Brother hl-1430 :drum , ready and alarm leds flashing

Question edited for full 'make model (what it is)'
Question moved to Brother HL category.

chapter 3 onwards of the manual. The drum light means you need a service call.
https://download.brother.com/welcome/doc002127/ZLe_UG_eng.pdf

..

Hello jimpat18 ,

Try hard resetting once ...

Motherboard is faulty

please check all hardware clin the printer this problem show hardware

When the printer "Ready" and "Alarm" LEDs flash as shown, please check the following points:
1.Paper Jam: Clear the paper jam referring to "How do I clear paper jams?"
If the printer does not automatically resume printing, press the control panel button.
2.No Paper/ Misfeed:
-The paper cassette may be out of paper or not properly installed.
-If it is empty, load a new stack of paper into the paper cassette.
-If there is paper in the paper cassette, make sure it is straight.
-If the paper is curled, straighten it before printing. Sometimes it is helpful to remove the paper, turn the stack over and put it back in the paper cassette.
-Reduce the amount of paper in the paper cassette, and then try again.
-Make sure you use paper that meets Brother's recommended paper specifications.
-Reinstall the paper properly, and then press the control panel button. The printer will start printing again.

switch off the printer. check whether any piece of paper is stuck inside the printer. reinsert the cartridge and then switch on the printer.

red alarm light is on and printer is not printing

according to the error, your toner cartridge needs to be replaced.

thank you

Might have a paper jam in area of toner and drum cartridge that may need to be removed. Typically this will solve the issue.

tray this
The procedure for the factory inspection mode is as follows.
(1) Turn off the printer power switch, open the front cover, and remove the drum unit.
(2) Turn on the printer power switch while holding down the control panel button. The Drum
LED comes ON.
(3) Lightly press the panel button again.
(4) Check that all the LEDs except the Ready LED are OFF.
✒ If the toner sensor is ON, the Drum LED stays ON (error).
✒ If the front registration sensor is ON, the Alarm LED stays ON (error).
✒ If the upper paper cassette sensor is ON, the Data LED stays ON. (error) (HL-1250
only)
NOTE:
The lower paper cassette solenoid is turned ON/OFF even if the panel button is not pressed.
(5) Check the rear registration sensor.
✒ If the rear registration sensor is stuck backwards, the Ready LED stays OFF. (error)
✒ If the rear registration sensor is moved back and forth, the Ready LED comes ON at
any time. (error)
(6) Check that only the Data LED comes ON while pressing the panel button.
✒ If the paper eject sensor is ON, the Drum LED stays ON. (error)
✒ If the lower paper cassette registration sensor is ON, the Ready LED stays ON. (error)
If the registration sensor is ON, the lower paper cassette solenoid is turned ON, and
the Ready LED also stays ON. (HL-1250 only)
NOTE:
The lower paper cassette solenoid is turned ON/OFF even if the panel button is not pressed.
(7) Install the drum unit.
✒ Check that the Drum LED goes ON and the Ready LED goes OFF.
(8) Close the front cover.
(9) Continue to press the control panel button.
✒ Check that the Data LED stays OFF.
(10) Release the panel button.
(11) If all the sensors except the toner sensor are correct, the printer goes back to the Ready
status.
If any error is detected, the printer stays in the inspection mode.