The printer outputs plain papers.

My system is Ubuntu 16.04, and my printer is HP M1216nfh MFP. I followed the instructions of how to install HPLIP and successfully installed it. But when I print a document, the printer always output plain papers. When I print a one-page document, one paper will be used by the printer but nothing are printed on it. When I print a two-page documents, two papers are used with nothing. I believe I have installed the driver successfully because the printer can be controlled, but it just prints nothing.
Here is the outputs while I run 'hp-check -t':
hp-check[27436]: info: :
hp-check[27436]: info: :HP Linux Imaging and Printing System (ver. 3.18.7)
hp-check[27436]: info: :Dependency/Version Check Utility ver. 15.1
hp-check[27436]: info: :
hp-check[27436]: info: :Copyright (c) 2001-15 HP Development Company, LP
hp-check[27436]: info: :This software comes with ABSOLUTELY NO WARRANTY.
hp-check[27436]: info: :This is free software, and you are welcome to distribute it
hp-check[27436]: info: :under certain conditions. See COPYING file for more details.
hp-check[27436]: info: :
hp-check[27436]: info: :Note: hp-check can be run in three modes:
hp-check[27436]: info: :1. Compile-time check mode (-c or --compile): Use this mode before compiling the
hp-check[27436]: info: :HPLIP supplied tarball (.tar.gz or .run) to determine if the proper dependencies
hp-check[27436]: info: :are installed to successfully compile HPLIP.
hp-check[27436]: info: :2. Run-time check mode (-r or --run): Use this mode to determine if a distro
hp-check[27436]: info: :supplied package (.deb, .rpm, etc) or an already built HPLIP supplied tarball
hp-check[27436]: info: :has the proper dependencies installed to successfully run.
hp-check[27436]: info: :3. Both compile- and run-time check mode (-b or --both) (Default): This mode
hp-check[27436]: info: :will check both of the above cases (both compile- and run-time dependencies).
hp-check[27436]: info: :
hp-check[27436]: info: :Check types:
hp-check[27436]: info: :a. EXTERNALDEP - External Dependencies
hp-check[27436]: info: :b. GENERALDEP - General Dependencies (required both at compile and run time)
hp-check[27436]: info: :c. COMPILEDEP - Compile time Dependencies
hp-check[27436]: info: :d. [All are run-time checks]
hp-check[27436]: info: :PYEXT SCANCONF QUEUES PERMISSION
hp-check[27436]: info: :
hp-check[27436]: info: :Status Types:
hp-check[27436]: info: : OK
hp-check[27436]: info: : MISSING - Missing Dependency or Permission or Plug-in
hp-check[27436]: info: : INCOMPAT - Incompatible dependency-version or Plugin-version
hp-check[27436]: info: :
hp-check[27436]: info: :
hp-check[27436]: info: :---------------
hp-check[27436]: info: :| SYSTEM INFO |
hp-check[27436]: info: :---------------
hp-check[27436]: info: :
hp-check[27436]: info: : Kernel: 4.15.0-33-generic #36~16.04.1-Ubuntu SMP Wed Aug 15 17:21:05 UTC 2018 GNU/Linux
 Host: alpaca-PC
 Proc: 4.15.0-33-generic #36~16.04.1-Ubuntu SMP Wed Aug 15 17:21:05 UTC 2018 GNU/Linux
 Distribution: 12 16.04
hp-check[27436]: info: : Bitness: 64 bit

hp-check[27436]: info: :
hp-check[27436]: info: :-----------------------
hp-check[27436]: info: :| HPLIP CONFIGURATION |
hp-check[27436]: info: :-----------------------
hp-check[27436]: info: :
hp-check[27436]: info: :HPLIP-Version: HPLIP 3.18.7
hp-check[27436]: info: :HPLIP-Home: /usr/share/hplip
hp-check[27436]: info: :HPLIP-Installation: Auto installation is supported for ubuntu distro 16.04 version
hp-check[27436]: info: :
hp-check[27436]: info: :Current contents of '/etc/hp/hplip.conf' file:
hp-check[27436]: info: :# hplip.conf. Generated from hplip.conf.in by configure.

