Brother 7440 code 72?????

[nmfaxman]

Cust. jammed cartridge into machine. I had to pull the drive unit out to release it now getting code 72. I suspect the paper lift solenoid or drive board.
What is a Code 72???????????

[blackcat4866]

I have three Brother manuals for other models. They all concur. "72" is the universal 'Beam Detect' error. Did you accidentally unplug the laser, or mess up a laser shutter linkage? =^..^=

[rajtvm007]

Yes correct error 72 is related with laser unit. Replace laser unit with new one

[tonerspot]

you can replace only ic nbc 3111 on laser board