Ricoh sr730 Technical Bulletin
T
Model:
NAD 30S/30/40 (3000-sheet Finisher)
echnical
ulletin
B
Date:
30-Jun-98
No:
PAGE: 1/2
7
Subject:
From:
Classification:
Paper rolled-up on the shift tray
QAC Field Information Dept.
Troubleshooting
Mechanical
Paper path
Other ( )
Part information
Electrical
Transmit/receive
Prepared by:
Action required
Service manual revision
Retrofit information
M.Mimura
SYMPTOM
When a large number of sheets, such as fifty, are stapled in th e multiple copy mode, a
couple of the bottom sheets in the stapled stack may be rolled up on the shift tray.
CAUSE
The leading edge of the stapled set of paper tends to hang down when fed out onto the
shift tray. If there is an excessive facedown curl at the leading edge, it may catch on the
backside of the prior stack and become rolled up.
This is more evident with thick stapled sets because the curl of the upper paper will press
against the lower paper and this exaggerates the curl.
Note
: 1. Non-staple mode copies will not e xhibit this symptom as single sheets of paper
are delivered to the shift tray one at a time.
2. Due to the nature of the copy job in which this problem occurs, this symptom
would more likely occur with heavy volume users, such as copy shops, rather
than with casual users.
SOLUTION
1 The copy paper has a characteristic that one side creates more curl than the other
side. Therefore, instruct the customer to flip over the paper in the paper tray to reduce
the amount of paper curl.
For those customers who have a wide selection of paper brands, recommending a
paper brand which creates less curl might be more beneficial for the customer. (See
page 23 of the NAD Copy Reference manual for related remarks.)
2 Install the new version ROM (#A6975656B). The new version ROM is different from
the current ROM in the following ways:
2.1After the shift tray has moved from its stand-by position to the upper position, it
will start moving down 50 ms after the paper stack has actuated the finisher exit
sensor. Thus, the paper stack makes a “soft landing” on the shift tray, reducing
the chances of the paper being rolled up.
2.2The finisher exit roller speed has been increased from 600 to 700 mm/s which
matches that of the stack exit. This will prevent the le ading edge from receiving
the pressure which may encourage the face-down curl.
Note
: The statement in the Service Manual (page # A697-12) that “The speed of the
exit roller is higher than the stack feed-out belt speed.” is wrong.
T
Model:
NAD 30S/30/40 (3000-sheet Finisher)
2.3 The mode in which the shift tray receives the stapled copies at its stand-by
position after the 1,500th copy has been suspended for stapled sets of more than
35 sheets because receiving at the stand-by position may lead to a steeper paper
landing angle, causing the rolling-up.
echnical
B
ulletin
Date:
30-Jun-98
No:
PAGE: 2/2
7
Cut-in Serial Numbers
The new version ROM will be implemented into the production from July ’98. The cut-in
serial numbers are as follows:
Code Brand Cut-in Serial #s
-15 GES. US / SAVIN 1B58070001
-17 RICOH A7778070001
-22 NRG AR3807000
-26 INFOTEC 3R1780001
-55 LANIER From 1st Production
T
echnical
ulletin
B
PAGE: 1/2
Model:
Subject:
From:
Classification:
Below please find the modification history from the first production run for the Main Board
up to Suffix D for the 3000-sheet Finisher (SR730).
A6975656D
NAD 30S/30/40 (3000 Finisher)
Software Replacement Information
GTSS Field Information Dept.
Troubleshooting
Mechanical
Paper path
Other ( )
1. Occurrences of SC990
2. Defective paper exit for LG, DLT, A3 and B4 paper sizes.
3. Two staples missing when B5 size paper is stapled.
4. Stacking problems occur when paper curls during manual staple mode.
(Modification of shift tray height during manual staple mode, exit roller rotation,
speed and shift tray lowering timing)
5. When the paper curl is large during shift mode, the exit roller rolls up the paper.
(Modification of the shift tray height in the shift mode, exit roller rotation speed, and
shift tray lowering timing)
Part information
Electrical
Transmit/receive
Date:
31-Mar-99
Prepared by:
No.:
30
E. Fukuyama
Action required
Service manual revision
Retrofit information
Model Code Cut-in Serial #s
A697-15 1B58120001
A697-17 A7778110001
A697-22 AR38110281
A697-26 3R1128001
A697-55 L0328110267
A6975656C
1. When a jam occurs in the finisher, if th e jam is not removed, the stapler
motor will not shut off.
2. When the power save mode command from the main frame is re ceived, the
machine initializes.
Model Code Cut-in Serial #s
A697-15 1B58090001
A697-17 A7778090001
A697-22 AR38090001
A697-26 3R10980001
A697-55 L0328100052
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