Oki ES9476 MFP User manual

MULTIFUNCTIONAL DIGITAL COLOR SYSTEMS
Hardware Troubleshooting
Guide
ES9466 MFP/ES9476 MFP

©2016 Oki Data Corporation All rights reserved
Under the copyright laws, this manual cannot be reproduced in any form without prior written permission of Oki Data.

Preface 3
Preface
Thank you for purchasing OKI Multifunctional Digital Systems. This manual describes how to troubleshoot the
problems that could occur while you are using the equipment. Keep this manual within easy reach, and use it to
configure an environment that makes the best use of the OKI MFP’s functions.
How to read this manual
Symbols in this manual
In this manual, some important items are described with the symbols shown below. Be sure to read these items
before using this equipment.
Target audience for this manual
This is a manual that is aimed at general users and administrators.
Options
For the available options, refer to the Quick Start Guide for this equipment.
Screens in this manual
The details on the screens may differ depending on your model and how the equipment is used, such as the status
of the installed options, the OS version and the applications.
The illustration screens used in this manual are for paper in the A/B format. If you use paper in the LT format, the
display or the order of buttons in the illustrations may differ from that of your equipment.
Abbreviations in this manual
In this manual, “Dual Scan Document Feeder” is referred to as “DSDF” and “Reversing Automatic Document Feeder”
as “RADF”, and they are collectively referred to as “Automatic Document Feeder” (ADF).
Trademarks
For trademarks, refer to the Safety Information.
This equipment provides the scanning/printing function as an option. However, this optional scanning/printing
function is already installed in some models.
Indicates a potentially hazardous situation which, if not avoided, could result in death, serious
injury, or serious damage, or fire in the equipment or surrounding objects.
Indicates a potentially hazardous situation which, if not avoided, may result in minor or
moderate injury, partial damage to the equipment or surrounding objects, or loss of data.
Indicates information to which you should pay attention when operating the equipment.
Describes handy information that is useful to know when operating the equipment.
Pages describing items related to what you are currently doing. See these pages as required.

4 Preface

CONTENTS 5
CONTENTS
Preface................................................................................................................................................. 3
How to read this manual ............................................................................................................................................ 3
Chapter 1 TROUBLESHOOTING FOR THE HARDWARE
When This Screen Is Displayed................................................................................................................ 9
Messages Displayed on the Touch Panel ................................................................................................ 13
Clearing a Paper Jam........................................................................................................................... 18
Locating a paper jam ................................................................................................................................................. 18
Clearing a paper jam.................................................................................................................................................. 19
ADF.............................................................................................................................................................................. 21
Tray feeding portion .................................................................................................................................................. 27
Large Capacity Feeder ............................................................................................................................................... 28
Paper Feed Pedestal .................................................................................................................................................. 28
Trays ........................................................................................................................................................................... 29
Envelope Tray ............................................................................................................................................................ 30
Large Capacity Feeder ............................................................................................................................................... 30
MPT ............................................................................................................................................................................. 31
Automatic duplexing unit.......................................................................................................................................... 32
Paper transport path ................................................................................................................................................. 33
Fuser unit.................................................................................................................................................................... 34
Bridge Kit.................................................................................................................................................................... 36
Finisher and Hole Punch Unit.................................................................................................................................... 36
Saddle Stitch Finisher and Hole Punch Unit............................................................................................................. 42
Saddle Stitch unit of the Saddle Stitch Finisher....................................................................................................... 46
Inner Finisher and Hole Punch Unit .......................................................................................................................... 52
Clearing paper jams caused by a wrong paper size setting..................................................................................... 55
Clearing a Staple Jam .......................................................................................................................... 60
Finisher....................................................................................................................................................................... 60
Saddle Stitch unit ...................................................................................................................................................... 65
Replacing a Toner Cartridge ................................................................................................................. 67
Replacing a “Near Empty” toner cartridge ............................................................................................................... 69
Replacing the Waste Toner Box............................................................................................................. 72
Refilling With Staples .......................................................................................................................... 74
Finisher....................................................................................................................................................................... 74
Saddle Stitch unit ...................................................................................................................................................... 77
Cleaning the Inside of the Equipment.................................................................................................... 80
The Main Chargers and Slit Glass .............................................................................................................................. 80
Cleaning the Hole Punch Dust Bin ......................................................................................................... 84
Finisher / Saddle Stitch Finisher Hole Punch Unit ................................................................................................... 84
Inner Finisher Hole Punch Unit ................................................................................................................................. 84
When Printed Sheets Overflow from the Stacker.................................................................................... 87
Chapter 2 WHEN SOMETHING IS WRONG WITH THE EQUIPMENT
When You Think Something Is Wrong With the Equipment ...................................................................... 90
General operations .................................................................................................................................................... 90
Originals and paper ................................................................................................................................................... 91
Regular Maintenance........................................................................................................................... 93
INDEX .......................................................................................................................................................... 95

