Brother 2150N Manuale Utente

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This service manual contains basic information required for after-sales service of the laser 
printer (hereinafter referred to as "the machine").  This information is vital to the service 
personnel to maintain the high printing quality and performance of the machine.

This service manual covers the HL-2140/2150N/2170W machines.

This manual consists of the following chapters:

Details of error messages and codes that the incorporated self-diagnostic function of the 
machine will display if any error or malfunction occurs.  If any error message appears, refer to 
this chapter to find which parts should be checked or replaced.

The latter half of this chapter provides sample problems that could occur in the main sections 
of the machine and related troubleshooting procedures.

Details of consumable parts and periodical maintenance parts.  This chapter also covers 
procedures for disassembling and assembling periodical maintenance parts.

Details of procedures for disassembling and assembling of the machine together with related 
notes.  The disassembly order flow provided enables you to see at a glance the quickest way 
to get to parts involved. 

At the start of a disassembly job, you can check the disassembly order flow that guides you 
through a shortcut to get to the object parts.

This chapter also covers screw tightening torques and lubrication points to which the 
specified lubrications should be applied during assembly jobs.

Details of adjustments and updating of settings, which are required if the main PCB and 
some other parts have been replaced.  This chapter also covers how to update the firmware.

Describes the maintenance mode which is exclusively designed for the purpose of checking 
the settings and adjustments using the keys on the panel.

This chapter also covers hidden function menus, which activate settings and functions or 
reset the parts life.  

Provides the Circuit Diagrams and Wiring Diagram for the connections of the PCBs.