HP DeskJet 940

How to Identify and Fix Common Problems ?

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Make sure paper is loaded in the input tray. Open the HP Smart app, and then click the printer image. Click Print Quality Tools, and then select Align or Align Printheads. If prompted by the software or printer control panel to scan the Alignment Page, follow the instructions on the page to complete the alignment.
Alignment errors are the count of the number of frames received that do not end with an even number of octets and have a bad Cyclic Redundancy Check (CRC). This could indicate a cable problem or a faulty transmitter on the network equipment connected at the other end.
Print head alignment corrects the installation positions of the print head and improves deviated colors and lines. This machine supports two head alignment methods: automatic head alignment and manual head alignment. Normally, the machine is set for automatic head alignment.
In the Devices and Printers window, select your printer and click on Printing Preferences. Click on Maintenance in the window that opens. Click on Print Head Alignment to launch the dialogue box. Follow the instructions to complete the alignment.
If your printouts become grainy or blurry, you notice misalignment of vertical lines, or you see dark or light horizontal bands, you may need to align the print head. You can align the print head automatically from the control panel or your computer, or align it manually from the control panel.
1. : the act of aligning or state of being aligned. especially : the proper positioning or state of adjustment of parts (as of a mechanical or electronic device) in relation to each other.
Wrong Printer Driver

When your output looks slanted, not because it`s skewed on the paper but because the material on the page appears falsely italicized or otherwise distorted, you may be using the wrong driver software for the combination of your computer hardware, operating system and printer.

This is most often caused by using paper that is damp, is of poor quality, or not designed for this machine (ie: Inkjet paper) It can also be caused by the machine not being placed on a solid, level surface, poor calibration, or uneven distribution from a low toner cartridge.
Dust, paper fiber, and other debris might accumulate on the pick rollers and cause paper feed issues. To help prevent paper feed issues, clean the rollers inside the printer and in the duplexer (if equipped). If the other steps in this document fail to resolve the issue, then reset the printer.
The print head alignment sheet will be printed and the print head position will be adjusted automatically. Do not perform any other operations until the printer completes the printing of the print head alignment sheet. This takes about 2 to 3 minutes.
Braces are the most common treatment option used to treat severe misalignment of the teeth and jaws. This dental device consists of metal bands that are usually placed on the back teeth. Small metal squares called brackets are adhered to each tooth and a wire is placed in the bands and run through the brackets.
Measuring different sections along the horizontal and vertical planes will help determine shaft misalignment and whether the misalignment is angular, parallel, or often both. Phase analysis offers the most precises diagnose of misalignment.
In the Devices and Printers window, select your printer and click on Printing Preferences. Click on Maintenance in the window that opens. Click on Print Head Alignment to launch the dialogue box. Follow the instructions to complete the alignment.
Check the Margin settings under File>Page Setup to make sure that the right margin is OK. Also check the paragraph format to make sure that you do not have a negative right indent which could be causing the text to extend into an area that is unprintable by your printer.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

HP DESKJET 1280 ERROR
ANSWER : Help please! Printer power and paper lights continue to flash,- even after : encoder strip cleaned, carriage rod lubed, carriage is not stuck, rollers cleaned, no paper jambed . I know this is a variation on an existing theme, but could anyone help solve the issue.Many thanksKen

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HP DeskJet 940

HP deskjet 460 Waste ink tank full
ANSWER : I worked fixing printers for 5 years for Verizon and some of the older printers were notorious for the waste receptacle filling and overflowing with ink. My solution was good old warm water. Remove the waste container and scoop out as much as you can with a small screwdriver, wiping the discard on a paper towel, then just run warm water from the faucet into the container till all the residue is removed. This is just water soluble ink folks, if you want to test it, scoop out a glob and dissolve it in warm water, its easy as pie. I never once bought a new ink discard reservoir. I just cleaned out my mobile 460 printer reservoir by the same method. There are no electrical connections its just all plastic.

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HP DeskJet 940

hp deskjet 3420- system error
ANSWER : Hi I am having problem in printing from java file , I followed all your steps but C:\\WINDOWS\\system32\\spool\\drivers\\w32x86\\3 after this I am getting no files in this folder ,please help me as I am struggling to get print from java since a week

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HP DeskJet 940

HP DeskJet 1220C Prints only Pink & Black
ANSWER : hi everyone. i have an hp ink advantage 5525 all-in-one. changed all cartridges as they were empty and when i tried to print i got blank pages. i gave a print order a couple times to find out what was going on and found out that yellow and magenta inks worked but not cyan and black. removed cartridges, clean and all many times and nothing happened. then i tried this youtu.be/f57jOGj-G5s and the print quality of magenta and yellow improved significantly but still no black or cyan at all. i can’t do the running water thing because the print head is not detachable. any suggestions?

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HP DeskJet 940

HP Deskjet 5150
ANSWER : Ok I have the same problem, Kemal. HOW DO YOU DISASSEMBLE the printer carriage and the Ink Service Station from that??

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HP DeskJet 940

HP DeskJet 722C Paper Feed Problem
ANSWER : Detach the force string from the holding nothing back one and expel all paper from it.

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HP DeskJet 940

HP DeskJet 950C Leaking Ink
ANSWER : Thanks for the “loose, white rectangular piece” comment in my 990cse. I found this same white piece of rubber today jamming up the cleaning station carriage assembly and was wondering where it came from!

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HP DeskJet 940

HP Deskjet 1120C
ANSWER : I have just experienced a similar problem after cleaning out the ink build up without removing the outer case. The two lights are flashing and the ink cartridges end up on the far left after jumping back and fore a few times.

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HP DeskJet 940