Open Forum

Dot gain when printing IMB

  • 1.  Dot gain when printing IMB

    Posted 04-01-2019 02:47 PM

    Hello everyone –

    Is anyone having difficulty with inkjetting IMB bars and the fact that the bars become too wide?

    We use GMC software, and they basically have one font for the barcode. We want to narrow the width of the bars by a smidge so when there is dot gain... the bars don't get too wide.

    Anyone else faced with this? 

    If so, how are you handling it?





    Kerry Hannify
    Director of Account Services
    Data-Mail, Inc

    240 Hartford Ave

    Newington, CT  06111
    Office 860-666-0399 x411




  • 2.  RE: Dot gain when printing IMB

    Posted 04-02-2019 08:20 AM
    Dot gain can be effected by the printing device and paper.

    The settings required for our programmers for IMB:

    23.9 Characters per inch and we normally set bar codes to align to Pixels.

    The reason we set the CPI is that we set our IMB to be just over the minimum size required by USPS.  This will always keep our bar code in the window if using a window envelope.  


    Nick Fair
    Customer Service Manager
    3950 Lancaster New Lexington Rd SE, Lancaster, OH 43130  
    o 740 654 2112 x175 / c 740 877 2716  
    e nick.n.fair@...  

  • 3.  RE: Dot gain when printing IMB

    Posted 04-03-2019 11:05 AM

    The simplest thing might be to just make a copy of the intelligent mail barcode font and then edit it and make the barcode characters narrower.  I think there are only 4 characters that you would need to edit. is an open source font editor, and there are many more that are paid that work well.


    Daniel Hutton

    Project Manager

    Carter Printing Company


    804.359.9206 x 305





  • 4.  RE: Dot gain when printing IMB

    Posted 04-04-2019 05:05 PM

    I do not currently use it but we have a satori font, SatIMLight.ttf which they describe as:

    Lighter to avoid overspray during inkjet printing. The required font size is 16 point.



    Kevin Donegan

    Vice President


    Creative Direct Marketing

    755 Middlesex Turnpike | Billerica, MA 01821

    800.767.0067 x302




  • 5.  RE: Dot gain when printing IMB

    Posted 04-02-2019 09:08 AM
    Check your settings and look for one called "barcode shaving". Not sure if you have that, but with the JetEngine software you can set by paper type (coated, uncoated, etc.) or by a percentage to get the thickness correct.

    Tim Martin
    Bindery and Mailing Supervisor
    Technaprint, Inc.
    Eugene OR