Ricoh PRO C9100 Service manual

Technical Bulletin PAGE: 1/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
RTB Reissue
The items in bold and italics were corrected or added.
Supplementary Explanation on the Adjustments to Prevent No-feed and
Double-feed Jams in the Vacuum Feed LCIT
The vacuum feed LCIT is capable of feeding a versatile range of media, but is also
susceptible to paper curl by the nature of its mechanism of blowing air to separate the
sheets. This bulletin provides explanations on the adjustments to prevent double-feed and
no-feed jams, especially caused by paper curl. The main jam codes are as follows:
Jam type
Jam location
Jam code
No-feed
Upper Tray of 1st LCIT
J430
Lower Tray of 1st LCIT
J431
Upper Tray of 2nd LCIT
J445
Lower Tray of 2nd LCIT
J446
Upper Tray of 3rd LCIT
J460
Lower Tray of 3rd LCIT
J461
Jam type
Jam location
Jam code
Double-feed
Upper Tray of 1st LCIT
J470
Lower Tray of 1st LCIT
J471
Upper Tray of 2nd LCIT
J485
Lower Tray of 2nd LCIT
J486
Upper Tray of 3rd LCIT
J500
Lower Tray of 3rd LCIT
J501
Subject: Adjustments in Vacuum Feed LCIT to prevent no-feed
and double-feed jams
Prepared by: Shinnosuke Sasaki
From: 1st PP Tech Service Sec., PP Tech Service Dept.,
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety
Other ( )
Tier 2

Technical Bulletin PAGE: 2/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
Adjustments
Code
Action
J430
J431
J445
J446
J460
J461
Do the following.
1. Fan and decurl the paper, as shown.
2. Set No. 118 [Paper Feed Mode (Adjust Fan Level)] in Advanced
Settings to [Moderate Nonfdg Red. (Higher)].
3. If the above does not solve the jam, change the setting to [Max
Nonfdng Reduc. (Highest)].
If none of the above solves the jam, do the following.
If dog ears occur on the jammed paper, and you are printing onto thin
paper:
Set No. 117 [Switch Paper Load Upper Limit] in Advanced Settings to
[High].
J470
J471
J485
J486
J500
J501
Do the following.
1. Make sure the Paper Size has been set correctly, and then fan/decurl
the paper.
2. Set No.118 [Paper Feed Mode (Adjust Fan Level)] to [Moderate Dble
Fd Red. (Lower)].
If the above does not solve the jam, change this setting to [Max Dble Fd
Reduc. (Lowest)].
If none of the above solves the jam, do the following.
If the paper curl is too strong, even after decurling.
1. Set No.116 [Side Fan Shutter] to [Active].
If you are using paper with high porosity such as recycled paper:
1. Increase No. 114 [Vacuum Fan] in Advanced Settings by +10%.
If you are using small envelopes:
1. Decrease No.111 [Updraft Fan] to [0].
Tips
Burrs on the paper edges may disturb the air flow and cause feeding problems. Fan the
paper to remove the burrs.

Technical Bulletin PAGE: 3/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
Idea behind the adjustment
The Vacuum Feed LCIT blows air to the leading and side edges of the paper to separate
the topmost sheet from the stack, sucks up the sheet, and feeds with the belt. Paper with
large curls hinders this function and affects the feed performance.
Face-curl increases the risk of double-feeds, because the air flow pushes up the paper.
Face-curl
Back-curl increases the risk of no-feeds, because the air flow presses down the paper.
Back-curl
In both cases, reducing the air flow improves the situation as the force applied to the paper
reduces. For no-feed jams, increasing the vacuum power can also produce good results.

