![]() ![]() You just missed my MP730 Repair Manual sale on eBay. Once home is found, all horizontal position is measure or determined by the timing strip. This is where the photo cell in the Carriage asm detects the large black dot. The Service manual says the carriage position is initially determined when the carriage is driven against the right wall or stop. If you've seen some of my other posts on this web site then you know that this is a very difficult job. The bad news is that you can't get at the drive belt without taking the printer apart. ![]() Head alinment is only meant to take care of microinches, and it looks like you caused the drive belt to skip about 1/8". I would assume that the printing from left to right does not match or line up with the printing from right to left. Ok, now that you have the problem, what are the other symptoms. I always take the opportunity to move the carriage to the far left so I can examine the purge station and possibly clean out some excess ink. As a rule, when ever I take out the printhead, I unplug the power so the carriage is dead and moveable. It should only be opened when you are going to take out the printhead. ![]() By now you know that you don't have to open the locking lever just to change the ink carts.
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