Monday, December 21, 2015

HP color LaserJet 2550 printer Cold rest Paper jam Status light blinking and function test

HP 2550 color LaserJet

Clearing jams
Occasionally, paper or other print media can become jammed during a print job. Causes include the following:
# Input trays are loaded improperly or are overfilled.
# Media guides in the input trays are not set correctly.
# Optional tray 2 or optional tray 3 is removed during a print job.
# The top cover is opened during a print job.
# The tabs on the fuser are unlocked or the fuser is not seated correctly.
# Too many sheets have accumulated in an output area or blocked an output area.
# The media being used does not meet HP specifications. See the HP Color LaserJet 2550 Series Printer User Guide for information about print-media specifications.
# The environment in which the paper was stored is too humid or too dry. See the HP Color LaserJet 2550 Series Printer User Guide for information about print-media specifications.
# Non-HP supplies are installed in the printer.
Where to look for jams
Jams can occur in these locations:
# Inside the printer..
# In input areas.
# In 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..
To clear jams from inside the printer
CAUTION :Jams 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 sets toner into fabric.)
1. Open the top cover.
2. Remove the imaging drum by pushing it away from you and lifting it out of the printer.
Note :You cannot reach jams by removing the print cartridges.
3. Complete one of these steps:
# If the leading edge or the trailing edge of the print media is visible, carefully pull the sheet out of the printer.
# If the media is too difficult to remove, clear 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 is still 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 optional tray 2 or optional tray 3 to expose the jam.
2. Complete one of these steps:
# If the media has already partially entered the printer, see To clear jams from inside the printer.
# If the jam is only in the input tray, remove the jammed media by pulling it out by the visible edge. Realign all of the media in the tray and proceed to step 4.
3. If you could not remove the jammed media from inside the printer or by pulling it out of the tray, grasp the sheet from the outside of the printer and carefully pull it free.
4. Push the paper down to lock the metal lift plate into place and slide the tray back into the printer.
5.Open the top cover, close it again, and then press (Go) if the Go light is blinking. If the Attention light is still blinking, then another jam is present. See To clear jams from inside the printer and To clear jams from output areas.
To clear jams from output areas
CAUTION : Jams in these areas might result in loose toner on the page. If you get toner on your clothes or hands, wash them in cold water. (Hot water sets toner into fabric.)
1. Complete one of these steps:
# If the media is not almost completely visible from the top output bin, proceed to step 2.
# If the media is almost completely visible, pull it carefully out of the printer and proceed to step 9.
2. Open the rear output door.
3. If the leading edge of the media is visible from the rear opening, carefully pull it out.
4. If the jam is too far into the printer to remove, turn off the printer and disconnect the power cable.
CAUTION: Always turn off the printer and disconnect the power cable before you remove the fuser.
5. Rotate the locks on the fuser to the unlocked position.
6. Grasp the fuser handles and pull to remove the fuser from the printer.
WARNING! The parts on the internal surface of the fuser are very hot. To avoid burning yourself, do not touch those parts.
7. Press the green fuser-release levers to separate the fuser rollers, and then carefully remove any media from inside the fuser.
8. Using both hands, slowly and steadily remove any media from inside the printer. Then, carefully reinsert the fuser and secure the locks.
9. Reconnect the power cable and turn on the printer.
10. Open the top cover, close it again, and then press (Go) if the Go light is flashing. If the Attention light is still blinking, then there is another jam. See To clear jams from inside the printer and To clear jams from input areas.
Status light messages
The black-print-cartridge light is on.
The black print cartridge is low.
1. The printer continues to print without any action required until the print cartridge is empty.
2. Order a new print cartridge.
The cyan-print-cartridge light is on.
The cyan print cartridge is low.
1. The printer continues to print without any action required until the print cartridge is empty.
2. Order a new print cartridge.
The magenta-print-cartridge light is on.
The magenta print cartridge is low.
1. The printer continues to print without any action required until the print cartridge is empty.
2. Order a new print cartridge.
The yellow-print-cartridge light is on.
The yellow print cartridge is low.
1. The printer continues to print without any action required until the print cartridge is empty.
2. Order a new print cartridge.
The imaging-drum light is on.
The imaging drum is low.
1. The printer continues to print without any action required until the imaging drum fails.
2. Order a new imaging drum.
The black-print-cartridge light is blinking, and the printer stops printing.
The print cartridge is empty or missing (40208) or the E-label reader is faulty (10000). The printer cannot detect the print cartridge correctly.
1. Reinsert or replace the print cartridge.
2. If the print-cartridge light is still blinking but the Attention light is not on, turn the printer off and then back on.
3. If the problem persists, repeat steps 1 and 2 with black print cartridges until the error is resolved.
4. If the problem persists, replace the print-cartridge Elabel reader, which is located on the pressure assembly of the print-cartridge carousel.
The cyan-print-cartridge light is blinking, and the printer stops printing.
The print cartridge is empty or missing (40207) or the E-label reader is faulty (10001).
The printer cannot detect the print cartridge correctly.
1. Reinsert or replace the print cartridge.
2. If the print-cartridge light is still blinking but the Attention light is not on, turn the printer off and then back on.
3. If the problem persists, repeat steps 1 and 2 with cyan print cartridges until the error is resolved.
4. If the problem persists, replace the print-cartridge Elabel reader, which is located on the pressure assembly of the print-cartridge carousel.
The magenta-print-cartridge light is blinking, and the printer stops printing.
The print cartridge is empty or missing (40206) or the E-label reader is faulty (10002).
The printer cannot detect the print cartridge correctly.
1. Reinsert or replace the print cartridge.
2. If the print-cartridge light is still blinking but the Attention light is not on, turn the printer off and then back on.
3. If the problem persists, repeat steps 1 and 2 with magenta print cartridges until the error is resolved.
4. If the problem persists, replace the print-cartridge Elabel reader, which is located on the pressure assembly of the print-cartridge carousel.
The yellow-print-cartridge light is blinking, and the printer stops printing.
The print cartridge is empty or missing (40205) or the E-label reader is faulty (10003). The printer cannot detect the print cartridge correctly.
1. Reinsert or replace the print cartridge.
2. If the print-cartridge light is still blinking but the Attention light is not on, turn the printer off and then back on.
3. If the problem persists, repeat steps 1 and 2 with yellow print cartridges until the error is resolved.
4. If the problem persists, replace the print-cartridge Elabel reader, which is located on the pressure assembly of the print-cartridge carousel.
The four print-cartridge lights are blinking, and the printer stops printing.
The print cartridges are empty or missing.
The printer cannot detect the print cartridges correctly. The E-label reader might be faulty.
1. Replace any non-HP print cartridges with HP print cartridges.
2. Reinsert or replace the print cartridges.
3. If the print-cartridge lights are still blinking but the Attention light is not on, turn the printer off and then back on.
4. If the problem persists, repeat steps 1 through 3 with sets of print cartridges until the error is resolved.
5. If the problem persists, replace the print-cartridge Elabel reader, which is located on the pressure assembly of the print-cartridge carousel.
The imaging-drum light is blinking, and the printer stops printing.
The imaging drum is empty or missing or the E-label reader is faulty.
The printer cannot detect the imaging drum correctly.
1. Reinsert or replace the imaging drum.
2. If the imaging-drum light is still blinking but the Attention light is not on, turn the printer off and then back on.
3. If the problem persists, repeat steps 1 and 2 with imaging drums until the error is resolved.
4. If the problem persists, replace the imaging-drum Elabel reader (see E-label reader (for imaging-drum Elabels)).
Functional checks
An engine test can help to identify printing problems, and a paper-path check can help to identify problems in the paper path.
Engine test
The engine test is used to verify that the print engine is functioning correctly. The formatter is bypassed during an engine test, so the engine test is useful for isolating printer problems. Because the engine test prints horizontal lines along the entire printable area of a page, it is also useful for checking and adjusting registration.
Note The type of engine test and the input tray depend on the last print job. During the engine test, the printer pulls media from the input tray that was used for the last print job. The last print job also defines the type of engine test. If the last print job was a color print job, then a color engine test is performed. If the last print job was a black-only print job, then a blackonly engine test is performed.
Printing an engine test
The engine test switch is inside tray 1, on the left side, just below the front cover.
To print an engine test:
1. Turn off the printer.
2. Turn on the printer.
3. Open tray 1 and load paper.
4. Press the engine-test switch (shown below).
Note: The formatter must be connected to the ECU to perform an engine test. Otherwise, the printer does not print the engine test.

