Seiko FB-900 - Manual (Page 71)

The following table shows the relationship between the paper width
settings in inches and the number of columns printable on each line,
when characters are printed at 10 cpi.
Paper width
3-12 — 3. Setup options —
Function
#
05
5 PAPER WIDTH
WIDTH : 15 IN
WIDTH : 12 IN
WIDTH : 10 IN
WIDTH : 5 IN
Supplementar y notes
This function specifies the width of fanfold paper.
This function specifies the width of fanfold paper in inches.
Setting procedures
Display Paper width Max. columns/line
15 IN 15 inches 136
12 IN 12 inches 106
10 IN 10 inches 80
5 IN 5 inches 36
#
1~#
9
#10
~
#20
#20
~
#29
#30
~
#38
#40
~
#44
#50,
#51
#60
~
#67
#70
~
#79
#80
~
#84
#90
~
#95