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Confidential
PREFACE
This service manual contains basic information required for after-sales service of the laser
printer (hereinafter referred to as "this machine" or "the printer"). This information is vital to the
service technician to maintain the high printing quality and performance of the printer.
This service manual covers the
HL-5340D/5350DN/5350DNLT/5370DW/5370DWT/5380DN
printers.
This manual consists of the following chapters:
Provides specifications of each model, which enables you to make a comparison of the
different models.
CHAPTER 2: THEORY OF OPERATION
Gives an overview of the printing mechanisms as well as the sensors, actuators, and control
electronics. It aids in understanding the basic principles of operations as well as locating
defects for troubleshooting.
CHAPTER 3: ERROR INDICATION AND TROUBLESHOOTING
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.
CHAPTER 4: PERIODIC MAINTENANCE
Details of consumable parts and periodical maintenance parts. This chapter also covers
procedures for disassembling and assembling periodical maintenance parts.
CHAPTER 5: DISASSEMBLY/REASSEMBLY
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.
CHAPTER 6: ADJUSTMENTS AND UPDATING OF SETTINGS, REQUIRED
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.
Содержание HL 5370DW
Страница 12: ...CHAPTER 1 SPECIFICATIONS ...
Страница 32: ...Confidential CHAPTER 2 THEORY OF OPERATION ...
Страница 57: ...Confidential CHAPTER 3 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 109: ...Confidential CHAPTER 4 PERIODIC MAINTENANCE ...
Страница 129: ...4 19 Confidential 14 Secure the Fuser unit with the pan B M4x20 Taptite screw Fig 4 27 Taptite pan B M4x20 Fuser unit ...
Страница 145: ...CHAPTER 5 DISASSEMBLY REASSEMBLY ...
Страница 153: ...5 6 Confidential Fig 5 3 EM D110 4 places Separation pad ASSY ...
Страница 154: ...5 7 Confidential 5 GEAR LAYOUT DRAWING Fig 5 4 ...
Страница 187: ...5 40 Confidential 2 Remove the SW key B from the Top cover printed ASSY Fig 5 41 SW key B Top cover printed ASSY ...
Страница 200: ...5 53 Confidential 8 13 Main Shield Plate ASSY 1 Remove the Insulation sheet Fig 5 63 Insulation sheet Frame L ...
Страница 212: ...5 65 Confidential 8 24 Gear 17 20 23 1 Remove the Gear 23 Fig 5 84 2 Remove the Gear 20 Fig 5 85 ...
Страница 213: ...5 66 Confidential 3 Remove the Gear 17 black Fig 5 86 4 Remove the Gear 17 white Fig 5 87 ...
Страница 261: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 276: ...Confidential CHAPTER 7 SERVICE MODE ...
Страница 308: ...App 1 1 Confidential FIRMWARE SWITCHES WSW There is not function of the firmware switch in this machine ...