Trigger 37
Printer Guru
- Joined
- Dec 23, 2006
- Messages
- 607
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kabster,... I would like to add my suggestion. You should contact Canon even if your printer is out of warranty. They may do something about the problem.
I think the problem is a defective purge unit and it is the Black suction tube that has either come off, or is mostly blocked. This kind of problem gradually leads to a really clogged and dried up set of black nozzles. So when you put in a new printhead the purge unit can't successfully "Prime" the printhead with black in. So the nozzle check on prints until it runs out of ink. There was probably nothing wrong with the original head, the purge unit was just so clogged that it could not suck ink. One symptom of this is that after all kinds of head cleanings, deep cleanings, the black ink level in the ink cart would never go down. If you can't prime the head, which means you need to suck ink all the way down to each and every nozzle, plus the tiny "Tub" that sit next to the nozzles, there is no way it will print.
This same problem has caused such a back lash at Epson CX4600 they have replace just about everyone that went bad. The design was so flawed that Epson did not argue much about it. When a black ink cart would go mostly empty and someone tried to clean the head, the purge unit in the Epson was so strong that the connection of the suction tube would be blown off. Once the tube is off, the customer would continue to run cleaning cycles to get it to print. This kept going on till the Epson ink count said the ink cart was empty,... so guess what, the customer would put in another new ink cart, and start the cleaning all over again,....and guess what, pretty soon it would tell them the ink cart is empty again. The problem was that no ink ever got out of any ink cart,...they were still full. Only the counter said the ink cart was empty. I had one to repair and called Epson about it. They shipped me a new printer in two weeks. The printer was 2 years out of warranty.
I think the problem is a defective purge unit and it is the Black suction tube that has either come off, or is mostly blocked. This kind of problem gradually leads to a really clogged and dried up set of black nozzles. So when you put in a new printhead the purge unit can't successfully "Prime" the printhead with black in. So the nozzle check on prints until it runs out of ink. There was probably nothing wrong with the original head, the purge unit was just so clogged that it could not suck ink. One symptom of this is that after all kinds of head cleanings, deep cleanings, the black ink level in the ink cart would never go down. If you can't prime the head, which means you need to suck ink all the way down to each and every nozzle, plus the tiny "Tub" that sit next to the nozzles, there is no way it will print.
This same problem has caused such a back lash at Epson CX4600 they have replace just about everyone that went bad. The design was so flawed that Epson did not argue much about it. When a black ink cart would go mostly empty and someone tried to clean the head, the purge unit in the Epson was so strong that the connection of the suction tube would be blown off. Once the tube is off, the customer would continue to run cleaning cycles to get it to print. This kept going on till the Epson ink count said the ink cart was empty,... so guess what, the customer would put in another new ink cart, and start the cleaning all over again,....and guess what, pretty soon it would tell them the ink cart is empty again. The problem was that no ink ever got out of any ink cart,...they were still full. Only the counter said the ink cart was empty. I had one to repair and called Epson about it. They shipped me a new printer in two weeks. The printer was 2 years out of warranty.