OfficeJet 4620: black print

All of a sudden my 4620 will not print in black. I have the latest drivers and it prints fine in other colors. Much ink!

All the answers?

In fact, I found the true answer to a techie Officemax. Remove the print cartridges and use a cotton swab soaked in isopropyl alcohol to clean the screens below the cartridge. The ink becomes blocked the screen if the printer is idle for some time.

quick and easy and effective!

Tags: HP Printers

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    (1) ok. lets start. !!! FIRST UNPLUG THE PRINTER RIGHT NOW, IF YOU DO NOT ACCIDENTALLY DIE BY ELECTROCUTION!  I forgot and when I started unscrewing the first 6 screws, kept chime jump and im like * beep *? I was impressed by the security measures hp took as model engineering.

    (2) the printer is now disconnected and then go to your corner your work surface and place the printer, so there is a wall or a barrier on the left, and also, a wall or a fence behind it. This just in front of her as if you were about to use it.

    (3) now, what you have to do, is to open the printer as you will change the ink and on the right side, there is a plastic guide that prevents opening all the way to the top. Look on the side and you'll notice that he could jump off with fingers. pop off and open it completely open, so you can get to the screws of the cover you would have prevented access to.

    (4) press the scanner part and the upper part against the back wall.

    (5) all the screws you will be remove are the size T9H torx screws. There are ten total. There are 2 black screws in the top of the forehead and then 4 black screws in the top of the back. Remove them and put them on your paper plate.

    (6) following is 1 screw silver short located under the Control Panel, use your finger and feel under the * button. Unscrew, place it on the paper plate.

    (7) depending on whether you want to remove the face/Control Panel to get in the last 3 screws so locate the illustrations on the top of the printer, there are 2 on the lower left and 5 at the bottom right (1 and 2 on the left explain removals of paper jam and 1-5 on the right then explain change in ink cartridges). then about half an inch South of the illustration of the number 5 on the lip, is a plastic stand. six inches to the left is an another then 6 inches to the left, under the number of the illustration 2 (remove the paper jam) is a third support. Unscrew using your nails. Flip it up just like the hood of the car, and eten on the main top of the printer, keep the flat wire which is connected to the frame of the control panel (if the flat wire jumped because you got too loud, then simply insert it in when you go back).

    (8) then unscrew the 3 long silver screws that are located under the Panel you just popped off the coast. There is 1 on the left and 2 on the side rightish. mix 'em on the paper plate.

    (9) now that all the screws are removed, take the Panel front and partially pop it back together.

    (10) then take all over (the part with the small illustrations and lift like a hood of car, ONLY THIS TIME OPEN IT LEFT and he balanced on the edge of the printer, to lean over towards the wall or an obstacle on your left.) MAKE SURE NOT TO PULL ON THE STRIP OF COLORFUL SON FRUITS LEFT AND ALSO THE FLAT BLACK WIRE CONNECTING PART SCANNING FOR THE MAIN OF THE PRINTER PART.

    (11) then take the pliers to tapered spout and remove the 2 silver tension springs located behind the printer cartridges. Pay attention to where they were attached so you remember where they go during the Assembly. take a picture with your phone if you have to, or simply re - understand it like I did. mix 'em on the paper plate.

    (12) then disconnect the 2 large flat wire and 1 small flatwire attached to the back of the ink cart. take a picture or can remember like I did. I guess bad things can happen if you reverse the on re-Assembly. Pick up the phone and take a picture of quik to be sure.

    (13) now remove the cart ink, cartridges and all, by lifting the front first.  Be careful of the transparent tape little there that moves the carriage from left to right and vice versa. you don't want to damage this little guy. now take the transport to your paper plate. not some ink or accidentally get it on your fingers without knowing or will make a mess.

    (14) remove the ink cartridges and put them on the paper plate, side ink to avoid a mess, these things sometimes drip. put the plate side. its time to clean the print heads.

    (15) then go to the sink, to the distribution of empty ink and turn on the hot water and then let the transport of empty ink sitting there with the water mainly through the clogged color screen (inspect and make you is not a small rubber seal surrounding the small screen, if there is do not waste it. I didn't look too closely and I don't think that hp has them but I have a few other printers). It will stain the sink but water ink he comes out to be sure. notice there is also a small circuit attached to it. don't bang it upward but getting wet does not matter.

    (16) continue to do this until the water is clear.

    (17) then use your finger and rub the screen gently with your finger and then rinse it, taking ink until the water is clear. This continues until there is no more ink and screens are clean. do it for all the colors just for good measures. the color of problem that would not print, you'll notice takes longer to clean than the other colors.

