Xerox DocuPrint 100 Operator's Manual page 70

Overview
B4 papers
1-50
Figure 1-32. US Ledger or US Tabloid (11 by 17 inch) paper
feeding (short edge feed)
There are two versions of B4 paper: European (ISO B4: 9.84 by
13.89 inches / 250 by 353 mm) and Japanese (JIS B4: 14.33 by
10.12 inches / 364 by 257 mm). European B4 feeds long edge
first, while JIS B4 may feed either long edge or short edge first.
Figure 1-33. B4 (250 by 353 mm) paper feeding (long edge
feed)
Figure 1-34. JIS B4 (257 by 364 mm) paper feeding (may be
long or short edge feed)
Operator Guide