[hplip]
version=3.18.7

[dirs]
home=/usr/share/hplip
run=/var/run
ppd=/usr/share/ppd/HP
ppdbase=/usr/share/ppd
doc=/usr/share/doc/hplip-3.18.7
html=/usr/share/doc/hplip-3.18.7
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=3.18.7
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
class-driver=no

hp-check[27436]: info: :
hp-check[27436]: info: :Current contents of '/var/lib/hp/hplip.state' file:
hp-check[27436]: info: :[plugin]
installed = 1
eula = 1
version = 3.18.7

hp-check[27436]: info: :
hp-check[27436]: info: :Current contents of '~/.hplip/hplip.conf' file:
hp-check[27436]: info: :[settings]
systray_visible = 1
systray_messages = 0

[last_used]
device_uri = "hp:/net/HP_LaserJet_Professional_M1216nfh_MFP?zc=NPIB3D57A"
printer_name =
working_dir = .

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

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

[polling]
enable = false
interval = 5
device_list =

[fax]
voice_phone =
email_address =

[upgrade]
notify_upgrade = false
last_upgraded_time = 1536806352
pending_upgrade_time = 0
latest_available_version = 3.17.10

[installation]
date_time = 2018年09月21日 14:33:34
version = 3.18.7

hp-check[27436]: info: : <Package-name> <Package-Desc> <Required/Optional> <Min-Version> <Installed-Version> <Status> <Comment>
hp-check[27436]: info: :
hp-check[27436]: info: :--------------
hp-check[27436]: info: :| COMPILEDEP |
hp-check[27436]: info: :--------------
hp-check[27436]: info: :
hp-check[27436]: info: : gcc gcc - GNU Project C and C++ Compiler REQUIRED - 5.4.0 OK -
hp-check[27436]: info: : make make - GNU make utility to maintain groups of programs REQUIRED 3.0 4.1 OK -
hp-check[27436]: info: : libtool libtool - Library building support services REQUIRED - 2.4.6 OK -
hp-check[27436]: info: :
hp-check[27436]: info: :------------------------
hp-check[27436]: info: :| General Dependencies |
hp-check[27436]: info: :------------------------
hp-check[27436]: info: :
hp-check[27436]: info: : libcrypto libcrypto - OpenSSL cryptographic library REQUIRED - 1.0.2 OK -
hp-check[27436]: info: : python-xml Python XML libraries REQUIRED - 2.1.0 OK -
hp-check[27436]: info: : libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED 5.0.9 5.7.3 OK -
hp-check[27436]: info: : sane-devel SANE - Scanning library development files REQUIRED - 1.0.25 OK -
hp-check[27436]: info: : pil PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL - 1.1.7 OK -
hp-check[27436]: info: : pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4 REQUIRED 4.0 4.11.4 OK -
hp-check[27436]: info: : libpthread libpthread - POSIX threads library REQUIRED - 2.23 OK -
hp-check[27436]: info: : python-devel Python devel - Python development files REQUIRED 2.2 2.7.12 OK -
hp-check[27436]: info: : cups-devel CUPS devel- Common Unix Printing System development files REQUIRED - 2.1.3 OK -
hp-check[27436]: info: : python-dbus Python DBus - Python bindings for DBus REQUIRED 0.80.0 1.2.0 OK -
