Printers

Printer repair questions? Ask IT technicians for answers ASAP

Ask an Expert,
Get an Answer ASAP!

I have a Canon Pixma MG 7520. I purchased this printer from…

Customer Question
I have a Canon Pixma...
I have a Canon Pixma MG 7520. I purchased this printer from Best buys in Waynesville, NC on 7/14/15. After replacing the initial cartridges, I keep getting an error COOO-either a component jam or wrong ink tank position. New tanks (all 6) nor a visible inspection does not correct problem. Best buys Geek squad gave up and suggested I sent the printer back to you for repair. Can you give me an estimate of charges, time for repair and where, how to mail the printer? Don
Submitted: 2 years ago.Category: Printers
Show More
Show Less
Ask Your Own Printers Question
Answered in 5 minutes by:
2/18/2016
Technician: Nathan, Engineer replied 2 years ago
Nathan
Nathan, Engineer
Category: Printers
Satisfied Customers: 32,171
Experience: Computer networking/repair. 12+ years experience.
Verified

Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.

Sorry to hear you’re having trouble, Don.

This is a “diffuse” message which simply denotes an internal fault. That can be caused by anything from debris/obstruction (paper jam, bent/damaged rails, out of place purge assembly/wiper, or dirty/dislocated encoder strip) to an actual hardware defect (bad sensor or control board, faulty carriage drive motor/gear/belt, bad printhead/carriage pcb).

What we can try here are some cleaning and reset steps.
First, open up the printer, and check for any internal debris such as scraps of paper, paperclip or staple, etc. Check if you’re able to move the carriage manually, or if it moves on its own when lifting the lid. If it does move, you can proceed with cleaning by blowing out the Inside compartment with compressed air and checking carefully on both sides for any obstructions. Next remove all of the ink cartridges, then clean the metal electrical contacts on the back, as well as where they mate up inside the printer, using qtips and rubbing alcohol. Dry well, then reseat the cartridges. Then wipe down the encoder strip, which is a clear plastic strip running the width of the printer, that sits just slightly above and behind the carriage.

Then reset the machine:
unplug power at the wall outlet
wait 5 minutes
press and hold the power/on button for 60+ seconds
keep holding while plugging back in, and for another 60 seconds after, then release

Let me know the results, and I’ll advise further if needed.

Ask Your Own Printers Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Nathan Your Own Question
Nathan
Nathan
Nathan, Engineer
Category: Printers
Satisfied Customers: 32,171
32,171 Satisfied Customers
Experience: Computer networking/repair. 12+ years experience.

Nathan is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

Shefin

Shefin

Printer and Office Equip. Specialist

3,882 satisfied customers

Working as tech support specialist with a worldwide computer manufacturer.

Russell H.

Russell H.

Printer and Office Tech

3,420 satisfied customers

11+ yrs experience, inkjets & lasers, from huge to portable

Andy

Andy

Elec & Comp pro

2,717 satisfied customers

11yr exp, Comp Engg, Internet expert, Web developer, SEO

Bernie

Bernie

Printer Technician

1,997 satisfied customers

6+ years experience, Microsoft MCDST/CompTia A+ Certified

Sudipto

Sudipto

Engineer

1,172 satisfied customers

DIploma in Computer Hardware

Md. Sadique

Md. Sadique

Engineer

1,131 satisfied customers

Electronics engineer with 7+ years of experience in repairing office equipments & printers

