Question about HP Officejet Pro L7780 All-In-One InkJet Printer

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Blank lines on a page of printing,about every inch or so. I aligned printerheads,cleaned printerheads,calibrated printer heads and it is still happening. The black/yellow printer head was replaced about 2 weeks ago. Did not have a problem until today.

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From what your saying you need to clean the optics, meaning the copy glass,including the little piece of glass along left edge

Posted on May 09, 2009

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Posted on Jan 02, 2017

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1 Answer

Printing blank pages


Inkjet printers need to be used frequently to prevent ink drying out and blocking the print head nozzles.
If the print head cleaning maintenance routine does not clear the blockages, then print head needs replacing, but it may be expensive.
It may be more cost effective to buy a later model and better printer than replace the print head.

Mar 11, 2013 | Canon PIXMA Pro9000 InkJet Photo Printer

1 Answer

I need to calibrate my hp deskjet 3845 but when I click the button to calibrate it says it's lost communication with the device


Hello

Calibration is one of the functions performed from the Printer Assistant icon on the desktop. If the Printer Assistant icon on the desktop has been deleted from the system, the same tasks can also be accomplished from the Printer Toolbox . The Printer Toolbox can be accessed through the Printer Folder or by right-clicking the Printer Icon on the Taskbar

Please follow these steps to calibrate your printer

Double-click the Printer Assistant icon on the desktop. The Printer Assistant menu will appear with a list of options

Select the Tools and Updates option or the Utilities option (depending on your driver version).

Printer Maintenance menu will appear.

Select the Calibrate Printer tab from the Printer Maintenance options

Click the Calibrate tab. The printer will print the first calibration page.

In the Cartridge alignment page, please inspect the straight colored lines in Sections A, B, C and D . Choose the straightest lines in each section to indicate the best cartridge alignment.

In the Page alignment area, please verify Section E . Then, select the bar and the arrow closest to the edge of the page without being cut off, to indicate the best page alignment.

In the Calibrate Device window, enter the selected alignment values in the Pen Alignment and in the Page Alignment fields and click the Continue tab

The second calibration page will be printed now. The page will contain two patterns: a square and a cross . The lines on the patterns should be horizontally and vertically aligned . Click the Done tab if the lines are correct or the Calibrate tab to repeat the calibration process

The first calibration page contains five sets of alignment patterns. The calibration will cover two areas of alignment. The Cartridge alignment is designed to obtain the best print quality and the Page alignment is designed to ensure that the print is aligned correctly on the page.



If the Printer Assistant and its files have been deleted from the system, the maintenance features in the Tools and Updates section of the Printer Assistant are also available in the Printer Toolbox .
Open the Printer Toolbox and perform the services by following the instructions below:

Right-click the Printer Icon on the Taskbar .

Click Open the Deskjet Toolbox option.

Select the Printing Service tab in the Printer Toolbox .

Choose the Calibrate the printer option.

NOTE:HP recommends to use HP plain paper when performing the cartridges calibration process.

NOTE:These printers could work with one or two print cartridges. HP recommends to perform the cartridge calibration process with the two cartridges installed in order to get the best print quality. Anyway, the printer can also be calibrated with one cartridge installed if the customer decides to work in that way.

Jan 16, 2011 | HP Deskjet 3845 InkJet Printer

1 Answer

New ink cartridges installed and sometimes prints with missing horizontal areas(blank lines about 1/8 inch thick 20 plus randome down the page. The next time printing may be fine. Color is washed out...


Replace the print heads for the coloured inks you replaced, run the align printer head diagnotic from the printer menu. This should correct the print problem.

May 21, 2010 | Kodak EASYSHARE 5100 All-In-One Printer

1 Answer

I changed the black ink cartridge and the printer


Calibrate your new blank ink cartridge, have some nozzle check, cleaning check, and printer alignment. This are procedure that new ink cartridge will have to calibrate before you use. Epson printer are very sensitive when capable of changing ink cartridge. Unlink HP directly work without any print test because the cartridge head and ink join together, Epson with ink cartridge and the head separate.
Have some test on it at Printer Maintenance.
I'm sure 100% works on it.
Good luck!

