Using the Control Panel Control Panel Layout The printer’s Control Panel consists of the following: 2-line display 4050 only Figure 3-1 Control Panel Layout Control Panel Lights Table 3-1. Control Panel Lights Light Indication Ready The printer is ready to print. Data The printer is processing information. Attention Action is required. See the Control Panel display. 3-2 Printer Operation READY Ready Go Menu Data Item – Value + Attention Cancel Job Select