Yes my HP is on the network and the scanning works fine. 

Sent from my iPhone

On Oct 25, 2018, at 7:09 PM, Michael <bmike1@gmail.com> wrote:

so this means I need to connect it via network? 

On Thu, Oct 25, 2018 at 1:53 PM Herminio Hernandez, Jr. <herminio.hernandezjr@gmail.com> wrote:
I have the same issue on my HP ENVY 4500! Here is how I fixed it.

1. remove your printer

2. run this command in terminal as sudo 'hp-setup -i ip address of printer'
   -go through the set up wizard in the terminal and print you test page

3. open simple scan and you should then see your printer. also goto preferences in simple scan and set the resolution

On Thu, Oct 25, 2018 at 10:35 AM Brian Cluff <brian@snaptek.com> wrote:

Do you have the printer connected via USB or the network?

Brian Cluff

On 10/25/18 3:40 AM, Michael wrote:
nope... didn't work.

On Wed, Oct 24, 2018 at 11:06 PM Brian Cluff <brian@snaptek.com> wrote:
Try running your scanner software with sudo from the command line and see if that makes it work.  If it does, then it's a permissions issue.  You  probably just need to add yourself to the scanner group and then logout and back in and it will work.

Brian Cluff

On 10/24/18 7:40 PM, Michael wrote:
    I got this printer and it print beautiful photos.... I was so excited. Then I discovered that the scanner doesn't work (bummer). Anyone know how to get it running> I sent a support request to HP but they haven'y gotten back to me yet. (it has been a couple of days) The information they requested is after my signature followed by my attempt to fix it
From what I've gleaned from it  plugins are not installed (which and how eludes me) and dependencies are not installed.
--
:-)~MIKE~(-:

 $ hp-check -t
Saving output in log file: /home/bmike1/hp-check.log

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

warning: linuxmint-18.3 version is not supported. Using linuxmint-17.3 versions dependencies to verify and install...

---------------
| SYSTEM INFO |
---------------

 Kernel: 4.15.0-36-generic #39~16.04.1-Ubuntu SMP Tue Sep 25 08:59:23 UTC 2018 GNU/Linux
 Host: MikesBeast
 Proc: 4.15.0-36-generic #39~16.04.1-Ubuntu SMP Tue Sep 25 08:59:23 UTC 2018 GNU/Linux
 Distribution: linuxmint 18.3
 Bitness: 64 bit


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

HPLIP-Version: HPLIP 3.16.3
HPLIP-Home: /usr/share/hplip
warning: HPLIP-Installation: Auto installation is not supported for linuxmint distro  18.3 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:
Plugins are not installed. Could not access file: No such file or directory

Current contents of '~/.hplip/hplip.conf' file:
[last_used]
device_uri = hp:/net/OfficeJet_4650_series?zc=HPB05ADA63B749

[installation]
date_time = 10/23/18 22:48:17
version = 3.16.3


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

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

 scanimage            scanimage - Shell scanning program                           OPTIONAL        1.0             1.0.25          OK         -
 avahi-utils          avahi-utils                                                  OPTIONAL        -               0.6.32          OK         -
 error: dbus          DBus - Message bus system                                    REQUIRED        -               1.10.6          MISSING    'DBUS may not be installed or not running'
 policykit            PolicyKit - Administrative policy framework                  OPTIONAL        -               0.105           OK         -
 xsane                xsane - Graphical scanner frontend for SANE                  OPTIONAL        0.9             0.999           OK         -
 gs                   GhostScript - PostScript and PDF language interpreter and previewer REQUIRED        7.05            9.25            OK         -
 error: cups          CUPS - Common Unix Printing System                           REQUIRED        1.1             -               INCOMPAT   'CUPS may not be installed or not running'
 network              network -wget                                                OPTIONAL        -               1.17.1          OK         -

