我需要在 Lubuntu 16.04 上安装网络打印机：HP-LaserJet-Pro-MFP-m125nw。
- 我已经安装了 HPLIP
- 我可以在打印机中看到带有绿色标记的打印机
- 我可以将作业发送到打印机
但他们实际上并没有打印并且该作业被标记为正在处理。
笔记：
- 使用简单扫描，我可以成功扫描任何文档。
- 我注意到，如果我使用 USB 安装打印机，它工作正常，所以我想问题只出现在尝试在网络上安装打印机时
您能指出可能存在什么问题以及如何解决它吗？
以下是运行 hp-check 的结果：
我看到一个警告：
Failed to read /etc/cups/ppd/HP-LaserJet-Pro-MFP-m125nw.ppd ppd file
HP Linux Imaging and Printing System (ver. 3.16.3)
Dependency/Version Check Utility ver. 15.1
Copyright (c) 2001-15 HP Development Company, LP
This software comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to distribute it
under certain conditions. See COPYING file for more details.
Note: hp-check can be run in three modes:
1. Compile-time check mode (-c or --compile): Use this mode before compiling the
HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
are installed to successfully compile HPLIP.
2. Run-time check mode (-r or --run): Use this mode to determine if a distro
supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball
has the proper dependencies installed to successfully run.
3. Both compile- and run-time check mode (-b or --both) (Default): This mode
will check both of the above cases (both compile- and run-time dependencies).
Check types:
a. EXTERNALDEP - External Dependencies
b. GENERALDEP - General Dependencies (required both at compile and run time)
c. COMPILEDEP - Compile time Dependencies
d. [All are run-time checks]
PYEXT SCANCONF QUEUES PERMISSION
Status Types:
OK
MISSING - Missing Dependency or Permission or Plug-in
INCOMPAT - Incompatible dependency-version or Plugin-version
---------------
| SYSTEM INFO |
---------------
Kernel: 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 GNU/Linux
Host: sixpo-ThinkPad-Edge-E440
Proc: 4.4.0-22-generic #39-Ubuntu SMP Thu May 5 16:53:32 UTC 2016 GNU/Linux
Distribution: ubuntu 16.04
Bitness: 64 bit
-----------------------
| HPLIP CONFIGURATION |
-----------------------
HPLIP-Version: HPLIP 3.16.3
HPLIP-Home: /usr/share/hplip
HPLIP-Installation: Auto installation is supported for ubuntu distro 16.04 version
Current contents of '/etc/hp/hplip.conf' file:
# hplip.conf. Generated from hplip.conf.in by configure.
[hplip]
version=3.16.3
[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/hplip/HP
ppdbase=/usr/share/ppd/hplip
doc=/usr/share/doc/hplip
html=/usr/share/doc/hplip-doc
icon=no
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv
bin=/usr/bin
apparmor=/etc/apparmor.d
# Following values are determined at configure time and cannot be changed.
[configure]
network-build=yes
libusb01-build=no
pp-build=yes
gui-build=yes
scanner-build=yes
fax-build=yes
dbus-build=yes
cups11-build=no
doc-build=yes
shadow-build=no
hpijs-install=yes
foomatic-drv-install=yes
foomatic-ppd-install=yes
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.16.3
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
policy-kit=yes
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=no
Current contents of '/var/lib/hp/hplip.state' file:
[plugin]
installed = 1
eula = 1
version = 3.16.3
Current contents of '~/.hplip/hplip.conf' file:
[last_used]
device_uri = hp:/net/HP_LaserJet_Pro_MFP_M125nw?ip=10.0.0.5
[installation]
date_time = 05/29/16 10:34:59
version = 3.16.3
<Package-name> <Package-Desc> <Required/Optional> <Min-Version> <Installed-Version> <Status> <Comment>
--------------------------
| External Dependencies |
--------------------------
cups CUPS - Common Unix Printing System REQUIRED 1.1 2.1.3 OK 'CUPS Scheduler is running'
scanimage scanimage - Shell scanning program OPTIONAL 1.0 1.0.25 OK -
xsane xsane - Graphical scanner frontend for SANE OPTIONAL 0.9 0.999 OK -
network network -wget OPTIONAL - 1.17.1 OK -
