Get a large black line on the scans

Clean the slit glass under the document feeder. Lift the feeder and find the thin piece of glass on either the left or right side and give it a good cleaning - you marks will likely go away.



Here is a how-to for removing lines from Sharp copiers.

How To Remove Lines from copies prints on Sharp copier

you can probably find it on ebay

The small black tank is called "Photo Black Ink Cartridge" and is usually only sed when printing color pages or photos. There is no way to bypass that. Use the ********* ink since it is a cheaper cartridge judging by volume. Sets can be purchased on ebay for very low price. Link below:
7 BLACK Printer Ink with chip fits Canon PGI 5 MP600 MP800 MP830 MX850 eBay

If you need further help, I’m available over the phone at https://www.6ya.com/expert/alex_22751bbefa74c3d0

Hi there, Best thing to do is buy a Haynes or Clinton's repair shop manual at your local AP store for your particular vehicle. Then read up on it in the trouble shooting section or the step by step RR section. You can purchase these at your local Auto Parts store or buy them on line at ebay burdfrenzy

Have you tried cleaning the document feeders Scan Glass? (small glass under doc feeder ~ 1" by 9") Most times there is dirt spot on this glass, causing a shadow on scans and copies.
Try copying from the large glass by lifting doc feeder / platen cover and manually placing original. If no line copying or scanning manually from large glass, then small scan glass is deffenitely the culprit. Hope this helps.

the Highside is located in the front passanger side corner, as you have probably seen. the low sde is located in the rear passanger corner, down low.

Stepper Motor Failures
Within the first 6 months of purchase I had to return the scanner twice to replace the stepper motor. The symptoms of stepper motor failure are a loud grinding noise during scanning followed by the enlightening message:
"The scanner has reported a hardware error. The present function cannot be continued. Sense: 0x04620000"

service required to fix stepper motor

I have the same problem (on XP, Nikon Scan 3.1.2) ... IF I turn the scanner on before the computer (or turn the scanner on and then reboot) then Nikon Scan recognizes it. Can't say I'm happy with the solution, but it works consistently for me.

Here's what you need to do (carefully!!):

www.vad1.com/photo/dirty-scanner/ls2000-cleaning/

does the nikon scan sofware recognise the scanner ?