RP4T (all firmware versions), R53.16.4Z, V53.17.7, V74.19.6Z, and all Link-OS printers
"up"
Increase the current value by 1
"down"
Decrease the current value by 1
R53.16.3Z
R60.16.x, R62.16.x, R63.16.x, R65.16.x, SP994Q, SP999G, SP1027G, SP1056F, SP1082G, and later
Older firmware