DesignJet 500/800 Series Ink Tubes Assembly C7770-60286

$ 224.99 $ 240.00

Ink tubes wear out.


Generally the ink in the tubes dries and air can not pressurize the tubes sucking ink from the cartridges to the print heads. Alternatively, The print heads nozzles dry up over time if they are not used.  The easiest fix is to check the print heads is to remove them, shake vigorously a few times and with a damp paper towel blot the nozzles on the bottom to remove any dry ink  Then press the print head nozzles onto a pile of paper towels to pull the Windex and disolved ink out.  Then put the print heads back into the machine and do a print head alignment to get ink through all the heads.  You might have to do this more than once to get all the nozzles working again. 


HP has used a s a rule of thumb to print at least once a week to keep the printheads in good working order.


If that fails, you should replace the Ink Tube Assembly

Included with the tube assembly is instructions to replace. Below is the youtube video demonstrating how to remove the covers and the ink tubes.




Removing the HP Designjet 500 Ink Tube Assembly.

The service manual states you need setup print heads to replace the Ink Tube Assembly.
The setup print heads are not needed if you follow these simple steps.

1. Turn on printer. When you hear the carriage move, unplug from the wall.
2. Open the window and locate the carriage assembly.
3. Release the latch and lift up the carriage cover.
4. Remove all the print heads.
5. Open the ink cartridge access cover.
6. Remove all the ink cartridges
7. Switch OFF the printer and remove the power cord.
8. Remove the top cover and window.

Top Cover:
a: Remove the following screws
(Type A) from the rear that attach the Top Cover to the Printer:
2 T-20 screws for the 24" model. 3 T-20 screws for the 42" model.
b:Raise Window and unclip at both ends.
c: Lift up complete assembly (Window and Top Cover) and remove from Printer.

Right Cover:
a: Remove 1 T-20 screw (Type F) from the back of the Right Hand Cover. Located
lower corner below the spindle.
b: Open the Ink Cartridge Door and remove 1 T-20 screw (Type F) from the back of the Right Hand Cover located above the spindle.
c: Keep the Ink Cartridge Door open and remove 1 T-20 screw (Type F) from the top of the Right Hand Cover.
d: Remove 1 T-20 screw (Type F) from the front of the Right Hand Cover.
e: Open the Window and remove 1 T-20 screw (Type F) from the side plate.
f: Remove the Right Hand Cover.

9. Loosen 1 T-8 screw that secures the tubes to the carriage
10. Unclip the tubes from the carriage and lift up.
11.Unclip the tubes from the tubes guide.
12. Release the Tubes Bracket from the ink supply station
By pushing the clips inwardds and lifting up the bracket.
13. Remove the complete ink supply tubes assembly from the printer.
14. Reverse the process to install the new ink tube assembly.



Sharing 20 years of HP Designjet 500 and other retired model printer experience to assist you in keeping your great designjet printer functioning correctly. Feel free to post a question here, or visit me at my website


You can save thousands of dollars repairing your own HP Designjet plotter. I'm often asked, "how long will my printer last if I repair it myself?" The answer I've been using as a general rule is 4 to 5 years. With affordable replacement parts, fast delivery, detailed youtube instructions, and access to an experienced technician -- you have found your one source for complete HP Designjet repair satisfaction.


If you have any questions, please call me, Tom, at 260.348.5653.


Feedback from satisfied customers:


Dean Barrett on November 03 2016 at 09:37AM

Thanks for all the help with our plotter. The 510/G2 card was so much cheaper than from a rep of HP. The whole transaction went smoothly. He is in my favorites category now. Thanks Tom.

Chuck Palmer on October 21 2016 at 01:25PM

I have purchased many hard to find parts from
Always fast, friendly, knowledgeable, and reliable service.
Tom always goes above and beyond to provide excellent service.
Thank you!

