I'd appreciate any help here. The print head lock only has a bracket on the right side (as I face it)--the side with the spring--and nothing to hold it in place on the left side. Seems like the spring creates tension that will make it easy for the lock to be unlocked. Is this the way it's supposed to be? Seems like the ridge on the left side might be a little rough, and I'm wondering whether a piece of plastic there broke off. (Can't see an odd peice in the printer or box.) Seems counter-intuitive, but maybe the ink cartridges hold it in place? I'd like to determine this before installing all the cartridges, in case I need to return it. Thanks for any help.
