![]() These connections are routed through the fuser connectors and complete the fuser wrapping detection circuit. These contacts monitor the pressure roller bias connections between the fuser and the HVPS. The HVPS contacts on the HP 9000, labeled TB1009 and TB1010 can give false 13.20 jam errors. The event log might show some other jam indications that will be useful in troubleshooting the printer. Printing an error log will be helpful in diagnosing what the cause might be. ![]() Either a false jam ( no paper in the printer), or a real jam with pages throughout the printer. This will reset the guides to the correct position and prevent the paper from skewing and jamming from tray 4.Īnother very common error is the 13.20 jam indication. Remove the paper from tray 4 and move the front to back guides several times. Checking the tray 4 guides it appears they are set for the correct size. Trays 2 and 3 work just fine so now you know the duplexer is not the problem also. With further testing, using the built in diagnostics "paper path test" you find it only jams from tray 4. So having these guides set to the exact size is important, even when printing standard sizes of media.ġ3.12 Jam in duplexer error, opening the left door you find a jam in the duplexer, slightly skewed. The tray guides can adjust to print almost any size in the custom setting. The 9000 supports so many different sizes of printing media. Next check the paper pickup/feed rollers, they last quite a while and can be swapped from another tray for testing purposes. ![]() Remove the paper and check for any misloaded pages, bent corners folded under causing the stack to be uneven will most likely cause a skewing or false jam as it cannot pick the paper out of the tray. The first place to start is the input tray that is being used to print from.
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