ubuntu下无法识别打印机，求教！

Question

• 我自己的笔记本（基于Ubuntu 16.04的budgie-remix的发行版）和朋友的NUC主机（Linux Mint 17.3），各连接了一台 HP LaserJet 1020 Plus ，安装了 HPLIP 和 plugin 3.16.5。因为朋友的机器只能通过远程控制，所以打算在本机调试找出原因后再处理远程机器。

• 两个环境第一次连接识别成功，并成功打印测试页，点击添加后随即出现 communication error (5012)。删除后就再也识别不到打印机。终端运行 hp-setup 提示error: No devices found on bus: usb。

• NUC：运行lsusb，有打印机连接，但运行在这个帖子 https://bugs.launchpad.net/hplip/+bug/535056 下看到把当前用户添加到lp组，重启终端lsusb，发现打印机的连接没了

• 笔记本：运行 lsusb，未显示有打印机连接；重新插拔USB线后马上运行lsusb，明显卡顿但输出仍无打印机连接。拔出打印线，重启打印机，再插入打印线，触发打印机自检，lsusb可见打印机，回显如下：

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 138a:0050 Validity Sensors, Inc. Swipe Fingerprint Sensor
Bus 001 Device 004: ID 05c8:0379 Cheng Uei Precision Industry Co., Ltd (Foxlink) 
Bus 001 Device 003: ID 8087:07dc Intel Corp. 
Bus 001 Device 015: ID 03f0:2b17 Hewlett-Packard LaserJet 1020
Bus 001 Device 002: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

• 此时运行hp-setup 001:015,提示

HP Linux Imaging and Printing System (ver. 3.16.5)
Printer/Fax Setup Utility ver. 9.0

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.

Searching for device...
error:  Device not found.   Please make sure your printer is properly connected and powered-on.

Done.

• hp-check -t

Saving output in log file: /home/borgchen/hp-check.log

HP Linux Imaging and Printing System (ver. 3.16.5)
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: 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 GNU/Linux
 Host: borgchen-Notebook
 Proc: 4.4.0-21-generic #37-Ubuntu SMP Mon Apr 18 18:33:37 UTC 2016 GNU/Linux
 Distribution: 12 16.04
 Bitness: 64 bit


-----------------------
| HPLIP CONFIGURATION |
-----------------------

HPLIP-Version: HPLIP 3.16.5
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=3.16.5

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/HP
ppdbase=/usr/share/ppd
doc=/usr/share/doc/hplip-3.16.5
html=/usr/share/doc/hplip-3.16.5
icon=/usr/share/applications
cupsbackend=/usr/lib/cups/backend
cupsfilter=/usr/lib/cups/filter
drv=/usr/share/cups/drv/hp
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=no
foomatic-drv-install=no
foomatic-ppd-install=no
foomatic-rip-hplip-install=no
hpcups-install=yes
cups-drv-install=yes
cups-ppd-install=no
internal-tag=3.16.5
restricted-build=no
ui-toolkit=qt4
qt3=no
qt4=yes
qt5=no
policy-kit=no
lite-build=no
udev_sysfs_rules=no
hpcups-only-build=no
hpijs-only-build=no
apparmor_build=yes


Current contents of '/var/lib/hp/hplip.state' file:
[plugin]
installed = 1
eula = 1
version = 3.16.5



Current contents of '~/.hplip/hplip.conf' file:
[upgrade]
notify_upgrade = false
last_upgraded_time = 1462431371
pending_upgrade_time = 0
latest_available_version = 3.16.5

[settings]
systray_visible = 0
systray_messages = 0

[last_used]
device_uri = "hp:/usb/HP_LaserJet_1020?serial=S40VK0P"
printer_name = 
working_dir = /home/borgchen/Downloads/hplip-3.16.5/hplip-3.16.5-plugin.run

[commands]
scan = /usr/bin/xsane -V %SANE_URI%

[refresh]
rate = 30
enable = true
type = 1

[polling]
enable = false
interval = 5
device_list = 

[fax]
voice_phone = 
email_address = 

[installation]
date_time = 2016年05月06日 15:42:24
version = 3.16.5


 <Package-name>        <Package-Desc>      <Required/Optional> <Min-Version> <Installed-Version> <Status>   <Comment>

--------------
| COMPILEDEP |
--------------

 gcc                  gcc - GNU Project C and C++ Compiler                         REQUIRED        -               5.3.1           OK         -
 make                 make - GNU make utility to maintain groups of programs       REQUIRED        3.0             4.1             OK         -
 libtool              libtool - Library building support services                  REQUIRED        -               2.4.6           OK         -

