[Cornfield27]

It seems our new GT-381 is pulling more ink from cartridge #1 than any of the other cartridges. I was under the impression all four would run out around the same time, but #1 is running out in about half the time as the other three. I have checked for a leak and couldn't find anything out of place. The Brother Technician doesn't seem to know what the issue is and I was wondering if anyone here could help me out.
We are using the machine as a 381 not a 361.

Thanks