Question about HP Deskjet 840 InkJet Printer

2 Answers

How to elliminate streaks while printing

I have been using HP840c printer for pretty long time. Recently I found on my print outs at two places i get horizontal white streaks which mars the nice printout. It happens in colour as well as black prints.I did clean the steel rollers and internals for dirt /dust but still they appear. Could someone tell me the solution for this?

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Hi shubhada,

It seems scaling marks on encoder strip/round encoder may not be readable or damage at particular place, that may result in such problem

Posted on Mar 21, 2008

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  • 45 Answers

Hi shubhada,

It seems to me that your print driver has become corrupt. You will need to reinstall it to restore it to it's previous functional state.
Since you need to reinstall the driver, I suggest;

  1. downloading the latest driver for the HP 840c at http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?product=59868&lc=en&cc=us&dlc=en&submit.y=0&submit.x=0&lang=en&cc=us (you'll have to select your operating system then download the HP Deskjet Full Feature software/driver file)
  2. Uninstall your printer by deleting it in Printer and Faxes
  3. Reinstall your printer using the new driver
Hope this information helps you in solving the printer problem
Kind regards and thanks for using the FixYa service

Posted on Mar 17, 2008

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Posted on Jan 02, 2017

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1 Answer

Horizontal White Lines


My 1st thought would be clean heads also. If ink is tanks only not heads take ink out and try cleaning heads with liquid cleaner available @ Staples or similar stores. Another fix might be to use alignment utility for your printers software; however before you do any of this if ink is old or nearly empty replace ink.

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Streaks or lines


Vertical streaks:
Check,which color/s streaks are appearing on print out,remove that cartridge/s check on drum surface for streaks.. if found replace that cartridge/s..check.
Horizontal streaks:
This problem appears when the cartridge/s image drum not rotating properly. Resit the cartridges properly, print 20nos of blank pages, then check.... replace the cartridge..

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White Lines through pictures and text


Try updating the firmware of your printer. Just go to http://bit.ly/ghfW8H to download the firmware update. After the update, perform the Deep Clean Printhead maintenance again.

If it doesn't help, replace the cyan cartridge.

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Lexmark S605 printing blue streaks


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This started out as error 5200. Now, my Canon MX340 printer isn't connecting to the computer. The computer acts like the printer hasn't been installed. I tried to remove the printhead and restart...


Issue: How do I align the print head?
Solution: Perform a Print Head Alignment (Windows)- MX340

Aligning the Print Head Position Print head alignment corrects the installation positions of the print head and improves deviated colors and lines. The procedure for performing print head alignment is as follows:

alignike.gif Print Head Alignment

  1. Open the printer driver setup window
    • In Windows Vista, select the Start menu -> Control Panel -> Hardware and Sound -> Printers.

    • In Windows XP, select the Start menu -> Control Panel -> Printers and Other Hardware -> Printers and Faxes.

    • In Windows 2000, select the Start menu -> Settings -> Printers.


  2. Right-click your model name icon, and then select Printing Preferences from the displayed menu.

    The printer driver setup window appears.

  3. Click Custom Settings on the Maintenance tab.
    The Custom Settings dialog box opens.

  4. Check the Align heads manually check box.

  5. Click Send, and click OK when the confirmation message appears.

  6. Click Print Head Alignment alignike.gif on the Maintenance tab The Start Print Head Alignment dialog box opens.



  7. Load three sheets of A4 size or Letter size plain paper into the rear tray (3).

    t_10410ce_mx34014.jpg

  8. Execute head alignment Make sure that the machine is on and click Align Print Head.
    Follow the instruction in the message.

  9. Check the printed pattern
    Enter the numbers of the patterns with the least amount of streaks in the associated boxes.
    Clicking the patterns with the least amount of streaks in the preview window, will automatically set their numbers in the associated boxes.

    print_pattern1.gif

  10. When you have entered all the necessary values, click OK.

    Note:
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.

      vertical_ab.gif
      (A) Less noticeable vertical white streaks
      (B) More noticeable vertical white streaks

    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal white streaks.

      horizontal_ab_black.gif
      (A) Less noticeable horizontal white streaks
      (B) More noticeable horizontal white streaks

  11. Confirm the displayed message and click OK.
    The second pattern is printed.
    Important: Do not open the Scanning Unit (Cover) while printing is in progress.

