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That code means a Pre-Registration NIP has failed.
This can happen owing to a paper jam, or debris loose or jammed or stuck in the paper path.
That will probably require a service call, if no obstruction nor abnormality can be found in the paper path anywhere, upon examination.
I would advise you to do something simple before being concerned to replace anything:
- open the paper path, examine, if there's lint or dust, sweep it up with a clean dry cloth (don't wipe the greenish-metallic drum surface, nor the developer belt! they can be damaged by being touched carelessly or wiped off.)
As for a service manual for your model of Xerox Digital Press... I suspect there aren't any available for this model. A search reveals very little... just this, which looks dubious, since it is obviously a 'click me' ad, and those are sometimes up to no good, or offer nothing real but banners and banners and downloads and downloads and basically nothing good. Proceed with caution if you proceed with this: