Brother HL-4000CN - 23 Noise; 24 Firmware Update Function; 25 Tools and Service Consumables; Tools

I-24
23. NOISE
Standby: 35 dB (A) max
Printing:
Base engine Optional feeder
Cassette run MSI run Cassette run
Standard（600dpi）
52.0 dB(A) 54.0 dB(A) 54.0 dB(A)
High definition/gloss
(Half speed)
54.0 dB(A) 55.0 dB(A) 55.0 dB(A)
24. FIRMWARE UPDATE FUNCTION
The user can rewrite (update) the ESS firmware and Net extension card formware.
Update item Via IEEE1284 Via network (ftp) Via network (web)
ESS y y n
Net extension card y y n
MCU n n n
25. TOOLS AND SERVICE CONSUMABLES
25.1 Tools
604K2540 (Tester Adapter)
25.2 Service Consumables
The printer has no service consumables unique to the machine.
26. CONSUMABLES
Consumables Product Code Life (No. of sheets printable)*1
Black Toner Cartridge TN-11BK 8.5K
Cyan Toner Cartridge TN-11C 6K
Magenta Toner Cartridge TN-11M 6K
Yellow Toner Cartridge TN-11Y 6K
Drum Cartridge PH-11CL 30K
Transfer Roll Cartridge
（with the Waste Toner Bottle）
TR-11CL 25K
*1: Conditions of use
Paper size: A4 or LETTER
Black-and-white/color ratio: 1:1
Toner coverage: 5%
Number of sheets printed at a time: 4 ave.