Kyocera TASKalfa 250, TASKalfa300, TASKalfa400, TASKalfa500ci SERVICEBULLETINS 3NV 0001 B463 1

The flange of the drive pulley (No

2) is now disused

in order

The b

elt skews to the

The belt shifted

to the

driven

The flange of the

Drive

Service Bulletin Ref. No.

Subject

(Revised issue 1)

(Page.1/2)

3NV-0001 (B463)

<Date> March 19, 2012

Measures against Damage of the DP Feed Belt (Change of the Drive Pulley Shape)

Model

(Installation target models of DP-770: TASKalfa 5550ci/4550ci/3550ci/3050ci, TASKalfa 5500i/4500i/3500i DP-750/DP-760: TASKalfa 500ci/400ci/300ci/250ci DP-750(B)/DP-760(B): TASKalfa 500ci/400ci/300ci/250ci, TASKalfa 552ci, TASKalfa 420i/520i

DP-700: KM-3050/4050/5050)

This time, the description with (-->) was revised from the previous information. <Number of changes: 1> [Field Measure] was revised.

DP-770, DP-750/DP-750(B), DP-760/DP-760(B), DP-700

Topic

If the DP feed belt runs onto the flange at the edge of the drive pulley due to the variety of the spring tension and the part dimensions, it may further run onto the flange of the driven pulley. Then, the belt edge may contact the HOLDER PF (303JX0703-) and be shaved, which might cause the J96xx jam. Therefore, the following change was made.

*Since there is more gap between the drive pulley and the HOLDER PF, the belt is not shaved. This phenomenon does not occur with the DP-771 as the mechanical construction is different.

Content of Changes

The shape of the drive pulley (No.2) was changed so that the belt will not run onto the flange at the edge of the drive pulley.

Drive pulley (No.2)

Driven pulley (3H607040-)

Where shaved

[Mechanism]

Driven side

Drive

side Spring tension difference between

left and right

HOLDER PF (303JX0703-)

(1)

Spring

Belt (303LL0753-)

Where shaved

side of less spring tension.

(On the right side in the

figure to the left)

Drive pulley (No.2) flange  Disused

(Old)

28±0.2 mm

Driven pulley (3H607040-)

to prevent the belt from running on. The driven pulley flange is higher than the one of the old type drive pulley, so belt does not run onto it.

(4)

pulley runs onto the flange of the drive pulley.

(3)

3) The belt is pulled after the 2) occurs and further shifted toward the direction X.

4) The belt also runs onto the

driven pulley flange and the belt contacts the HOLDER PF and is shaved.

(2)

1 mm

1.5 mm

(New)

28±0.2mm

drive pulley is now disused in order to prevent the belt from running on.

European Service & Development Center (ESDC)

KYOCERA MITA Europe B.V.

(Revised issue 1)

Q’

Com

ati-

next production

production

Service Bulletin Ref. No.

3NV-0001 (B463)

(Page.2/2)

<Date> March 19, 2012

No.

“+” at the beginning of the part name indicates that it is a component part.

Old Part

No.

303JX94081

3JX94081

2 3H607030

New Part

No.

303JX94082

3JX94082

303NV07020

3NV07020

Description

PF ASS'Y SP 1 1

+ COLLAR PF C 1 1

Old New Old New

lity

X O

Remarks

DP-700

KMC’s Classification Entire Stock Rework In-Field modification at next visit

In-Field modification by case No modification necessary

Field Measure:

(-->)

1) When the DP feed belt is shaved, please replace the drive pulley with the new type drive pulley (No.2) after replacing the belt (303LL0753-).

2) Also, when replacing the pulley of the DP-750/DP-750(B), DP-760/DP-760(B) or DP-700, please perform the process described in the service bulletin SB-2KP-0018-B330. (Please use the PARTS BELT PF SET SP (303LL94210).) This measure has been already applied to the DP-770 since the first production. Serial Nos. of Affected Machine: Pleas refer to the tables below.

Serial Nos. of the Affected Machines

DP-770

KMA KME UTAX Olivetti KMAS* KMCHN KMKR

1203NV6US0 1203NV5NL0 1203NV5UT0 1203NV5LV0 1203NV5AS0 1203NV5KS0 1203NV5KR0

N2X

N2U1Z14124 N2V2118933

DP-750(B)

200V specs. KMCHN Others

1203LL5KL1 1203LL5KS2

QHA2178821 QMQ2103093

DP-760(B): From the next production

DP-700: No production is currently planned.

From

From next

NKF2100957 N2W2103099 NL82100684 NEB2101509

*Except KMKR/KMCHN specs.

European Service & Development Center (ESDC)

KYOCERA MITA Europe B.V.