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Ask Engineer John C. Your Own Question
Engineer John C.
Engineer John C., Computer Science Engineer
Category: Printers
Satisfied Customers: 4895
Experience:  CompTIA A+ Certified and 10 years of experience repairing computers and printers.
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My MG3550 Canon printer comes up with error2,140,21 when I

Customer Question

My MG3550 Canon printer comes up with error2,140,21 when I try to copy a document. The yellow warning light is flashing twice
Submitted: 1 year ago.
Category: Printers
Customer: replied 1 year ago.
It stopped functioning when I replaced the black ink cartridge....which I have done before with no problem
Expert:  nathan_mills replied 1 year ago.
Hi Mike. Welcome to justanswer.Are you using Windows. If yes, then Go to "devices"Click on "Printer"Click on "Stop printing"Clean cartridge and push reset button for 5 sec.Reply if error persists.
Customer: replied 1 year ago.
thanks have done but still persists.... the yellow light in the triangle with lightning sign is flashing 3 times
Expert:  nathan_mills replied 1 year ago.
Check for any jammed paper or bits of paper in the tray.
Customer: replied 1 year ago.
have checked and nothing there....scanning function does not appear to work either however normal printing seems to be ok
Expert:  Seth Merrick explains replied 1 year ago.
Are there any other steps -- at all -- that you've already tried, beyond what you've mentioned so far?(for instance, turning the power completely off, unplugging the printer, waiting 60 seconds, then re-plugging & turning it back on?)I'd like to be certain & clear of what other steps you've already taken or tried, before going further.
Customer: replied 1 year ago.
I have tried the unplugging/60sec wait. It appears to be just scanning and copying that do not work. I can still print on the MG3550.I have not tried any other solutions and found the online handbook not helpful. When I try to copy after a few secconds it feeds a sheet in and then it just runs it through without printing the document on the copying plate. The yellow light then starts to flash twice every few seconds.
Expert:  Seth Merrick explains replied 1 year ago.
Hi Mike,Thanks again for that info.Q: Have you attempted to contact Canon support on this issue?If so, please let me know what the result(s) of that were.If not, please let me know, and I can provide that you information.In addition, I have other troubleshooting steps we can take a look at:Q1a: Is this a brand-new ink cartridge, or one that you already owned & had refilled, or a used one from someone else?Q1b: What business did you purchase it from?Q1c: Did you purchase it online or in-person?Q2: Can you remove the ink cartridge again — and turn it over very carefully — examine it from every side & angle; top, bottom, front, rear, left side, right side…… lift up any flaps/panels, & see whether there is any *orange tape* — or anything else — that might be part of the packaging/protective materials… which would need to be removed, first?(Sometimes, I myself have been a bit hasty and overlooked one tiny bit of orange tape sticking out of an ink cartridge…. if it’s not all carefully removed, this can keep it from functioning.)Q3: How many paper trays/feeders can you see on this device (e.g. front & rear)?Have you checked any & all of them for paper jams, bits of paper, etc?