Printer is on status redlight on lights blinking in yellow and blue carteidge positions

Type into google the brand of printer then "Status indicator light" this will give you a list of statuses by lights.

Dear
i am a bit of confusion.
considering status light of toner marked as YELLOW and BLUE is on (lights). it indicate that the printer need to replacement of the respective toner carts. In this condition printer may not print. Error Messages and Status LEDs

Ink cartridge lights: Black, Blue, Magenta, Yellow

When light is on - ink is low (below 25%)
When light is flashing - out of ink - printer stops - replace cartridge

To get a printer status / configuration report press the info button (to the left of the on button)

It means there is a paper jam in the machine.

From the User Guide:

Black, Cyan, Magenta, and Yellow Supplies Status lights
These lights indicate when a print cartridge is low (the light is on), or empty or missing (the
light blinks). The lights also indicate when a non-HP print cartridge is installed (the light
blinks and the Attention light is on).

If you don't have a User Guide click on the link below and save it for future reference.


2550n User Guide

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Lamp is bad need new lamp

please change your printer black carteidge or solve paper jum

U can have stuck a little piece of paper, that it mess whit some sensor. Try to open the Oki, push the drum unit out and watch if there is no paper stucked.

To fix the NON EXISTANT paper jam:

Status light is on, paper light is on - you can hear the paper feed trying to "grab" the paper, but it can't,  and status light goes Red.

Take out paper tray

Reset the blue paper holders, move them tight against the paper so the paper is snug against all blue barriers. Cause: Somehow the blue paper holders got dislodged and the paper is not snug so the feeder is trying to grab paper that  is slightly out of reach.