86.01 refers to carrage movement. Possible causes are obviously a jammed piece of paper preventing the head moving, could be (most likley) the belt needs replacing, or a dirty encoder strip. If you have been picking up little bits of reddish coloured rubber/dust on the bed or on your prints then your belt is perished and needs replacing. This refers to the DJ500 & T610.If you need further help please let me know.
Regards
Dave
SOURCE: i keep getting a problem error 86:01
In addition to this, the so called encoder strip may be dirty and needs cleaning. The encoder strip has many tiny lines on it, that the carriage sensor counts to determine its location in the printer environment. If this strip gets dirty, the carriage sensor will read several lines as one and in the end it will try to go past the carriage path; when obstructed it perceives this as a paper jam.
The encoder strip is located just behind the slider rod, the shiny rod that guides the carriage back and forth. The encoder strip should be cleaned with a lint-free cloth wetted with clean and luke-warm water (no water allowed to drip into the printer!). Be careful not to pull hard on the encder strip, it can VERY easilly break or jump off its attachment points!
First gently slide the carriage over to the left and clean the right part of the encoder strip, then slide the carriage over to the right and continue with the left side of the strip. Note: Always clean FROM the right side to the left, since the strip is attached to a hardpoint on the right side of the printer and to a leaf spring on the left side. According to Murphy's Law, pulling on the leaf spring WILL make the encoder strip jump off the hardpoint hook on the right side, causing a mess to get it back! (not supported...)
But in many cases this solves the 86.01 error message, hope it does this time as well.
//Al
SOURCE: opa boa tarde tenho um
Suggestible for tech guys: Star wheel motor faulty,( to remove star wheel unit open left cover,formatter,power module,spitton)Normally most of the cases motor wont go gear unit pensions breakage observed mostly, replace star wheel motor unit or if you are tech guy you can make alteration see the snap shot how pinion got breakage..Find out metal pinion suitable for the same and fix it properly. 
If its look like difficulty, replace star wheel unit..
SOURCE: error 86:01
I just answered this for someone else but did not look at the name of the person asking the question.
Here is a cut and paste of what I put for the other simalar question.
There is a posting of this on a website. I will give you the link below.
Basically it means that it is dirty or something is keeping it from moving back and forth. Could be old dry ink, stuck paper, or maybe you can clean the Carriage Rod with Alcohol. The Carriage rod is the shiny rod that goes from one side of the printer to the other. There are more tips on this link. Good Luck
http://www.computercarefiles.com/TWI_Docs/bpp90131/default.html
If you need further help, reach me via phone at https://www.6ya.com/expert/hugo_f827544e52871d36
SOURCE: im getting an error 47:01
Hi,
Welcome to Fixya Support
I am Michelle, and i will be assisting you regarding the issue
please take out the print cartridge
wait for the insert cartridge message to appear
unplug the power cord
wait for 2-3 minutes
plug the power cord back in
turn the unit on and reinsert the cartridiges
check for functionality
SOURCE: I had a paper jam
86 errors are usually generated when the carridge assembly cannot move all the way from left to right. Open the top door and check on both ends to ensure that a small piece of paper is not jammed there. It does not take much to cause this error. Also make sure that the print head retainer is seated properly as I have had that issue generate this error.
Testimonial: "Thank you!! It was the print head. All is fine now. Thanks again."
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HP Designjet T610 86.01 (possible paper jam) error or LCD. Checked paper path and cannot find any paper jams. Looked on HP support site and they don't list any 86.01 error codes.
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