Hi, Mi HP DesignJet 500 does not work. At first the error were the printheads, it said Error Select Replace Printheads and the black one was marked, but it was stocked to changed them, so we turn it off. Weeks later we continue turning it on and off and the error code changed 3 times this were the error codes 81:01, 86:01 and 79:04. The 3 codes appear one at a time every time we turn it on. Can somebody help me??
79:04: Check the usage and expiry dates on the printheads to start with. Have you refilled them with third-party ink? Even if you have before and haven't gotten this message, your printer might have just picked up on it. Particularily, if you have recently done a firmware upgrade.
Try taking out your printheads and see if it boots up. If it does, then there is a good chance that it's a printhead related issue. Once again, check the expiry dates.
If the error persists, try to re-seat your formatter if you have one.
Try restarting the printer with no printheads or cartridges or media and insert them one by one.
If the error comes up with one specific printhead or cartridge, you may want to replace it, expired or not. And replace it with an HP product designed for your specific printer.
Damage done by third-party products will not be covered by original warranty, or extended.
Final suggestion, is look at the conteacts on the back of the printheads. Are they dirty with ink or grime? What about the contacts in the printer. If they are, I would suggest using a SLIGHTLY damp coffee filter and gently wiping up and down until they are clean. DO NOT wipe horizontally or in circles. It may cause scratches to the contacts which could further damage them. Wipe them vertically with a DRY coffee filter, or allow them to completely air dry before re-inserting them. Before you re-insert them, reboot the printer with nothing in it, and insert them one by one.
For any further assistance, I suggest phoning HP Technical Support.
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The carriage does not accept one or more of the printheads. Typical causes are dirty contacts on the printheads or carriage, defective printhead(s), or a defective carriage.
If parts are replaced or fixed in any of the steps listed below, attempt to verify printer functionality by turning the printer on and printing internal test prints. If functionality is verified, no additional parts should be replaced.
Turn the printer on.
Allow printer to complete initialization.
With the printhead icon highlighted, press ENTER.
Select ReplacePrintheads and press ENTER.
If the message "Printheads still functional" appears, select Yes to continue testing the printheads.
Open the top cover.
Open the carriage cover and remove all of the printheads.
Turn the printer off.
Clean the electrical contacts on the carriage and the printheads using a lint-free cloth dampened with water.
(for this step I suggest using the erraser on the back of a regular pencil instead of a cloth and water)
Allow the contacts to dry.
Reinstall the printheads and close the carriage cover.
Close the top cover.
Turn the printer on and attempt to verify functionality, as instructed in Step 19.
If the error reappears, replace the affected printhead(s).
NOTE: If the printhead error icon is a question mark, each printhead will have to be tested separately, as the printer is not sure which printhead is causing the problem.
Following replacement of the suspect printhead(s), attempt to verify functionality (Step 19).
Service Station failure. The possible cause could be:
The steps counted by the Service Station motor are not consistent with the expected length of the current movement. The Aerosol Fan has reached its maximum current limit. The Service Station motor has shutdown because of blockage.
Try the following:
Remove ALL the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly. Replace ALL the Printheads. Replace the Service Station/Aerosol Fan Assembly
Problem Description: One of the Printheads has an Internal Electrical Problem. Corrective Action: Try the following: n Remove all the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly (Refer to Chapter 2). n Perform the Electronic Systems Test þ Page 4-5. n Make sure that the Trailing Cable is connected correctly. n Replace the Trailing Cable þ Page 8-39. n Replace the Carriage Assembly þ Page 8-44. n If the error code continues, replace the Electronics Module þ Page 8-25. WARNING Only replace one component at a time and check if the error has gone before replacing another component. Using this procedure you will be able to determine exactly which component failed.
Problem Description: Carriage-Axis shutdown. Corrective Action: If this error code appeared but was NOT caused by a paper jam, then try the following: 1) Too much friction in the Slider Rod. Enter the Printer Information utility and check the Scan-Axis usage. If the percentage is close to 100%, then lubricate the Slider Rod. 2) The Carriage is bumping into the Service Station. If the carriage is stuck at the right hand side of the Printer and cannot be moved out to the center of the Print Platen it is because the Service Station cannot uncap the Printheads. In this case replace the Service Station/Aerosol Fan Assembly 3) Perform the Carriage Movement test
that error show a problem with the pintheads Remove ALL the Printheads and clean the flex contacts on the Printheads and in the Carriage Assembly, if that dont solve the problem change printheads, if after that have the same problem call HP, was a hardware error.
Turn the printer on.
Following initialization, use the Down Arrow key to scroll to the Ink system menu icon and press Enter.
NOTE:If the error code appears during initialization press the Enter key to allow printer to complete the rest of the initialization process.
Scroll to Replace Printheads and press Enter. The printer should now move the carriage to an accessible position.
Open the top cover. Remove all four printheads.
Turn the printer off using the main power switch located on the back of the printer.
Turn the printer on.
Following initialization, insert one printhead at a time, starting with the black printhead.
Determine whether or not the printer accepts the printhead.
Turn the printer off and repeat steps for each of the printhead.
Replace the failed printhead.
That error indicates that the drop detector is not working. If a Print Quality test shows that the pens are working and nothing is blocking the inside of the drop detector, perform the Service Station calibration. If the error doesn't clear, then replace the detector assembly.