Ricoh TCRU/ORU Troubleshooting Manual
Operating Instructions
Troubleshooting: TCRU/ORU
For safe and correct use, be sure to read Safety Information before using
the machine.
TABLE OF CONTENTS
Introduction......................................................................................................................................................... 5
How to Read This Manual................................................................................................................................. 6
Symbols...........................................................................................................................................................6
Disclaimer........................................................................................................................................................6
Notes...............................................................................................................................................................6
Notes for TCRU/ORU Users......................................................................................................................... 7
1. Before You Begin
About This Manual............................................................................................................................................. 9
Names of Components....................................................................................................................................10
About the Display for Options.........................................................................................................................11
Before You Change a Setting..........................................................................................................................12
About Printing Surfaces....................................................................................................................................13
Note about Vertical and Horizontal Directions............................................................................................. 15
2. Troubleshooting Service Call Problems (SC Codes)
What Are SC Codes?...................................................................................................................................... 17
If an SC Code Appears:..............................................................................................................................17
3. Specifying and Checking Paper Settings
Adjusting Paper Settings.................................................................................................................................. 19
Paper Setting Flowchart.............................................................................................................................. 19
Improving Fusibility...................................................................................................................................... 19
Improving Transferability.............................................................................................................................22
Improving Paper Deliverability................................................................................................................... 22
4. Troubleshooting Image Quality Problems
Image Index......................................................................................................................................................23
Large Classification: Lines/Streaks.............................................................................................................23
Large classification: Spots........................................................................................................................... 27
Large classification: Full page.....................................................................................................................29
5. Image Quality Problem: Lines
Streaks...............................................................................................................................................................41
Horizontal White Streaks............................................................................................................................ 41
Vertical Black Streaks.................................................................................................................................. 42
Vertical Black (color) Streaks (2)................................................................................................................43
Vertical Black (color) Streaks (3)................................................................................................................44
1
Vertical White Streaks (1)........................................................................................................................... 45
Bands.................................................................................................................................................................47
Banding: General........................................................................................................................................ 47
Banding: 63 mm (2.4 inches) Intervals...................................................................................................... 49
Banding: 189 mm (7.5 inches) Intervals....................................................................................................51
Banding: Horizontal White Bands (S mode).............................................................................................51
6. Image Quality Problem: Spots
Spots..................................................................................................................................................................53
Black (color) Spots (1).................................................................................................................................53
Medaka (White Spots)................................................................................................................................56
7. Image Quality Problem: Full Page
Uneven Density.................................................................................................................................................59
Uneven Density: 189 mm (7.5 inches) Pitch..............................................................................................59
Uneven Density (Textured Paper)...............................................................................................................60
Mottling.........................................................................................................................................................64
Uneven Gloss...............................................................................................................................................69
Uneven Gloss: Partly....................................................................................................................................75
Dirtied Printouts.................................................................................................................................................76
Stained Paper Edges................................................................................................................................... 76
Stained Paper Edges (1)............................................................................................................................. 76
Stained Paper Edges (2)............................................................................................................................. 77
Stained Paper Edges (4)............................................................................................................................. 77
Stained Paper Edges (5)............................................................................................................................. 78
Disturbed Image...............................................................................................................................................79
Stretched Image...........................................................................................................................................79
Shrunken Image........................................................................................................................................... 80
Image Skew..................................................................................................................................................81
8. Troubleshooting Paper Delivery Problems
Frequent Paper Misfeeds.................................................................................................................................83
Messages Reporting Paper Misfeeds.............................................................................................................85
If (J033/J034/J083) Appears..................................................................................................................85
If (J097) Appears.........................................................................................................................................89
If (J099) Appears.........................................................................................................................................90
