I'm pretty sure idle EPR on a BR700 is below 1.0. 0.9-something, if I recall correctly.
Might be related to whether its "IEPR"; again, I hazily recall that some types use just the core or bypass EPRs, while some use an averaged value of some kind. if the engine is at low power, such that the thrust is disproportiantely from core over fan, maybe a fan-biased EPR will read below 1.0 even when there's a small amount of net thrust?