Pitney Bowes DM300c User Manual

The Lock Code prevents unauthorised access to your mailing system 

after the machine has entered sleep mode or it is in a "soft" power-

down mode (by pressing the Lock/Power key on upper right corner of 

the control panel).
1.  Press 

Options.

2.  Select "Setup".
3.  Select "LockCode/Password".
4.  Select "Enable Lock Code". 
5.  At the prompt, type in a 

new lock code (4 digits) and select "OK". 

6.  Re-enter the new lock code again to confirm and select "OK". 
7.  At the "Lock Code enabled" message, select "OK".
8.  Press 

Home to return to home menu.

1.  Press 

Options.

2.  Select "Setup".
3.  Select "LockCode/Password".
4.  Select "Disable Lock Code". 
5.  When prompted, enter the current Lock Code and select “OK”.
6.  Press 

Home to return to the home menu.

Your DM300c/DM400c mailing machine contains postal funds 

and if you opt to use the 4-digit Lock Code to secure the funds, 

it is important that you do not allow your Lock Code to be 

compromised if the machine is used in an open area. If you 

believe your Lock Code has been compromised, it should be 

changed immediately. Alternatively, you may wish to consider 

locking the machine in a secure area.