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How to repair Canon SmartBase MP360, flashing error code ##345

Try with your own risk.


Symptoms:
-Grinding noise (very loud)
-Flashes error code ##345

Error code ##345 = "BJ cartridge head cleaning error" -reasons for this are:
-Foreign material or dried ink in head cleaning unit (also known as "purge unit") , or waste ink pump jammed up. Make sure waste ink pump rotates freely, after cleaning. Clean the waste pump-hose too! Waste ink pump is located under head cleaning system.

Short solution:
1.Take apart and wash the ink clogged mechanical parts. Use hot water.
2. Reset waste ink counter


What to do (Long version):

Dont rush, this operation takes several hours / days to complete!

-Take apart the whole printer, so there is only a metal frame left, with couple of paper-rollers, and motors, and the "Print-head cleaning" -system. Wash this cleaning-system.

-Mark all wires that look the same (especially white flat ones), take photographs when disassembling, or use photographic memory

In detail, remove at least following items:
-Main Power lead!
-Casing (Use brigh flaslight to see TWO front cover-screws under the dark plastic!)
-Scanner (BEWARE of fragile flat-wires)
-Main electronic controller board
-Some other shit, metal plate, plastic cover, you will see.
-Plastic base plate
-All materials that might absorb water. (two sponges, and one rubber foam part)

The two sponges are between metalframe and baseplate, they absorb exess ink. Wash these separately, and dry, or change for new. (I left the shorter one out, when assembling)

There is also one long rubber foam part that is near where paper comes out, (visible from outside the printer, when cover is opened).

To get rid of the excess ink: Wash dirty parts heavily for 10 to 15 minutes with hot water. When outcoming water is clear, then it is clean.

-I let it to dry for couple of days (on heated floor), but you can use your imagination, compressed air could help it dry faster.

Assemble it back together, and see if it works....

Expert:	Molinari
Pos. Feedback:	99.2 %
Accepts:
Answered:	5/10/2009

Computer Support Specialist

Certified IT Guru since C-64 and Amiga, expert at grey areas....