A: The maximum custom original size could be 307mm and 432 mm which is equivalent to 12inch by 17inch approximately.
A: The Velocity keys can be located on the operational panel and can be adjusted to a range between sixty pages per minute and one hundred and twenty pages per minute.
A: The 3400DNP should not be operated on paper that is smaller than 90 mm x 148 mm, or heavier than 209.3 g/m², or lighter than 47.1 g/m² and use of crudely cut or curled paper should be avoided as well.
A: Regarding double sided printing, the manual does not mention double sided printing and one has to look up in the operational section what print controls can be used.
A: If there Is a paper feeding error then you have to push the Master Eject Unit Open button to take out the ejected paper and ensure there are no blocks before proceeding.