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If (J129) Appears.........................................................................................................................................90
Troubleshooting Image Quality Problems......................................................................................................91
Paper Skew.................................................................................................................................................. 91
Wrong Detection of Skew...........................................................................................................................91
Double Feeding............................................................................................................................................92
Wrong Detection of Double Feeding.........................................................................................................93
Paper Misfeeding.........................................................................................................................................95
Paper Feed Problems Affecting Image Quality..............................................................................................98
The Image Is Positioned Incorrectly............................................................................................................98
Image Scaling Error on the Side 1 of Paper..............................................................................................98
Image Scaling Error on the Side 2 of Paper..............................................................................................99
Scratches, Streaks, or Vertical Creases Appear on the Image................................................................99
Cleaning the Paper Feed Path...................................................................................................................... 101
Cleaning Paper Trays 1/2....................................................................................................................... 102
Cleaning the Paper Feed Path for Paper Trays 1/2.............................................................................. 103
Cleaning the Paper Feed Path in the Drawer..........................................................................................105
Cleaning the Paper Feed Path in the Wide LCT......................................................................................126
Cleaning the Paper Feed Path in the Multi Bypass Tray........................................................................ 127
Cleaning the Paper Feed Rollers and Paper Feed Belt in the Interposer.............................................. 127
Cleaning the Paper Path in the Buffer Pass Unit......................................................................................128
9. Post-Processing Option Troubleshooting
Finisher............................................................................................................................................................131
Delivered Sheets Are Not Stacked Properly...........................................................................................131
Large Delivered Sheets Are Not Stacked Properly................................................................................ 132
Trailing Edge of Stapled Sheets Close to the Paper Exit........................................................................ 134
Sheets Cannot Be Stapled Properly.........................................................................................................135
Misfeeding of Sheets Other Than the Cover Has Occurred..................................................................136
Paper Edges Are Stained..........................................................................................................................137
Multi-Folding Unit.......................................................................................................................................... 138
Inaccurate Folding (Folding Deviation)...................................................................................................138
Folding Deviation...................................................................................................................................... 139
Folds Stained by Multi-sheet Folding.......................................................................................................143
Z-Folding is Not Performed Properly.......................................................................................................145
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Folded Sheets Are Not Stacked Properly................................................................................................146
Ring Binding................................................................................................................................................... 148
SC756-48 Appears..................................................................................................................................148
Buffer Pass Unit...............................................................................................................................................149
The Fan Is Noisy........................................................................................................................................ 149
High Capacity Stacker.................................................................................................................................. 150
Delivered Sheets Are Severely Curled.................................................................................................... 150
Delivered Sheets Are Not Aligned...........................................................................................................152
The Machine Wrongly Detects That the Tray Is Full............................................................................... 154
The Paper Press Leaves an Impression on the Paper..............................................................................155
Paper Pressed Down Insufficiently........................................................................................................... 156
Other Post- Processing Options....................................................................................................................157
Scratched Images and Stained Paper Edges..........................................................................................157
10. Improving Throughput
Improving Throughput when Continuously Performing Black and White and Color Printing................. 159
11. Advanced Instructions
Operating Procedure for Color Calibration................................................................................................161
Start Calibrator..........................................................................................................................................161
Creating a new calibration set................................................................................................................. 162
Adjusting the Image Position of the Either Side of the Paper......................................................................163
Adjusting the Image Position on Side 1...................................................................................................163
Adjusting the Image Position on Side 2...................................................................................................166
Aligning the Image Position on Side 2 to That on Side 1 (Using a Template to Align the Image Position
on Side 1 and 2)....................................................................................................................................... 170
Envelopes....................................................................................................................................................... 178
Creases, Wavy Streaks, or Fusing Error..................................................................................................178
4
Introduction
This manual contains detailed instructions and notes on the operation and use of this machine. For your
safety and benefit, read this manual carefully before using the machine. Keep this manual in a handy
place for quick reference.
5
How to Read This Manual
Symbols
This manual uses the following symbols:
Indicates points to pay attention to when using the machine, and explanations of likely causes of paper
misfeeds, damage to originals, or loss of data. Be sure to read these explanations.
Indicates supplementary explanations of the machine’s functions, and instructions on resolving user
errors.
This symbol is located at the end of sections. It indicates where you can find further relevant information.
[ ]
Indicates the names of keys on the machine's display or control panels.
Disclaimer
Contents of this manual are subject to change without prior notice.
In no event will the company be liable for direct, indirect, special, incidental, or consequential damages
as a result of handling or operating the machine.
Notes
The manufacturer shall not be responsible for any damage or expense that might result from the use of
parts other than genuine parts from the manufacturer with your office products.
