Brother Printer error code 20, 21, 22, 23 are caused by Laser Diode failure. The laser diodes writes information to be printed onto surfaces of the drum. To fix Brother Printer error code 20 by following the blog steps discussed. The printer error code 20 is related to laser scanner assembly error in brother model DCP 9045 and MFC 9840 machine.
Get In Tuch:
Website: http://www.brotherprintersupportnumber.com/blog/how-to-fix-brother-printer-error-code-20/
Toll-free No.: 1-800-213-8289