Ricoh RT35 Technical Bulletin
T
echnical
B
ulletin
RTB Correction
Reissue date :
15-Jun-98
The items in bold italics have been corrected or added.
The illustration has changed as shown below.
Model:
AD1(LCT Option)
Date:
31-Jan-98
No:
PAGE: 1/3
48A
Subject:
From:
Classification:
During an internal test, the following problems were found and some parts have been improved
from December production ’97.
SYMPTOM
1. The grounding plate (A6676151) was broken at installation.
2. Paper jam
3. Noise
CAUSE
1. W hen the LCT is installed on the main frame, the spring plate might be cracked.
2. W hen the dust rubbed off the timing belt gets between the timing pulley and the drive shaft, the
rotation of the pulley is affected and paper jams might occur.
Paper jam and Noise
QAC Field Information Dept.
Troubleshooting
Mechanical
Paper path
Other ( )
Part information
Electrical
Transmit/receive
Prepared by:
Action required
Service manual revision
Retrofit information
K.Ugaeri
3. Rotation noise from the relay roller (but t he noise level is still within specif ication)
COUNTERMEASURE
1. W hen installing the LCT, take care not to press the grounding plate too hard.
Permanent countermeasure
The shape of the grounding plate has been modified (A6676151->A6676151A) and
RCL will supply the countermeasure parts to each subsidiary.
RC : 50 sets
RE : 80 sets
RH : 20 sets
1
±
2
→
2
+1 –0.5
T
Model:
AD1(LCT Option)
echnical
B
ulletin
Date:
31-Jan-98
No:
PAGE: 2/3
48A
2. Clean the drive shaft of the timing pulleys (P7 – Index 24,
Permanent Countermeasure
To prevent this problem in the LCT , the material of the shaft and the shape of the
pulley and collar have been modified to reduce the dust from the timing belt and to
prevent the dust from getting into the pulley . RCL will supply the countermeasure
parts to each subsidiary.
RC : 100 sets
RE : 160 sets
RH : 40 sets
1. AA140627 → AA140693
2. H5154713 → A6672615
3. H5154714 → A6672616
The interchangeability for these parts is available as a combination.
Drive Shaft – Feed Roller
Timing Pulley Collar – 6x8
Timing Pulley – 22Z
25,27
}
).
X/O as a combination
A taper is added to
the collar.
Pulley
(A6672616)
The collar has been made so that a
portion of it is inserted into the pulley.
Collar
(A6672615)
Drive Shaft
(AA140693)
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