HP Color LaserJet 2550L User Manual

							Resolving the control panel messages
Printer status is indicated by light patterns on the control panel. Two sets of lights are on the
control panel: Supplies Status lights and Printer Status lights:
8
1
10
11
12
9
3
4
5
2
6
7
1Supplies status lights and buttons
2 Black print-cartridge light
3 Cyan print-cartridge light
4 Magenta print-cartridge light
5 Yellow print-cartridge light
6R
OTATE CAROUSEL button
7 Imaging drum light
8Printer status lights and buttons
9C
ANCEL JOB button
10 Attention light (amber)
11 Ready light (green)
12 Go light and G
O button (both green)
The lights can be in any one of the following states:
1 off
2on
3 blinking
See the following information to interpret control panel lights. See the HP Toolbox to view
animations of the light patterns and information about the messages that they indicate.
ENWW Resolving the control panel messages91
 
						

							Supplies Status lights
This section describes the meaning of the patterns for the lights in the Supplies Status area.
Information about supplies also appears in the HP Toolbox. (For more information, see
Maintenance.) To order new supplies, see Accessories and ordering information.
Light patternRecommended action
Black print cartridge is low
The black print-cartridge light is on. The printer continues to print without any
action required until the print cartridge is empty. Order a new print cartridge.
Cyan print cartridge is low
The cyan print-cartridge light is on. The printer continues to print without any
action required until the print cartridge is empty. Order a new print cartridge.
Magenta print cartridge is low
The magenta print-cartridge light is on. The printer continues to print without any
action required until the print cartridge is empty. Order a new print cartridge.
Yellow print cartridge is low
The yellow print-cartridge light is on. The printer continues to print without any
action required until the print cartridge is empty. Order a new print cartridge.
Imaging drum is low
The imaging-drum light is on. The printer continues to print without any action
required until the imaging drum is empty. Order a new imaging drum.
92Chapter 7 Problem solvingENWW
 
						

							Light patternRecommended action
Black print cartridge is empty or missing
The black print-cartridge light is blinking. The printer stops printing.
The print cartridge is empty or missing, or the printer cannot detect the print
cartridge correctly. You must replace the print cartridge before the printer can
continue printing.
Reinsert or replace the print cartridge. If the print-cartridge light is still blinking but
the Attention light is not on, turn the printer off and then on. If the problem
persists, contact HP Customer Care. See 
HP customer care, or see the flyer that
came in the printer box for contact information.
Cyan print cartridge is empty or missing
The cyan print-cartridge light is blinking. The printer stops printing.
The print cartridge is empty or missing, or the printer cannot detect the print
cartridge correctly. You must replace the print cartridge before the printer can
continue printing.
Reinsert or replace the print cartridge. If the print-cartridge light is still blinking but
the Attention light is not on, turn the printer off and then on. If the problem
persists, contact HP Customer Care. See 
HP customer care, or see the flyer that
came in the printer box for contact information.
Magenta print cartridge is empty or missing
The magenta print-cartridge light is blinking. The printer stops printing.
The print cartridge is empty or missing, or the printer cannot detect the print
cartridge correctly. You must replace the print cartridge before the printer can
continue printing.
Reinsert or replace the print cartridge. If the print-cartridge light is still blinking but
the Attention light is not on, turn the printer off and then on. If the problem
persists, contact HP Customer Care. See 
HP customer care, or see the flyer that
came in the printer box for contact information.
Yellow print cartridge is empty or missing
The yellow print-cartridge light is blinking. The printer stops printing.
The print cartridge is empty or missing, or the printer cannot detect the print
cartridge correctly. You must replace the print cartridge before the printer can
continue printing.
Reinsert or replace the print cartridge. If the print-cartridge light is still blinking but
the Attention light is not on, turn the printer off and then on. If the problem
persists, contact HP Customer Care. See 
HP customer care, or see the flyer that
came in the printer box for contact information.
Imaging drum is empty or missing
The imaging-drum light is blinking. The printer stops printing.
The imaging drum is empty, missing, or the printer cannot detect the imaging
drum correctly. You must replace the imaging drum before the printer can
continue printing.
Reinsert or replace the imaging drum. If the imaging-drum light is still blinking but
the Attention light is not on, turn the printer off and then on. If the problem
persists, contact HP Customer Care. See 
HP customer care, or see the flyer that
came in the printer box for contact information.
ENWW Resolving the control panel messages93
 
						