    (18) now look on the lower side of the transport. these strange looking things are the leaders. Rinse in hot water and dry them with paper towels. then flip it over and the breath on the side of the screen again. also between the screenside and heads (on the side of the transport) is an opening which is also probably gunked up. It blows with water too. Then, turn it over and wipe the head again. Repeat this step until no fades or until you are sick and tired.

    (19) shake, then use paper towels to dry the entire unit. Make sure that the device is dry.  especially inside the female plugs. blow inside or out dry hair and dry gently. do not stand there and melt the but with the blow dryer. but the sooner it dries less your ink cartridges, sitting on the paper plate will dry out. the custom of the ink dry quickly just do not take a NAP or go on a date until you're back with part of the ink.

    (20) now you have finished cleaning the heads and probably don't need to do it again for the length of time, it was because you bought the printer. and just as a roadtrip you used a map to navigate, you will use these instructions in reverse for reassembly. but keep in mind when re - insert the 3 flatwires that you disconnected from the back of the ink cart, make sure you that have small metal contact on the flatwires points (side male) inserted so they affect small metal contact points on the caps of transport (feminine) side. ALSO BE VERY CAREFUL NOT TO DAMAGE BLACK FLATWIRE CONNECTING THE SCANNER PART PART HAND PRINTER. THERE IS A SMALL GROOVE IN THE PLASTIC WHERE IT CAN SIT TO GUARANTEE NO CRIMPAGE. USE IT. also make sure that the 2 hinges to the scanner portion/cover are placed correctly before the fixing of the top with the 6 black screws.

    now raise the printer and reinstall the ink cartridges. then plug in the appliance and turn it on.  If you get notifications on the control panel telling the custom of transport move, then open the trunk and remove the ink cartridges, hustles and ensure that transport is installed and that the tensioner springs are in place correctly. Repeat the operation if necessary until notifications go away or just do a test print and do not take into account the notification if you messed with it a few times already. That's what happened to me and the notification went his own. Once its online, open the hp utility and press the button "clean the heads. do 2 x in a row and you will be in style, with colors extremely rich and "BOLD" and Yes, printed black raven.

    p. s.

    You can always take your aggression out with tree limb loppers or Tin shears like I did and cut the plastic Center keeps you to transport directly outside. Completely eliminates the disassembly and reassembly. Make sure you DO NOT CUT THE TRANSPARENT TAPE THAT MOVES BACK AND FORTH TRANSPORT. This way the next time it happens it takes you only 10 minutes before you are upward and printing.

    Enjoy!  -Porf

  • OfficeJet 4620 - will be not printed black - HELP!

    I have an Officejet 4620 and the printer doesn't print black ink.  Other colors print fine.  After spending $ 65, I've replaced the ink cartridges, and it would not print!

    I found the link to ""printer prints a blank Page or print no black or color ink for HP Officejet 4610, 4620, Deskjet Ink Advantage 4610 and 4620 e - all-in - One Printer Series " and followed all the instructions, TWICE, if not three times! "

    I also cleaned the printhead several times, two rounds each, and again, it will not be printed.  What to do is print the calibration reports that continue to eat my ink!   Printing reports colored pieces, but nothing in BLACK!

    This seems to be a very common problem with these printers because I have read several forums that describes the same thing, and HP does not seem a good solution or offer of difficulty or the problem.  I noticed most positions with this question end up making a private offline message.

    Before I wonder, the printer is no longer under warranty and I live in the United States.  PLEASE HELP ME!

    Hi @VetteGuy,

    Welcome to the HP Forums!

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  • HP Officejet 4620: HP Officejet 4620 - won't print black

    Just replaced the cartridges in our Officejet 4620. All the colors are working well except black. I can't even print a document, if the text is black. Any suggestions? New genuine cartridges have been used.

    I ended up finding support chat live just after the announcement. New printer on its way.

  • Re: HP officejet 4620 does no black ink print

    I'm having this same problem, but with an off-warranty B210a all-in-one printer. Can you help me with this also?

    @rrblint

    One thing worth is to soak the printhead as described below...

    (1) get a pan and put 1/2 "of very hot (not boiling) water in the bottom.
    (2) remove all ink cartridges, then remove the print head Assembly.
    (3) gently put the printhead nozzles down in water and soak for 5 minutes.
    (4) remove the print head and gently dry the electrical contacts.
    (5) replace the print head in the printer and then reinstall the ink cartridges.

    http://h30434.www3.HP.com/T5/other-printing-questions/Photosmart-premium-C309a-black-prints-out-green-on-photo-paper/m-p/449245/highlight/true#M2867

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