HP Color LaserJet CP6015 Printer series - Manual (Page 27)

Interpreting control panel indicator lights
Indicator On Off Flashing
Ready
(green)
Product is online (able to
accept and process data). Product is offline or is turned
off. Product is attempting to stop
printing and go offline.
Data
(green)
Processed data is present in
the product, but more data is
needed to complete the job. Product is not processing or
receiving data. Product is processing and
receiving data.
Attention
(amber)
A critical error has occurred.
Product requires attention. No conditions exist that
require attention. An error has occurred.
Product requires attention.
ENWW Use the control panel 13