Casio TE-7000s Electronic Cash Register used not working

Description

Casio TE-7000S electronic cash register. This register has some yellowing (see pictures of where a few stickers were peeled off) a few small brown spots I couldn't wipe off on the top of the cash drawer but overall looks to be in decent condition.
When powered on the backlit screen comes on (pictured) and the receipt printer starts automatically slowly feeding out receipt paper one line at a time. If a button is pushed it speeds up momentarily before resuming its speed.
I'm not sure if this is an issue of not being connected to a server or some internal battery being dead etc.
The cash register is WITHOUT a key, I don't know if a cash drawer inside is there or not, I've included a cash drawer I belive to be from the machine but since I can't open the drawer I'm unable to tell
In this lot you will receive a Casio TE-7000s cash register, power cable 8 pin data cable, cash drawer, and an old card reader that may or may not work (no power cord)
Hopefully I've been able to go over every detail of this machine, please let me know if you have any questions before buying!