For good output quality, the manufacturer recommends that you use genuine toner from the
manufacturer.
Some illustrations in this manual might be slightly different from the machine.
Certain options might not be available in some countries. For details, please contact your local dealer.
Depending on which country you are in, certain units may be optional. For details, please contact your
local dealer.
6
Notes for TCRU/ORU Users
You can access the machine's manuals and maintenance information over the Internet. This section
describes how to access the Web page.
1. In the web browser's address bar, enter http://www.ricoh.com/support/.
2. Select your region form "Support" on the "Office Products" section.
3. Click [Knowledge Base].
4. Select [Pro C7200/X, Pro C7210/X] or [Pro C7200S/SX, Pro C7210S/SX] from
[Production Print (Cutsheet)].
5. Click [TCRU/ORU Special Menu] at the upper right corner of the screen.
6. Enter the user name and password as follows:
• User name
Enter "c7200"
• Password
Same as User name
7. Click [Log in].
8. After viewing, click [Logout].
• This manual is currently only available in English.
• If you cannot view this web page, log out, and the log in again by entering the user name and
password. You may not have logged in properly due to the data stored in cookies.
• If there is a problem, please contact your sales or service representative.
7
8
1. Before You Begin
About This Manual
If the machine will not print, does not print as expected, or exhibits any other problem, find the problem
in this manual and troubleshoot accordingly.
• Before you replace any unit:
• To prevent electrical shock, turn off the color controller on the machine control panel,
switch off the main power switch then the AC power switch, and then disconnect the
machine from the power supply.
• Allow the machine to cool for at least 30 minutes before replacing a part.
9
1
2
1
2
3
4
5
DXU800
1. Before You Begin
Names of Components
• Do not remove any covers or screws other than those explicitly mentioned in this manual. Inside
this machine are high voltage components that are an electric shock hazard. Contact your sales
or service representative if any of the machine's internal components require maintenance,
adjustment, or repair.
• Do not attempt to disassemble or modify this machine. Doing so risks burns and electric shock.
1. Development unit (Special Color or Black)
2. Fuser unit
3. Development unit (Yellow, Magenta, and Cyan)
4. Cleaning unit for intermediate transfer belt (ITB cleaning unit)
5. Paper transfer unit
10
About the Display for Options
About the Display for Options
This machine displays all of the adjustment items in the Adjustment Settings for Operators menu and
advanced settings for custom paper regardless of whether or not the items are for options. Note that any
modifications to the option settings do not take effect unless the applicable options are installed on this
machine.
• For details about the options available for this machine, see "Guide to Functions of the Machine's
Options", Preparation.
11
1. Before You Begin
Before You Change a Setting
• If the problem persists despite the setting being changed, restore the value you made a note of.
• Operating the machine with the changed setting may cause problems such as reduced print
quality.
• If the problem persists even though the setting has been changed, restore the value noted.
Operating the machine with the changed setting may cause problems, such as inferior printed
images.
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DFP406
DFP407
About Printing Surfaces
About Printing Surfaces
Side 1 is the surface of the paper printed during one-sided printing, or the surface of the first print during
duplex printing.
Side 2 is the surface of the paper printed after side 1 has been printed during duplex printing.
Single-sided printing: Printed side face down
A. Side 1
B. Paper feed direction of Side 1
Duplex printing: Printed side face down
A. Side 1
B. Paper feed direction of Side 1
C. Side 2
D. Paper feed direction of Side 2
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DFP408
DFP409
1. Before You Begin
Single-sided printing: Printed side face up
A. Side 1
B. Paper feed direction of Side 1
Duplex printing: Printed side face up
A. Side 1
B. Paper feed direction of Side 1
C. Side 2
D. Paper feed direction of Side 2
14
1
2
3
DFP311
Note about Vertical and Horizontal Directions
Note about Vertical and Horizontal Directions
In this manual, with regard to the paper feed direction, the vertical and horizontal directions are as
shown below:
1. Paper feed direction
2. Horizontal
3. Vertical
15
1. Before You Begin
16
2. Troubleshooting Service Call Problems (SC Codes)
What Are SC Codes?
If an error occurs during operation, the machine displays an SC code ("SCnnn", where "nnn" is a threedigit number). The machine stops and cannot be used when an SC code is displayed.