Technical Bulletin PAGE: 4/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
Adjustments in Advanced Settings for Custom Paper
The following are the adjustments available in the Advanced Settings for Customer Paper.
111 [Up Draft Fan]
Function: Blows air to the leading edge to float the paper.
112 [Blower Fan]
Function: Blows air in between the topmost sheet and the stack to separate the sheet.
113 [Side Fan]
Function: Blows air from both side fences to float the paper.
Feed Belt
Feed Belt
Side Fence

Technical Bulletin PAGE: 5/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
114 [Vacuum Fan]
Function: Sucks up the floating paper to the feed belt.
115 [Up Draft Fan Shutters]
Function: Blocks the air flow from the updraft and blower fans immediately before feeding
to positively separate the topmost sheet from the stack.
116 [Side Fan Shutter]
Function: Blocks the air flow from the side fans immediately before feeding to positively
separate the topmost sheet from the stack. This function is disabled by default,
because it delays suction of the succeeding sheet and may cause a no-feed jam.
117 [Switch Paper Load Upper Limit]
Function: Controls the position of the topmost sheet according to paper weight.
Weight 3 or lighter (thinner)
The position is set to LOW, because light paper tends to easily float.
Weight 4 or heavier (thicker)
The position is set to HIGH, because heavy paper does not easily float.
Feed Belt

Technical Bulletin PAGE: 6/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
118 [Paper Feed Mode (Adjust Fan Level)]
Function: Enables easy adjustment of the updraft fans and side fans together. For
example, selecting “Moderate Nonfdg Red. (Higher)” will increase the fan power
10% for both fans.
Selection
Updraft fans
Side fans
Max Double Feed Reduce (Lowest)
x - 20
y - 20
Moderate Double Feed Red (Lower)
x - 10
y - 10
Standard (No Adjustment)
Moderate No-feed Reduce (Higher)
x + 10
y + 10
Maximum No-feed Reduce (Highest)
x + 20
y + 20
x = current value of 111 [Up Draft Fans]
y = current value of 113 [Side Fans]
Although the fan power can be adjusted within the range 0% ~ 100%, the actual fan duties
do not go below 20%. If set to a value lower than 20%, the vacuum, side and blower fans
will operate at 20% and the updraft fan will be inactivated.
This is because fan operation becomes unstable below 20%.

Technical Bulletin PAGE: 7/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
Appendix 1: Available adjustments
Thickness
Weight
[gsm]
Adjustment Items
Default
Small sizes
(139.7mm~
147.9mm)
Large sizes
(148.0mm~)
8 and 9
300.1~400
119
2-Tray LCT: Updraft Fan Level
0%
90%
120
2-Tray LCT: Blower Fan Level
70%
70%
121
2-Tray LCT: Side Fan Level
90%
90%
122
2-Tray LCT: Vacuum Fan Level
80%
80%
123
2-Tray LCT: Updraft Fan Shutter
Active
Active
124
2-Tray LCT: Side Fan Shutter
Inactive
Inactive
125
2-Tray LCT: Paper Feed Position
HIGH
HIGH
5 ~ 7
63.1~300
119
2-Tray LCT: Updraft Fan Level
0%
70%
120
2-Tray LCT: Blower Fan Level
70%
70%
121
2-Tray LCT: Side Fan Level
70%
70%
122
2-Tray LCT: Vacuum Fan Level
80%
80%
123
2-Tray LCT: Updraft Fan Shutter
Active
Active
124
2-Tray LCT: Side Fan Shutter
Inactive
Inactive
125
2-Tray LCT: Paper Feed Position
HIGH
HIGH
4
105.1~163
119
2-Tray LCT: Updraft Fan Level
0%
50%
120
2-Tray LCT: Blower Fan Level
70%
70%
121
2-Tray LCT: Side Fan Level
70%
50%
122
2-Tray LCT: Vacuum Fan Level
80%
80%
123
2-Tray LCT: Updraft Fan Shutter
Active
Active
124
2-Tray LCT: Side Fan Shutter
Inactive
Inactive
125
2-Tray LCT: Paper Feed Position
HIGH
HIGH
3
80.1~105
119
2-Tray LCT: Updraft Fan Level
0%
50%
120
2-Tray LCT: Blower Fan Level
70%
70%
121
2-Tray LCT: Side Fan Level
70%
50%
122
2-Tray LCT: Vacuum Fan Level
80%
80%
123
2-Tray LCT: Updraft Fan Shutter
Active
Active
124
2-Tray LCT: Side Fan Shutter
Inactive
Inactive
125
2-Tray LCT: Paper Feed Position
HIGH
LOW
2
63.1~80
119
2-Tray LCT: Updraft Fan Level
30%
40%
120
2-Tray LCT: Blower Fan Level
40%
70%
121
2-Tray LCT: Side Fan Level
30%
40%
122
2-Tray LCT: Vacuum Fan Level
80%
80%
123
2-Tray LCT: Updraft Fan Shutter
Active
Active
124
2-Tray LCT: Side Fan Shutter
Inactive
Inactive
125
2-Tray LCT: Paper Feed Position
LOW
LOW
1
52.3~63
119
2-Tray LCT: Updraft Fan Level
30%
30%
120
2-Tray LCT: Blower Fan Level
40%
70%
121
2-Tray LCT: Side Fan Level
30%
30%
122
2-Tray LCT: Vacuum Fan Level
80%
80%
123
2-Tray LCT: Updraft Fan Shutter
Active
Active
124
2-Tray LCT: Side Fan Shutter
Inactive
Inactive
125
2-Tray LCT: Paper Feed Position
LOW
LOW

