Konica 7155-65 Service Manual 7155fv4e

4

SERVICE

4 SERVICE

Main Precautions for Maintenance

4 SERVICE

1. Points to be confirmed before mainte­nance
Before starting maintenance, ask a
user and collect information about trou­bles that occurred on the machine
before the maintenance and the condi­tions of the machine to grasp key points
for the maintenance.

2. Copy sample
Be sure to make copy samples at the
start and the end of maintenance for
checking images.

3. Drum

a) Never expose the drum to the sunlight.

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.

b) When replacing a drum, toner guide

roller or cleaning blade, refer to the Item
removing and installing a cleaning
blade.

4. When replacing the drum and devel­oper, must perform neccessary adjust­ment by refering to the List of
Adjustment Items.

5. After having completed maintenance
work, must reset the PM counter (using
the 25 mode).

6. When replacing the fixing unit cleaning
web, developer, and drum must reset
the fixing unit cleaning web counter(
using the 36 mode).

7. When replacing a toner cartridge, wait
until the toner supply LED on the oper­ation panel flashes before the replace­ment.

Caution:Turn the main power switch

(SW1) off and pull out the power
pulg without fail before the
work of maintenance.

SERVICE SCHEDULE

[1] Service Schedule

Service item Numbe of copies

Main
body

RADF
DF-316

FNS
FS-110

FNS
FS-210

LCT
LT-402/412

PI
PI-110

PK
PK-110

Maintenance Every 250,000 cop-

ies

Periodic check (I) Every 500,000 cop-

ies

Periodic check (II) Every 1,000,000

copies

Periodic check (III) Every 2,000,0000

copies

Periodic check (IV) Every 2,500,000

copies

Periodic check (V) Every 4,000,000

copies

Maintenance Every 250,000 cop-

ies

Periodic check (I) Every 500,000 cop-

ies

Periodic check (II) Every 1,500,000

copies

Maintenance Every 250,000 cop-

ies

Periodic check (I) Every 1,000,000

copies

Periodic check (II) Every 2,500,000

copies

Maintenance Every 250,000 cop-

ies

Periodic check (I) Every 1,000,000

copies

Periodic check (II) Every 2,500,000

copies

Maintenance Every 250,000 cop-

ies

Periodic check (I) Every 1,000,000

copies

Periodic check (II) Every 4,000,000

copies

Maintenance Every 250,000 cop-

ies

Periodic check (I) Every 500,000 cop-

ies

Periodic check (II) Every 1,000,000

copies

Periodic check (III) Every 3,000,000

copies

Maintenance Every 250,000 cop-

ies

SERVICE SCHEDULE

Guarantee period (5 years or 5,000,000 copies)

×10,000 copies

0 25 50 75 100 125 150 175 200 225 250 275 300 325 350 375 400 425 450 475 500

zzzzzzzzzzzzzzzzzzz

zzzzzzzzzz

zzzz

zz

z

z

zzzzzzzzzzzzzzzzzzz

zzzzzzzzz

zzz

zzzzzzzzzzzzzzzzzzz

zzzz

z

zzzzzzzzzzzzzzzzzzz

zzzz

z

zzzzzzzzzzzzzzzzzzz

zzzz

z

zzzzzzzzzzzzzzzzzzz

zzzzzzzzz

zzzz

z

zzzzzzzzzzzzzzzzzzz

Service

count

19 times

9 times

4 times

2 times

1 times

1 times

19 times

9 times

3 times

19 times

4 times

1 times

19 times

4 times

4 SERVICE

1 times

19 times

4 times

1 times

19 times

9 times

4 times

1 times

19 times

4-1

SERVICE SCHEDULE

[2] Maintenance Items

1. Main body (Every 250,000 copies)

N

Classification Service item

O

1 Preparation
2Drum unit

4 SERVICE

3 Developing

unit

Note:

*1 After replacing the toner guide roller, be sure to apply an electricity lubricant on the edge of the guide

roller shaft (on power supply pin side).