  12. Check the printed pattern
    Enter the numbers of the patterns with the least amount of streaks in the associated boxes.

    Clicking the patterns with the least amount of streaks in the preview window, will automatically set their numbers in the associated boxes.

    print_pattern2.gif

  13. When you have entered all the necessary values, click OK.

    Note:
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable vertical white streaks.

      vertical_ab.gif
      (A) Less noticeable vertical white streaks
      (B) More noticeable vertical white streaks


  14. Confirm the displayed message and click OK.
    The third pattern is printed.
    Important: Do not open the Scanning Unit (Cover) while printing is in progress.

  15. Check the printed pattern
    Enter the numbers of the patterns with the least noticeable horizontal stripes in the associated boxes.

    Clicking the patterns with the least noticeable horizontal stripes in the preview window, will automatically set their numbers in the associated boxes.

    print_pattern3.gif

  16. When you have entered all the necessary values, click OK.

    Note:
    • If it is difficult to pick the best pattern, pick the setting that produces the least noticeable horizontal white stripes.

      horizontal_ab_cyan.gif
      (A) Less noticeable horizontal white stripes
      (B) More noticeable horizontal white stripes
Note: To print and check the current setting, open the Start Print Head Alignment dialog box, and click Print Alignment Value.

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1 Answer

My canon pixma 480 has thin horizontal lines. tried cleaning and deep cleaning where is the head alignment tool?


The instructions as copied from the Pixma 480 "onscreen manual." (Only the text -- not the images -- could be pasted into the solution. Hope you can follow the text.) Steve G.

Prepare 2 sheets of A4 or Letter-sized plain paper

1. Make sure that the power is turned on, and load 2 sheets of A4 or Letter-sized plain paper in the Rear Tray.

2. Open the Paper Output Tray gently, and open the Output Tray Extension.

3. Print the print head alignment pattern.
- Press the Menu button.
- Select Maintenance, and press the OK button.
- Select Print head alignment, and press the OK button.
Note: To print the current head position adjustment values, select Head alignment print in the Maintenance menu and press the OK button. See Selecting Menus on the Top Menu Screen.)
- Select Yes, and press the OK button to print alignment sheet.
- Check the pattern is printed correctly, select Yes and press OK button.
- Confirm the displayed message and press the OK button.

The Print head alignment screen appears.

4. Adjust the print head position.
- Check the printed patterns, and use the (Left) or (Right) button to select the number of the pattern that has the least noticeable streaks for column A.
Note: If it is difficult to select the best pattern, select the pattern that has the least noticeable white streaks.
(A) Less noticeable vertical white streaks
(B) Noticeable vertical white streaks
(C) Less noticeable horizontal white streaks
(D) Noticeable horizontal white streaks
- Repeat the same procedure to input the pattern number for each column from B to L, then press the OK button.
- Select Yes to continue printing, and press the OK button.
- The second page of print head alignment sheet will be printed.
- Confirm the message for print head alignment, and press the OK button.
- Check the printed patterns and use the (Left) or (Right) button to input the number of the pattern that has the least noticeable horizontal streaks for column M.
- Repeat the same procedure to input the pattern number for each column from N to R, and press the OK button.

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1 Answer

My pictures are getting yellow streaks as they print out


If you are getting "yellow streaks", run the Kodak "print-head-cleaning" software, to see if that helps.

Be sure to compare the cost of "repairing" the printer to that of buying a new printer (that would use the same ink-cartridges).

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2 Answers

My printer is leaving horizontal streaks across


When I had the same problem, I found out, that Epson did not like Generic Ink. As soon as I replaced it with Genuine Epson Ink, it was fine.

Make sure you do Maintenance, Nozzle Check and Head Cleaning. You might be clogged?

Good Luck.

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Printing


if your problem is printer setup page in go
and select to the b & w print and ink setting
are dark print set and give your print page
problem is also

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Re-setting the printer after a problem


go to start settings - printers and faxes and delete any printing jobs in printer panel
turn off the printer, and when all jobs are gone turn it on

That's it

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