We have the barcodes to scan to emulate the keyboardwe are trying to scan units of blood that are for example 35 S 13048 the scanner reads 1313048..the first part is always messed up any ideas

Your scanner may be set/programmed for a mode other than "keyboard wedge". Scanners typically come with a quick start guide with multiple barcodes that you can scan to program the scanner for your particular needs.
If you are trying to scan into Notepad or other text application, you will want to make sure the scanner is in keyboard emulation/wedge mode, and if you want it to have a "return" or "tab" after the scanned barcode, you should have options for that also.
If you have a used scanner and do not have the quick start guide or manual, you will want to look it up and download it from the manufacturers website.

usually you need to configure the reader to tell it what kind of barcodes you want it to read and how to interpret & output the codes to your computer (whether you need prefix or suffixes to your codes( for automation))

the user manual for the reader has some bar codes to configure the settings for the scanner.

Which main unit to Front end of what?
Sorry to say,but your question is not very clear about which product you need support.
Thus, please give some more detail on your product whenever you ask any support so that the experts can search the exact products and provide better support as there are hundreds of similar products in the market.
Please give exact Make and Model number of your product and also some more detail on your problem so that we could identify your issue better ant give appropriate solution.
Thank you.

The LS2208 is a universal scanner with many supported interfaces. Please check the ATS if one of the interfaces are available. See the list below:
RS-232 IBM 468X/469X Keyboard Wedge Wand Emulation Undecoded Scanner Emulation USB Synapse Adapter

You would need to setup the scanner to communicate in proer way, please use the barcode "Simple COM Port Emulation" from the Manual here http://support.symbol.com/support/search.do?cmd=displayKC&docType=kc&externalId=5880806apdf&sliceId=&dialogID=189660311&stateId=1%200%20189654341

In the Wavelink TE can you setup the an Tab after Scan option for the 3270 emulation. For other emulations are there similar choices. Please check the Wavelink settings on the desktop machine and the upload the modified config files to the unit via ActiveSync.

If your scanner shipped with a keyboard wedge cable and you are using a PS/2 to USB adapter all you should have to do is scan the IBM AT Notebook barcode on Adobe page 56 of 342 of the LS2208 Product Reference Guide. I suggest saving a copy of the document to your host then printing just that page. Scan the barcode then try scanning your barcode. If the computer still does not see your barcode try rebooting. If this still does not resolve your issue you may want to purchase a USB cable. The part number is CBA-U01-S07ZAR.

If you have the CBA-U01-S07ZAR and the scanner is not sending data then you should scan the HID Keyboard Emulation barcode from the QRG that came with the device or Adobe page 109 of 342 of the guide referenced above. I hope this helps.

setting;
System
Screen
Landscape

The barcode must be a Code 39 barcode, not a Code 39 Extended or Full ASCII barcode. The Enable Code 39 Full ASCII must be scanned from the Symbologies section of the LS2208 Product Reference Guide (page 186 of 342). The Enable Function Key Mapping barcodes would have to be scanned if you are seeing something other than the tab happen when you scan into your application. In Word, for instance you will see the italics enable/disbled whenever the $I is encountered in the barcode.

As for the Covert to Code 39 Full ASCII- that is for Wand and Scanner emulation. The setting was having no effect because you were not connecting to either of these hosts.

please get programing manual for Z-3080 then
scan start of configuration barcode then USB emulation barcode then end of configuration barcode
probably your problem wiil be solved.