HP LaserJet 3020 All-in-One Printer - Manual (Page 120)

Alert messages
Alert messages indicate that some action must be performed, such as adding print media or
clearing a jam. When an alert message appears, the device automatically stops the current
task and the job does not proceed until someone attends to the situation. After you correct the
error, the device either completes the task or returns to the Ready state. The exception to this
is when you want to use the main menus system. Then the device changes the display so
that you can use the menus system.
The following messages are generic alert messages that might appear on the device control
panel display:
● Doc feeder jam
Clear, Reload
● Document feeder
mispick. Reload
● Door open or no
print cartridge
● Manual feed
Press [enter]
● Memory is low
Press [enter]
● Add paper.
[enter] to continue
● No print
cartridge
● Printer jam
Clear paper path
Note See Media jams occur in the automatic document feeder (ADF) or Media jams occur in the
printer for more information about media jams.
Warning messages
Warning messages are important enough to warrant notification. They are of short duration,
but the condition that they describe might affect the completion of the task or the quality of the
output. When a warning message appears, the active job might be canceled. The message
appears on the device control panel display for five seconds.
The following messages are generic warning messages that might appear on the device
control panel display:
● Device error
[enter] to cont.
● Device is busy
Try again later
110 Chapter 8 Troubleshooting ENWW