------------------------
| General Dependencies |
------------------------

 libcrypto            libcrypto - OpenSSL cryptographic library                    REQUIRED        -               1.0.2           OK         -
 python-xml           Python XML libraries                                         REQUIRED        -               2.1.0           OK         -
 libnetsnmp-devel     libnetsnmp-devel - SNMP networking library development files REQUIRED        5.0.9           5.7.3           OK         -
 sane-devel           SANE - Scanning library development files                    REQUIRED        -               1.0.25          OK         -
 pil                  PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL        -               1.1.7           OK         -
 pyqt4-dbus           PyQt 4 DBus - DBus Support for PyQt4                         REQUIRED        4.0             4.11.4          OK         -
 libpthread           libpthread - POSIX threads library                           REQUIRED        -               2.23            OK         -
 python-devel         Python devel - Python development files                      REQUIRED        2.2             2.7.11          OK         -
 cups-devel           CUPS devel- Common Unix Printing System development files    REQUIRED        -               2.1.3           OK         -
 python-dbus          Python DBus - Python bindings for DBus                       REQUIRED        0.80.0          1.2.0           OK         -
 cups-ddk             CUPS DDK - CUPS driver development kit                       OPTIONAL        -               -               OK         -
 reportlab            Reportlab - PDF library for Python                           OPTIONAL        2.0             3.3.0           OK         -
 pyqt4                PyQt 4- Qt interface for Python (for Qt version 4.x)         REQUIRED        4.0             4.11.4          OK         -
 libusb               libusb - USB library                                         REQUIRED        -               1.0             OK         -
 cups-image           CUPS image - CUPS image development files                    REQUIRED        -               2.1.3           OK         -
 python2X             Python 2.2 or greater - Python programming language          REQUIRED        2.2             2.7.11          OK         -
 python-notify        Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL        -               -               OK         -
 libjpeg              libjpeg - JPEG library                                       REQUIRED        -               -               OK         -
 sane                 SANE - Scanning library                                      REQUIRED        -               1.0.25          OK         -

----------------------
| Scan Configuration |
----------------------

 scanext              Scan-SANE-Extension                                          REQUIRED        -               3.16.5          OK         -
 hpaio                HPLIP-SANE-Backend                                           REQUIRED        -               3.16.5          OK         'hpaio found in /etc/sane.d/dll.conf'

-------------------------
| External Dependencies |
-------------------------

 gs                   GhostScript - PostScript and PDF language interpreter and previewer REQUIRED        7.05            9.18            OK         -
 cups                 CUPS - Common Unix Printing System                           REQUIRED        1.1             2.1.3           OK         'CUPS Scheduler is running'
 network              network -wget                                                OPTIONAL        -               1.17.1          OK         -
 scanimage            scanimage - Shell scanning program                           OPTIONAL        1.0             1.0.25          OK         -
 policykit            PolicyKit - Administrative policy framework                  OPTIONAL        -               0.105           OK         -
 xsane                xsane - Graphical scanner frontend for SANE                  OPTIONAL        0.9             0.999           OK         -
 dbus                 DBus - Message bus system                                    REQUIRED        -               1.10.6          OK         -
 avahi-utils          avahi-utils                                                  OPTIONAL        -               0.6.32          OK         -

---------------------
| Python Extentions |
---------------------

 hpmudext             IO-Extension                                                 REQUIRED        -               3.16.5          OK         -
 cupsext              CUPS-Extension                                               REQUIRED        -               3.16.5          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 |
--------------

No errors or warnings.

Done.

• 并弹出警告框

HPLIP cannot detect devices in your network. This may be due to existing firewall settings blocking the required ports like (5353/udp). When you are in a trusted network environment, you may open the ports for network services like mdns and slp in the firewall. For detailed steps follow the link.

 http://hplipopensource.com/node/375

• 但我并未开启防火墙，cat /etc/services

mdns        5353/tcp            # Multicast DNS
mdns        5353/udp

• 我记得之前装Ubuntu 15.04 还是15.10的时候，一连接上打印机就自己识别成功，但没试过重启后行不行，这个求助帖发出去之后，就打算重装回去看看，太难受了，汗。主要是朋友那台迷你主机，现在能够安装成功稳定运行的也就是Linux Mint 17.3。

Answer 1

执行 hp-setup -i 或者 hp-plugin -i 命令,按照提示进行操作.我也遇到过类似的问题能链接不能打印,应该是缺少类似 hplip-3.9.8-plugin 插件导致的,装上之后就好了