Top 10 HP Officejet Pro L7590 All-in-One InkJet Printer Questions & Answers

Found on HP page:

Open the following ports on the firewall utility by following the instructions provided by the manufacturer: UDP ports: 161, 427 and 137
TCP ports: 9220, 9500 and 9290

I allow these ports in my firewall (router firewall) and it works now.

Source:
http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00897551&jumpid=ot_recdoc/c00503569/en_us/c00897551/loc:3&custom_solutionid=rd_c00503569&lc=en&dlc=en&cc=us&product=3643612

Cheers

Marek

Turn off the device after removing the printhead After removing the printhead, turn off the device, wait about 20 seconds, and turn it on again without the printhead installed. After it has restarted, reinsert the printhead.

it will go through this long routine of perhaps 20 min or so. after its compleate it should print great.

Pull out the printhead from the computer and check the date under "warranty ends" If the warranty period did not lapse, call HP technical support and tell them about the problem. They will replace the printhead for free. I have gone through 3 black/yellow printheads and I received the replacement printheads via FedEx within 1-2 days. They will send you a pre-paid envelope to return via U.S. Postal Service via US Postal Service.

If the Warranty date on the printhead expired, then you may have to come out of pocket to replace the printhead since HP will argue that they are not obligated to replace the printhead since the manufacturer warranty lapsed.

If this is the case, check to see when you purchased the printer. If the purchase was within a year, the retailer (i.e. Best Buy) is on the hook since there is a 1 year implied warranty on products such as printers, regardless of whether the expiration date on the HP printhead expired.

Hope this helps

Under the cartridge is a black like pump - on a new cartridge this is hard and rests firmly on an area inside your printer. As you print, the pump becomes softer - this is how the printer determines it is empty. Once refilled, the pump does not get back to the original state. Open the bottom of the cartridge and put a firm solid piece of folded paper in there - make sure it is steady and re-close cartridge. It will now read as full but may also show full - judge ink levels by the quality of print. Also make sure chip has not expired.

Hi
Check the following
--Check the paper in the ADF (automatic document feeder)
--Make sure the ADF pick assembly is in good working condition
--Remove the document feeder and open the ADF cover.
--While lifting the blue-green lever, carefully rotate the pick assembly toward the open ADF cover until it stops.
--Make sure the bottom roller is held firmly in place by the two-catch, which is located to the left and the right of the roller.
--Clean the rollers and separator pad

Solution
Follow these steps in the order presented to resolve the issue.
NOTE: If error messages also display on the computer, clear the error messages after each of the following steps. You might have to delete pending print jobs from the print queue on the computer to clear the error messages.

Step one: Perform a power reset
Follow these steps to reset the product. Make sure you connect the product directly to a wall outlet and not a surge protector or power strip.

Press the Power button ( ) to turn off the product.
NOTE: The product might not turn off after pressing the Power button. Continue to the next step regardless.
Disconnect the power cord from the rear of the product.
Unplug the power cord from the electrical outlet.
Wait 30 seconds.
Replug the power cord into the electrical outlet.
Reconnect the power cord to the rear of the product.
Press the Power button ( ) to turn on the product.
If these steps resolved the issue , there is no need to continue troubleshooting.
If the issue persists , see the next step.
Step two: Clean the electrical contacts on the printhead and inside the product
The ink nozzles on the printheads might clog if you expose them to air for more than a few minutes. The ink nozzles also might clog if you do not use the product for long periods of time. Follow these steps to clean the electrical contacts on the printheads.
CAUTION: Follow these steps carefully to avoid damaging the sensitive electrical components.
Make sure that the product is turned on.
Open the top cover of the product.
Press and hold the OK button for five seconds. The carriage moves to the left side of the product. Release the OK button.
Wait until the carriage is idle and silent.
Unplug the product power cord from the electrical outlet.
NOTE: Do not turn the product off by pressing the Power button ( ). This causes the carriage to move out of reach.
Lift the printhead latch.


Lift the handle on the printhead that the error message indicates is missing or damaged, and then pull the printhead out of its slot.

Use a dry, soft, lint-free cloth to remove any ink from the electrical contacts on the printhead.
CAUTION: Wipe only the electrical contacts. Wiping the ink nozzles, located on the underside of the printhead, can damage the printhead.Do not touch the nozzles. Doing so permanently damages the ink nozzles, and the ink stains clothing.
Figure 3: Electrical contacts and ink nozzles

1 - Electrical contacts
2 - Ink nozzles
Wipe the electrical contacts with the swab until no ink residue remains.
Wipe the electrical contacts with a fresh cloth to dry them and remove lint.
After the electrical contacts on the printhead are clean and dry, place the printhead on a sheet of paper or a paper towel. Make sure that the ink nozzles face up and do not touch the paper.

1. Use a fresh, dry, soft, lint-free cloth to clean the electrical contacts inside the product. Figure 4: Clean the electrical contacts inside the product
   
2. Allow at least five minutes for the contacts to dry. Check the contacts for lint or debris, and then dry or clean the contacts again if needed.
3. Plug the product power cord into the electrical outlet.
4. Press the Power button ) to turn on the product. 'Printhead missing or damaged, replace the printhead' displays on the control panel.
5. Insert the printhead into its color-coded slot. Press down firmly on the printhead to make sure the electrical contacts touch.
6. Pull the printhead latch all the way forward, and then press down to engage the latch. If the error message indicates that both printheads are missing or damaged, repeat the steps in this procedure to clean the other printhead.
7. Close the top cover of the product. The product restarts and then prints an alignment page.

These instructions will fix the majority of scanner problems and networking problems using ethernet:

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01849855&lc=en&dlc=ro&cc=ro&product=3643612&rule=4124&lang=ro

The key is to assign a static ip address for the printer. The install problems of trying to get the HP printer to be found will go away. You can then use the scanner. Also...it is crucial that when connecting other laptop's and PC's on the same network that you use the hp printer'rs host name to find the printer on the network. I find that the IP address can and usually fails to find the hp on the network. Mostly likely you cannot search the network for a hp printer until you go the route of find the hp network printer with the host name of the printer. You will also need your install disk when installing on other networl laptop's and PC's since windows xp and Vista machines don't have the drivers in the list. You will need to point the add printer gui driver to the disk and look for autorun.inf
file. After selecting that file...you can then see your drivers.

The PDF File Type Is Not an Option When Scanning from HP Solution Center for HP Multifunction Printers When Using Windows
This document pertains to all multifunction printers with HP Solution Center software connected to a Windows computer.
When you scan from HP Solution Center in Windows, the PDF file type is not available.

Hi,

Every cartridge will have its own ID and Expiry date, please check the Cartridge expiry date, if its really expired then printer will reject it even-though the cartridge is full.

We cannot bypass cartridge errors for single cartridge in INK-JET printer, because they work in TIJ technology (Thermal Ink Jet) which needs all cartridges to be functional unlike Laser-jet printers.

Regards
Riztech

How do you know it's false? a small piece of paper can still sit in one of jam sensors causing that.