Ricoh PRO C9100 Service-Handbuch

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

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

90%

120

2-Tray LCT: Blower Fan Level

70%

121

2-Tray LCT: Side Fan Level

90%

122

2-Tray LCT: Vacuum Fan Level

80%

123

2-Tray LCT: Updraft Fan Shutter

Active

124

2-Tray LCT: Side Fan Shutter

Inactive

125

2-Tray LCT: Paper Feed Position

HIGH

5 ~ 7

63.1~300

119

2-Tray LCT: Updraft Fan Level

70%

120

2-Tray LCT: Blower Fan Level

70%

121

2-Tray LCT: Side Fan Level

70%

122

2-Tray LCT: Vacuum Fan Level

80%

123

2-Tray LCT: Updraft Fan Shutter

Active

124

2-Tray LCT: Side Fan Shutter

Inactive

125

2-Tray LCT: Paper Feed Position

HIGH

105.1~163

119

2-Tray LCT: Updraft Fan Level

50%

120

2-Tray LCT: Blower Fan Level

70%

121

2-Tray LCT: Side Fan Level

70%

50%

122

2-Tray LCT: Vacuum Fan Level

80%

123

2-Tray LCT: Updraft Fan Shutter

Active

124

2-Tray LCT: Side Fan Shutter

Inactive

125

2-Tray LCT: Paper Feed Position

HIGH

80.1~105

119

2-Tray LCT: Updraft Fan Level

50%

120

2-Tray LCT: Blower Fan Level

70%

121

2-Tray LCT: Side Fan Level

70%

50%

122

2-Tray LCT: Vacuum Fan Level

80%

123

2-Tray LCT: Updraft Fan Shutter

Active

124

2-Tray LCT: Side Fan Shutter

Inactive

125

2-Tray LCT: Paper Feed Position

HIGH

LOW

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%

123

2-Tray LCT: Updraft Fan Shutter

Active

124

2-Tray LCT: Side Fan Shutter

Inactive

125

2-Tray LCT: Paper Feed Position

LOW

52.3~63

119

2-Tray LCT: Updraft Fan Level

30%

120

2-Tray LCT: Blower Fan Level

40%

70%

121

2-Tray LCT: Side Fan Level

30%

122

2-Tray LCT: Vacuum Fan Level

80%

123

2-Tray LCT: Updraft Fan Shutter

Active

124

2-Tray LCT: Side Fan Shutter

Inactive

125

2-Tray LCT: Paper Feed Position

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

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

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

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