Brother Laserprinter Hl 1270n User Guide

							CHAPTER 3  MAINTENANCE
3-13
*
  6.Make sure the printer is turned on, the front cover is open and the 
Drum and 
Alarm LEDs are
illuminated.
*
  7.Reset the page counter. See the instructions supplied with the new drum unit.
!Caution
When you replace only the toner cartridge, do not reset the page counter.
*
  8.Close the front cover.
*
  9.Make sure that the 
Drum LED is now off. 
						

							3-14
How to clean the printer
Clean the printer exterior and interior periodically.  If printed pages get stained with toner,
clean the printer interior and drum unit.
Cleaning the printer exterior
2 Note
Clean the printer exterior using the information in the following instructions.  This procedure
is demonstrated in the instructional video on the supplied CD-ROM.
*
  1.Turn off the power switch and unplug the power cord.
 WarningThere are high voltage electrodes inside the printer. Before cleaning the printer, make
sure you have turned off the power switch and unplugged the power cord from the
power outlet.
Fig. 3-18  Turning off the switch and unplugging the power cord
*
  2.Use a damp cloth for cleaning. 
						

							CHAPTER 3  MAINTENANCE
3-15
!Caution
Use water or neutral detergents for cleaning.  Cleaning with volatile liquids such as thinners or
benzene will damage the surface of the printer.
*
  3.Wipe dirt and dust away from the printer exterior with the damp cloth and allow the printer to
dry completely before turning the power on again.
*
  4.Plug in the power cord. 
						

							3-16
Cleaning the printer interior and Drum Unit
2Note
Clean the printer interior and the drum unit following the instructions below.  You can view
this procedure in the instructional video on the supplied CD-ROM.
*
  1.Turn off the power switch and unplug the power cord.
 Warning



There are high voltage electrodes inside the printer. Before cleaning the  printer, 
make sure you have turned off the power switch and unplugged the  power cord 
from the outlet.
Fig. 3-19  Turning off the switch and unplugging the power cord
*
  2.Open the front cover of the printer.
*
  3.Take the drum unit assembly out of the printer and place it to one side. 
						

							CHAPTER 3  MAINTENANCE
3-17
 
Warning
After you have just used the printer, some internal parts of the printer are extremely
HOT. When you open the front cover of the printer, never touch the shaded parts
shown in the following illustration.
     
 High Temperature
            High Temperature Front view               Rear view
Fig. 3-20  Inside the printer
*
  4.Gently wipe the scanner window with a soft dry cloth.
                
Fig. 3-21  Cleaning the scanner window
!Caution

Do not touch the scanner window with your fingers.

Do not wipe the scanner window with cleaning alcohol (isopropyl).

Handle the drum unit carefully because it contains toner.  If toner scatters and your hands
or cloths get dirty, immediately wipe or wash it off with cold water.
2Note
It is a good idea to place the drum unit on a piece of cloth or disposable paper in case you
accidentally spill or scatter the toner.
 Scanner Window 
						

							3-18
*  5.Clean the primary corona wire inside the drum unit by gently sliding the tab to the right hand
end and left hand end several times.
Fig. 3-22  Cleaning the primary corona wire
*  6.Return the tab to the Home position before reinstalling the drum unit assembly into the printer.
!Caution
Be sure to position the tab at the Home position, or printed pages may have vertical stripes.
*  7.Install the drum unit assembly into the printer.
See the section “How to replace the Drum unit” earlier in this Chapter.
*  8.Close the front cover.
*  9.Plug in the power cord and turn on the power switch.
Home Position (s) 
						

							CHAPTER 4 TROUBLESHOOTING
CHAPTER 4  
TROUBLESHOOTING
First, check the following: 
						

							4-2
Control Panel Indications
Operator calls and how to clear them
The LED indications as shown in the table below are used in the illustrations in this chapter.
mLED is Off
LED is Blinking

LED is On
If a recoverable error occurs, the printer indicates an ‘operator call’ by the LED indications as
shown in the table below.
Identify the error from the table below and take the action described for each indication to
correct it.  The printer automatically recovers from most errors, but you may also need  to reset
the printer with the panel button as described below.
For example, the following are the indications when the toner is low.
Ready
Alarm
Paper
Toner
Data
Drum
Fig.  4-1   LED indications caused by low toner 
						

							CHAPTER 4 TROUBLESHOOTING
4-3
LED Error Action
Ready
AlarmPaper
Toner
Data
Drum
Paper jam
No paper
MisfeedClear the paper jam. See the next
section “PAPER JAMS and how to
clear them”.  Press the panel button if
the printer does not automatically
resume printing.
Load paper into the printer . See
Chapter 1, then press the panel button.
Reinstall the paper and press the panel
button.
Ready
AlarmPaper
Toner
Data
Drum
(every 5 seconds)Toner Low Indicates that the toner cartridge is
nearly empty. Purchase a new toner
cartridge and have it ready for when
Toner Empty status is indicated.
Ready
Alarm Paper
Toner
Data
Drum
Ready
AlarmPaper
Toner
Data
Drum
Toner emptyReplace the toner cartridge with a new
one.  See Chapter 3. 
						

							4-4
Service call indications
If an unrecoverable error occurs, the printer will indicate the need for a service call by
illuminating all the LEDs,  followed by a combination of LEDs as shown below:
For example, the following are the indications when a Fuser malfunction error occurs.
Ready
AlarmPaper
Toner
Data
Drum
Ready
AlarmPaper
Toner
Data
Drum
Fig. 4-2  LED indications caused by a fuser malfunction error
Service CallFuser
MalfunctionLaser BD
MalfunctionScanner
MalfunctionROM Error
Drummm
Ready
mm
Alarm
mmm
Data
mmmm
Service Call D-RAM
ErrorService A Service B Engine
Interface
Error
Drummm
Ready
mm
Alarmm
Data
mmm
Service Call NV-RAM
ErrorMain motor
MalfunctionCPU Runtime
Error
Drumm
Ready
m
Alarm
Data