(1) Image check

(1) Charging control plate

56AA2503*
(2) Charging wire 56AA2509*

(3) Charging corona unit (back

plate and peripheral section,
PCL)

(4) Charger cleaning base

56AA2540*
(5) Charger slide block

56AA2538*
(6) Charger cleaning block /U

56AA-253*

(7) Resin ring (φ 2) 45AA2040*

(8) Charger cleaning block /L

56AA-254*

(9) Drum cartridge, bottom plate of

the developing unit, toner con­trol sensor, separation claw

(10) Toner collection screw A

(11) Toner guide roller *1

56AA-213*

(12) Cleaning blade (36 mode

blade setting mode)

56AA2010*
(1) Developing bias armature

(2) Developer (25 mode counter

resetting)

(3) Developing unit

Num­ber of

parts

replace

d

1

1

1

1

1

1

1

1

1

1

Implementation classifica-

tion

Clea-

ning

Inspe-

ction

Lubric

-ation

Repla

ce-

ment

z

z

z

z

z

z

z

z

z

z

z

zz

z

z

z

z

Materials/tools

used

Drum cleaner/
waste/blower
brush

Blower brush/
cleaning pad/A
drum cleaner is
used only when
cleaning a toner
control sensor.
Blower brush/
cleaning pad
Electricity lubri­cant

Blower brush/
cleaning pad

Blower brush/
cleaning pad

MODEL MANUAL REVISED EDITION DATE PAGE METHOD

7155/7165

SERVICE HANDBOOK Nov. 2001

4-2 REPLACEMENT

SERVICE SCHEDULE

N

Classification Service item

O

4 Transfer / sep-

aration corona

5 Toner supply

6 Conveyance

unit

7 Registration

8 Drive section

and filter

9 Paper exit unit

(1) Transfer separation corona unit

(front and rear block), guide
rail, separation bridge,
entrance guide plate, lightning
protection sheet, back plate

( 2) Di s ch ar g e w ir e 56AA 26 09 *

(3) Transfer cleaning assembly

(4) Separation cleaning assem-

b ly 5 6A A -2 67 *
(5) Resin ring (φ2 ) 4 5A A2 04 0*

(6) Transfer presser rubber

(1) Cartridge holder member

(1) Conveyance section upper sur-

face

(2) Conveyance belt

(3) TSL cover member

(1) Paper dust removing brush

(2) 2nd paper feed roller

( 1) Oz o ne fi l te r K 55 FA 73 01 *

(2) Developing suction filter

(1) Sensor (one section)

(2) Roller (two sections)

56AA-264*

55VA2615*

56AA-735*

Num­ber of

parts

replace

d

3

1

1

2

3

1

1

Implementation classifica-

tion

Clea-

ning

Inspe-

ction

Lubric

-ation

Repla

ce-

ment

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

Materials/tools

used

Blower brush/
cleaning pad/cot­ton swab/drum
cleaner

Cleaning pad

Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Cleaning pad/
blower brush
Drum cleaner/
cleaning pad

4 SERVICE

Blower brush
Drum cleaner/
cleaning pad

4-3

SERVICE SCHEDULE

4 SERVICE

N

Classification Service item

O

10 ADU

10 ADU (10) Gears
11 Paper feed

section

12 By-pass feed

section

13 Scanner

section

(1) Roller cleaning

(2) Reverse/exit roller

(3) ADU reverse roller

(4) ADU conveyance roller /1-4

(5) ADU registration roller

(6) Sensors

(7) Gate sensor (two points)

(8) ADU horizontal conveyance

sections (four points)

(9) ADU reverse section (one

point)

(1) Sensor (three points/tray)

(2) Gears (double feed preven-

tion section)

(3) Conveyance/driven roller

(paper feed)

