text: hp officejet7110 won't print even after replacing new ink cart. /now has one "cyan" prhd prob. still won't prt i bought this 2nd hand from office supply store (used in store only) and have already put more parts into it (pwr. mod./pwr.cord. col.& blk. ink cart.) all for about $75 and am hesitant to add more. it cycles through after install. software etc. like it will print but flashes (bad printhead/replace cyan) and even with that will print nothing....the paper comes out with no ink. if anyone knows if this is worth adding the cyan prthd, i'll be glad to do that, but i was thinking that it should be printing the black ink at this point unless it needs cleaning, etc. any solutions for cleaning, repair, salvaging this problem are deeply appreciated. thanks!! hello again.  thank you for choosing my previous answer as 'best answer'.  so sorry to hear you are still having problems.  i, too would recommend replacing the cyan printhead.  it should run no more than $34.  item number is hp c4921a.  some printer units out there usually do not print anything if there carts/printheads are bad.  but they usually refuse to move at all. to replace the machine with the updated one would run you about $200.- $250.  so you need 2 decide if you want 2 put more in2 this 1, or scrap the idea and get a new 1.  i'd hate to see you be only $34 away from having the printer work flawlessly, and on the other hand, you don't want 2 nickle and dime you in2 the $200. price where you could have gotten a brand new one. double check with hp, i think they can be a great asset.  i think they also have a buy back program, where they will buy your old machine back.  they only give $50, but i'm not sure if this is limited to handheld units or not. good luck - have fun!! - hope this helps.