6 CONTENTS

1.TROUBLESHOOTING FOR THE HARDWARE
This chapter describes how to troubleshoot problems with paper, toner and other finishing processes.
This chapter also describes how to supply the paper, toner and staples.
When This Screen Is Displayed.............................................................................................9
Messages Displayed on the Touch Panel .............................................................................13
Clearing a Paper Jam ........................................................................................................18
Locating a paper jam ...........................................................................................................................................18
Clearing a paper jam............................................................................................................................................19
ADF........................................................................................................................................................................21
Tray feeding portion ............................................................................................................................................27
Large Capacity Feeder .........................................................................................................................................28
Paper Feed Pedestal ............................................................................................................................................28
Trays .....................................................................................................................................................................29
Envelope Tray ......................................................................................................................................................30
Large Capacity Feeder .........................................................................................................................................30
MPT .......................................................................................................................................................................31
Automatic duplexing unit....................................................................................................................................32
Paper transport path ...........................................................................................................................................33
Fuser unit..............................................................................................................................................................34
Bridge Kit..............................................................................................................................................................36
Finisher and Hole Punch Unit..............................................................................................................................36
Saddle Stitch Finisher and Hole Punch Unit.......................................................................................................42
Saddle Stitch unit of the Saddle Stitch Finisher.................................................................................................46
Inner Finisher and Hole Punch Unit ....................................................................................................................52
Clearing paper jams caused by a wrong paper size setting...............................................................................55
Clearing a Staple Jam .......................................................................................................60
Finisher.................................................................................................................................................................60
Saddle Stitch unit ................................................................................................................................................65
Replacing a Toner Cartridge ..............................................................................................67
Replacing a “Near Empty” toner cartridge .........................................................................................................69
Replacing the Waste Toner Box..........................................................................................72
Refilling With Staples........................................................................................................74
Finisher.................................................................................................................................................................74
Saddle Stitch unit ................................................................................................................................................77
Cleaning the Inside of the Equipment.................................................................................80
The Main Chargers and Slit Glass ........................................................................................................................80
Cleaning the Hole Punch Dust Bin ......................................................................................84
Finisher / Saddle Stitch Finisher Hole Punch Unit .............................................................................................84

1.TROUBLESHOOTING FOR THE HARDWARE
8
Inner Finisher Hole Punch Unit ...........................................................................................................................84
When Printed Sheets Overflow from the Stacker .................................................................87

When This Screen Is Displayed 9
TROUBLESHOOTING FOR THE HARDWARE
0.When This Screen Is Displayed
Various screens are displayed on the touch panel depending on the state of the equipment. This section describes
how to solve problems with some of the screen examples.
Screen Description / Remedy
A message appears on the upper
part of the screen to notify users of a
problem, etc. For the major
examples, see the following pages.
P.13 “Messages Displayed on the
Touch Panel”

1.TROUBLESHOOTING FOR THE HARDWARE
10 When This Screen Is Displayed
An incorrect paper size or “ ”
indicates an unsuccessful paper size
detection. In this case, check the
following items.
Check if the paper with an
unacceptable size is placed in the
tray.
For details about the acceptable
paper size, refer to the
Specifications Guide.
Check if the paper with a
non-standard size is placed in the
tray.
Press [Custom] to set the paper
size manually.
Check if there is too much space
between the paper and the side
and end guides of the tray.
Set the paper, the side guide and
the end guide to the appropriate
position again.
Check if [Auto (inch)] is selected
even though A/B format paper has
been placed. Check if [Auto (mm)]
is selected even though LT format
paper has been placed.
Press the button which
corresponds to the format of the
paper set in the tray and then set
the paper again.
If a different paper size is
displayed even though a standard
size paper has been placed, set
the paper size manually. To do so,
the change of the setting by the
administrator is required. For
details, refer to the MFP
Management Guide.
Screen Description / Remedy