(4) Feed roller/paper feed con-

veyance roller

(5) Double feed prevention

roller
(1) Sensor (four points)
(2) Gears
(3) Section peripheral of the by-

pass feed unit
(4) Feed roller/paper convey-

ance roller
(5) Double feed prevention

roller
(1) Original glass (including slit

glass)
(2) Exposure lamp
(3) Reflector
(4) Lens

(5) 1st to 3rd mirrors

(6) APS sensor
(7) Photo interrupter

Num­ber of

parts

replace

d

Implementation classifica-

tion

Clea-

ning

Inspe-

ction

Lubric

-ation

Repla

ce-

ment

z

z

z

z

z

z
z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z
z

z

z

z
z

Materials/tools

used

Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Blower brush
Blower brush
Blower brush

Blower brush

Plus guard No. 2
Blower brush

Plus guard No.2

Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Blower brush
Plas guard No.2
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Blower brush
Cleaning pad
Blower brush/
cleaning pad
Blower brush/
cleaning pad
Blower brush
Blower brush

4-4

SERVICE SCHEDULE

N

Classification Service item

O

(8) Optical guide rail

14 Writing section (1) Dust-proof glass (external)

15 Fixing unit (1) Fixing upper roller

(2) Fixing lower roller

(3) Fixing claw (L)

(4) Paper exit roller

(5) Paper exit conveyance

roller (right) and guide rib

(6) Fixing unit entrance and exit

guide plate

15 Fixing unit

16 Vertical con-

veyance

17 Final check

(7) Fixing temperature sensor /2

(8) Decurler

(9) Fixing gear

(10) Fixing web unit (25 mode

counter resetting)

56AA-543*

(11) Fixing claw (U)

56AA5427*
(12) Heat insulating sleeve

(1) Horizontal conveyance roller

(2) Sensor

(1) W.U.T. check

(2) Peripheral and exterior clean-

ing

(3) Image and paper through

check

(4) PM counter resetting (25 mode)

Num­ber of

parts

replace

d

1

6

2

5

Implementation classifica-

tion

Clea-

ning

Inspe-

ction

Lubric

-ation

Repla

ce-

ment

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

z

Materials/tools

used

Cleaning pad
Blower brush/
cleaning pad
Roller cleaner/
cleaning pad
Roller cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Drum cleaner/
cleaning pad
Blower brush/
paper
Cleaning pad
Moly therm grease

Tri-flow
Drum cleaner/
cleaning pad
Blower brush

Drum cleaner/
cleaning pad

4 SERVICE

4-5

SERVICE SCHEDULE

2. RADF [DF-316](Every 250,000 copies)

N
O

1
2

3

4

4 SERVICE

5 Final check

Classification Service item

Preparation (1) Paper through check
Paper feed sec-

tion

Conveyance
section

Paper exit sec­tion

(1) Size detection sensor/1
(2) Size detection sensor/2
(3) Registration sensor
(4) Feed roller

(5) Paper feed roller rubber

(6) Double feed prevention roller

rubber
(7) Cleaning pad
(8) Registration roller

(1) Read sensor
(2) Skew sensor (F)
(3) Skew sensor (R)
(4) Double side registration sensor
(5) Read roller (F)

(6) Read roller (R)

(7) Platen guide

(8) Reverse conveyance roller/1

(9) Reverse conveyance roller/2

(1) Paper exit roller

(1) Paper through check
(2) Exterior cleaning

Num­ber of

parts

replace

d

1
1
1

1

1

1

1

1

1
1
1
1

1

1

1

1

1

1

Implementation classifica-

tion

Clea-

ning

Inspe-

ction

Lubric

-ation

Repla

ce-

ment

z
z
z
z

z

z

z

z

z

z
z
z
z

z

z

z

z

z

z

z

z

Materials/tools

used

Blower brush
Blower brush
Blower brush
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad
Blower brush
Drum cleaner/clean-

ing pad
Blower brush
Blower brush
Blower brush
Blower brush
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad
Drum cleaner/clean-

ing pad

Drum cleaner/clean­ing pad

4-6