Brother HL-L2300D Service Manual page 39

LED
The number of rotations of the drum unit has
reached the upper limit.
(Printing does not stop.)
There is no paper set in the manual feed slot on the
manual feed slot fix mode.
When printing from the paper tray, the paper feed
sensor detected that there was no paper set in the
paper tray.
The new toner sensor could not detect the new toner
cartridge correctly.
The new toner sensor detected that the toner
cartridge was not set.
An error occurred in the ROM check sum.
Program error
An error occurred during access to the DRAM in the
main PCB ASSY.
Read error in the flash ROM on the main PCB
The side thermistor of the fuser unit detected a
temperature higher than the specified value.
Type of problem
2-21
Error Refer
codes to:
4200 2-33
8C00 2-43
9302 2-44
4F01 2-34
6101 2-36
E000 2-45
E100 2-45
E500 2-45
E702 2-45
6801 2-36
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