1.TROUBLESHOOTING FOR THE HARDWARE
When This Screen Is Displayed 11
TROUBLESHOOTING FOR THE HARDWARE
The original or copy paper is
jammed. Remove it following the
guidance on the touch panel.
P.18 “Clearing a Paper Jam”
A cover is open. Check which cover
on the touch panel and then close it
securely.
Toner has run out. Replace the new
toner cartridge.
P.67 “Replacing a Toner
Cartridge”
Screen Description / Remedy

1.TROUBLESHOOTING FOR THE HARDWARE
12 When This Screen Is Displayed
The waste toner box is full. Replace
it following the guidance on the
touch panel.
P.72 “Replacing the Waste Toner
Box”
The equipment requires adjusting
by a service technician.
Contact your service representative
with the error code displayed on the
right side of the touch panel.
Never attempt to repair,
disassemble or modify the
equipment by yourself.
You could cause a fire or get an
electric shock.
Always contact your service
representative for maintenance or
repair of the internal parts of the
equipment.
Screen Description / Remedy

Messages Displayed on the Touch Panel 13
TROUBLESHOOTING FOR THE HARDWARE
0.Messages Displayed on the Touch Panel
A message appears on the upper part of the screen to notify users of a problem, etc. The major examples of problems
and how to solve them are described in the table below.
Message Problem Description Corrective Action
Close *** cover. The cover indicated by *** is
open.
Check the cover on the touch panel and close
it.
Jam in *** Paper jam has occurred inside
the equipment.
Remove the jammed paper following the
guidance displayed on the touch panel.
P.18 “Clearing a Paper Jam”
Install new *** toner cartridge No toner is left. (“***” indicates
the applicable color.)
(The colors are shown
abbreviated when two or more
toners are running out: Y:
yellow, M: magenta, C: cyan,
and K: black)
See the color indication on the touch panel
and replace the toner cartridge.
(About another 50 copies can be made after
this message appears. The number varies
depending on the conditions of copying.)
P.67 “Replacing a Toner Cartridge”
*** Toner Not Recognized
Check the toner cartridge
The toner cartridge indicated by
*** is not installed at all or
improperly so.
Install the toner cartridge correctly.
P.67 “Replacing a Toner Cartridge”
The terminal of the toner
cartridge is stained.
Wipe the terminal with a soft cloth.
The recommended toner
cartridge is not being used.
Use the recommended toner cartridge.
P.67 “Replacing a Toner Cartridge”
Check paper size setting on
control panel for tray N. Check
the direction or size of the
paper.
Paper jam has occurred
because of the mismatch
between the paper size placed
in tray N and the size registered
for the tray N in the equipment.
Just removing the jammed paper does not
prevent another paper from being jammed.
Be sure to correctly register the paper size in
the equipment.
P.55 “Clearing paper jams caused by a
wrong paper size setting”
Wait (Performing Self-check) The equipment is undergoing
maintenance to keep its
imaging quality.
Wait until the adjustment is completed and
the message disappears.
Adjusting. Wait until printing
resumed.
The equipment is performing
the adjustment of its inside
temperature.
Wait until the adjustment is completed and
the message disappears.
Time for cleaning. Open the
front cover and follow the
guidance.
The main charger, LED print
head or slit glass needs
cleaning.
Clean the main charger, LED print head and
slit glass.
P.80 “Cleaning the Inside of the
Equipment”
Check the original and set it
again
The original is jammed inside of
the ADF.
Remove the jammed original following the
guidance on the touch panel.
P.21 “ADF”
The direction or the size of the
original placed on the ADF is
incorrect.
Check the direction and the size of the
original and then replace it on the ADF. Then
reattempt the operation.
Change direction of original The orientation of the original
placed on the original glass is
incorrect.
Change the orientation of the original by 90
degrees and place it on the original glass.