Technical Bulletin PAGE: 8/8
Reissued: 21-Nov-16
Model: Leo-C1a/C1b (D194/D195)
Date: 23-Feb-15
No.: RD777001b
Appendix 2: Components
Feed belt
Vacuum fan
Side fans
Updraft fans
Blower fan
Paper stack surface detection
sensor for weight 4 or heavier paper
Updraft fan shutters
Blower fan shutter
Paper stack surface detection
sensor for weight 3 or lighter paper

Technical Bulletin PAGE: 1/1
Model: Vacuum Feed LCIT RT5100
Date: 29-Jul-15
No.: RD077002
The following part was missing from the parts catalog. Please add to your parts catalog.
Old p/n
New p/n
Description
Q’ty
Int
Note
-
D7771115
BRACKET:COUPLING
1
-
Add
This bracket is used for connecting the Vacuum Feed LCIT5100, and attaches to the right side of
the Mainframe.
Subject: Part Catalog Correction Vacuum Feed LCIT RT5100
–Joint bracket
Prepared by: Takezoh Miyamoto
From: 1st PP Tech Service Sec., PP Tech Service Dept.,
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety
Other ( )
Tier 2
p/n: D7771115
p/n: D7771115

Technical Bulletin PAGE: 1/8
Model: BR-C1/BR-P1
Date: 28-Sep-15
No.: RD777003
Supplementary Explanation on the Adjustments to Prevent No-feed and
Double-feed Jams in the Vacuum Feed LCIT
The vacuum feed LCIT can feed a wide range of media, but is also susceptible to paper
curl by the nature of its mechanism of blowing air to separate the sheets. This bulletin
provides explanations on the adjustments to prevent double-feed and no-feed jams,
especially caused by paper curl. The main jam codes are as follows:
Jam type
Jam location
Jam code
No-feed
Upper Tray of 1st LCIT
J430
Lower Tray of 1st LCIT
J431
Upper Tray of 2nd LCIT
J445
Lower Tray of 2nd LCIT
J446
Jam type
Jam location
Jam code
Double-feed
Upper Tray of 1st LCIT
J470
Lower Tray of 1st LCIT
J471
Upper Tray of 2nd LCIT
J485
Lower Tray of 2nd LCIT
J486
Subject: Adjustments in Vacuum Feed LCIT to prevent no-feed
and double-feed jams for BR-C1/P1
Prepared by: J. Ohno
From: 1st PP Tech Service Sec., PP Tech Service Dept.,
Classification:
Troubleshooting
Mechanical
Paper path
Part information
Electrical
Transmit/receive
Action required
Service manual revision
Retrofit information
Product Safety
Other ( )
Tier 2