Ricoh af470w Technical Bulletin

echnical Bulletin

T

PAGE: 1/3

Model:

Subject:

From:

Dolphin

Service Manual

Technical Services Dept., GTS Division

Classification:

Troubleshooting

Mechanical

Paper path

Other ( )

Part information

Electrical

Transmit/receive

Date:

23-Aug-01

Prepared by:

No.:

RB010001

F. Noguchi

Action required

Service manual revision

Retrofit information

The sentences in italics show recent corrections to the Service Manual. Please correct
your manuals accordingly.

Page 1-25 1.7.2 INSTALLATION PROCEDURE

Corrected: Step 5 and illustration

5. Install the wire saddle [H] and connect the DC harness [I] from the main frame to the
I/F board.

[G]

Page 3-11 3.5.1 DRUM AND DEVELOPMENT UNIT

Corrected: Step [C]

[C]: Toner hopper cover (! x 2)

[F]

[H]

[E]

[I]

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PAGE: 2/3

Model:

Dolphin

Date:

23-Aug-01

Page 5-21 5.9 SP (SERVICE PROGRAM) MODE TABLE

Deleted: The following SP modes.

5501: PM Alarm Level
5504: JAM Alarm Level
5505: Error Alarm Interval
5507: Paper Supply Call Level
5590: Auto Call Level
5816: CSS Function
5821: CSS PI Device Code

Corrected: SP mode descriptions.

Mode Number/Name Function / [Setting]

1103 Fusing Idling Selects the fusing idling time.

[0 ~ 3/ 0 / 1 min. step]

0: No idling

1: 1 minutes
2: 3 minutes
3: 5 minutes

5958 15 m Setting Enables or disables the optional special order firmware

designed for measuring 15 meter paper lengths.
[0 ~ 1 / 0 / 1 step]

0: Enable

1: Disable

No.:

RB010001

Page 6-30 6.6.3 DEVELOPMENT BIAS

Corrected: “Making ID Sensor Patterns” paragraph

Making ID Sensor Patterns

The machine makes two different ID sensor patterns, one for Low Duty Mode and one
for High Duty Mode. The mode is determined by SP 2201 004.

If the average copy volume is high (2.5 km/month or more), this SP should be

switched to High Duty Mode to prevent toner scattering.

However, if the machine is in High Duty Mode and the average copy volume becomes
low again, the image density may decrease. If this happens, switch back to Low Duty
Mode.

The ID sensor pattern development bias voltages for high and low duty modes can be
adjusted with SP 2201 002 and 003, as shown in the following table.

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Model:

Page 6-53 6.10.6 HOT ROLLER THERMOFUSE

Corrected: Description and illustration.

Dolphin

Non-contact thermofuses (rated for 192°C [A] and 216°C [B]) near the hot roller [C]
prevent accidental overheating which may lead to a fire hazard.

[B]

Date:

23-Aug-01

No.:

RB010001

[A]

[C]

echnical Bulletin

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PAGE: 1/1

Model:

Subject:

From:

Dolphin

HDD Spindle Control Setting (SP4960 005,006)

Technical Services Dept., GTS Division

Classification:

Troubleshooting

Mechanical

Paper path

Other ( )

Part information

Electrical

Transmit/receive

Date:

23-Aug-01

Prepared by:

No.:

RB010002

F. Noguchi

Action required

Service manual revision

Retrofit information

SYMPTOM

When HDD Spindle Control is disabled (default), SC980 may occur just after the machine
recovers from Auto Off / Panel Off.

CAUSE

When the machine is brought out of these modes, it is able to warm up quicker than when
the main power is turned on, and therefore checks the HDD status at an earlier point.
However since the HDD must warm up from a stop, it does not reach the ready speed in
time and a mainframe/HDD communication error occurs.

SOLUTION

The default setting for HDD Spindle Control (SP4960-005, 006) has been changed from
Off ! On, which keeps the HDD rotating constantly.