J Duggan on October 18 2016 at 09:05AM

Tom was very helpful in dealing with my inquiry regarding my initial fault with my GL/2 Accessory Card and finally sorting me out with a replacement. Great service and quick delivery to Ireland. Replacement card worked straight away.

CopierTechnics on August 30 2016 at 04:37PM

It’s a pleasure doing business with Tom is extremely knowledgeable and the parts are priced right… AND they arrive promptly!

Mark Milidantri on August 25 2016 at 11:30AM

I have consulted with Tom twice in the past 6 months on my HP Designjet 800, once for a formatter board that went bad and then again this week for a display board. Tom was very helpful and was able to diagnose our problems over the phone and get us the parts we needed to get us back up and running again. Tom has saved us hundreds of dollars that other companies said it would cost to repair this machine. I highly recommend Tom and his company Designjet Parts Fast to get your printer back up and running “FAST”. We will continue to use Tom for our necessary parts needed for our printer.
Thank You,
Jacobsen Landscape Design and Construction Inc. Midland Park, NJ

Eddy Ishac on July 14 2016 at 10:13AM

Your package arrived yesterday ahead of schedule. I replaced the part and everything is now functioning perfectly. I wanted to thank you for your excellent service and going the extra mile to help out. When I priced the replacement cost for the Designjet 510 Formatter board your cost was significantly lower than the competition. Needless to say when I need service for my printer in the future I am definitely coming back to you. Thanks a bunch.

Alan Wiese on July 07 2016 at 03:00PM

Thanks Tom for all your help. Quality reliable parts and fast shipping. Excellent source for parts and tips.
Thanks Again

Bob on June 17 2016 at 03:27PM

We had an issue with our GL/2 card for our Designjet 510. Card was still under warranty and Tom was able to get us the replacement quickly. We will definitely continue using him for our plotter needs in the future.

Ed Greene on June 09 2016 at 03:02PM

I always use Tom for all my DesignJet parts. Price, shipping and quality has always been #1. Being a small businessman and a technician for 30+ years I look for reliable sources of quality parts and Tom has been it!

Dennis R on May 18 2016 at 02:22PM

Thanks for the help over the phone, looking forward to receiving my order and getting my printer up and running!

Lisa on March 31 2016 at 12:23PM

Tom saved my butt. Searched high and low for a pca main for a t520 which was back ordered until August and he saved the day. Thanks Tom..

Doug Anderson on February 29 2016 at 02:57PM

Spoke with Tom and placed my order for a Designjet 510 GL/2 Accessory Card on Wednesday. Tom knew I was experiencing plotter problems so he shipped the part the same day and I received the card on Friday. Worked great!

Great service!

Jay Davis on February 22 2016 at 10:47AM

I thought I would be looking at a large service bill to fix our plotter and in doing some research came across Tom was able to answer my questions quickly and it was determined we needed to replace the formatter board. I ordered it on a Friday and it was on my desk on Monday. The plotter is now happy again and I am a very satisfied customer.

Steven Kipus on February 22 2016 at 08:32AM

Tom is great to work with!
He is easily contacted by phone and he returns your emails.
Can’t wait to see our plotter functioning again.

D. Varrone on February 11 2016 at 10:51AM

Excellent. Dropped in new Designjet 510 formatter card and we are back in business. Tom’s response was quick and knowledgeable. Shipped same day.

brian on February 02 2016 at 10:26PM

This was the easiest fix I have ever had. I ordered the formatter board from Tom, it arrived in a few days, in the package with the board, was a return prepaid priority envelope. I install the formatter board, it worked perfectly. I put my old formatter board in the envelope, and dropped it in mailbox. It all worked perfectly! I would work with Tom again.

Christina on February 02 2016 at 11:21AM

Tom was very helpful, getting us the part we needed to get our plotter up and running again! He was very responsive when a minor shipping issue occurred. His YouTube video installation guide was very easy to follow to make sure we got the part installed correctly without having to call in a technician! Will definitely use in the future. Thank you!!

