Photosmart C7250 All-in-one

Question

AFTER CLEANING THE PRINTHEADS, AND PRINTING A TEST-PAGE TO EVALUATE THE COLORS AND ALIGNMENTE, ALL COLORS ARE OK BUT THE VERY DARK BLACK BAND (THE TWO GRAY ONES ARE OK).  ANY SUGGESTION OR RECOMMENDATION WILL BE MORE THAN WELCOMED.
jORGE

Answer 1

Hello @Joarlujo,
Welcome to the HP Support Forums!
I would like to assist you today with resolving the black print quality issue that you're experiencing when printing from your Windows 7 computer to your HP Photosmart C7250 All-in-One Printer. Thank you for including the troubleshooting steps you have already attempted prior to reaching out for support. At this time it does sound like you have a defective black ink cartridge, or your HP Photosmart is experiencing a Printhead issue. The Printhead is the part that the cartridges fit into. It controls 'reading' the cartridges and putting ink on the page. If the Printhead is defective than you may experience cartridge detection, or print quality issues. The Printhead is a non-replaceable part within this specific model. Therefore, should the Printhead be defective a whole unit replacement would be needed. In saying that, there are troubleshooting steps that we can attempt to resolve this quality issue. Can I please have you follow the steps below.
Solution one: Use genuine HP cartridges:
HP recommends that you use genuine HP ink cartridges. HP cannot guarantee the quality or reliability of non-HP ink cartridges or refilled HP ink cartridges. If you do not use genuine HP ink cartridges, the steps provided might not resolve print quality issues.
Solution two: Check the ink levels, and then replace the depleted cartridge:
1. On the printer control panel, press the Setup button.
2. Press the Down Arrow button until Tools is selected.
3. Press OK.
4. When the Display Ink Gauge option displays, press OK. The ink gauge displays.
5. Please replace any low or depleted cartridges.
Solution three: Print a self-test report:
Load plain white paper into the input tray.
Press Setup.
Press the Down Arrow () to highlight Print Report.
Press OK.
Press the Down Arrow () to highlight Self-Test Report.
Press OK.
If the test page printed clearly, check the settings and media you are using, and then try to print again.
If the report or printout shows streaks, lines, or missing colors, continue to the next solution.
Solution four: Clean the printhead:
Load plain white paper in the input tray.
Press Setup, press the Down Arrow (), press Tools, and then press OK.
Press the Down Arrow () to select Clean Printhead, and then press OK. A test page prints.
If these steps resolved the issue, you do not need to continue troubleshooting.
If the issue persists, continue to the next solution.
Solution five: Align the printer:
Load plain white paper in the input tray.
Press Setup, press the Down Arrow (), press Tools, and then press OK.
Press the Down Arrow () to select Align Printer, and then press OK. A test page prints.
If these steps resolved the issue, you do not need to continue troubleshooting.
If the issue persists, continue to the next solution.
Solution six: Calibrate the color:
On the Windows taskbar, click the Start icon (), click All Programs, click HP, click the folder for your HP Photosmart, and then click the icon for your HP printer (). The HP software window opens.
Click Settings, click Print Settings, and then click Printer Toolbox.
On the Device Services tab, click Calibrate Color, and then follow the on-screen instructions. The procedure takes about two minutes and requires two sheets of paper.
Try to print again.
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Please respond to this post with the result of your troubleshooting. Good luck!
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