ML620/ML621 User’s Guide The Control PanelKeys work differently according to which “mode” is active.Hold down the CHR PITCH key and press the PRINT SPEED key toenter Menu mode; repeat the sequence to exit Menu mode. In Menumode use the purple text labels underneath the keys to identify thefunction of each key.The lights above these key labels show which option in the list isactive. For example, if both of the CHR PITCH lights are lit, then 15CPI is the current character pitch; if both lights are flashing, thenPROP (proportional) is the current pitch.The 7 keys functiondifferently, dependingon which printermode is activeThe SEL lightindicates ifthe printer isonlineThe ALARM lightindicates analarm conditionThe MICROFEED keys advance() or retract () the paper insmall incrementsThe lines abovethe squareindicate aflashing light
