1 OUTLINE
2 ISW
Main Precautions for Maintenance
1. Points to be confirmed before maintenance
Before starting maintenance, ask a user
and collect information about troubles occurred on the machine before the maintenance and the conditions of the machine to
grasp key points for the maintenance.
2. Copy sample
3 SERVICE
4 SERVICE
Be sure to make copy samples at the start
and the end of maintenance for checking
images.
3. Drum
1) Never expose the drum to the sunlight.
2) When replacing a drum or a cleaning
Blank page
Be also careful not to expose a drum to
indoor light as far as possible.
When a drum unit or a drum is out of the
machine, never fail to cover it with a
drum cover.
blade, refer to item of mounting/dismounting of a cleaning blade for doing a
replacement work.
4. After replacing the drum or the developer,
refer to the list of adjustment items, and
carry out the necessary adjustments.
5. When maintenance is completed, be sure
to reset the PM counter (25 mode). Incidentally, a development counter is reset automatically in the course of L detection adjustment.
6. When replacing a toner bottle, wait until the
toner supply message on the operation
panel displays before the replacement.
Caution: Turn the main switch off and
pull out the power plug without fail before the work of
maintenance.
SERVICE SCHEDULE
Number of copies (unit: 10,000)
Service item (cycles)
Maintenance
(Every 100,000 copies or prints)
Periodic check (I)
(Every 200,000 copies or prints)
Periodic check (II)
(Every 400,000 copies or prints)
Periodic check (III)
(Every 800,000 copies or prints)
Maintenance
(Every 100,000 copies or prints)
Periodic check
(Every 200,000 copies or prints)
Periodic check
(Every 100,000 copies or prints)
Periodic check
(Every 200,000 copies or prints)
Maintenance
(Every 200,000 copies or prints)
Maintenance
(Every 100,000 copies or prints)
MaintenanceMaintenance
(Every 100,000 copies or prints)
Maintenance
(Every 100,000 copies or prints)
Periodic check
(Every 300,000 copies or prints)
Classifica-
tion
Main body
RADF
(DF-315)
DB-608
(1 tray + LCT)
DB-208
(3 trays)
DB-208A
(1 tray)
FNS
(FS-109)
10 20 30 40 50 60 90 100 110
Service
times
11 times
5 times
2 times
1 time
11 times
5 times
11 times
11 times
5 times
11 times
5 times
11 times
3 times
Guarantee period (5 years or 1,200,000 copies)
SERVICE
[1] Service Schedule
1 OUTLINE
2 ISW
3 SERVICE
4-1
4 SERVICE
SERVICE
[2] Maintenance Items
1 OUTLINE
1. Main body (Every 100,000 copies or prints)
Classification Service itemNo.
Preparation
1
Fixing unit
2
2 ISW
Drum unit
3
3 SERVICE
4 SERVICE
Developing
4
unit
Write unit
5
6
Transfer/
Separation
corona unit
(1) Image check
(2) External parts
(3) Check of adjustment value,
Dmax and correction error
(1) Fixing unit removing
(2) Upper cover removing
(1) Drum unit removing
(2) Drum unit check
(3) Charging corona unit removing
(4) Charging control plate
(5) Charging wire 55FA2501*
(6) Charging corona unit cleaning
(Back plate and its around, and PCL)
(7) Cleaner mount assembly
(8) Charging wire cleaning block (C)
(9) Charging wire cleaning block (D)
(10) Developing unit removing
(11) Drum removing
(12) Drum cartridge/Developing unit bot-
tom plate/Toner control sensor/Sepa-
rating claw/Developing bias intercept/
Clean with each
(13) Cleaning blade 55GA5601*
(14) Drum installing
(15) Charging corona unit installing
(1) Developing unit lower rib (inside &
outside)/upper cover (back side of
the urethane sheet)
(2) Developing unit installation
(3)
Toner supply opening and its around
(1)
Mirror
(2)
Dust-proof glass
(1) Transfer/Separation corona unit
cleaning (Front and rear block/Guide
rail/Separating bridge/Entrance guide
plate/Back plate) and include remov-
ing and installing
(2) Discharging wire 55GA2607*
55GA2507*
55GA-252*
55GA-253*
55GA-255*
Implementation classification
Cleaning
Lubrication
Replacement
Material used
SupplyCheck
Drum cleaner / Waste rag /
Blower brush
Blower brush / Cleaning pad /
Drum cleaner (Drum cleaner:
only when using the toner con-
trol sensor cleaning.)
