Review on Enhanced Brother Monochrome Laser All-in-One Printer, MFC-L6700DW, Advanced Duplex, Wireless Networking & 70-Page ADF Capacity, Amazon Dash Replenishment Ready by Joseph Neal

I have an older Brother model and am quite happy with it but this is not. It continues to leave marks on all pages as we type. We thought the rollers were dirty so we cleaned them many times but to no avail. Also, the document feeder sometimes creases or tears pages, which is not normal as I pass original documents through it to make electronic copies. I only use Brother ink cartridges so that's not a problem. We can't figure out what the problem is. I got this for my office and need to replace it as it is not reliable or professional.