What does a red X mean when a cartridge is inserted?

The blinking red light on your Nintendo NES game system typically indicates a connection or cartridge issue. It could mean that the cartridge isn't inserted properly or is dirty. Try removing the cartridge, blowing on it to remove dust, and reinserting it firmly. If the problem persists, you may want to clean the connectors on both the cartridge and the NES system with a soft, clean cloth or cleaning solution specifically designed for this purpose. If that doesn't resolve the issue, there might be a more serious problem with the console, and you may need to consult a technician for repairs.

Clean cartridge with sof tissue and alcohol and insert it again, carefully.
btw: are you sure ink is NEW and not a refill? Refills should be good too but sometimes they fail.

It mean when your toner is near empty,then red light flashing.tow light is fixed or red mean toner cartridge is empty.must be replace toner cartridge.You buy a new cartridge and put in your printer then printer is OK.
you can also get better idea please read printer user guide.

keenepadgl, "Contact service engineer" for a C60 used to be all you could do. Now you can go to SSC Service Utility and download it. But the red light blinking (if that is all that is happening) simply means you have a ink cartridge that is low but not empty. If the red light stays on, then it means a ink cartridge is empty. By downloading SSC Service Utility you can solve about any problem you have with a C60. That's what the "Service Engineers" use. Check out the protection counter reset in SSC, that is the main reason people had to send their C60s to have serviced., and what service would do is press the reset button in SSC program. NOTE: I would go to inkmizer and get some cleaning fluid instead of nail varnish remover.

A red Status light means 'paper jam'. A red light corresponding to one or more of the toner cartridges means empty cartridge. A flashing red light corresponding to one or more toner cartridges means low toner.

If the ink light is on steady red, that means the black or color ink cartridge is nearly empty. Obtain a replacement black or color ink cartridge. To know which cartridge is out of ink, check the ink levels using EPSON Status Monitor 3 (Windows) or EPSON Status Monitor (Macintosh). If you just replaced the cartridges before you got the error light, that means that the replacement cartridge is not recognized by your printer. Please reseat cartridges. Then turn the printer on and off. The cartridges maybe bad also.
If the paper light is on steady red, try to reload 10-20 sheets of regular paper into your printer. When printing on CD/DVD, CD/DVD tray is not inserted in the printer. Insert the CD/DVD tray in the printer and press the paper button.Could also be that the printer has loaded more than one sheet of paper at a time. Load paper in the sheet feeder, and then press the paper button to resume printing. If the CD/DVD guide is open, close the CD/DVD guide, load paper and then press the paper button.

dude..u didnt mention printer's make n model nyhow give a try to dis one..

Remove all the cartridges and the paper from the printer...Power off the printer...unplugg the power cable from the back of the printer...while printer is unplugged from the power..press n hold the power button for atleast 60 seconds then release it..open the back door of the printer and look for any paper jam...remove paper from behind (if any) and roll the rollers in upward direction from behind..close the back door and connect the power cable to the printer and power on the printer..Look for the cartridge slots and clean it wid a lynt free cloth and the copper contacts of the cartridges as well...then insert only one cartridge (black or color) and close the cartridge door and check for any blinking lights on the printer...similarily repeat it with the other cartridge..by this u wud get to know if any cartridge is faulty? If u get blinking lights on the printer ...that means there is some problem,,,
Once you see the steady green light on the power..it means the printer is ready..You can also print a test page..."Press n Hold the power button down...while holding the power button down...either press "Down Arrow button" 4 Times OR "Red X button once"...then release the Power button to print the test print..
If it prints ..u r the master !!!
Best of luck

Remember if there is any blinking light,,the printer wont prin..
if the light blinks around the drops..it means there is cartridge issue and you may even replace the cartridges..make sure u remove the pink tape carefully before inserting the cartridges.

ALL THE BEST

• When the battery cartridge is inserted, the charging light color will change from green to red and charging will begin.
The charging light will remain lit steadily during charging.
• One red charging light indicates charged condition in 0 – 80% and two red ones indicates 80 – 100%.
• With finish of charge, the charging lights will change from two red ones to two green ones.
• The charging time is as follows:
Battery B9017A, BH1220, BH1420, BH9020A: approx. 20 minutes.
Battery B2417, BH1233, BH1433, BH2420, BH9033A: approx. 30 minutes.
Battery B2430, BH2433: approx. 60 minutes.

remove the cartridge and reisert it .and for your knowledge that when you insert the cartridge you will hear a click that means the cartridge is fitted properly.if you do not hear a click that means the cartridge is not installed properly.

Red Light blinks when the ink cartridge is bad..
to check which one is bad..
take out all cartridges from the printer and clean the copper contact and the inner area of the cartridge slot with a lint-free cloth...
power off the printer and unplug the power cable from the printer..
press & hold the power button on the printer for 60 seconds..
connect the power cable and power on the printer..
insert any ONE cartridge and close the door..
similarly insert other cartridges one by one and close the door and check if the light blinks..
if it blinks ..it means the respective cartridge is bad and replace it..
if u have replaced all the cartridge..it might be possible that the cartridge sensor inside the printer have gone bad..
if this is the case so ..u might service the printer..
but I will suggest to go for a new printer as 7660 is quite an lod printer which hp launched in 2004 or 2005..
even if u have juz bought it ..it will be refurbished one..