getdong wrote:Post office says and I believe online printed labels even say don't tape over the bar code.
They do.
getdong wrote:If you print shipping from home it's on regular paper with cheap home printer ink. One drop of water hits that barcode and the whole thing is going to smear it could also easily rip.
You can get inexpensive self-adhesive shipping labels that won't easily rip. You can use a laser printer (black & white laser printers are cheap) that won't smear. Or you can bypass the ink issue altogether and use a thermal printer with self-adhesive labels. This is the slickest and most cost effective method if you do any volume. You can get a refurbished Zebra LP2844 package on eBay for around $130. The labels are cheaper, there is no ink or ribbon to buy, you don't have to tape over the label, and it's a huge time and hassle saver, so it pays for itself in no time.
getdong wrote:I always tape over barcode and never had an issue. I think someone on an ebay forum actually did an experiment and you can put something like 27 pieces of tape over the barcode before the machine has trouble scanning it.
Depends on the tape and the scanner. Not everybody uses the same tape, and not every post office uses the same scanner. I have received many packages where tape over the barcode made it difficult and sometimes impossible to scan. There's a reason they ask you not to do that. If you really want to do it, try this: put a strip of tape over the addresses to protect those, and put a strip of tape over the bottom half of the barcode and the numbers, but leave about a 1/2" strip of barcode untaped. This way the numbers and part of the barcode are protected in case of moisture, but there is a strip of exposed barcode that can be easily scanned. Win-win.
getdong wrote:Ohter reason with flat rate packaging and envelopes I believe they want you to only use the pre strip of tape that comes with the box for sealing they dont want you to add additional tape or sealing methods. This policy is rarely enforced but it is a rule i believe.
Incorrect. The sealing strip on small FRBs and on FREs must be the "primary means of enclosure," but there is no rule that prohibits additional tape for reinforcement. That basically means that the flap needs to close (you cannot distort the shape of the box, or of the envelope to the point that the self-adhesive flap won't close and hold it shut). As long as the flap closes and seals, you can add whatever tape you want. If a postal employee challenges it, ask them to show you the rule in the Domestic Mail Manual (DMM) that says you can't tape flat rate products; there isn't one, the only rule is that the flaps must close and seal as intended.