For my wife and me, TSC received our applications on July 23rd, 2007.
Checks cashed on October 22nd, 2007.... Just about 3 months.
Received our receipts on November 2nd, 2007.
Notice Date: October 26th, 2007.
N-400 Receive Date: July 23rd, 2007.
Priority Date: July 23rd, 2007.
Fingerprinting notices received on November 3rd, 2007. (1 day after receipt notice received)
Fingerprint Notice Date: October 30th, 2007 (4 days after receipt notice date)
Fingerprint scheduled for November 17th, 2007. (18 days advance notice)
So, it looks like the fingerprint notice is probably generated at the same time or very soon after the receipt notice.
Checks cashed on October 22nd, 2007.... Just about 3 months.
Received our receipts on November 2nd, 2007.
Notice Date: October 26th, 2007.
N-400 Receive Date: July 23rd, 2007.
Priority Date: July 23rd, 2007.
Fingerprinting notices received on November 3rd, 2007. (1 day after receipt notice received)
Fingerprint Notice Date: October 30th, 2007 (4 days after receipt notice date)
Fingerprint scheduled for November 17th, 2007. (18 days advance notice)
So, it looks like the fingerprint notice is probably generated at the same time or very soon after the receipt notice.