policykit PolicyKit - Administrative policy framework OPTIONAL - 0.105 OK -
avahi-utils avahi-utils OPTIONAL - 0.6.32 OK -
gs GhostScript - PostScript and PDF language interpreter and previewer REQUIRED 7.05 9.18 OK -
dbus DBus - Message bus system REQUIRED - 1.10.6 OK -
-------------------------
| General Dependencies |
-------------------------
python3-dbus Python DBus - Python bindings for DBus REQUIRED 0.80.0 1.2.0 OK -
python3-reportlab Reportlab - PDF library for Python OPTIONAL 2.0 3.3.0 OK -
cups-image CUPS image - CUPS image development files REQUIRED - 2.1.3 OK -
python3-xml Python XML libraries REQUIRED - 2.1.0 OK -
libpthread libpthread - POSIX threads library REQUIRED - b'2.23' OK -
cups-devel CUPS devel- Common Unix Printing System development files REQUIRED - 2.1.3 OK -
libusb libusb - USB library REQUIRED - 1.0 OK -
python3-devel Python devel - Python development files REQUIRED 2.2 3.5.1 OK -
libjpeg libjpeg - JPEG library REQUIRED - - OK -
python3-pil PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL - 1.1.7 OK -
python3X Python 2.2 or greater - Python programming language REQUIRED 2.2 3.5.1 OK -
python3-pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4 OPTIONAL 4.0 4.11.4 OK -
python3-pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x) REQUIRED 4.0 4.11.4 OK -
sane SANE - Scanning library REQUIRED - 1.0.25 OK -
sane-devel SANE - Scanning library development files REQUIRED - 1.0.25 OK -
python3-notify2 Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL - - OK -
libcrypto libcrypto - OpenSSL cryptographic library REQUIRED - 1.0.2 OK -
libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED 5.0.9 5.7.3 OK -
---------------
| COMPILEDEP |
---------------
gcc gcc - GNU Project C and C++ Compiler REQUIRED - 5.3.1 OK -
libtool libtool - Library building support services REQUIRED - 2.4.6 OK -
make make - GNU make utility to maintain groups of programs REQUIRED 3.0 4.1 OK -
----------------------
| Python Extentions |
----------------------
cupsext CUPS-Extension REQUIRED - 3.16.3 OK -
hpmudext IO-Extension REQUIRED - 3.16.3 OK -
-----------------------
| Scan Configuration |
-----------------------
scanext Scan-SANE-Extension REQUIRED - 3.16.3 OK -
'/etc/sane.d/dll.d/hpaio' not found.
hpaio HPLIP-SANE-Backend REQUIRED - 3.16.3 OK 'hpaio found in /etc/sane.d/dll.conf'
-----------------------
| Other Dependencies |
-----------------------
------------------------------
| DISCOVERED SCANNER DEVICES |
------------------------------
device `hpaio:/net/HP_LaserJet_Pro_MFP_M125nw?ip=10.0.0.5' is a Hewlett-Packard HP_LaserJet_Pro_MFP_M125nw all-in-one
--------------------------
| DISCOVERED USB DEVICES |
--------------------------
No devices found.
---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------
HP-LaserJet-Pro-MFP-m125nw
--------------------------
Type: Printer
Device URI: hp:/net/HP_LaserJet_Pro_MFP_M125nw?ip=10.0.0.5
PPD: /etc/cups/ppd/HP-LaserJet-Pro-MFP-m125nw.ppd
warning: Failed to read /etc/cups/ppd/HP-LaserJet-Pro-MFP-m125nw.ppd ppd file
PPD Description:
Printer status: printer HP-LaserJet-Pro-MFP-m125nw now printing HP-LaserJet-Pro-MFP-m125nw-6. enabled since Ne 29. květen 2016,Processing page 1...
Required plug-in status: Installed
Communication status: Good
--------------
| PERMISSION |
--------------
No errors or warnings.
Done.
答案1
此警告意味着hp 检查脚本没有读取此文件的权限。
您可以简单地像这样更改权限（打开终端）：
$ sudo chmod 644 /etc/cups/ppd/HP-LaserJet-Pro-MFP-m125nw.ppd
它将授予每个人读取权限，并授予 root 读/写权限。
答案2
我有一台 HP 打印机 PhotoSmart，也遇到了同样的问题...我进入 /etc/cups/ppd/ 并修改了我的 ppd 文件的权限（需要 root 权限）：所有者 Root 读写 - 组 lp 只读 - 其他 不行，我将最后一个权限改为只读，到目前为止，这个方法奏效了！祝你好运！