Robert Ryan on January 08 2016 at 09:27AM

I have been working with Tom for several years and he always is helpful with technical support questions. When I place an order online we get the product quickly and at a very competitive price. Great customer service!!

Shani Daughenbaugh on December 03 2015 at 10:27AM

Tom is very easy to work with went out of his way late night to get us our part next day . If I ever need another part that he supplies he will be the first one I go through

Rich Black on December 01 2015 at 04:12PM

Exceptional Service. ordered from Canada, rec’d part in a few days and all went well. Much Thanks.

becky on December 01 2015 at 12:20PM

We are so delighted that the fix to our Designjet 800 was so easy! Thanks, Tom, for having the part available, shipping it out so fast, and having the resources on your website to get us up back working.

Mark W on November 18 2015 at 08:13AM

Tom is an awesome guy, helped me out with a problem I had without any hesitation, will definitely be supporting him!

Jan on October 31 2015 at 01:19PM

Could not have been easier. Worked great. Just plugged it in. I will keep your information on file in case I ever have problems with my plotter again. Thanks again.

Colin on September 24 2015

Tom was a huge help. Our IT guy said that this machine was outdated and just to buy a new one which is around $4,500-$6,000. I reached out to Tom for help due to the 05:10 error and he told me to replace the formatter board. Easy plug an play, less than a 5 min fix and it is back up and running like it should for less then $300! Thank you very much Tom!

Rob on September 23 2015

Excellent service, prompt shipping, fair prices, plus plotter was up an running in no time, what more can you ask for? Tom will be the first person I contact for future plotter part purchases.

Mircea on September 02 2015

Good price, quick service, great support. Tom was very knowledgeable and helpful in identifying the problem and recommending the correct solution. The board worked perfectly and our plotter was back in business in the minute following the card installation. This is definitely the first place I’ll call in the future for any problem with HP devices …

Sharon on August 17 2015

Tom was awesome! We needed this part right away and he went out of his way to help. We went back and forth on the shipping method-and he was very patient for me. Also, gave us tips as to why our cards kept getting ruined. I would definitely deal with Tom again. Frank on August 14 2015 at 04:40PM

This is my second purchase from Tom. Thank you for having the right parts at a reasonable price.

Ronald on August 14 2015

Finding the part for my hp designjet 500 was very easy to find on your site, Talking with Tom showed me what an expert he is in this field. Ordering was a dream(simple.) For action and delivery 100%. THANK YOU VERY MUCH. Ps.I have already recommended you to to my friends who can do with your service.

Tony on May 05 2015

This was my third purchase from this place and all have been smooth and trouble free transactions. fast shipping and product as described. will do business again and recommend this seller.

S. True on April 17 2015

Tom was very helpful and worked with me to see if I would be able to put an HP-GL/2 into my HP Designjet 500 that didn’t have one installed. He sent it to me to see if it would work and it worked flawlessly allowing me to print from a couple of our computers that haven’t been able to send a print to our plotter for years. Will definitely come back for any future needs.

B Bouapha on April 07 2015

Tom was very accommodating in rushing our urgent need for our parts. We didn’t need everything and he did not have a problem accepting our return. He is ALWAYS available and in this industry, I’m pretty sure everyone agrees that we all need HELP ASAP!! Thanks for everything Tom!

Steve on March 27 2015

Great service, quick shipping. What more can you ask for! Will reach out to Tom for future designjet plotter issues.

N Enloe on March 21 2015

Quick service, excellent follow up, card worked first time we powered up. Will definitely use again.

Ryan on March 11 2015

Tom is a super nice guy and easy to deal with. He explained everything to me with patience and went out of his way to accommodate our need to have the 510 GL/2 card sent to me UPS Next Day! Don’t know if the printer is fixed yet because I just ordered the part 5 minutes ago, but I will keep my fingers crossed. Either way, Tom was great!