							Light patternRecommended action
Black print cartridge is a non-HP print cartridge
The black print-cartridge light is blinking and the Attention light is on. The printer
stops printing.
A non-Hewlett-Packard supply has been detected. Although HP supports
customer choice, HP cannot guarantee the quality or reliability of non-HP
supplies. Service or repairs required as a result of using a non-Hewlett-Packard
supply are not covered under the printer warranty.
If you want to use this non-HP print cartridge, press 
 (CANCEL JOB) to continue
printing.
To ensure full availability and/or accuracy of printing features (such as remaining
supply status), use genuine HP supplies.
If you believe you purchased a genuine HP supply, go to http://www.hp.com/go/
anticounterfeit.
Cyan print cartridge is a non-HP print cartridge
The cyan print-cartridge light is blinking and the Attention light is on. The printer
stops printing.
A non-Hewlett-Packard supply has been detected. Although HP supports
customer choice, HP cannot guarantee the quality or reliability of non-HP
supplies. Service or repairs required as a result of using a non-Hewlett-Packard
supply are not covered under the printer warranty.
If you want to use this non-HP print cartridge, press 
 (CANCEL JOB) to continue
printing.
To ensure full availability and/or accuracy of printing features (such as remaining
supply status), use genuine HP supplies.
If you believe you purchased a genuine HP supply, go to http://www.hp.com/go/
anticounterfeit.
Magenta print cartridge is a non-HP print cartridge
The magenta print-cartridge light is blinking and the Attention light is on. The
printer stops printing.
A non-Hewlett-Packard supply has been detected. Although HP supports
customer choice, HP cannot guarantee the quality or reliability of non-HP
supplies. Service or repairs required as a result of using a non-Hewlett-Packard
supply are not covered under the printer warranty.
If you want to use this non-HP print cartridge, press 
 (CANCEL JOB) to continue
printing.
To ensure full availability and/or accuracy of printing features (such as remaining
supply status), use genuine HP supplies.
If you believe you purchased a genuine HP supply, go to http://www.hp.com/go/
anticounterfeit.
94Chapter 7 Problem solvingENWW
 
						

							Light patternRecommended action
Yellow print cartridge is a non-HP print cartridge
The yellow print-cartridge light is blinking and the Attention light is on. The printer
stops printing.
A non-Hewlett-Packard supply has been detected. Although HP supports
customer choice, HP cannot guarantee the quality or reliability of non-HP
supplies. Service or repairs required as a result of using a non-Hewlett-Packard
supply are not covered under the printer warranty.
If you want to use this non-HP print cartridge, press 
 (CANCEL JOB) to continue
printing.
To ensure full availability and/or accuracy of printing features (such as remaining
supply status), use genuine HP supplies.
If you believe you purchased a genuine HP supply, go to http://www.hp.com/go/
anticounterfeit.
Imaging drum is a non-HP imaging drum
The imaging-drum light is blinking and the Attention light is on. The printer stops
printing.
A non-Hewlett-Packard supply has been detected. Although HP supports
customer choice, HP cannot guarantee the quality or reliability of non-HP
supplies. Service or repairs required as a result of using a non-Hewlett-Packard
supply are not covered under the printer warranty.
If you want to use this non-HP print cartridge, press 
 (CANCEL JOB) to continue
printing.
To ensure full availability and/or accuracy of printing features (such as remaining
supply status), use genuine HP supplies.
If you believe you purchased a genuine HP supply, go to http://www.hp.com/go/
anticounterfeit.
Printer Status lights
The following section describes the meaning of the light patterns in the Printer Status area.
Information about the printer status also appears in the HP Toolbox (For more information,
see 
HP Toolbox.)
Light patternError and recommended action
All control panel lights cyclingStartup
All control panel lights cycle one after another. Pressing buttons has no effect
until the printer is in the Ready state.
ENWW Resolving the control panel messages95
 
						

							Light patternError and recommended action
Ready
The Ready (green) light is on and the printer is ready to print. No action is
needed. Pressing 
 (GO) prints a Demo page.
Pressing 
 (GO) and  (CANCEL JOB) simultaneously prints a Configuration
page and a Supplies Status page, and also an HP Jetdirect page if an HP
Jetdirect print server is installed.
Processing
The Ready light is blinking. The printer is receiving or processing data.
Pressing 
 (CANCEL JOB) cancels the current job. One or two pages might print
as the printer clears the print job. The printer returns to the Ready state (Ready
light on) after the job has been canceled.
Attention error
The Attention light is blinking in these situations:
●The top cover is open.
●The printer is out of print media.
●The printer has a jam.
For the first cause, close the top cover. For the second cause, load print media.
For the last cause, open and close the top cover after you resolve the problem.
If the problem is not resolved, the Attention light continues to blink.
Interaction state
The Go light is blinking. The top cover has been opened and then closed, or you
pressed 
 (ROTATE CAROUSEL). Pressing  (GO) returns the printer to the
Ready state. If you do not press 
 (GO), the printer automatically returns to
the Ready state on its own. Pressing 
 (ROTATE CAROUSEL) brings another print
cartridge to the top position.
96Chapter 7 Problem solvingENWW
 
						

