How come the print is very light. I install new toner already.

Was the toner 3rd party???? if so go out buy a OEM Konicaminolta Image unit/toner

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/normanj_7893313f0751935f

Error Red On

• The cover is open. Close the cover.
• There is no paper in the tray. Load paper in the tray.
• The printer has stopped printing due to a major error.
• The toner cartridge is not installed. Install the toner cartridge.
• Your system has some problems. If this problem occurs, contact your service representative.
• The toner is totally exhausted. Remove the old toner cartridge and install a new one.

Error Red Blinking

• A minor error is occurring and the printer is waiting for the error to be cleared. When the problem is cleared, the printer resumes printing.
• The toner cartridge is low. Order a new toner cartridge. You can temporarily improve print quality by redistributing the toner.

Are you sure it was a full NEW toner cartridge?? Not an old one you had lying around.
If it was a new one the next question line goes as follows.... the machine will say in the display to "Rplace toner soon"...that dosn't mean its empty and to replace it..that means itsLOW and you should have a new toner cartridge "on-hand" because it will soon stop printing and say "REPLACE TONER". At that time the toner cartridge should be replaced, when it is installed a "fuse" on the cartridge blows and resets the toner light on the display. If you installed the toner cartridge when the display was saying "replace toner soon" you have blown the fuse in the new cartridge, now the machine has run about another 100 copies and says "replace toner"....but you now can't reset the light because the fuse is already blown because you may have replaced the cartridge too early!!! WHAT CAN YOU DO if that is the case...you can replace the fuse on the cartridge..its pretty easy to see, just replace it with another mini-fuse of the same rating written on the existing fuse..then put the cartridge in again..the fuse will blow, reset the light and away you will go. When all else fails read the operators manual.

Press the green "play" button and it will print out a stats page telling you all the information about the printer, including print count. There is no way to vary how much toner is used through the printer, only by using the software to vary how heavy or light you would like your documents printed. When the drum (photoconductor) is starting to fail, the light which flashes to tell you the toner is low will come on and stay steadily lit. If you replace the toner and it doesn't go out, then more than likely the drum is ready to be replaced. Very simple to do and should come with instructions on how to reset the drum counter, if not a call to Lexmark tech support will answer your question. We have one at my work and have had to replace our drum already. It was simple and the tech was very helpful.

Hello sir; when you put the new toner in did you remove the seal tape ?

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Maybe the toner is low... According to the manual, a blinking red light:

• A minor error is occurring and
the printer is waiting for the error
to be cleared. When the problem
is cleared, the printer resumes
printing.
• The toner cartridge is low. Order
a new toner cartridge. You can
temporarily improve print quality
by redistributing the toner. See
page 8.3.
• The toner is totally exhausted.
Remove the old toner cartridge
and install a new one. See page
8.4.
• The toner cartridge reached the
end of its life.

I got exactly the same problem and the "reset" didn't do anything. I fixed it by putting a piece of duck tape on magic eye on the cartridge.
Fallow those step to do the same thing as me:

1. Open the front panel.
   
2. Remove the toner and the drum
   
3. Remove the toner FROM the drum
   
4. On each side of the toner, there should be a little glass. Put the piece of duck tape on one of them. I put mine on the right side.
   
5. Put everything back in.
   
6. Turn on your printer if it's not already.
7. Now, the low toner light should be gone and the green light should be on.
   

Now, you can really empty your cartridge.

it is printing with this blinking or not?