sorry I had a problem with updating my email address for this forum and was able to get on but couldn't post.
Anyway, I thought the printer was a 5500 because thats what the test page samples he brought me said. When I talked to him he kept calling it a 5550. Apparently someone (different company) had replaced the formatter on this machine with a 5500 formatter.
Secondly, another tech said he had this same problem and said he had to pay for HP's tech support to find out after going to Tier 3 that the problem was the fuser drive motor asm (gears and motor at the top like the 4600's have). He said he replaced it and it fixed the problem. So I suggested that he change the formatter to the correct one (likely to cause other problems-don't know what bonehead did that) and if the problem didn't go away to change the fuser drive motor asm.
I will try to post an update as to whether that fixed the problem. Thanks for all your help. I appreciate it.
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