Handy--Andy

Handy--Andy

Technical

957 satisfied customers

Helpdesk

< Previous | Next >

Related Printers Questions
I have a cannon MG 3620. The printing is misaligned. Pixma
I have a cannon MG 3620. The printing is misaligned … read more
Josh
Josh
It Support Specialist
Associate Degree
5,163 satisfied customers
Canon Pixma MG7520 Wife disconnected A/C power cord without
Canon Pixma MG7520 Wife disconnected A/C power cord without first turning printer off. Now, when plugged back in - printer won't start: An orange error triangle light (with lightning bolt inside it) c… read more
Md. Sadique
Md. Sadique
Engineer
Diploma in applied electronics
1,131 satisfied customers
My Canon MX300, shows error on the screen, check printer,
My Canon MX300, shows error on the screen, check printer, 5800 don't know what that means help!! Thks Bill K… read more
VanMagnus Systems
VanMagnus Systems
Professor
Vocational, Technical or Trade Scho
70 satisfied customers
I have a Canon PIXMA printer MG 5150 series printer and it
I have a Canon PIXMA printer MG 5150 series printer and it is coming up with an error number B200… read more
VanMagnus Systems
VanMagnus Systems
Professor
Vocational, Technical or Trade Scho
70 satisfied customers
I have an HP Officejet 4500 Wireless printer. When I turn my
I have an HP Officejet 4500 Wireless printer. When I turn my printer on, the message scrolling across the front of the screen is, "Print cartridge problem: (black). Refer to device documentation to tr… read more
DrKlahn
DrKlahn
Principal Systems Engineer
Bachelor's Degree
615 satisfied customers
We have a Canon MX 870 Printer. The window reads Cooo, printer
We have a Canon MX 870 Printer. The window reads Cooo, printer error has occurred. Turn printer off then on. We have done this several times and unplugged it. Nothing is working. This occurred after w… read more
Md. Sadique
Md. Sadique
Engineer
Diploma in applied electronics
1,131 satisfied customers
i have a pixma mp800r which has error code 6A00 when switched
i have a pixma mp800r which has error code 6A00 when switched on. It cycles through start up for approx 10 secs and then a click and stops with the error code. Tried power off restart etc. Carriage go… read more
Russell H.
Russell H.
Printer and Office Tech
Vocational, Technical or Trade Scho
3,420 satisfied customers
Canon pixma mg5320 error code cooo or c000 shows and I do not
Canon pixma mg5320 error code cooo or c000 shows and I do not know what to do. Please help! I love this printer.… read more
Md. Sadique
Md. Sadique
Engineer
Diploma in applied electronics
1,131 satisfied customers
just bought a new printer canon. while setting up when print
just bought a new printer canon. while setting up when print cartridges are in installed the warning lights come on for both color and blk. have gone back to step 2 6 times and can not find the proble… read more
D.Sandlin
D.Sandlin
Support Technician
6,708 satisfied customers
re; canon all in one printer mx892: i want to conserve color
re; canon all in one printer mx892: i want to conserve color ink by printing with black ink only. i think i found the answer once while surfing the net. * this printer uses color ink as well as black … read more
robert
robert
Bachelor's Degree
2,594 satisfied customers
Canon MP530 wont print. On screen it flashes "Check Printer"
Canon MP530 won't print. On screen it flashes "Check Printer" alternating with the number 5100 in lower right corner of screen… read more
DrKlahn
DrKlahn
Principal Systems Engineer
Bachelor's Degree
615 satisfied customers
i have canon mx 340 pixma when i try to print the paper in
i have canon mx 340 pixma when i try to print the paper in rear tray does not feed properly it scrunches on right hand side only there does not appear any paper jam stuck inside however it is difficul… read more
DrKlahn
DrKlahn
Principal Systems Engineer
Bachelor's Degree
615 satisfied customers
For our Canon PIXMA MP500 printer- it is claiming there is
For our Canon PIXMA MP500 printer- it is claiming there is paper jammed in the dual transport thingy- refers to a "cassette" to be removed- we are not sure what that is- and the cover for the dual tra… read more
DrKlahn
DrKlahn
Principal Systems Engineer
Bachelor's Degree
615 satisfied customers
I just replaced the ink tank 220 PGBK and the printer is showing
I just replaced the ink tank 220 PGBK and the printer is showing on the screen that an error has occurred and is showing the number COOO and I did turn the printer off as suggessted and it is not work… read more
Freddy M.
Freddy M.
IT Technician
Vocational, Technical or Trade Scho
136 satisfied customers
I have a canon PIXMA mp130 and I got a error msg telling me
I have a canon PIXMA mp130 and I got a error msg telling me that my printer cartridge was jammed. I opened the front (like I was going to change a cartridge) but could not reach the cartridges to see … read more
birtz
birtz
Vocational, Technical or Trade Scho
380 satisfied customers
rear tray keeps jamming, like its gripping the paper too tight.
rear tray keeps jamming, like it's gripping the paper too tight. using 4.25x5.5 paper, 24 lb.… read more
Andy
Andy
Elec & Comp pro
MS Electrical Engineering
2,717 satisfied customers
I recently purchased a Canon Pixma Pro 9000.The ink cartridges
I recently purchased a Canon Pixma Pro 9000.The ink cartridges that came with it are just starting to run out. I changed the black a few days ago, then today the yellow, magenta and Photo magenta. I m… read more
Andy
Andy
Elec & Comp pro
MS Electrical Engineering
2,717 satisfied customers
I have a Canon Printer MP600. The other day it wouldnt work
I have a Canon Printer MP600. The other day it wouldn't work and an ERROR 5100 comes on the screen. Is there something I can do to fix it?… read more
Andy
Andy
Elec & Comp pro
MS Electrical Engineering
2,717 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x