Toshiba f98d273 Service Note
BSI(Service Note) TOSHIBA
TOSHIBA TEC CORPORATION
2-4-1, Shibakoen, Minato-ku, TOKYO, 105-8524 JAPAN
BSI No
F98D273
SUBJECT
Method for Reduction of Noise from Polygonal Motor
Date
98/04/28
MODEL
CATEGORY
Countermeasure to field trouble
From Dec. 1997 at the factory
CONTENT
In response to field demand, there are request that the polygonal motor noise during standby is
lessened. The measures are shown below.
As the measure requires the polygonal motor to be stopped, the first copy time is delayed by approx.
4.5 sec. than the usually is the case.
Therefore, to gain understanding for the machine, it is necessary to be able to explain to the needs of
users.
Noise and Countermeasure
#
1 The noise when the
2 The noise when the
3 Except for the copy finished:
DP2460
FIELD APPLICATION
To be applied when necessary
FACTORY APPLICATION
Noise Countermeasure Method
The starting time should be
polygonal changes from a
slow speed to a high speed
during standby.
polygonal motor is rotated
slowly during standby.
After the polygonal motor,
from high speed to low speed
or high noise immediately
before switching to stop.
Note) Change with the main
motor stopping when the
copy finished.
slower, and the polygonal
motor is started during
driving.
The polygonal motor is
stopped by standby. However
if [STOP] is set, the
polygonal motor is routed
slowly during standby and
stops during finishing.
The switching period from
high speed to low speed or
stop is decreased.
UNIT
Optical
Code Setting Value
483 Change 0 -> 1
485 Change 0 -> 1
484
486
Confirm that the
setting value of each
left code is "0".
Note) It was usually
set in the initial
value.
ROM Version
This countermeasure has been already put into application from December 1997. However,
machines made before that need to have their ROM versions upgraded. Please check the ROM kits
listed below dispatched from Yanagicho Works in March to enable this upgrading to be
executed. In the case of machines which have not yet had this change applied, after using
one of the ROM kits listed below, be sure to carry out the instructions given in this BSI.
BSI No. F98D273 Page 2
Note) The ROM kits would be set to level up, they are not to be supplied as a Service Part.
Part No./Name Destination
4402371150 KIT-ROM-PG2-UC
4402371160 KIT-ROM-PG2-EU
4402371180 KIT-ROM-PG2-D
4402371190 KIT-ROM-PG2-F
4402371170 KIT-ROM-PG2-AD
Reference)
ROM kits
Component ROM Version
PMA-T220S1XXZZ
PMA-T220S2ZZ
PMA-T220M-ZZZ
XX:UC=NAD
AD=AUD,SAD,ASD
D =GSD F =FRD
EU=EUROPE EXCEPT GSD & FRD
Connected code with the setting mode (08): (Reference)
58
58
190
North America
Europe (English)
Europe (German)
Europe (French)
Australia
Code Name Mode Default
value
483 Polygonal motor
pre-running
484 Polygonal motor stops at
the auto clear
485 Rotation of the polygonal
motor during standby
486 Polygonal motor stopping
time
ALL 0 0~1 0: Pre-running
ALL 0 0~1 0: Active
ALL 0 0~1 0: Lower (standby rotation)
ALL 0 0~2 0: 15 sec.
Allowable
Input value
Contents
1: Deactivate
1: Deactivate
1: Stopped
1: 30 sec. 2: 45 sec.
* Setting mode 08"- code "484"
only used.
Loading...