Overview: If "Service Printer" is being displayed at they keypad(s), it me be due to a ground fault being caused by the printer.
After verifying that the steps have been taken and all settings are correct for both hardware and in programming, check for a ground fault being caused by the printer.
If a ground fault is present when the printer is connected to the 9131A and plugged into the "wall outlet", the ground fault could be being caused by the "grounding prong" on the printer cable. A "3 prong" to "2 prong" adaptor placed on the end of the printer cable that connects to the "wall outlet" will address this issue.
Part numbers D9131A, D7212, D7412, D9112, D9124, D9412, D7212G, D7412G, D9124G, D9412G, D7212GV2, D7412GV2, D9124GV2, D9412GV2, D7212GV3, D7412GV3, D9412GV3,