我刚刚在 Lenovo Yoga 730 上全新安装了 Ubuntu 20.04.1。我有一台无线 HP Photosmart C4780，我已在另一台 Ubuntu 20.04 和 Ubuntu 18.04 机器上成功安装了它，只需使用
hp-setup 192.168.0.22
当我第一次登录到新安装时，我使用了
apt list --installed
这表明 hplip 和 hplip-data 已安装。我运行
apt install hplip-gui
然后尝试
hp-setup 192.168.0.22
失败并出现错误
error: Printer queue setup failed. Error : successful-ok-ignored-or-substituted-attributes
为了检查哪里出了问题，我运行了
hp-doctor
这使
HP Linux Imaging and Printing System (ver. 3.20.3)
Self Diagnse Utility and Healing Utility ver. 1.0
Copyright (c) 2001-18 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.
HP Linux Imaging and Printing System (ver. 3.20.3)
Self Diagnse Utility and Healing Utility ver. 1.0
Copyright (c) 2001-18 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.
Checking for Deprecated items....
No Deprecated items are found
Checking for HPLIP updates....
error: Failed to locate hp-upgrade utility
Checking for Dependencies....
warning: ubuntu-20.04 version is not supported. Using ubuntu-19.10 versions dependencies to verify and install...
---------------
| SYSTEM INFO |
---------------
Kernel: 5.4.0-48-generic #52-Ubuntu SMP Thu Sep 10 10:58:49 UTC 2020 GNU/Linux
Host: nell
Proc: 5.4.0-48-generic #52-Ubuntu SMP Thu Sep 10 10:58:49 UTC 2020 GNU/Linux
Distribution: ubuntu 20.04
Bitness: 64 bit
-----------------------
| HPLIP CONFIGURATION |
-----------------------
HPLIP-Version: HPLIP 3.20.3
HPLIP-Home: /usr/share/hplip
warning: HPLIP-Installation: Auto installation is not supported for ubuntu distro 20.04 version
Current contents of '/etc/hp/hplip.conf' file:
# hplip.conf. Generated from hplip.conf.in by configure.
[hplip]
version=3.20.3
[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=no
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=no
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.20.3
restricted-build=no
ui-toolkit=qt5
qt3=no
qt4=no
qt5=yes
policy-kit=yes
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=no
class-driver=no
Current contents of '/var/lib/hp/hplip.state' file:
[plugin]
installed = 1
eula = 1
version = 3.20.3
Current contents of '~/.hplip/hplip.conf' file:
[last_used]
device_uri = hp:/net/Photosmart_C4700_series?ip=192.168.0.22
[installation]
date_time = 09/22/20 18:30:55
version = 3.20.3
<Package-name> <Package-Desc> <Required/Optional> <Min-Version> <Installed-Version> <Status> <Comment>
-------------------------
| External Dependencies |
-------------------------
error: cups CUPS - Common Unix Printing System REQUIRED 1.1 - INCOMPAT 'CUPS may not be installed or not running'
gs GhostScript - PostScript and PDF language interpreter and previewer REQUIRED 7.05 9.50 OK -
error: xsane xsane - Graphical scanner frontend for SANE OPTIONAL 0.9 - MISSING 'xsane needs to be installed'
scanimage scanimage - Shell scanning program OPTIONAL 1.0 1.0.29 OK -
error: dbus DBus - Message bus system REQUIRED - 1.12.16 MISSING 'DBUS may not be installed or not running'
policykit PolicyKit - Administrative policy framework OPTIONAL - 0.105 OK -
network network -wget OPTIONAL - 1.20.3 OK -
avahi-utils avahi-utils OPTIONAL - 0.7 OK -
------------------------
| General Dependencies |
------------------------
error: libjpeg libjpeg - JPEG library REQUIRED - - MISSING 'libjpeg needs to be installed'
error: cups-devel CUPS devel- Common Unix Printing System development files REQUIRED - - MISSING 'cups-devel needs to be installed'
error: cups-image CUPS image - CUPS image development files REQUIRED - - MISSING 'cups-image needs to be installed'
error: libpthread libpthread - POSIX threads library REQUIRED - b'2.31' MISSING 'libpthread needs to be installed'
error: libusb libusb - USB library REQUIRED - 1.0 MISSING 'libusb needs to be installed'
sane SANE - Scanning library REQUIRED - - OK -
error: sane-devel SANE - Scanning library development files REQUIRED - - MISSING 'sane-devel needs to be installed'
