I saw this posted on another sight. Perhaps a clue?

By chance, has anyone interfaced the Epson RX8025 by I2C to any LPC
chip? Or any MPU for that matter? The standard read method for I2C
works very reliably for this chip, but there is a 'simplified read' in
the datasheet which requires fewer steps. I have not been able to get
this method work very well at all. The chip never sees a STOP and
therefore hangs quite often. Perhaps there is a bug in the chip for
this method and Epson and their FAEs have been no help at all.