Performing a continuous self-test
1. Turn the printer off.
2. Press and hold (Go) Button.
3. Turn the printer on and continue to hold (Go) for at least 20 seconds, but fewer than 30 seconds.
Note: The Attention and Ready lights turn on during the continuous self-test.
4. Release (Go). The device lights begin cycling from front to back. The self-test process runs until the printer is in the Ready state.
5. To terminate the continuous self-test, press (Cancel Job).
Cold reset
A cold reset sets most, but not all, default variables stored in NVRAM back to factory default values. It typically does not reset the page count, paper tray sizes, localization language, or formatter number.
To perform a cold reset
1. Turn the printer off.
2. Press and hold (Go).
3. Turn the printer on and continue to hold (Go) for at least 10 seconds, but for fewer than 20 seconds.
Note The Attention light turns on during a cold reset.
4. Release (Go).
Note : If either the Go or Ready light turned off or no lights turned off before releasing (Go), then repeat steps 1 through 5.
5. The printer lights begin cycling from front to back. The cold-reset process runs until the printer is in the Ready state.
NVRAM initializer
NVRAM initializer sets all default variables stored in NVRAM back to factory default values or to a default ROM value, depending on the variable. It also performs a system reset. NVRAM initializer resets the following:
# All menu settings to factory default values
# Factory settings such as formatter number, page counts, and factory paper settings
Note: Jetdirect NVRAM is not reset by performing an NVRAM initialization. To perform an NVRAM initialization
Note: If possible, print a Configuration page before performing an NVRAM initialization. The Configuration page contains the information needed to restore the printer data.
1. Turn the printer off.
2. Press and hold (Go).
3. Turn the printer on and continue to hold (Go) for at least 30 seconds, but fewer than 40 seconds.
4. Release (Go).
Note: The Attention, Ready, and Go lights are on during an NVRAM initialization.
5. The device lights will begin cycling from front to back. The NVRAM-initialization process runs until the printer is in the Ready state.
Error report
Use the following steps to print an error report:
1. Turn the printer off.
2. Press and hold (Go).
3. Turn the printer on and continue to hold (Go) for at least 40 seconds, but fewer than 50 seconds.
4. Release (Go).
Note: The Attention light turns off during the error report process. The printer prints an error report.
Super NVRAM initialization
Use the following steps to perform a super NVRAM initialization:
1. Turn off the printer.
2. Press and hold (Go).
3. Turn the printer on and continue to hold (Go) for at least 50 seconds.
4. Release (Go)
Note: The Ready light turns on during a super NVRAM initialization.