1.TROUBLESHOOTING FOR THE HARDWARE
14 Messages Displayed on the Touch Panel
Cannot print this paper size
Select the other tray.
Printing was attempted but
failed. The paper could not be
output on the stacker selected
for the paper output because of
a mismatch between the paper
size and the stacker.
Delete the failed print job, select the
appropriate stacker for the paper, and
perform printing again.
For the restrictions of the paper type and the
receiving stackers, refer to the Quick Start
Guide.
Cannot print this paper type
Set the other paper type
Printing was attempted but
failed.
The paper could not be output
in the stacker selected because
of a mismatch between the
paper type and the stacker.
(Special paper, thick 4 paper or
thin paper tried to be output on
the lower receiving stacker of
MJ-1109/MJ-1110.)
Delete the failed print job, select the
appropriate stacker for the paper, and
perform printing again.
Change from this mode
Count over, cannot store
anymore
The number of originals to be
scanned has exceeded the limit
specified with the department
or user code during scanning.
Ask your administrator for details of setting
the limit for the number of copies.
Ready(*** Toner Not
Recognized)
Check the toner cartridge
The toner cartridge indicated by
*** is not installed at all or
improperly so.
Install the toner cartridge correctly.
P.67 “Replacing a Toner Cartridge”
The terminal of the toner
cartridge is stained.
Wipe the terminal with a soft cloth.
The recommended toner
cartridge is not being used.
Use the recommended toner cartridge.
P.67 “Replacing a Toner Cartridge”
Ready (Saddle Stitch Stacker
Full)
The saddle stitch stacker of the
finisher is full of paper.
Remove the paper from the saddle stitch
stacker of the finisher.
Ready (Check Saddle Stitch
Stapler)
A staple jam has occurred in the
stapler of the saddle stitch unit
or the staple sheet has not been
fed sufficiently.
Remove the top staple sheet.
P.65 “Saddle Stitch unit”
Ready (Check Saddle Stitch
Stapler)
Staples in the stapler of the
saddle stitch unit have almost
run out or have actually done
so.
Replace the staple case of the saddle stitch
unit if stapling is not performed for an output
document even though the stapling function
has been selected.
P.77 “Saddle Stitch unit”
Ready (Check Stapler) Staple jam has occurred in the
stapler of the finisher.
Remove the jammed staples.
P.60 “Clearing a Staple Jam”
Ready (Check Stapler) Staples in the stapler of the
finisher have almost run out or
have actually done so.
Replace the staple case of the finisher if
stapling is not performed for an output
document even though the stapling function
has been selected.
P.74 “Refilling With Staples”
Ready (Hole Punch Dust Bin is
Full)
Hole punch dust bin is full of
paper punchings.
Remove the paper punchings.
P.84 “Cleaning the Hole Punch Dust Bin”
Ready (Finisher Full) The receiving stacker of the
finisher is full of paper.
Remove the paper from the receiving stacker
of the finisher.
Ready (Face Down Stacker Full) The stacker of the equipment is
full of paper.
Remove the paper from the stacker of the
equipment.
Message Problem Description Corrective Action

1.TROUBLESHOOTING FOR THE HARDWARE
Messages Displayed on the Touch Panel 15
TROUBLESHOOTING FOR THE HARDWARE
Cannot copy
Check Department Counter
The number of originals to be
scanned has exceeded the limit
specified with the department
code during scanning.
Ask your administrator for details of setting
the limit for the number of copies.
Add paper No paper is left in a tray or on
the MPT.
Set paper in the tray or on the MPT. The touch
panel indicates which tray (or the MPT) has no
paper.
To set paper, refer to the Copying Guide.
Call for Service The equipment requires
adjusting by a service
technician.
Contact your service representative with the
error code displayed on the right side of the
touch panel.
Never attempt to repair, disassemble or
modify the equipment by yourself.
You could cause a fire or get an electric shock.
Always contact your service representative
for maintenance or repair of the internal parts
of the equipment.
Examine stapler in the saddle
Stitch unit
Staple jam has occurred in the
stapler of the saddle stitch unit.
Remove the jammed staples.
P.65 “Saddle Stitch unit”
Check staple cartridge in the
saddle stitch unit
Staples in the stapler of the
saddle stitch unit have almost
run out or have actually done
so.
Replace the staple case of the saddle stitch
unit if stapling is not performed for an output
document even though the stapling function
has been selected.
P.77 “Saddle Stitch unit”
Check staple cartridge Staples in the stapler of the
finisher have almost run out or
have actually done so.
Replace the staple case of the finisher if
stapling is not performed for an output
document even though the stapling function
has been selected.
P.74 “Refilling With Staples”
Examine Stapler Staple jam has occurred in the
stapler of the finisher.
Remove the jammed staples.
P.60 “Clearing a Staple Jam”
Saving power - press Power
Save button.
The equipment has entered into
the energy saving mode since it
has not been used for a certain
time.
Press [POWER SAVE] button to clear the
power saving mode.
Change tray to Correct Paper
Size
No paper suitable for the
original is set.
Place the suitable size paper for the original in
the tray.
The size of the original is not
detected correctly because the
original is sent from the ADF at a
skew.
Replace the original while aligning the side
guides of the ADF to its width so that it will be
placed straight.
Time for periodic maintenance The equipment requires
inspection and maintenance by
a service technician.
Contact your service representative for
maintenance.
Power Failure A job was interrupted by a
power failure or some other
reason.
The print or fax job may be incomplete. Press
[Job Status] to check whether any jobs are
unfinished.
To clear the messages, press the [RESET]
button twice.
Message Problem Description Corrective Action

