HP LaserJet P2015 - Manual (Page 92)

Light status State of the printer Action
Paper Out Load paper or other media.
Paper Mount
The loaded paper or other media is not
supported.
Load acceptable paper or other media.
See
Supported paper and other media .
Press the Go button to override the
condition.
Table 7-3 Accessory error indicators
Accessory error Attention light Ready light Go light
DIMM slot incompatible error Off Off On
Table 7-2 Control-panel light messages (continued)
82 Chapter 7 Problem solving ENWW