hp-check[27436]: info: : cups-ddk CUPS DDK - CUPS driver development kit OPTIONAL - - OK -
hp-check[27436]: info: : reportlab Reportlab - PDF library for Python OPTIONAL 2.0 3.3.0 OK -
hp-check[27436]: info: : pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x) REQUIRED 4.0 4.11.4 OK -
hp-check[27436]: info: : libusb libusb - USB library REQUIRED - 1.0 OK -
hp-check[27436]: info: : cups-image CUPS image - CUPS image development files REQUIRED - 2.1.3 OK -
hp-check[27436]: info: : python2X Python 2.2 or greater - Python programming language REQUIRED 2.2 2.7.12 OK -
hp-check[27436]: info: : python-notify Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL - - OK -
hp-check[27436]: info: : libjpeg libjpeg - JPEG library REQUIRED - - OK -
hp-check[27436]: info: : sane SANE - Scanning library REQUIRED - 1.0.25 OK -
hp-check[27436]: info: :
hp-check[27436]: info: :----------------------
hp-check[27436]: info: :| Scan Configuration |
hp-check[27436]: info: :----------------------
hp-check[27436]: info: :
hp-check[27436]: info: : scanext Scan-SANE-Extension REQUIRED - 3.18.7 OK -
hp-check[27436]: info: : hpaio HPLIP-SANE-Backend REQUIRED - 3.18.7 OK 'hpaio found in /etc/sane.d/dll.conf'
hp-check[27436]: info: :
hp-check[27436]: info: :-------------------------
hp-check[27436]: info: :| External Dependencies |
hp-check[27436]: info: :-------------------------
hp-check[27436]: info: :
hp-check[27436]: info: : gs GhostScript - PostScript and PDF language interpreter and previewer REQUIRED 7.05 9.18 OK -
hp-check[27436]: info: : scanimage scanimage - Shell scanning program OPTIONAL 1.0 1.0.25 OK -
hp-check[27436]: info: : cups CUPS - Common Unix Printing System REQUIRED 1.1 2.1.3 OK 'CUPS Scheduler is running'
hp-check[27436]: info: : network network -wget OPTIONAL - 1.17.1 OK -
hp-check[27436]: info: : policykit PolicyKit - Administrative policy framework OPTIONAL - 0.105 OK -
hp-check[27436]: info: : xsane xsane - Graphical scanner frontend for SANE OPTIONAL 0.9 0.999 OK -
hp-check[27436]: info: : dbus DBus - Message bus system REQUIRED - 1.10.6 OK -
hp-check[27436]: info: : avahi-utils avahi-utils OPTIONAL - 0.6.32 OK -
hp-check[27436]: info: :
hp-check[27436]: info: :---------------------
hp-check[27436]: info: :| Python Extentions |
hp-check[27436]: info: :---------------------
hp-check[27436]: info: :
hp-check[27436]: info: : hpmudext IO-Extension REQUIRED - 3.18.7 OK -
hp-check[27436]: info: : cupsext CUPS-Extension REQUIRED - 3.18.7 OK -
hp-check[27436]: info: :
hp-check[27436]: info: :------------------------------
hp-check[27436]: info: :| DISCOVERED SCANNER DEVICES |
hp-check[27436]: info: :------------------------------
hp-check[27436]: info: :
hp-check[27436]: info: :device `hpaio:/net/HP_LaserJet_Professional_M1216nfh_MFP?zc=NPIB3D57A' is a Hewlett-Packard HP_LaserJet_Professional_M1216nfh_MFP all-in-one
device `hpaio:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6' is a Hewlett-Packard HP_LaserJet_Professional_M1216nfh_MFP all-in-one