error: libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED 5.0.9 - MISSING 'libnetsnmp-devel needs to be installed'
error: libcrypto libcrypto - OpenSSL cryptographic library REQUIRED - 1.1.1 MISSING 'libcrypto needs to be installed'
python3X Python 2.2 or greater - Python programming language REQUIRED 2.2 3.8.2 OK -
python3-notify2 Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL - - OK -
error: python3-pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4 OPTIONAL 4.0 - MISSING 'python3-pyqt4-dbus needs to be installed'
error: python3-pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x) REQUIRED 4.0 - MISSING 'python3-pyqt4 needs to be installed'
python3-dbus Python DBus - Python bindings for DBus REQUIRED 0.80.0 1.2.16 OK -
python3-xml Python XML libraries REQUIRED - 2.2.9 OK -
error: python3-devel Python devel - Python development files REQUIRED 2.2 3.8.2 MISSING 'python3-devel needs to be installed'
python3-pil PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL - 7.0.0 OK -
python3-reportlab Reportlab - PDF library for Python OPTIONAL 2.0 3.5.34 OK -
--------------
| COMPILEDEP |
--------------
error: libtool libtool - Library building support services REQUIRED - - MISSING 'libtool needs to be installed'
error: gcc gcc - GNU Project C and C++ Compiler REQUIRED - - MISSING 'gcc needs to be installed'
error: make make - GNU make utility to maintain groups of programs REQUIRED 3.0 - MISSING 'make needs to be installed'
---------------------
| Python Extentions |
---------------------
cupsext CUPS-Extension REQUIRED - 3.20.3 OK -
hpmudext IO-Extension REQUIRED - 3.20.3 OK -
----------------------
| Scan Configuration |
----------------------
'/etc/sane.d/dll.d/hpaio' not found.
hpaio HPLIP-SANE-Backend REQUIRED - 3.20.3 OK 'hpaio found in /etc/sane.d/dll.conf'
scanext Scan-SANE-Extension REQUIRED - 3.20.3 OK -
------------------------------
| DISCOVERED SCANNER DEVICES |
------------------------------
No Scanner found.
--------------------------
| DISCOVERED USB DEVICES |
--------------------------
No devices found.
---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------
lpstat
------
Type: Unknown
Device URI: No destinations added.
--------------
| PERMISSION |
--------------
Missing Required Dependencies
-----------------------------
error: 'libcups2' package is missing or 'cups' service is not running.
error: 'libdbus-1-dev' package is missing/incompatible
error: 'libjpeg-dev' package is missing/incompatible
error: 'libcups2-dev' package is missing or 'cups' service is not running.
error: 'cups-bsd' package is missing or 'cups' service is not running.
error: 'cups-client' package is missing or 'cups' service is not running.
error: 'libcupsimage2-dev' package is missing or 'cups' service is not running.
error: 'build-essential' package is missing/incompatible
error: 'libusb-1.0.0-dev' package is missing/incompatible
error: 'libusb-0.1-4' package is missing/incompatible
error: 'libsane-dev' package is missing/incompatible
error: 'libsnmp-dev' package is missing/incompatible
error: 'snmp-mibs-downloader' package is missing/incompatible
error: 'openssl' package is missing/incompatible
error: 'python3-pyqt4' package is missing/incompatible
error: 'gtk2-engines-pixbuf' package is missing/incompatible
error: 'python3-dev' package is missing/incompatible
error: 'libtool' package is missing/incompatible
error: 'libtool-bin' package is missing/incompatible
error: 'build-essential' package is missing/incompatible
error: 'build-essential' package is missing/incompatible
Missing Optional Dependencies
-----------------------------
error: 'gtk2-engines-pixbuf' package is missing/incompatible
error: 'xsane' package is missing/incompatible
error: 'python3-dbus.mainloop.qt' package is missing/incompatible
ENTER SUDO PASSWORD
-------------------
Please enter the sudoer password:
Checking Permissions....