Cut-in serial numbers:

B010-17: From 1st production

B010-22: From 1st production

B017-27: From J201070001

ACTION IN THE FIELD

When installing the HDD option in the following machines, please change the setting of
SP4960-005 and 006 from Off ! On:

B010-27: J201060001 – J201060040 (40 units)

echnical Bulletin

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PAGE: 1/3

Model:

Subject:

From:

Dolphin

BICU & SCU Firmware Modification History

Technical Services Dept., GTS Division

Classification:

Troubleshooting

Mechanical

Paper path

Other ( )

Part information

Electrical

Transmit/receive

Date:

07-Sep-01

Prepared by:

No.:

RB010003

F. Noguchi

Action required

Service manual revision

Retrofit information

This RTB contains the modification histories for the BICU and SCU firmware.

Note: When installing either the BiCU or SCU firmware in the field, be sure to update both

together.

Part NumberDestination

BICU SCU
USA B0105162 B0105172 B010-17: US English
EU1, Asia B0105163 B0105173 B010-22,-27: English
EU2 B0105180 B0105190 B010-22,-27: French
EU3 B0108182 B0105192 B010-22,-27: German
EU4 B0108184 B0105194 B010-22,-27: Italian
EU5 B0105186 B0105196 B010-22,-27: Spanish
EU6 B0105188 B0105198 B010-22,-27: Dutch

Model Codes/Languages

Destination/
Part Number

Version/
Suffix

USA
B0105162
B0105172

Eu1_Asia
B0105163
b0105173

Eu2
B0105180
B0105190

Eu3
B0105182
B0105192

Eu4
B0105184
B0105194

Eu5
B0105186
B0105196

Eu6
B0105188
B0108198

RTB

issue

date

6.00AAAAAAA ---

6.06 B B B B B B B 07-Sep-01

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PAGE: 2/3

Model:

Dolphin

Date:

07-Sep-01

No.:

RB010003

Version 6.06

1. SP4960 005,006 (HDD Spindle Control) setting changed
Symptom

When HDD Spindle Control is disabled (default), SC980 may occur just after the machine
recovers from Auto Off / Panel Off.
Cause:
When the machine is brought out of these modes, it is able to warm up quicker than when the
main power is turned on, and therefore checks the HDD status at an earlier point. However since
the HDD must warm up from a stop, it does not reach ready speed in time and a
mainframe/HDD communication error occurs.
Solution:
The default setting for HDD Spindle Control (SP4960-005, 006) has been changed from
Off ! On, which keeps the HDD rotating constantly.

Cut-in serial numbers:

B010-17, -22: From 1
B010-27 : From J201070001

Note: When installing the HDD option in the following machines, please change the setting of
SP4960-005 and 006 from Off ! On:
B010-27: J201060001 – J201060040 (40 units).

st

production

2. New UP mode added (Weekly Output Volume)

To prevent toner scattering from the development unit (see the conditions below), the “Weekly
Output Volume” setting has been added to System Setting – General Features.

Symptom

When customers use low duty mode to make high-volume copy jobs (relative to the ACV), the
toner concentration in the development unit increases. This causes the oversupplied toner to
drop onto the copies, especially under low temperature conditions.

Solution

Change the “Weekly Output Volume” according to the customer’s average weekly copy volume
from inside System Setting – General Features:

Less than 750m (2,500 ft): Low duty mode (default).
More than 750m (2,500 ft): High duty mode

Action in the field

Please instruct customers on the following points at machine installation:

1) Method for how to enter UP Mode and change the Weekly Output Volume value.

2) For the first 1-2 months following installation, have the customers keep track of their copy

volumes at weekly intervals. The weekly changes in CV over this time will enable them to
decide which of the two settings is best for them.
Note: For customers installing the Dolphin as a replacement machine, please use the weekly
ACV on the previous machine for reference and set the Weekly Output Volume accordingly
(as a starting point).

3) During these first couple of months, if the average weekly copy volume exceeds 750m (2,500

ft), please have the customer change the setting of the Weekly Output Volume to “More than
750m (2,500 ft)”.

Note: Please also check the total counter value at PM visits, calculate the weekly CV, and if
necessary change the Weekly Output Volume setting.