Epson X-PRF 1000 - Manual (Page 2)

IMPORTANT NOTICE
Pages of a multi-page document must be between 0.06 and
0.09 mm thick. If they are not, transmit them one by one or use
a copier to copy them and send the copies instead.
If a document stops partway through the feeder, press STOP to
remove it. Do not open the paper cover without removing the
document first.