My xerox dccs 50 needs setting for even printing ... Plz help.

SOURCE: ROS Trouble with Xerox DouPrint N17

The ROS is the laser. Believe me you can replace the machine for less than the cost of a laser. The Polygon motor is most likely bad in the laser. I would guess in the $500 range for the laser

SOURCE: Black ink is faint

First I would suggest performing any head alignment functions with your printer's menu to be sure you have the stepper motor feed adjusted properly. Use the paper you are currently printing on for this procedure so that the thickness of that paper is factored in.
If you stil see the banding after doing this, you can use the Advanced Media Control button under Printer Settings in ColorBurst to fine-tune the paper feed adjustment. Print out the "Media Advance.tif" target (located in the ColorBurst/images & Targets folder) to use as a guide. For white bands, you'll need to enter a negative number (to shorten the paper feed).

SOURCE: Centreware password on Xerox 7335

I called Xerox and they had to send a tech to reset the password back to factory. The factory set is username x-admin and password 11111.

SOURCE: 2 sided printing problem

Go to the printer in your printer folder in control panel. Right click on it and select properties. Then select the last tab named "Printer" and click "Get information from printer button". Hope it helps you.. works for me.

SOURCE: Yellow light on Toner light on) Cannot print a thing

take out the toner.. at the left side of the toner, there is a level, unscrew the 3 screws and turn the level to the other side, this will reset your toner.
make sure the printer is on when you put back the toner.