Ricoh sr720 Technical Bulletin
T
Model:
NAD 30S/30/40 (1000-sheet Finisher)
echnical
ulletin
B
Date:
30-Jun-98
No:
PAGE: 1/2
6
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 thirty, are stap led in the multiple copy mode, a
couple of the bottom sheets in the stapled stack may be rolled up on the shift tray.
CAUSE
If the paper facedown-curls excessively, the stapled set of paper will not slide back all the
way to the extreme right position on the shift tray. If this happens, the lower leading edge
of the next set may catch on the trailing edge of the set already on the tray, causing a
couple of the bottom sheets to roll up.
This symptom could occur with a thick stapled set when the copies have piled up high on
the tray. Heavy paper sets will generate stronger friction with the paper set underneath,
and as the copies pile up, the angle of the top copies will level off and make sliding back
more difficult.
Note
: 1. Non-staple mode copies will not e xhibit this symptom because single sheets of
paper are delivered to the shift tray at a time.
2. Due to the nature of the copy job type 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 This symptom may occur more with A4/11” x 8.5” sideways feed. This is because the
paper can slide up the tray further than other paper sizes. (Larger sizes of paper will
not go that far because of the friction with the lower set of copies.)
If that is the case, install the new version ROM (#A6815103E). The new version ROM
decreases the exit speed of A4/11” x 8.5” sideways paper to drop the paper close to
the right frame for easy switch back. (This happens for stapling more than 11 sheets.)
T
Model:
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 1B48070001
-17 RICOH A7728070001
-22 NRG AR2807000
-26 INFOTEC 3R0780001
-55 LANIER From 1st Production
NAD 30S/30/40 (1000-sheet Finisher)
echnical
B
ulletin
Date:
30-Jun-98
No:
PAGE: 2/2
6
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