Consider the following printer:
- HP OfficeJet Pro 8000 (A809n)
- with duplex unit
- no modifications from factory (ie: no dispenser nor bulk installation)
- no major problems during its lifetime (nor jamming issues)
Then, suddenly (24hrs ago), it started to jam every time it picks-up a paper. Video 1 exemplifies this malfunction, briefly:
- cancel button pressed for 3 secs in order to print a test page
- paper jams just after the main tray (not even entering the duplex unit nor arriving at the printhead)
- this process can go on forever
Unfortunately, HP no longer provide technical assistance for such model and alternative repair shops are hesitating to accept this service due the lack of spare parts. Therefore, find someone to repair it is not an option.
- What is the cause of such failure?
- Is it possible to solve it?
- In technical terms, how to fix this printer?
- Brief explanation of video 2: Without the duplex, the pick-up rollers correctly move the paper from the main tray to the rear part. Additionally, if you insert the paper directly from the rear (caution: this can damage your printer), the printing will continue just fine.
- The pick-up rollers were already cleaned with distilled water (according the procedures of HP Printer Support), however there was no improvement and the malfunction still persist.