Checking for Configured Queues....
No Queue added
warning: No Queue(s) configured.
Checking for HP Properitery Plugin's....
No plug-in printers are configured.
Diagnose completed...
More information on Troubleshooting,How-To's and Support is available on http://hplipopensource.com/hplip-web/index.html
第一个看起来奇怪的是报告称 Ubuntu 20.04 上的 hplip-gui 是针对 qt5 编译的。另外，许多报告缺失/不兼容的软件包已经安装（通过 apt）。
在全新安装之前，我尝试apt purge删除所有 hplip 并重新安装它们，但从未成功。我尝试了几次，最终不知何故破坏了我的系统，导致我进行全新安装。
我不确定接下来要做什么才能使 hplip 正常工作。
答案1
尝试这个：
将文件下载到〜/Dowloads
https://sourceforge.net/projects/hplip/files/hplip/3.20.6/hplip-3.20.6.run/download?use_mirror=nchc
打开终端并删除以前安装的版本：
sudo apt remove hplip*
Cd 到下载安装程序的位置。
cd ~/Downloads
要安装，请运行以下命令：
sh hplip-3.20.6.run
选择安装模式自动，输入a
确保安装程序检测到正确的 Linux 发行版。
输入您的 root/超级用户用户密码。
安装程序现在将检测系统在安装 HPLIP 之前需要安装哪些依赖项
如果您的系统缺少任何依赖项，现在就会下载并安装它们。
./configure 准备安装 HPLIP，并且验证您的系统具有 HPLIP 所需的所有依赖项。
然后执行“make”。Make 会为您的系统编译（“构建”）HPLIP。
“make install” 是实际的安装过程，此步骤是将 HPLIP 实际安装到您的系统中。
使用“hp-setup”来配置您的打印机。
第一步是选择打印机连接类型。
接下来安装工具将显示检测到的打印机。
选择用于您的打印机的 PPD 文件，通常您需要选择推荐的 PPD 文件。
单击“添加打印机”即可完成打印机设置过程。
答案2
您必须安装 python3 和所有工具包。
sudo apt install python3-pip
sudo apt-get install --assume-yes python3-pyqt5
sudo apt-get install --assume-yes python3-dbus.mainloop.pyqt5
sudo apt-get install --assume-yes python3-notify
然后，当您运行时hplip对旧 python 的安装失败做出响应“否”。
sh hplip-3.20.9.run
最后：
sudo apt-get install libcanberra-gtk-module
这似乎是必要的，尽管我不知道为什么。删除打印机然后重新安装，它应该可以工作。
答案3
我从 hplip 的 launchpad 网站上找到了一个对我有用的解决方案。它是第 7 篇帖子此主题。我在问题中描述的问题是由于 Ubuntu 20.04 使用 python3 并且对 python2 的支持减少而导致的。如果 /usr/bin/python 链接到 python 2 版本，则运行 hplip-3.20.**.run 会出现报告的问题，尝试安装必要的 python 组件但失败。
要诊断此问题，请运行
python --version
如果你得到的版本以 2 开头，则修复方法如下
sudo unlink /usr/bin/python
sudo ln -s /usr/bin/python3.* /usr/bin/python
其中 python3.* 是您安装的 python3 版本。您可以通过运行
ls /usr/bin/python*
一旦我这样做然后运行
sh hplip-3.20.**.run
工作良好
答案4
如果您不想手动更新符号链接（如 brett stevens 建议的那样），您可以使用python-is-python3：
sudo apt install python-is-python3
然后重新安装 hplip。