							Light patternError and recommended action
Attention with Ability to Continue
The Attention light is blinking and the Go light is on. The printer stops printing.
The message appears in these situations:
●Manual feed with pause. Someone sent a manual feed job and the printer
is waiting for the special print media. Load print media into tray 1, and if the
printer does not begin printing after the pages are reloaded, press 
 (GO).
Or, just press 
 (GO) to try to print from another tray.
●Manual two-sided printing. The printer has finished printing the first side
of a manual duplex job, and the printer is waiting for someone to reload the
pages so it can print the second side. Press 
 (GO) to continue printing.
●Paper out in the selected tray. Someone is trying to print by Source (tray)
and no print media is in the selected tray. Add print media to that tray to
print from it. Or, press 
 (GO) to try to print from another tray. The printer
continues printing.
●Print media is the wrong size. The media type does not match the print
media that is in the tray. Load the correct size and press 
 (GO). The
printer continues printing.
●
Continuable state. Press 
 (GO) for the printer to attempt to recover
from the error and print whatever data it can. If successful, the printer
completes the job while the Ready light blinks. If unsuccessful, the
Attention with Ability to Continue message persists. Press 
 (CANCEL JOB)
to cancel the print job. If the problem has been resolved, the printer returns
to the Ready state (Ready light on).
Accessory error
The Attention light, Ready light, and Go light are blinking. The printer stops
printing. An error has occurred with either the HP Jetdirect print server or an
installed DIMM. Pressing any button has no effect.
Press and hold 
 (GO) to see a secondary light pattern. (See Secondary light
patterns for Printer Status lights.)
Service error
The Attention light, Ready light, and Go light are on. The printer stops printing.
Pressing any button has no effect. Perform these steps:
●Turn the printer off and then on. If the problem persists, leave the printer off
for 15 minutes to reset the printer.
●If the printer is connected to a power strip or surge protector, disconnect it
and connect the power cable directly to a working wall outlet.
●If the problem continues, contact HP Customer Care. See 
HP customer
care or the support flyer that came in the printer box.
ENWW Resolving the control panel messages97
 
						

							Secondary light patterns for Printer Status lights
This section describes the secondary light patterns that you can display when you
experience an Accessory error. Secondary light patterns provide more information about the
specific type of error that occurred. To understand the secondary light pattern, perform one
of these steps:
●
Press and hold 
 (GO) . When the secondary light pattern appears, use this section to
identify the associated error. When you release the buttons, the light pattern for the
original error appears again.
●View the HP Toolbox, which provides a text message that corresponds to the error and
its secondary light pattern.
Secondary light patterns for Accessory errors
This section describes the secondary light patterns that you can view when you experience
an Accessory error (Attention light, Ready light, and Go light are blinking).
To see the secondary light pattern, press and hold 
 (GO).
Secondary light patterns for Accessory errors
53.x1.zz Printer (DIMM Slot 1) error 
The Go light is on. There is a problem with the DIMM in this DIMM slot.
CAUTION
You must turn off the printer before inserting or removing DIMMs to avoid
damaging them.
●Remove the DIMM and reinstall it to ensure that it is correctly installed.
●Ensure that you are using a supported DIMM. See 
Accessories and ordering
information.
●Move the DIMM to a different DIMM slot. If the DIMM works in a different
slot, then DIMM slot 1 is malfunctioning. See 
HP customer care or the
support flyer that came in the printer box.
●To continue printing, remove the DIMM from DIMM slot 1.
98Chapter 7 Problem solvingENWW
 
						

							Clearing jams
Occasionally, paper or other print media can become jammed during a print job. Some
causes include the following events:
●The input trays are loaded improperly or overfilled.
●Tray 2 or optional tray 3 is removed during a print job.
●The top cover is opened during a print job.
●Too many sheets accumulated in an output area or sheets blocked an output area.
●The print media that is being used does not meet HP specifications. See 
Print-media
specifications.
●The environment in which the print media was stored is too humid or too dry. See 
Print-
media specifications.
Where to look for jams
Jams can occur in these locations:
●Inside the printer. See 
To clear jams from inside the printer.
●In input areas. See 
To clear jams from input areas.
●In output areas. See 
To clear jams from output areas.
Find and remove the jam by using the instructions on the following pages. If the location of
the jam is not obvious, look first inside the printer.
Loose toner might remain in the printer after a jam. This problem should resolve itself after a
few sheets have been printed. See 
Loose toner.
To clear jams from inside the printer
CAUTIONJams in this area might result in loose toner on the page. If you get toner on your clothes or
hands, wash them in cold water. (Hot water will set the toner into the fabric.)
1. Open the top cover.
ENWWClearing jams99
 
						

							2. Remove the imaging drum by pushing it away from you and lifting it out of the printer.
You cannot reach jams by removing the print cartridges.
3. Complete one of these steps:
●If the leading edge of the print media is visible, carefully and slowly pull the print
media out of the printer.
●If the print media is too difficult to remove, remove the jam as described in 
To clear
jams from output areas.
4. After the jam has been removed, replace the imaging drum and close the top cover.
5.
Press  (GO) if the Go light is blinking. If the Attention light continues blinking, then
another jam is present. See 
To clear jams from input areas and To clear jams from
output areas.
To clear jams from input areas
1. Open tray 2 or optional tray 3 to expose the jam.
100Chapter 7 Problem solvingENWW