Pitney Bowes 1530 Fax Machine

You can download a copy of the user manual from here.
Pitney Bowes 3400 PRINTER OPTION Manuals

You may want to contact Pitney Bowes customer support:
Pitney Bowes Support United States

1. Press FEATURE
2. Press 9 9
3. Press * * * 1 (this is the service passcode)
4. PressYES
press 095
press yes
press stop to exit

your thermal print head is bad. This is a very old machine and I do not know where you can get parts. This machine is no longer supported by field repair

You will probably need a technician to set the machine back to it's factory defaults. Sorry

press function, print incomplete command report, then go to function 4 and use command numbers on report to delete.

The code is the same as the model number 8050, Your battery has failed and will not keep it's settings if it loses power.

Function
74
set
12
set
2
set
stop.

I have a 9920 manual,could be the same.Try the following but if you get different displays don't change anything.Press function,should read FUNCTION SELECT , ENTER FUNCTION # .Enter 8, scroll to AUTO REDUCTION.(use COM STAT or HELP keys to scroll)Change to NO.Press stop to return to normal mode.If this procedure is not exactly the same for your model,then just search through the function settings and find AUTO REDUCTION and set to no.

For the UF-595 here's how you turn the fax stamp on:
Function + 7 + copy/set for enter
scroll to option 4 + copy/set

Hit 04 + copy/set and enter number 2 to turn the fax stamp on. 1 turns it off.
Scroll to or enter 28 and choose 2 to turn the fax stamp on for faxes stored in memory for later use.

You hit the "clear" button to wipe out the current number before you enter 2 or 1 for the new entry.