hp-check[27436]: info: :
hp-check[27436]: info: :--------------------------
hp-check[27436]: info: :| DISCOVERED USB DEVICES |
hp-check[27436]: info: :--------------------------
hp-check[27436]: info: :
hp-check[27436]: info: :No devices found.
hp-check[27436]: info: :
hp-check[27436]: info: :---------------------------------
hp-check[27436]: info: :| INSTALLED CUPS PRINTER QUEUES |
hp-check[27436]: info: :---------------------------------
hp-check[27436]: info: :
hp-check[27436]: info: :
hp-check[27436]: info: :Hewlett-Packard-HP-LaserJet-Professional-M1216nfh-MFP
hp-check[27436]: info: :-----------------------------------------------------
hp-check[27436]: info: :Type: Printer
hp-check[27436]: info: :Device URI: hp:/net/HP_LaserJet_Professional_M1216nfh_MFP?zc=NPIB3D57A
hp-check[27436]: info: :PPD: /etc/cups/ppd/Hewlett-Packard-HP-LaserJet-Professional-M1216nfh-MFP.ppd
warning: Failed to read /etc/cups/ppd/Hewlett-Packard-HP-LaserJet-Professional-M1216nfh-MFP.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer Hewlett-Packard-HP-LaserJet-Professional-M1216nfh-MFP is idle. enabled since 2018年09月05日 星期三 14时26分43秒
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :HP_LaserJet_Professional_M1216nfh_MFP
hp-check[27436]: info: :-------------------------------------
hp-check[27436]: info: :Type: Printer
hp-check[27436]: info: :Device URI: hp:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6
hp-check[27436]: info: :PPD: /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP.ppd
warning: Failed to read /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer HP_LaserJet_Professional_M1216nfh_MFP is idle. enabled since 2018年09月20日 星期四 12时12分24秒
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :HP_LaserJet_Professional_M1216nfh_MFP_2
hp-check[27436]: info: :---------------------------------------
hp-check[27436]: info: :Type: Printer
hp-check[27436]: info: :Device URI: hp:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6
hp-check[27436]: info: :PPD: /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_2.ppd
warning: Failed to read /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_2.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer HP_LaserJet_Professional_M1216nfh_MFP_2 is idle. enabled since 2018年09月21日 星期五 14时21分08秒
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :HP_LaserJet_Professional_M1216nfh_MFP_3
hp-check[27436]: info: :---------------------------------------
hp-check[27436]: info: :Type: Printer
hp-check[27436]: info: :Device URI: hp:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6
hp-check[27436]: info: :PPD: /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_3.ppd
warning: Failed to read /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_3.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer HP_LaserJet_Professional_M1216nfh_MFP_3 is idle. enabled since 2018年09月21日 星期五 14时26分41秒
 ready to print
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :HP_LaserJet_Professional_M1216nfh_MFP_fax
hp-check[27436]: info: :-----------------------------------------
hp-check[27436]: info: :Type: Fax
hp-check[27436]: info: :Device URI: hpfax:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6
hp-check[27436]: info: :PPD: /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_fax.ppd
warning: Failed to read /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_fax.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer HP_LaserJet_Professional_M1216nfh_MFP_fax is idle. enabled since 2018年09月05日 星期三 15时05分20秒
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :HP_LaserJet_Professional_M1216nfh_MFP_fax_2
hp-check[27436]: info: :-------------------------------------------
hp-check[27436]: info: :Type: Fax
hp-check[27436]: info: :Device URI: hpfax:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6
hp-check[27436]: info: :PPD: /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_fax_2.ppd
warning: Failed to read /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_fax_2.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer HP_LaserJet_Professional_M1216nfh_MFP_fax_2 is idle. enabled since 2018年09月21日 星期五 14时21分08秒
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :HP_LaserJet_Professional_M1216nfh_MFP_fax_3
hp-check[27436]: info: :-------------------------------------------
hp-check[27436]: info: :Type: Fax
hp-check[27436]: info: :Device URI: hpfax:/net/HP_LaserJet_Professional_M1216nfh_MFP?ip=192.168.1.6
hp-check[27436]: info: :PPD: /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_fax_3.ppd
warning: Failed to read /etc/cups/ppd/HP_LaserJet_Professional_M1216nfh_MFP_fax_3.ppd ppd file
hp-check[27436]: info: :PPD Description:
hp-check[27436]: info: :Printer status: printer HP_LaserJet_Professional_M1216nfh_MFP_fax_3 is idle. enabled since 2018年09月21日 星期五 14时23分16秒
hp-check[27436]: info: :Required plug-in status: Installed
hp-check[27436]: info: :Communication status: Good
hp-check[27436]: info: :
hp-check[27436]: info: :
hp-check[27436]: info: :--------------
hp-check[27436]: info: :| PERMISSION |
hp-check[27436]: info: :--------------
hp-check[27436]: info: :
hp-check[27436]: info: :No errors or warnings.
hp-check[27436]: info: :
hp-check[27436]: info: :Done.