Brother HL-1112R - E72142M3N653369 / Error - LED Blinks 4 Times
This video is not a training video and does not carry anything other than video recording of the preparation of Brother HL-1112R - E72142M3N653369 for maintenance and restoration, with the identification of certain faults.
It is stated that the toner cartridge is filled, but there is no information about the printer's operability.
When turned on, the printer goes into an error - the LED blinks 4 times.
From old memory, I assume that the problem is with the toner cartridge, but there is no clear certainty. I start to try all the diagnostic methods. I reset the toner counter and photo drum - no result.
The drum unit from the donor generally puts the device into an error where the LED starts blinking 3 times. I get completely confused in identifying the fault and go on pause.
The solution was found after 1 minute ... but this is already in another part of the video review for this device.