-d destination Specify the destination
-E Encrypt the connection to the server
-h server[:port] Connect to the named server and port
-H HH:MM Hold the job until the specified UTC time
-H hold Hold the job until released/resumed
-H immediate Print the job as soon as possible
-H restart Reprint the job
-H resume Resume a held job
-i id Specify an existing job ID to modify
-m Send an email notification when the job completes
-n num-copies Specify the number of copies to print
-o option[=value] Specify a printer-specific option
-o job-sheets=standard Print a banner page with the job
-o media=size Specify the media size to use
-o number-up=N Specify that input pages should be printed N-up (1, 2, 4, 6, 9, and 16 are supported)
-o orientation-requested=N
Specify portrait (3) or landscape (4) orientation
-o print-quality=N Specify the print quality - draft (3), normal (4), or best (5)
-o sides=one-sided Specify 1-sided printing
-o sides=two-sided-long-edge
Specify 2-sided portrait printing
-o sides=two-sided-short-edge
Specify 2-sided landscape printing
-P page-list Specify a list of pages to print
-q priority Specify the priority from low (1) to high (100)
-s Be silent
-t title Specify the job title
-U username Specify the username to use for authentication
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