Hi. I don't know of anywhere that a manual would be available, as this is an old model. However, I might be able to help you with it. There is an ink roller which you replace (DON'T REFILL IT). It is under a metal plate at the front of the printer. Pull the plate up and out, and you will find the roller underneath.
To use the machine, turn the key to REG mode. Type a price (NO DECIMAL POINT), then press one of the category buttons on the right, then press cash, or other payment button.
See how you get on, and feel free to ask any more questions.
Mark
Mark, May 2008