Question about Canon PIXMA MP530 All-In-One InkJet Printer
I solved the problem on the MP530 printer of a friend of mine.
BUT: If you are not a DIY, I would strongly recommend not opening this machine.
It took me more than a couple of hours to disassemble, clean and reassemble again.
If you follow the disassembly instructions below, you might be able to do this faster than I did, because I had to figure out how to open the case without breaking anything.
Also, in the end, you will need some less ordinary tools like a very tiny crosshead screwdriver and a slim stick with a hook at the end to get the springs back on their places again. I used a steel instrument with a hook my dentist gave me but I guess one can fix a tool with a bent paperclip.
SECOND BUT: I cleaned up the consequences of this problem so the printer works fine again without that black streak on the back side of the paper. This does not mean that I found and fixed the problem.
Because I have not been able to find out where all this ink comes from in the first place. It is obvious that this ink is NOT produced when the printer prints because in that case it would have been on the front side of the paper and not the back side.
In this printer, once I had disassembled all and was left with the bare printer basement and the unit which does the sheet transport out to the front, I discovered a real mountain of nearly dry ink. The bottom of this mountain was sitting on the basement of the printer which is covered with a special kind of absorbing material which is supposed to deal with waste ink. And the mountain was high enough to rise through the sheet transport unit. Which explains the black streak.
As someone else said, the top of the mountain is underneath the big black cartridge.
So, one might say that this cartridge is/was leaking. But I have not changed the cartridge and the printer does not leak anymore.
To check this, once up and running again, I have been sliding a small piece of paper underneath the inner cover (the one you have to open if you want to change a cartridge).
By inserting this piece of paper while you pull down the cover (which enlarges the inner height of the sheet transport unit) you will be able to push the paper way in, underneath the area where the leak should be.
Whether the printer is off or on, in economy mode or cleaning heads, no single drop of ink came out.
It might of course be that my friend had not completely inserted the cartridge as it should, but in that case the printer should have warned, don’t you think?
I also found that exactly on the spot where the mountain was sitting, there is a small plastic tube which goes right, to the area where the heads are cleaned. I know that this tube is to transport waste ink, but I don’t know in which direction. If it is supposed to suck ink out of this place and spit it out in a lower level absorbing reservoir then fine, but what if it operates in the opposite direction? Then it would be able to spit ink underneath the paper even while you are printing… I am sure that real printer technicians have the answer to this question, so if someone wants to help us out with this one…
Do you still want to clean your printer? (Because that is all I did in the end).
Here you go then:
Next steps in the next post, since apparently text length is very limited here.
Posted on Jan 27, 2008
Frutchy rocks! I found that the instructions are not 100% correct - but they are close enough to head you in the right direction. My printer now prints beautifully without the black line! I found that I have to follow the 'Take off the scanner unit' steps BEFORE I followed 'Take off the metal plate supporting the PictBridge PCB and fax unit on the right'. Also found there were a few more screws to remove the top half of the printer than were mentioned - but they were all straightforward.
Posted on Jun 12, 2009
I tried Frutchy's solution and it allowed me to fix my problem. While the instructions can't be followed exactly, it's pretty close. Earlof18th must not have plugged something back in correctly.
My problem wasn't the black stripe on the back, it was an issue with a message on the LCD stating the "INNER COVER DOOR IS OPEN" when it wasn't. Toggling the door open and close several times did not fix the problem. I figured an internal switch was not tripping correctly when the door was closed so I searched the web and found Frutchy's answer.
After getting down to the end of his instructions for opening the unit, I found the switch that was responsible for telling the printer the door was closed/open. It was saturated with sticky black ink. I think some of the ink actually made it's way into the switch and fouled the contacts. By spraying a high pressure stream of WD-40 into the switch lever, I was able to clear the contacts and tested the switch with a multimeter...it worked again!
I assembled everything in reverse and the printer fired right up and printed my last page I had sent to it. Problem solved...for now, in two years I might have to do it again...or maybe I'll have a different printer then!
Fix took 3 hours from open to repair and saved me a $100 or so. Prepare to get black ink everywhere...WD-40 does take it off of surfaces well though!
Posted on Mar 24, 2009
I just got off the phone w/Canon, and am getting a refurbished replacement sent to me today. Apparently, the warranty is 1 1/2 yrs. They first suggested a local repair shop (covered under warranty), but when I asked what would happen if the issue continued in a month (when my warranty would be expired), they offered the refurb.
It's worth their effort ... we all buy enough ink to keep this thing going!
Really appreciate the repair tutorial, but feared I'd only make matters worse.
Posted on Apr 11, 2008
Frutchy is dead on in his fix. The ink is coming from a small diameter plastic tube that runs from under where the cartridges park at the far right end of the printer and terminates at the center of the printer atop some sort of blotter material which is supposed to absorb the ink. Problem is the ink is too viscous for all of it to be absorbed and it eventually starts to accumulate on top of the blotter material. Once the ink "mountain" builds up to the point where it reaches the rollers below the paper path it starts to leave the streak on the bottom of the paper. This ink must be from cleaning the nozzles which I believe the printer does every time the heads "park" for any extended period of time. A real stupid design if you ask me!! What really perplexes me is why Canon Tech Support didn't immediately know the reason. The "clean bottom plate" routine is like *****ing into the wind as far as this problem goes. It will never solve the problem for any extended period of time. The only way to truly solve the problem is Frutchy's way.
Posted on Mar 26, 2008
I had the same problem. I found the receipt , realized I was within one year. I called and had a 3 minute phone conversation that led to a new printer being sent to my business. It arrived in 5 days... brand new. I was extremely and pleasantly surprised at the responsiveness. I think it was sheer luck. An interesting side note, they didn't ask for a receipt , only the serial number. So, I wonder if "one year" really applies here. Good luck...
Posted on Jan 29, 2008
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Posted on Jan 02, 2017
SOURCE: it's the Black Stripe thing
You need a new ink absorber kit with a guard sheet to stop ink from coming up from the bottom and getting on the exit rollers. It's a major job to remove the print engine and a messy one. Best done in repair shop..
Posted on Jun 26, 2009
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