Couple of cleanup/issues in your config:
1) Cannot configure Speed 1g on fe-0/0/7 as this is a 100Mb interface
2) Removed interface vlan.100 in interface and vlans as this is not doing anything
3) Have updated the security-screen hierarchy to provide a more comprehensive configuration
4) Renamed the RDP Nat rule from SSH-Rule to RDP-Rule
5) Removed destination NAT source-address 0.0.0.0/0 from RDP-Rule (SSH-Rule) as this is not required as this will be the default behaviour.
6) Changed destination NAT destination-address to 0.0.0.0/0 from RDP-Rule (SSH-Rule) as this is my preference, less problems if you make changes. i.e change the internet connection or IP.
7) Your untrust-to-trust policy is completely open, not good! Have changed to only allow RDP inbound.
8) Most important - your untrust zone interface has all services completely open (I can SSH to your public iP 212.93.8.126), this is a BIG NO NO!! I have given you a sample of SSH access with a policy to control. I have also allowed ping/icmp.
9) Jonashauge is probably correct. Have added DNS to the DHCP pool as this is the most likely issue with your Ricoh. You might need to do more testing from the Ricoh to ensure that basic network connectivity is correct. Ping router, ping external etc. Check DNS configuration etc.
Config Included.