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My printer pixma mp780 is Writing #357, whats wrong I have made my maintenance, Bottom clean.

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Hi

This is an error message which refers to the position of the paper feed unit,or if the sensors that detect the paper is malfunctioning.

Take out all the papers,fan them a little and also unplug the power cord from the printer
Now,press the power button on the printer and hold it for 15 sec,to perform a power flee.

turn on the printer put,the papers back and check if it works out

it is possible to fix if you have 3 to 4 hours to kill, you have to dissasemble the printer completley and split the main unit inside into two(sheet feed and cassette feeder) they are connected by 4 screws, correct the timing(marks in red) on the gears auto sheet feeder and cassette feeder on both units and and rotate the cam shaft assembly to the start position

takes time but the fix works.

Posted on Nov 02, 2010

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1 Answer

My canon pixma mp780 printer is giving the message "wrong cartridge". I did have a non canon ink cartridge in there, but now the cartridges are all canon, and I am still getting the "wrong cartridge"...


1. Remove the front printer cover.
2. Then take out the ink.
3. Next pull up the gray lever and take out the printer head.
4. Now go to the sink and start running the hot water. Then slowly and gently run the hot water over the metal part of the printer head. Use a soft tissue and gently clean the dry ink out.
5. Now dry the printer header with a soft cloth and wait for it to dry before placing it back into the printer.
6. Turn on your printer and see if it works now.

Oct 01, 2013 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Hi my printer PIXMA MP780 all in one is not working when switched on it gives me the erra message ##357. everything is on but its not working. Please help


357 ASF paper feed (AP) position error
Cause: An error occurs at the AP positioning in the ASF (Auto Sheet Feeder) unit.
Solution: (1) To reboot, press [OK] button or turn off and then on the power.
(2) Replace the SHEET FEED ***'Y.
(3) Replace the SPCNT board.

Nov 16, 2010 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Error 357 the print head appears to be stuck


357 says the sheet feeder is out of sync with the drive assembly, needs to have the encoder wheel checked, and also the drive gears on the side of the feed assembly. Sometimes the plastic studs break leaving the drive gears just floating.

Dec 23, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

My PIXMA MP780 is still flashing check the printer then press ok - an error msge ##357 keeps coming up. what does this mean pls?


This is an error in the position of the paper feed unit.
First, make sure there is no paper jam anywhere in the machine.. look inside, rear, where the paper tray (output) is, etc to see if you find any shreds or torn paper that may have gotten stuck and you didn't see.Look carefully in the zone of Purge unit, using flashlight in the right side on printer.Look in the sheet feeder too. If this not help your printer need service.

Oct 28, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Hi, our black 3ebk will not print. we have deep


Check if there is a tape over the top vent intended to let air into the ink tank and so ink can flow out to the writing head.

Sep 27, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

When i turn it(canon MP780)on, i see a error (##357). How can i fix it?


The service manual says this for ##357:
ASF paper feed (AP) position error.
AND ALSO:
##357 ASF paper feed (AP) position error
Cause: An error occurs at the AP positioning in the ASF (Auto Sheet Feeder) unit.
Solution: (1) To reboot, press [OK] button or turn off and then on the power.
(2) Replace the SHEET FEED ***’Y.
(3) Replace the SPCNT board.

Apr 04, 2009 | Canon PIXMA MP780 All-In-One InkJet...

1 Answer

Repair


Error code 357 has to do with the print head & waste tank.

You can try and fix it yourself by performing the following:

-Turn off the printer.
-Open the top & both doors.
-Manually slide the ink cartridge carrier to the left.
-When you look back where the ink parks you will see a rectangular white assembly with 1 long & 2 short plastic tabs standing vertically.
-clean these carefully with a cotton swab & rubbing alcohol. They don't have to be perfect.
-NOW HERE IS THE HARD PART. Carefully reach around to the back of this assembly & move it forward. It should slide front to back easily. If it doesn't it's probably stuck with some dried ink.
Once this is free, slide the ink tray back, close evedrything up & start your printer.
The problem should disappear.

good luck!
Brad Nelson

Mar 15, 2008 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

Getting printer to work


## 357 error is the ASF paper feed position error on the MP780.
I have the maintenance manual in pdf format I could email you, its a 5.6Mb file be warned :)
regards Paul
pduffyd@hotmail.com

Jan 16, 2008 | Canon PIXMA MP780 All-In-One InkJet...

2 Answers

Mp780 error code ##357


Try Canon Technical Support-maybe a defective printer to be replaced with a recon unit. failing that try www.fixyourownprinter.com

Jun 19, 2007 | Canon PIXMA MP780 All-In-One InkJet...

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