1.TROUBLESHOOTING FOR THE HARDWARE
16 Messages Displayed on the Touch Panel
Erasing Data The Data Overwrite Enabler is
clearing the data.
This message is displayed if the Data
Overwrite Enabler is installed. You can
operate the equipment while the message is
displayed.
Check paper size setting on
control panel for MPT. Check
the direction or size of the
paper.
Paper jam has occurred
because of a mismatch between
the paper size placed in the MPT
and the size registered for the
MPT in the equipment.
Register the paper size correctly. Just
removing the jammed paper does not prevent
another paper from being jammed.
P.55 “Clearing paper jams caused by a
wrong paper size setting”
Set the paper on the MPT again. The paper placed on the MPT
jammed.
Remove the jammed paper and set the paper
again.
Check the direction or size of
the paper on the MPT and press
START
The direction or the size of the
paper placed on the MPT is
incorrect.
Check the direction and the size of the paper
and then replace it on the MPT.
The side guides of the MPT do
not fit the paper length.
Align the side guides of the MPT to the paper
length.
Reboot the machine A system-related trouble has
occurred.
Press the [POWER] button, and then
[Shutdown] or [Restart] on the touch panel.
Toner near Empty (***) Toner is running out. “***”
indicates the color.
(The colors are shown in
abbreviations when two or
more toners are running out: Y:
yellow, M: magenta, C: cyan,
and K: black)
Some toner is still left in the toner cartridge
while this message is displayed. You do not
have to replace the toner cartridge yet.
Check the color of the toner on the touch
panel and prepare the toner cartridge.
(About another 1000 copies can be made after
this message appears. Depending on the
conditions of copying, this message may not
appear even when the toner cartridge is near
empty.)
Replace the toner cartridge after the toner
has completely run out. [Install new ***
toner cartridge] is displayed at that time.
If you want to replace the toner cartridge
though some toner is still left, follow the
procedure below:
P.69 “Replacing a “Near Empty” toner
cartridge”
Black and white print is available while the
other colors has run out. Neither color nor
black and white print can be done when the
black toner has run out.
Dispose of used toner The waste toner box is full. Replace the waste toner box following the
guidance displayed on the touch panel.
P.72 “Replacing the Waste Toner Box”
Please empty hole punch waste The Hole Punch Unit dust bin is
full.
Remove the paper punchings.
P.84 “Cleaning the Hole Punch Dust Bin”
Fax line1 (or line2) is out of
order.
The 1st (or 2nd) line for the fax
unit is not working.
Contact your service representative.
Fax line1 (or line2) is not
installed.
The 1st (or 2nd) line for the fax
unit is not installed.
Contact your service representative.
Message Problem Description Corrective Action

