HP Color LaserJet 2550 Printer series - Manual (Page 34)

Understanding Supplies Status
The printer contains five lights and one button to indicate and control the status of the print
cartridges and imaging drum. To interpret and troubleshoot control panel light messages,
see
Resolving the control panel messages .
Black, Cyan, Magenta, and Yellow Supplies Status lights
These lights indicate when a print cartridge is low (the light is on), or empty or missing (the
light blinks). The lights also indicate when a non-HP print cartridge is installed (the light
blinks and the Attention light is on).
Rotate Carousel button
When the top cover is closed, pressing ( R
OTATE
C
AROUSEL
) rotates the print-cartridge
carousel to bring the next print cartridge into the top position. The light for the print cartridge
that is approaching the top position blinks quickly two or three times.
Imaging drum light
This light indicates when the imaging drum is low (light is on), or empty or missing (light
blinks). The light also indicates when a non-HP imaging drum is installed (the light blinks and
the Attention light is on).
Understanding Printer Status
The printer has two buttons and three lights to indicate and control the printer status. To
interpret and troubleshoot the control panel light messages, see
Resolving the control panel
messages .
Cancel Job button
●
When the Ready light is blinking, pressing ( C
ANCEL
J
OB
) cancels the current job.
●
When the printer is not experiencing an error, pressing ( G
O
) and ( C
ANCEL
J
OB
)
simultaneously prints a Configuration page and a Supplies Status page. (If an HP
Jetdirect print server is installed, an HP Jetdirect page also prints.)
● When a Supplies Status light is blinking and the Attention light is on (indicating that a
non-HP supply has been installed), pressing ( C
ANCEL
J
OB
) allows you to continue
printing.
CAUTION You might not receive any indication when a non-HP supply is empty. If you continue
printing after the supply is empty, damage to the printer can occur. See
Hewlett-Packard
limited warranty statement .
Attention light
Generally, the Attention light blinks when the printer is out of paper, when a jam has
occurred, or when other problems that need attention occur.
The Attention light is on and one of the Supplies Status lights is blinking the first time a non-
HP supply is installed.
24 Chapter 2 Control panel ENWW