Waste rag / Blower brush
(When cleaning the back
side of the urethane sheet,
the back side should be
cleaned, particularly the
urethane sheet section.)
Waste rag
Cleanig pad
Cleanig pad
Blower brush / Cleaning pad
Tools used
Remarks: ( ) and ( ) indicate the following in the classification of implementation.
( ) indicates items that must always be implemented.
( ) indicates items for checking whether they have reached the substantial resistance count listed in the fixed replacement part list and judge
whether to replace them or not.
4-2
SERVICE
Classification Service itemNo.
Machine
7
inside
2nd paper
8
feed unit
By-pass unit
9
Paper feed
10
unit
ADU
11
Reversal
12
paper exit
section
Reading
13
section
(1) Conveyance unit 55GA4501*
Conveyance guide plate
(2)
Conveyance belt 55GA4506*
(3)
Registration guide plate (B) assembly
(1)
Registration unit 55GA4301*
(2)
Registration roller (lower)
(3)
Registration roller (upper)
(4)
Registration paper feed roller
(5)
P
aper conveyance roller
(6)
Photo sensors 55208551*
(7)
Paper feed door 55GA-408*
(8)
By-pass tray 55GA-428*
(1)
Double feed prevention roller
(2)
Separation roller 54004056*
(3)
Paper feed roller 25BA4032*
(4)
Double feed prevention plate
(5)
Photo sensor/2 55WA8552*
(6)
Photo sensor 55208551*
(7)
Paper feed unit removing
(1)
Paper feed roller 25BA4032*
(2)
Separation roller 54004056*
(3)
Double feed prevention roller
(4)
Gears
(5)
Paper feed unit installing
(6)
Registration roller (lower)
(1)
Conveyance roller (A) 55HA5025*
(2)
Conveyance roller (B) 55HA5026*
(3)
Conveyance roller (C) 55HA5087*
(4)
Photo sensor 25AA8551*
(5)
Photo sensor 55208551*
(6)
Paper exit reversal roller
(1)
Reversal roller 40BA4825*
(2)
Conveyance roller 55GA4806*
(3)
Paper exit roller 55GA4805*
(4)
Photo sensors 25AA8552*
(5)
Original glass 55YA6150*
(1)
Lens 55GA6001*
(2)
1st mirror 55GA6106*
(3)
2nd mirror 55GA6115*
(4)
Original glass (1) 55GA6139*
(5)
Optics drive wire (front)
(6)
Optics drive wire (rear)
(7)
Optics driven sheet 25BA6189*
(8)
Optics driven sheet (upper)
(9)
APS sensors 25SA8552*
(10)
Photo sensors 55208551*
(11)
Lamp power supply relay cord
(12)
55GA4502*
55GA-431*
55GA4311*
55GA4312*
55GA4322*
55GA4323*
54004056*
54004235*
54004056*
55GA6132*
55YA9012*
Implementation classification
Cleaning
Lubrication
Replacement
Material used
SupplyCheck
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Blower brush
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Blower brush
Blower brush
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Plus guard No. 2
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Blower brush
Blower brush
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Drum cleaner / Cleaning pad
Blower brush
Drum cleaner / Cleaning pad
Blower brush
Blower brush / Cleaning pad
Blower brush / Cleaning pad
Drum cleaner / Cleaning pad
Multi oil / Cotton tips
Multi oil / Cotton tips
Blower brush
Blower brush
Tools used
1 OUTLINE
2 ISW
3 SERVICE
4 SERVICE
4-3