1.TROUBLESHOOTING FOR THE HARDWARE
Messages Displayed on the Touch Panel 17
TROUBLESHOOTING FOR THE HARDWARE
Error Codes
The error codes indicating the status of the equipment may appear on the touch panel. For details, please refer to the
Software Troubleshooting Guide.
This original is copy protected An attempt is made to copy a
prohibited original.
This original cannot be copied.
DEPARTMENT Quota exceeded.
Contact the Administrator.
The copying, printing or
scanning quota to the
department has reached “0”.
For details of setting the quota, ask your
administrator.
Not enough Work Space to store
originals
Will you print out stored
originals?
Internal memory available ran
out while scanning.
To print out the data for the originals stored
(scanned) until the message appeared, press
[Yes] on the touch panel. To delete the stored
data, press [No].
USER Quota exceeded.
Contact the Administrator.
The copying, printing or
scanning quota to the user has
reached “0”.
For details of setting the quota, ask your
administrator.
USER and DEPARTMENT Quota
exceeded.
Contact the Administrator.
The copying, printing or
scanning quota to the user and
department has reached “0”.
For details of setting the quota, ask your
administrator.
Check under the Finisher
stacker and reboot the
machine.
An obstruction is placed under
the Finisher stacker.
Remove the obstruction under the Finisher
stacker and reboot the equipment.
The number of originals
exceeds the limits.
The scanned data will be
deleted.
The number of originals to be
scanned has exceeded the limit
of 1000 sheets during scanning.
(The magazine sort or page
number function is used.)
Reduce the number of originals to be
scanned, and try again.
The number of originals
exceeds the limits.
Will you copy stored originals?
The number of originals to be
scanned has exceeded the limit
of 1000 sheets during scanning.
To print out the data for the originals stored
(scanned) until the message appeared, press
[Yes] on the touch panel. To delete the stored
data, press [No].
LAN cable is not detected The LAN cable connection is not
detected.
Check the following items.
Check that the LAN cable is connected to
the equipment.
Check that there is no damage on the
connector of the LAN cable.
Check that the LAN cable is open circuited.
Check that the LAN cable is connected to
the HUB. Check that there is no damage to
the connector.
Check that the power is ON for the HUB to
which the LAN cable is connected.
Check that the settings of the
communication speed and the Ethernet
method for the equipment and the HUB are
aligned.
Message Problem Description Corrective Action

18 Clearing a Paper Jam
0.Clearing a Paper Jam
Locating a paper jam
The equipment stops copying when the original or copy paper is jammed. Paper jams are notified on the touch panel
as follows:
The paper jam symbol helps you locate the paper jam.
1. RADF or DSDF (lower) (P.21)
2. RADF or DSDF (upper) (P.21)
3. Bridge Kit (P.36)
4. Fuser unit (P.34)
5. Automatic duplexing unit (P.32)
6. MPT (P.31)
7. Tray feeding portion (P.27)
8. Large Capacity Feeder (P.28) or Paper Feed Pedestal (P.28)
9. Paper transport path (P.33)
10. Trays (P.29), Envelope Tray (P.30) or tray of the Large Capacity Feeder (P.30)
11. Saddle stitch unit (P.46)
12. Finisher (P.36, P.42, P.52)
13. Hole Punch Unit (P.36,P.42,P.52)
The picture of the hardware device shown on the touch panel differs depending on the options installed.
Error code
Error message
Paper jam symbols
Guidance for
clearing paper jams
1113 12
1
9 78
2 3 4 5 6
10

1.TROUBLESHOOTING FOR THE HARDWARE
Clearing a Paper Jam 19
TROUBLESHOOTING FOR THE HARDWARE
Clearing a paper jam
1
Clear the paper jam.
Clear the paper jam following the guidance shown on the touch panel. Press or to scroll the pages.
2
After clearing the jam, close all the opened covers.
The equipment starts the warm-up. Follow the guidance on the touch panel.
Tips on removing the jammed paper
Note the following points in removing the jammed paper.
Remove the jammed paper carefully so as not to tear it.
To avoid tearing the jammed paper, remove the paper slowly with both hands. Using force may tear the paper,
making it more difficult to remove. See also that no pieces of torn paper are left inside the equipment.
When the paper jam sign remains after removing the jammed paper:
Depending on the timing of the occurrence, no jammed paper may be found where the paper jam sign indicates. If the
sign does not disappear after you have removed the jammed paper, follow the steps as instructed on the touch panel.
Do not touch the connectors inside the equipment.
This could cause a malfunction.
Do not touch the fuser unit or the metal portion around it.
Do not touch the fuser unit or the metal portion around it when you
remove the paper jammed in the right side of the equipment. This could
burn you or the shock could cause you to get your hand injured in the
machine.
Do not touch the transfer belt.
When you remove the paper jammed in the right side of the equipment,
be sure not to touch the transfer belt. This could stain copy images.

1.TROUBLESHOOTING FOR THE HARDWARE
20 Clearing a Paper Jam
If paper jams occur frequently
The following are the common causes of paper jams. If the problem persists, check for the following situations.
An unsuitable original is placed on the ADF.
Unavailable paper with the equipment is used.
Paper sizes are not consistent between the size in a tray or the MPT and the size registered in the equipment.
All the jammed paper has not been removed.
There is too much of a gap between the paper and the side or end guide in the tray.
The amount of paper placed in a tray exceeds the limit indicated on the side guide of the tray.