Pitney Bowes DM230L User Manual

Processing Lettermail on the DM350L requires the same process as the 
DM230L and DM330L. You must first weigh the mail piece using the  
integrated weigh platform or through the Manual Weight Entry feature.  
You then must select a class of mail in order for the internal rating feature to 
calculate the exact postage amount. For a summary of the exact keystrokes 
required to process Lettermail please refer to the instructions outlined on the 
previous pages for the DM230L and DM330L
1.  Sort the mail according to size and thickness. For each run, feed envelopes 

of the same size and similar thickness. 
•  If you are printing a single normal envelope, the envelope can be 

up to 1/8” thick. 

•  If you are printing a single thick envelope, the envelope can be up 

to 1/4” thick. Do not feed more than 2 thick envelopes at one time. 

•  If you are printing a stack of envelopes, the thickness of the stack 

cannot exceed 3.0”. 

•  For acceptable length and width dimensions of envelopes, refer to 

the Specifications section in Chapter 1 in this guide.

2.  Align the stack of mail by tapping the side of the stack on a hard surface. 

Fan the stack to separate the mail pieces.

3.  Set the thickness selection lever (see figure below) to correspond to 

the correct thickness of the envelopes. For normal mail move the  
thickness selection lever all the way to the left.

4.  Set the Seal/No Seal lever (figure below) to the correct position.  

To seal the envelopes, move the lever all the way to the left.