Rear Door Open False Warning

[Andre_I]

Hi, my HP LaserJet Pro CP1025 printer stopped working with alarm Rear Door Open. Lid is closed firmely, optical sensor is on place and not damaged. I also measured pulses from that optocoupler with the Scope and could see signal surges from 0V to 3V when the rear lid pin goes into the sensor.

Could you please help with that issue.

Is there way to by-pass or disable Rear Door sensor phisically or with SW.

Thank you very much. 

Have a good day.

[DavidSMP]

Hi @Andre_I,

Thanks for stopping by the HP Support Forums.  After reading your post I see that you need assistance to try and clear a false" rear door is open" error message. It will be a delight to assist you here.:)

Superb analysis and brilliant diagnosis of the issue before posting. 🙂 Kudos to you on that score. 🙂

For better clarity and to assist you better I would require more information regarding this:

• Did this happen after a power outage or surge?
• Was there a paper jam anytime in the recent past before this happened?

 It looks like a hardware issue with the printer and it may need to be replaced. For now please perform these steps:

• Please perform all the relevant steps from this link: http://hp.care/2B6La5f to clear paper jam issues.
• Also try to the other steps other than the ones performed from the first link: http://hp.care/2B7IAMv to fix out of paper issues.
• Then check if the issue gets resolved.
• If the issue continues then contact HP phone support to get the printer replaced or upgraded as its hardware is faulty.
•  

HP Technical Support can be reached by clicking on the following link: http://hp.care/2r9wSvP

• Once the support page opens please select the country in which you're located. Next, enter your HP model number on the right.
• Next, choose the 'Contact Support' tab at the top and scroll down to the bottom of the 'HP Support- Contact' page to fill out the form provided with your contact information.
• Once completed click the 'Show Options' icon on the bottom right.
• Lastly, scroll down to the bottom of the page and select 'Get phone number.' A case number and phone number will now populate for you.

They will be happy to assist you immediately.

If the unit is under warranty, the manufacturer’s warranty should take care of it for you.

Please perform all these steps patiently as it is critical to resolving the issue. Going by your technical expertise and competence I am sure you will be able to perform these steps without breaking a sweat. 🙂

Let me know how it goes and you have a great day!

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.

Take care and have a blessed week ahead. 🙂

[Andre_I]

Hi, David!

Thanks for for advice, I went through the steps from the link and unfortunately it did not help.

Printer was also carefully disassembled to check visually that there is no any damage or paper jam. All seems ok.

 When Power button pressed, cartridge leds blink one by one for few seconds and then only warning light reamains blinking. During that period printer does not make any noise,like usually when it is initialaizing- carusel and trolley move and all that.  I wonder if that can be because of paper jam or door open..no initialaizing..?  May be there is any testing HP SW i could use?

Have a good day!

Thank you.

[DavidSMP · Accepted solution]

Hi @Andre_I,

I have reviewed the post. Thanks for the quick reply. Brilliant effort, great technical expertise and immaculate patience displayed to try and fix the issue. Kudos to you for a job well done. :)This is a hardware issue with the printer. There is no such software that can diagnose or correct the situation with the printer.

You might need to contact HP phone support in this regard to get the printer replaced. I honestly hope things work great for you.

Hope this helps. Let me know how it goes. To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help. If this helps, please mark this as “Accepted Solution” as it will help several others with the same issue to get it resolved without hassles.

Take care and have a blessed year ahead stay healthy and smile big. 🙂

Cheers!

[Andre_I]

Thanks for your time,David ! 

[DavidSMP]

HI @Andre_I,

I thank you greatly for accepting this as a solution. It indeed has been a genuine pleasure to share this platform with you. 🙂

To simply say thanks, please click the "Thumbs Up" button to give me a Kudos to appreciate my efforts to help.

Do have a splendid year ahead. 🙂

[Kelvinhenry]

Hi Community, I have the same problem of rear door open for the past one week now, please need help urgently.

LaserJet 100 color MFP M175a

[kevin-t]

Hello,

Thank you for posting in this thread. Unfortunately based on when the last response was made, I have closed this thread to help keep comments current and up to date. We recommend starting a new thread for your issue by clicking here.
To be more helpful with your post, you can add key information if you desire: 
1. Product Name and Number (please do not post Serial Number)
• Example: HP Pavilion DV2-1209AX or HP Deskjet 3000 Printer CH393A
2. Operating System installed (if applicable)
• Example: Windows XP, Windows Vista 32-bit, Windows 7 64-bit
3. Error message (if any)
• Example: ""Low disk space"" error in Windows
4. Any changes made to your system before the issue occurred
• Examples: Upgrading your Operating System or installing a new software; or installing new hardware like a printer, modem, or router.
If you have any other questions about posting in the community, please feel free to send me a private message!

Thank you