A method for reducing memory consumption when carrying out edge enhancement in a multiple beam pixel apparatus is provided, wherein Static Random Access Memories and first in first out buffers are employed. The IC further includes a control circuit having outputs coupled to enable inputs of the numerous DCI modules, where operating the IC in a test mode configures the control circuit to selectively couple a control signal to the enable terminals of the numerous DCI modules. The drive circuit is further configured to switch off the first subgroup at the end of a first time period and switch off the second subgroup at a time instant before the end of the first time period. A variable current circuit feeds a current to drive the LEDs.