If an SC Code Appears:
1. Write down the SC number.
2. Turn off the main power switch.
3. Wait a few moments, then turn the machine on again.
In most cases, cycling the machine off and on will restore it to full operation.
4. If the SC code reappears, contact your service representative.
17
2. Troubleshooting Service Call Problems (SC Codes)
18
3. Specifying and Checking Paper
DXU801
Is there a problem with fusing?
Paper Delivery
Image quality in fusing and image
transfer
Is there a problem you want to solve?
Proceed to the "Improving
Fusibility" workflow.
Image position/density
Finished!
Has the problem been
resolved?
Proceed to the flowchart
"Improving Transferability".
Contact your service represen-
tative.
Specify the corresponding
settings in Adjustment Settings
for Operators and Custom
Paper Settings.
Is there a problem except for
fusing?
Proceed to the flowchart
"Improving Paper Deliverability".
No
NoNo
No
Yes Yes
Yes
Yes
Has the problem been
resolved?
Settings
Adjusting Paper Settings
Paper Setting Flowchart
Improving Fusibility
This section explains how to resolve the problem of insufficient toner fusing on printed copies.
19
3. Specifying and Checking Paper Settings
• To adjust the following settings, pre-register the type of paper in use as a custom paper. For details
about registering custom papers, see "Specifying a Custom Paper", Preparation.
Solution:
Carry out the following sequence of procedures. Terminate the sequence as soon as the problem is
resolved.
Procedure 1: Changing the fusing temperature
1. In [Advanced Settings] for the custom paper you are using, select 1232: [Fusing
Temperature], and then adjust the value in the following corresponding settings by
5°C.
• [BW/FC/FCS]
[Heat Roller Temp]
• [FCS]
[Heat Roller Temp: Clr/Sp], [Heat Roller Temp: White]
• [S]
[Heat Roller Temp: Clr/Sp], [Heat Roller Temp: White]
• [BW/FC/FCS: Fuser Setting HQ]
[Heat Roller Temp: Clr/Sp], [Heat Roller Temp: White]
• [FCS: Fuser Setting HQ]
[Heat Roller Temp: Clr/Sp], [Heat Roller Temp: White]
• [S: Fuser Setting HQ]
[Heat Roller Temp: Clr/Sp], [Heat Roller Temp: White]
2. Print the image and check toner fusion. Has the problem been resolved?
Yes Finished!
No Increase the temperature an additional 5°C.
3. Repeat Step 2.
If the problem persists even if you increase the temperature to 190°C, perform Procedure
2,"Image processing 1".
Procedure 2: Changing the print speed
This will slow down the printing to give the toner more time to fuse. However, because of this,
throughput will be reduced.
20
Adjusting Paper Settings
For details about "Print Speed setting", see "Details of Menu Items in Advanced Settings",
Adjustment Item Menu Guide.
1. In [Advanced Settings] for the custom paper you are using, select 1231: [Print
Speed], and then decrease the value in the following corresponding settings by one
step.
• [BW/FC/FCS]
[BW/FC/FCS]
• [FCS]
[Clear/Special], [White]
• [S]
[Clear/Special], [White]
• [BW/FC/FCS: Fuser Setting HQ]
[BW/FC/FCS]
• [FCS: Fuser Setting HQ]
[Clear/Special], [White]
• [S: Fuser Setting HQ]
[Clear/Special], [White]
If the present value is [High], select [Middle]. If it is [Middle], select [Low].
2. Print the image and check toner fusion. Has the problem been resolved?
Yes Finished!
No Go to the next step.
3. Is the process speed set to [Middle]?
Yes Set the process setting to [Low].
No If the problem persists, contact your service representative.
4. Print the image and check toner fusion. Has the problem been resolved?
Yes Finished!
No If the problem persists, contact your service representative.
• Changing the fusing temperature or changing the process speed may produce one or more of the
following side effects:
• Paper curling
21
Streaks and bands appear. Proceed to "Chapter 5 Image Quality
Problem: Lines".
Spots appear. Proceed to "Chapter 6 Image Quality
Problem: Spots".
Uneven thickness, stains, or
spots appear.
Proceed to "Chapter 7 Image Quality
Problem: Full Page".