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

 error: python3-devel Python devel - Python development files                      REQUIRED        2.2             3.5.2           MISSING    'python3-devel needs to be installed'
 libpthread           libpthread - POSIX threads library                           REQUIRED        -               b'2.23'         OK         -
 python3-xml          Python XML libraries                                         REQUIRED        -               2.1.0           OK         -
 error: cups-devel    CUPS devel- Common Unix Printing System development files    REQUIRED        -               -               MISSING    'cups-devel needs to be installed'
 python3-pil          PIL - Python Imaging Library (required for commandline scanning with hp-scan) OPTIONAL        -               1.1.7           OK         -
 error: python3-pyqt4 PyQt 4- Qt interface for Python (for Qt version 4.x)         REQUIRED        4.0             -               MISSING    'python3-pyqt4 needs to be installed'
 python3X             Python 2.2 or greater - Python programming language          REQUIRED        2.2             3.5.2           OK         -
 error: python3-pyqt4-dbus PyQt 4 DBus - DBus Support for PyQt4                         OPTIONAL        4.0             -               MISSING    'python3-pyqt4-dbus needs to be installed'
 error: libusb        libusb - USB library                                         REQUIRED        -               1.0             MISSING    'libusb needs to be installed'
 error: libcrypto     libcrypto - OpenSSL cryptographic library                    REQUIRED        -               1.0.2           MISSING    'libcrypto needs to be installed'
 error: python3-notify2 Python libnotify - Python bindings for the libnotify Desktop notifications OPTIONAL        -               -               MISSING    'python3-notify2 needs to be installed'
 python3-dbus         Python DBus - Python bindings for DBus                       REQUIRED        0.80.0          1.2.0           OK         -
 error: libnetsnmp-devel libnetsnmp-devel - SNMP networking library development files REQUIRED        5.0.9           -               MISSING    'libnetsnmp-devel needs to be installed'
 error: libjpeg       libjpeg - JPEG library                                       REQUIRED        -               -               MISSING    'libjpeg needs to be installed'
 error: sane-devel    SANE - Scanning library development files                    REQUIRED        -               -               MISSING    '           needs to be installed'
 python3-reportlab    Reportlab - PDF library for Python                           OPTIONAL        2.0             3.3.0           OK         -
 sane                 SANE - Scanning library                                      REQUIRED        -               -               OK         -
 error: cups-image    CUPS image - CUPS image development files                    REQUIRED        -               -               MISSING    '    needs to be installed'

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

 error: libtool       libtool - Library building support services                  REQUIRED        -               -               MISSING    '                       needs to be installed'
 make                 make - GNU make utility to maintain groups of programs       REQUIRED        3.0             4.1             OK         -
 error: gcc           gcc - GNU Project C and C++ Compiler                         REQUIRED        -               5.4.0           MISSING    'gcc needs to be installed'

----------------------
|  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 |
------------------------------

No Scanner found.

--------------------------
| DISCOVERED USB DEVICES |
--------------------------

No devices found.

---------------------------------
| INSTALLED CUPS PRINTER QUEUES |
---------------------------------

 
HP-ENVY-Photo-7800-series
-------------------------
Type: Unknown
Device URI: usb://HP/ENVY%20Photo%207800%20series?serial=TH85N6V14S&interface=1
PPD: /etc/cups/ppd/HP-ENVY-Photo-7800-series.ppd
warning: Failed to read /etc/cups/ppd/HP-ENVY-Photo-7800-series.ppd ppd file
PPD Description: 
Printer status: printer HP-ENVY-Photo-7800-series is idle.  enabled since Mon 22 Oct 2018 03:00:05 PM EDT
warning: Printer is not HPLIP installed. Printers must use the hp: or hpfax: CUPS backend for HP-Devices.


--------------
| PERMISSION |
--------------

error: Unsupported model: ENVY_Photo_7800_series
 
-----------
| SUMMARY |
-----------

Missing Required Dependencies
-----------------------------
error: 'libdbus-1-dev' package is missing/incompatible 
error: 'libcups2' package is missing/incompatible 
error: 'python3-dev' package is missing/incompatible 
error: 'libcups2-dev' package is missing/incompatible 
error: 'cups-bsd' package is missing/incompatible 
error: 'cups-client' package is missing/incompatible 
error: 'python3-pyqt4' package is missing/incompatible 
error: 'libusb-1.0.0-dev' package is missing/incompatible 
error: 'openssl' package is missing/incompatible 
error: 'libsnmp-dev' package is missing/incompatible 
error: 'snmp-mibs-downloader' package is missing/incompatible 
error: 'libjpeg8-dev' package is missing/incompatible 
error: 'libsane-dev' package is missing/incompatible 
error: 'libcupsimage2-dev' package is missing/incompatible 
error: 'libtool' package is missing/incompatible 
error: 'build-essential' package is missing/incompatible 

Missing Optional Dependencies
-----------------------------
error: 'python3-dbus.mainloop.qt' package is missing/incompatible 
error: 'python3-notify2' package is missing/incompatible 

Total Errors: 15
Total Warnings: 1


Done.

$ sudo apt install python3-devel cups-devel python3-pyqt4 python3-pyqt4-dbus libusb libcrypto python3-notify2 libnetsnmp-devel DBUS dbus cups CUPS libjpeg sane-devel cups-image libtool gcc 
[sudo] password for bmike1: 
Sorry, try again.
[sudo] password for bmike1: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package python3-devel
E: Unable to locate package cups-devel
E: Unable to locate package python3-pyqt4-dbus
E: Unable to locate package libusb
E: Unable to locate package libcrypto
E: Unable to locate package libnetsnmp-devel
E: Unable to locate package DBUS
E: Unable to locate package CUPS
E: Unable to locate package libjpeg
E: Unable to locate package sane-devel
E: Unable to locate package cups-image


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--
:-)~MIKE~(-:

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--
:-)~MIKE~(-:
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