How can I tell how many prints have been done on my dell 3000cn printer

I replaced the magenta toner with a Dell magenta toner and after about 50 copies the machine is displaying "004-321 Restart Printer". I've done this numerous times and the message won't go away nor can I print.

check whether the cartage is fix well or the paper is far from the area from where the printer starts printing.

009-340 Error on the Dell Color Laser Printer 3000cn/3010cn/3100cn ...imaging drum cartridge. Turn the printer off using the power switch on the left side. Wait 10 seconds, turn the printer back on, and check if the error message...sensor solenoid nip. Turn the printer off using the power switch on the left... (English) 016-720 PCL Error on the Dell Color Laser Printer 3000cn/3010cn/3100cn ... Press Select ( ) to clear the error on the printer. Reset the printer NVRAM: Press Menu. Press the...and then press Select ( ). When Restart Printer appears, turn the printer off and then back on... (English)
KB Article How Do I Configure and Troubleshoot My Dell Color Laser Network Printer? - KB Article - 296059 ...Troubleshooting Guide for My Dell 3000cn-series / 3100cn Laser Printer ...available online for your Dell 3000cn/3100cn laser printer. The troubleshooting...printing, refer to the Dell Laser Printer 3000cn/3100cn Troubleshooting Guide... (English)

here is your user guide & owner's manual
http://support.dell.com/support/edocs/systems/3000cn/en/index.htm

Here are your drivers & patches
http://search.dell.com/results.aspx?c=us&l=en&s=bsd&cat=sup&cs=04&k=3000cn+printer&rpp=12&p=1&subcat=dyd&rf=all&nk=f&sort=K&ira=False&~srd=False&ipsys=False&advsrch=False&~ck=anav


Here is the PDF - look under "setting up for local printing" and "setting up for network printing"
http://support.dell.com/support/edocs/systems/3000cn/en/OM/3000cn_om_en.pdf

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located in your control center for the dell printer is an option to print in black and white onlhy. click that u should be able to print.:)

Don't take risk about your equipments. consult a enjineer.

Do the documents have even a little bit of color?

if not, try this. When printing a document, after you press print, select preferences of the printer and at the bottom there is an option for output color. change that to black. Hope that helps

Changed code for type of paper.

if the printer is setup for A4 paper , it maybe that your p/c prog is trying to print using letter size.
microsoft tends to default to US sizes wjich are letter.
if using word check page setup for paper size

This is usually related to the way the tray or trays are configured on the printer or the way the program from which your printing from is configured. If you are using ms office, as an example, if the instructions to the printer from the software (ms office) say to print this document to the Multi Purpose Feeder tray (MPF) using plain paper and there is no plain paper in the MPF, you will get this error. Conversersly, if the printer's MPF is configured to print only legal size paper, and the software you are using is sending a print job to the printer telling it to use letter in the MPF, you will get this error. Basically, the printer settings and the settings from the software must match in order for this error to not occur. The settings for the printer can be changed usinig the operators panel of the printer. Directions for this should be available in the users manual or from support.dell.com. The setings for the software shold be in the print properties/preferences of the software being used.