Color Scanning with blue tint all over

[Jayanta68]

My smart tank 720 printer behaves weird with color printing or scanning. If try to scan in color, blue tint all over the page. updated drivers, cleaned scanner bed, troubleshoot option everything done, nothing worked. Also, color printing delivers weird colors as compared to the original document. don't know what to do. Black and white scan and print is fine.

[VikramTheGreat]

Hi @Jayanta68,

Welcome to the HP Support Community.
 

Thank you for posting your query. I will be glad to help you.

I understand how frustrating it can be when your Smart Tank 720 suddenly starts casting everything in blue, while black-and-white works just fine. Let’s gently walk through the steps to help your colors come back to life.

Step-by-Step Fix

1. Clean and Align Printheads

1. Open the HP Smart app or go to your printer’s Embedded Web Server (EWS).
2. Under Tools or Maintenance, run Clean Printheads. Repeat if needed.
3. Next, choose Align Printheads. The printer will feed a sheet and scan it to calibrate ink distribution.
    

2. Calibrate Color Output

Color drift can happen over time. Use the HP app or EWS to locate Printer Maintenance → Color Calibration and follow its prompts to fine-tune color accuracy.
 

3. Check Ink Levels & Quality

• Confirm all color tanks (C, M, Y) are properly filled, especially the cyan tank, as low blue ink could cause overcompensation.
• Use only genuine HP ink. Other brands may cause drift or poor color rendition.
   

4. Clean Scanner Glass

• Gently wipe the glass and white reference bar with a lint-free cloth dampened with distilled water. Any residue may skew color scans.
   

5. Reinstall Drivers & Firmware

• Visit HP Smart Tank 720 series Software and Driver Downloads | HP® Support and manually download the latest firmware and full feature software.
• Install it, restart both the printer and PC, then retest color scans and prints.
   

6. Scan with Proper Settings

• In the scan app, ensure you're using Plain Paper and a scan resolution of 300 dpi.
• If color balance options are available, set them to Auto to let the printer handle adjustments.

HP Official Guide: HP Smart Tank 670, 720, 750 Printers - Color or black ink not printing, other print quality issues |...

I hope this helps.

Take care and have an amazing day!
 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

Regards,

VikramTheGreat

[Jayanta68]

You mentioned the following in point 2  

Calibrate color calibration.

Color drift can happen over time. Use the HP app or EWS to locate Printer Maintenance --> Color calibration  and follow its prompts to fine-tune color accuracy.

There is no such option available. Other basic steps mentioned is already tried many times.

Nothing worked. Yes, you are right possibly that it is color calibration issue. But no option available to calibrate. Let me know how to do it.  And my apologies that I missed this message & retorted harshly on the 2nd one. Sorry about that. 

[VikramTheGreat]

Hi @Jayanta68,

I appreciate your openness, no hard feelings at all. Let’s get back on track and tackle that color calibration for your Smart Tank 720.

Step 1: Find the Printer’s IP Address

• Press the Information button (i) on the printer control panel.
• Print the Network Configuration Page.
• Note the IP address listed.

Step 2: Access the Embedded Web Server

• On your computer, open a web browser.
• Type the IP address into the address bar (e.g., http://192.168.x.x).
• This opens the printer’s EWS interface.

Step 3: Run Color Calibration

• In EWS, go to Settings → Printer Maintenance → Color Calibration.
• Follow the prompts to start calibration. The printer will print a calibration sheet and adjust its internal color settings.

If You Don’t See Color Calibration

• Make sure the printer firmware is up to date: 
  • In EWS, go to Settings → Printer Update → Check for Updates.
• After updating, refresh the EWS page and check again under Maintenance.

I hope this helps.
 

Take care and have an amazing day!
 

Did we resolve the issue? If yes, please consider marking this post as "Accepted Solution" and click "Yes" to give us a helpful vote - your feedback keeps us going!

Regards,

VikramTheGreat

[Jayanta68]

Vishal,

                All these were already tried out. Color calibration is not available either in HP Smart or EWS. It seems it was there in HP print & scan doctor which you have withdrawn. The firmware is updated. Print Head cleaning etc was done, but that is not the issue. In fact, color printing is also messed up as I don't get the same colors as in the original documents but some weird color output but black & white print & scan thankfully works. I reached out to the community after trying out the basics which are available is public domain like google etc and chatgpts of the world also gives some good summary. Not sure what else other than calling an engineer I can do. If HP is having a separate tool for such calibration, pls let me know.

And again my sincere apologies for my inappropriate behaviour last time. Pls help me in resolving this. The printer is just approaching 3 years since purchase and I purchased it with the hope that I will be relieved of the cartridge related pain and get most of regular work covered (I never expected it to work photo printing but regular print, copy & scan in both color & B/W)

[VikramTheGreat]

Hi @Jayanta68,

Thank you for getting back and for confirming that you’ve already tried all the recommended steps.
 

I understand how frustrating this must be, especially after investing so much time in troubleshooting. At this point, it appears that all available software troubleshooting options have been exhausted. The issue will likely require a hands-on inspection by a technician to identify and resolve the root cause.
 

I would kindly recommend visiting the nearest HP Authorized Service Center, where trained technicians can physically check the device and provide the appropriate assistance. They will be best equipped to diagnose the issue further and advise on the next steps.

To contact an HP Autorized store, click here: HP® Service Center Locator - United States | HP® Support. (Choose the region accordingly)

Please feel free to contact us here anytime you need any further assistance.

Have a great day!
 

VikramTheGreat

HP Support