SATO CT400 Operator And Technical Reference Manual page 110

Section 4. Programming Reference
Special Notes
Page 4-66
1. A reverse image area is affected by the rotate commands.
Therefore, always assume the printer is in the normal print
orientation when designing and sending the Reverse Image
command.
2. If using reverse images with the form overlay, place this command
before the Form Overlay command in the data stream.
3. If the Rotate commands are used with this command, the V and H
parameters are reversed.
4. If the height and width to be reversed contain other than
alphanumeric data, the area is not printed.
5. If the values specified exceed the maximum ranges, the reverse
image is not created.
6. The maximum allowable settings are as follows:
Horizontal
aaaa
Vertical
bbbb
9001069A
CT400
0001 to 0832
0001 to 3200
SATO CT Series Printers
CL412
0001 to 1248
0001 to 4800