Kyocera FS-C8020MFP, FS-8025MFP SERVICEBULLETINS 2KZ-002

Service Bulletin

SB Number:

Subject:

SB 2KZ-002

Colour registration shift/Error code C7620

Creation Date: 24/08/2011

Model: FS-C8020MFP/8025MFP

Contents of changes

In high humidity environments, the Primary transfer belt may slip or sag around the ID sensor when executing
calibration. Under this condition the ID sensor value may be detected as abnormal. In this case the
colour registration may shift or error code C7620 (Abnormal calibration) may occur. The above mentioned error
code is not displayed at the operation panel, but can be checked in the event log.

Therefore the following changes have been made:

1. The Engine rmware (2K0_1000.005.001) has been changed as follows:
To prevent the belt from slipping, the secondary transfer current between pages has been changed from
negative bias(-) to positive bias (+).

2. The tension of the spring belt tension has been changed from 25.0N to 37.5N.

Front side of the machine

Rear side of the machine

Spring belt tension Spring belt tension

Old condition: Spring belt tension

34.7mm 39.6mm

Spring tension 25.0N

Parts

No. Old Parts

No.

1 302K093070

2K093070

2 --------- 302K021411

New Parts No. Description Q’TY Interchange-

302K093071
2K093071

2K021411

New condition: Spring belt tension

φ6.5 φ6.5

Spring tension 37.5N

Remark

ability

Old New Old New

TR-895A 1 1 X O

+SPRING BELT TENSION
(Set to a service part)

- 2 - O Component
of No.1

KMIS Service Department, Kyocera Mita Europe B200 / SB 2KZ-002

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Service Bulletin

Classication

Field measure When the colour registration shift appears, please upgrade the rmware to the latest version.

Serial numbers of affected machines

Type Serial number

FS-C8020MFP/8025MFP June 2011 production

The above mentioned changes have been applied to machines produced after the above mentioned production date.

Firmware

Type Program No. Ver. Remarks

Upgrade Pack Ver. 2KZ_V3.01E 3.01

MAIN 2KZ_2F00.003.002 003.002

MMI 2KZ_7000.003.002 003.002

ENGINE 2K0_1000.005.001 005.001

IO 2K0_1E00.001.020 001.020

IH 2LC_1A00.002.001 002.001

LSU 2K0_1C00.001.012 001.012

DP 3M8_9500.003.001 003.001

FAX BOOT/APL 5JR_5500.B03.001 B03.001 BOOT(B02.001) / APL B03.001

Entire stock rework

When error code C7620 (Abnormal calibration) appears in the event log, please upgrade the

rmware to the latest version and replace the spring belt tension with the latest type.

In-eld modication at next visit

In-eld modication by case

X

No modication necessary

Replacing the Spring belt tension with the latest type.

No. Procedure Details

1 Turn the main switch OFF. Remove the

Primary transfer belt unit.

2 A. Insert the latest type of the

Spring belt tension at the bush

side rst.

B. Make sure that the position of the
Spring belt tension is correct.

Use the above mentioned procedure
for the Spring belt tension at the
front side of the machine.

Rear side

Spring belt tension

B B

A

KMIS Service Department, Kyocera Mita Europe B200 / SB 2KZ-002

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