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The HP Community is where owners of HP products, like you, volunteer to help each other find solutions.
We would like to share some of the most frequently asked questions about Instant Ink. Check out this link: HP INSTANT INK, HP+ PLANS: INK AND TONER. .
HP Recommended

I own an HP Deskjet 4120e. I have a subscription to HP ink services so I am using official ink.


All my pages come out extremely faded. Black is worst (it barely shows at all), but colour is also not great. 

I have tried all the various diagnostic steps in the HP app. To make matters worse there is an alignment issue with the printer. When performing the alignment fix the page gets printed so faded that the scanner can't detect the image to perform the realignment. I have tried doing a full reset of the printer etc. 


I am at the point of contacting HP support, but for some reason my perfectly valid serial number is not recognized. I get an error when typing it in online. The error states: "please enter a valid serial number". It is 100% valid, copied directly from the app. 


I am at my wits end trying to resolve this issue so I wanted to turn to the forum for any advice. Does anyone have a telephone number for HP so I can actually talk to someone about this? 


Thanks so much!


HP Recommended



Welcome to the HP Community Forum.


HP Support case submission uses the serial number to verify Warranty when a device is submitted for Warranty repair.


Instead, consider contacting Instant Ink Support for help.

Printer warranty is not used or necessary to get help for issues related to your Instant Ink subscription.



If you have enabled HP+ Service on your printer,

You also have the option to Contact HP+ Service.

Contact information for HP+ has been included at the end of this message.



Please contact Instant Ink Support during business days and hours available in your region.


You may choose to wait here in the Community for an agent to find and respond to your question.

When necessary, Agents can access private information.

Waiting is not always faster – our Community is not  HP Instant Ink Support   – Waiting generally works.


Things that are Instant Ink

Instant Ink >> Details / How-to / Articles / >>>> Contact Information <<<<



Active subscription?

>>>>  Contact Instant Ink Support from within your Instant Ink Account  <<<<




Instant Ink Support >> HP Instant Ink Support   


Instant Ink - Chat


Instant Ink Support Website – Read

HP Instant Ink - Support, Enroll, FAQ, Terms of Service Contract

Not your home site?  Click the Flag to change to your region.

Scroll down – When available in your region, look for contact number on the webpage.




Examples of the Terms of Service Contract for various regions

NOTE:  Terms of Service Document includes phone contact information


Instant Ink - Terms of Service - USA

Instant Ink – Terms of Service - UK


Instant Ink - Terms of Service - Ireland




Lots of  information – Instant Ink


Start here:  Get HP Instant Ink Support


  • Your ink  - including section Where is my ink or toner?
  • Your HP Instant Ink account
  • Your printer connections  


Scroll to bottom of web page >>  Section – Details -- Documents

 HP Instant Ink Help - Enrolling in HP Instant Ink


 HP Instant Ink Help – Solve Problems

 HP Instant Ink Help - Manage your account

 HP Instant Ink Help - Manage your ink or toner

  Recycle your cartridges

  HP Instant Ink Help – Review your bill



How does it work?   Details / Plans / TKB / Cancel Information


Check through the Website  FAQ


Additional Information:


 HP Instant Ink - Cancel Your HP Instant Ink Service

 HP Instant Ink - Enrolling in HP Instant Ink

 HP Instant Ink - Page Count Is Not the Same as Actual Pages Printed


 TKB article contributed by HP JessikaV

 Fixing Instant Ink cartridge errors


TKB Article contributed by HP JillSa

Cancelled Instant Ink service and now I can't print  


 INSTANT INK PLATINUM The All-Inclusive Printer Subscription from HP  

Scroll down to the FAQ – READ Everything

What is an HP Instant Ink Platinum subscription?

HP Instant Ink Platinum is a printer subscription program with an all-inclusive monthly payment. This payment includes the printer, 24/7 hardware support, next-business-day replacement warranty, and CarbonNeutral usage certification. The subscription also includes a new printer every two years.




HP Printer Home Page - References and Resources – Learn about your Printer  - Solve Problems

“Things that are your printer”

When the website support page opens, Select (as available) a Category > Topic Subtopic

NOTE:  Content depends on device type and Operating System

Categories:  Alerts, Access to the Print and Scan Doctor (Windows), Warranty Check, HP Drivers / Software / Firmware Updates, How-to Videos, Bulletins/Notices, Lots of How-to Documents, Troubleshooting, Manuals > User Guides, Product Information (Specifications), Supplies, and more


HP DeskJet 4120e All-in-One Printer 


IF you have enabled HP+ service,


Contact HP+ Support for help.


Printer and  HP+ service

Contact HP+ Support


>>> Open your HP+ Printer Homepage > Exclusive HP+ Help > Click Contact Us link in the Orange box


Note that HP+ assistance is only available for registered HP+ printers.


HP+ > Benefits, Requirements, Your Responsibilities

READ about HP+ here:

HP+ Printing – Website / Information / FAQ

Excerpted – Section Disclaimers

Dual-band Wi-Fi™: Wireless operations are compatible with 2.4 GHz and 5.0 GHz operations only. Learn more at HP Printers - Mobile Printing Solutions Compatible with HP Printers . Wi-Fi is a registered mark of Wi-Fi Alliance®. Supports both 5.0 GHz and 2.4 GHz using up to 112 non-overlapping channels v. only 3 non-overlapping channels for 2.4 GHz only. Supports 5.0 GHz band (up to 150 mbps) v. 2.4 GHz band (up to 72.2 mbps). Internet access must be purchased separately.


HP+ Benefits include

About HP Smart Advance for HP+ printers


 HP+ Printers – HP Store / Information

 HP+ Printers



Thank you for participating in the HP Community.

Our Community is comprised of volunteers - people who own and use HP devices.

Click Yes to say Thank You

Question / Concern Answered, Click "Accept as Solution"



† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the <a href="https://www8.hp.com/us/en/terms-of-use.html" class="udrlinesmall">Terms of Use</a> and <a href="/t5/custom/page/page-id/hp.rulespage" class="udrlinesmall"> Rules of Participation</a>.