How to Determine the Printer Total Page Count on a Dell 1815dn laser printer?

SOURCE: Dell 1815dn all-in-one-laser

There is a little tab that locks the scanner bar.
Open the flatbed cover, and you'll see it in the left corner closest to you.
To unlock it, reach your hand (palm up) into the area the the paper comes out in.
Slide the tab to the unlock position (you'll be able to see it through the flatbed area.
If you need a complete manual for the MFP, you can go to the Dell website, in the support area, and download a copy of it.

SOURCE: Misplaced User Manual - Dell 1815dn Laser MFP

drivers and software are here

http://support.dell.com/support/downloads/driverslist.aspx?c=us&l=en&s=gen&os=WLH&osl=en&catid=&impid=&SystemID=PRN_ALL_1815DN

manual is here

http://support.dell.com/support/edocs/systems/prn1815/en/index.htm

Robert

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SOURCE: How to determine printer page count

that model of HP printer did not have a page counter that could be printed

SOURCE: front door open message it won't print

There is a switch inside the front door that is not making contact when the door closes, making the printer think that the front door is open. The switch is recessed in the housing. Look for a plastic knob that protrudes from the front door that will mate with a hole in the frame. Inside this hole is the switch. Try activating the switch manually with a screwdriver to make sure the switch is functioning. If it is, you will need to take off the cover and reposition the switch forward. If it does not activate manually, the switch must be replaced.

SOURCE: scanner locked printer dell laser mfp 1815dn

The lock for the scanner is on the roof of the cavity where the printed paper comes out. Simply flip it to the other position and restart the printer.