What is the problem you want to solve
related to image quality?
DFP676
3. Specifying and Checking Paper Settings
• Paper misfeeding
• Blisters
• Glossy lines
• Change of gloss
• If one or more of the above side effects occurs, adjust the fusing temperature and process speed by
decreasing the fusing temperature and increasing the process speed.
• After performing the solution, it is recommended to perform the color calibration of the external
controller.
• Check the toner fusibility as follows:
• The printed image does not come off.
• The toner does not come off even if it is lightly rubbed by a nail.
• The toner does not come off even if it is rubbed by the cloth for cleaning the contact glass.
Improving Transferability
To improve transferability, try the following solution:
Improving Paper Deliverability
To improve paper deliverability, see page 83 "Troubleshooting Paper Delivery Problems".
22
4. Troubleshooting Image Quality
DFP701
DFP755
Problems
Image Index
Large Classification: Lines/Streaks
Line/streaks thinner than 1mm in width that appear either as a result of contamination or incomplete
toner transfer.
Middle classification: Lines/Streaks
A smudge or a white area inside an image, in a linear shape with 1mm or smaller width.
23
DFP754
DFP703
DFP704
DFP705
4. Troubleshooting Image Quality Problems
Small classification Sample image Description
Vertical black (color) streaks
Black (color) streaks appearing in the
paper feed direction.
Vertical white streaks
Image missing in the shape of streaks
in the paper feed direction
Horizontal black (color) streaks
Black (color) streaks appearing in the
direction perpendicular to the paper
feed direction.
• See page 42 "Vertical Black
Streaks".
• See page 43 "Vertical Black
(color) Streaks (2)".
• See page 44 "Vertical Black
(color) Streaks (3)".
• See page 45 "Vertical White
Streaks (1)".
24
Horizontal white streaks
Image missing in the shape of streaks
in the direction perpendicular to the
paper feed direction.
• See page 41 "Horizontal
White Streaks".
Small classification Sample image Description
DFP706
DFP707
DFP708
DFP756
Vertical glossy streaks
Glossy streaks appearing in the
paper feed direction.
Horizontal white streaks
Glossy streaks appearing in the
direction perpendicular to the paper
feed direction.
Image Index
Image scratches
Stains in the shape of vertical streaks
which seem to result from being
scratched by the guide plate ribs or
other parts.
Middle classification: Bands
A smudge or a white area inside an image, in a linear shape with 1mm or larger width.
25
DFP709
DFP710
DFP711
DFP712
4. Troubleshooting Image Quality Problems
Small classification Sample image Description
Jitter
Blurred area visible as bands in the
direction perpendicular to the paper
feed direction
Banding
Banding at regular intervals in the
direction perpendicular to the paper
feed direction. (Gear eyes: Color
unevenness in the same interval as
the pitch of the gear.)
Vertical white bands
White bands appearing in the paper
feed direction.
Horizontal white bands
White bands appearing in the
direction perpendicular to the paper
feed direction.
• See page 47 "Banding:
General".
• See page 49 "Banding: 63
mm (2.4 inches) Intervals".
• See page 51 "Banding: 189
mm (7.5 inches) Intervals".
26
Small classification Sample image Description
DFP713
DFP714
DFP715
DFP716
Vertical black (color) bands
Black (color) bands appearing in the
paper feed direction.
Horizontal black (color) bands
Black (color) bands appearing in the
direction perpendicular to the paper
feed direction.
Image Index
Fuzzy lines
Blurred images in the shape of
slightly winding bands in the paper
feed direction.
Roller tracks
Stains on the transport rollers
transferred to paper.
Large classification: Spots
An image quality problem either exhibiting white spots on solid areas, or black spots on the
background.
27
DFP757
DFP757
DFP717
4. Troubleshooting Image Quality Problems
White spots and Fireflies are considered different issues as the former does not consist a core in the
center of the unprinted spot.
Middle classification: Spot
White spots seen in solid image areas or black/color spots seen where there should be nothing printed.
The description "white spots" excludes those with toner cores.
28
Small classification Sample image Description
Black (color) spots
Stains are visible as crisp black
(color) spots.
• See page 53 "Black (color)
Spots (1)".
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