Sep 23, 2009 | Office Equipment & Supplies

1 Answer

Canon i965 prints blank pages


Yes those printheads do go bad, they burn out just like a light bulb. If you emptied cartridges then the purge/cleaning assembly is working properly, and the only other option is the expensive printhead.

Aug 20, 2009 | Office Equipment & Supplies

2 Answers

HP 2210, screen says to press enter to aling cartridges


Once you replace a cartridge on a 2210 ya page prints and you must put that page on the scanner window and then press enter. Your computer will go through a calibration to align the print head. once this is done you can throw away the paper and printing will be normal

May 27, 2009 | HP PSC 2210 All-In-One InkJet Printer

1 Answer

Printing problem


You will need to clean cartridges and printer head with cotton swab and rubbing alcohol. Some printers have a self-cleaning diagnostic setting on them.
After thourough cleaning, print test page and use alignment if necessary.

May 15, 2009 | HP LaserJet III Printer

1 Answer

HP L7680 Printer Head Problem


Normal 0 false false false MicrosoftInternetExplorer4 st1\:*{behavior:url(#ieooui) } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Step two: Increase the print quality mode
If reprinting did not help, try increasing the print quality mode.
In the application you are printing from, click File, and then click Print. Make sure the printer is selected, and then click Properties.
Select the Paper/Quality tab. In the Print Quality area, choose the next higher quality setting. If the current setting is Draft, choose Normal. If the current setting is Normal, choose Best.
Step three: Print in grayscale (black area streaking only)
If the streaks are in a black area of a black and white printout, change to grayscale printing.
NOTE:- This step does not apply to color printouts.
In the application you are printing from, click File, and then click Print.
Make sure the printer is selected and click Properties.
Click the Color tab, and select Print Grayscale and High Quality.
Step four: Clean the printheads
If the print quality is still bad, clean the printheads.
Make sure the printer is loaded with unused white paper.
Open HP Solution Center.
Click Settings, Print Settings, and then select Printer Toolbox.
Click the Service Tab.
Click Clean Printhead, and then click Clean.
Step five: Align the printheads
If the print quality is still bad, align the printheads.
Make sure the printer is loaded with unused white paper.
Open the printer Toolbox, and select the Printer Services tab.
Click Align Printheads. The Align Printheads window opens. Click Align.
The printer prints an alignment page. The lines in the patterns should appear to be straight. Click OK when the page finishes printing.
Step six: Calibrate the linefeed
If the print quality is still bad, calibrate the linefeed:
Make sure the printer is loaded with unused white paper.
Open the printer Toolbox and select the Printer Services tab.
Click Calibrate Advanced Linefeed. The Advanced Linefeed Calibration window opens. Click OK .
Step seven: Replace one or both printheads
If the print quality is still bad after performing all the above steps, one or both of the printheads will have to be replaced. Print a PQ Diagnostic page to see which printhead should be replaced.
Make sure the printer is loaded with unused white paper.
Press the Setup button.
Press 1 and * simultaneously.
Look at the color blocks labeled Test Pattern 2. Some or all of them could show white horizontal streaks. If none of the blocks are streaked, the printheads are okay.
If the Black block has lines – replace the KY printhead.
If the Cyan block has lines – replace the MC Printhead.
If the Magenta block has lines – replace the MC Printhead.
If the Red block has lines – replace the KY printhead.
If the Green block has lines – replace the KY printhead.

Nov 08, 2008 | HP Officejet 5610 All-In-One InkJet...

2 Answers

White lines in print


Does the printer have replaceable printing heads, or are they integral to the ink cartridge. If so they may need replacing or calibration. Another issue may be electronic contacts, check inside the printer and on the cartridges for any dirt or debris on the (usually copper colour) contacts on either end.

Also, if possible try the printer on an alternate computer to ensure it is not a problem with your software.

Kind regards, ACD

Jun 10, 2008 | Office Equipment & Supplies

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