OKI MC860dn User Manual

							
Troubleshooting > 151
Dealing with unsatisfactory printing
SYMPTOMS POSSIBLE CAUSESSTEPS TO TAKE
Vertical white lines can 
be seen on the printed 
page. The  LED  head  is  dirty. Wipe the LED head with a soft, lint-free 
cloth.
The toner is low. Open the top cover and tap the  cartridge a few times to evenly 
distribute any remaining toner. If 
symptoms persist, replace the toner 
cartridge.
Foreign materials may be 
present in the image drum. Replace the image drum cartridge.
Light-shielding film of the 
image drum cartridge is dirty. Wipe the film with a soft, lint-free 
cloth.
Printed images are 
fading vertically. The  LED  head  is  dirty. Wipe the LED head with a soft, lint-free 
cloth.
The toner is low. Open the top cover and tap the  cartridge a few times to evenly 
distribute any remaining toner. If 
symptoms persist, replace the toner 
cartridge.
The paper is not suitable for 
the printer unit. Use recommended paper.
Printing is light. The toner cartridge is not  properly seated. Reinstall the toner cartridge.
The toner is low. Open the top cover and tap the  cartridge a few times to evenly 
distribute any remaining toner. If 
symptoms persist, replace the toner 
cartridge.
The paper is moist. Use paper stored in proper  temperature and humidity conditions.
The paper is not suitable for 
the printer unit. Use recommended paper.
Thickness and type of paper 
are inappropriate. Set a proper value for Media Weight 
and Media Type in the Paper Setup 
menu, or set one value thicker for 
Media Weight.
Recycled paper is being used. Set one value thicker for Media Weight  in the Paper Setup menu.
Partially faded images. 
White spots and lines 
appear in solid 
printing. Paper is moist or dry. Use paper stored in proper 
temperature and humidity conditions.
Vertical lines appear. The image drum cartridge is  damaged. Replace the image drum cartridge.
The toner is low. Open the top cover and tap the  cartridge a few times to evenly 
distribute any remaining toner. If 
symptoms persist, replace the toner 
cartridge.
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Troubleshooting > 152
Dealing with Unsatisfactory Copying
As well as the suggestions provided in “Dealing with unsatisfactory printing” on page 151 , 
ensure that the scanner unit glass is clean at all times. Refer to  “...the Document Glass” on 
page 131 .
Horizontal Lines and 
spots appear 
periodically. When the interval is about 94 
mm (4 in), the image drum 
(the green tube) is damaged 
or dirty. Wipe it lightly with a soft cloth. Replace 
the image drum cartridge when it is 
damaged.
When the interval is about 42 
mm (1.5 in), there may be 
foreign particles in the image 
drum cartridge. Open/close the top cover, and print 
again.
When the interval is about 87 
mm (3.5 in), the fuser unit is 
damaged. Replace the fuser unit.
The image drum cartridge has 
been exposed to light. Replace the image drum cartridge if 
the problem is not resolved.
White area of paper is 
lightly stained. Paper contains static. Use paper stored in proper 
temperature and humidity conditions.
Too thick paper is used. Use thinner paper.
The toner is low. Open the top cover and tap the  cartridge a few times to evenly 
distribute any remaining toner. If 
symptoms persist, replace the toner 
cartridge.
Periphery of the letters 
is smudged. The  LED  head  is  dirty. Wipe the LED head with a soft, lint-free 
cloth.
Toner comes off when 
it is rubbed. The thickness and type of the 
paper are incorrectly set. Set the correct value of Media Type 
and Media Weight in the Paper Setup 
menu or set one value thicker for 
Media Weight.
Recycled paper is used. Set one value thicker for Media Weight  in the Paper Setup menu.
Glossiness is not 
uniform. The thickness and type of the 
paper are incorrectly set. Set the correct value of Media Type 
and Media Weight in the Paper Setup 
menu or set one value lighter for Media 
Weight.
SYMPTOMS POSSIBLE CAUSESSTEPS TO TAKE
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Troubleshooting > 153
Fax Problem Checklist
If a problem occurs, read through the list of problems and solutions before calling for 
service.
The MFP will not dial a telephone number. Check the power cable and wall outlet. Make 
sure that the telephone line (not external te lephone or handset) is connected to the LINE 
socket on the back of the machine. If an extern al telephone is installed, lift the handset and 
check for a dial tone. If there is no dial to ne, there may be a problem with the telephone 
line. If there is a dial tone, the MFP may be us ing the wrong dialling method (pulse or tone) 
for the region. If alternating tones are heard in stead of dialling pulses and the region uses 
pulse dialling, change the call parameters ( see “Comm. Line” on page 59).
The display shows a communications error. This  indicates any of a number of problems:
• The MFP may be incompatible with the re mote machine, or the remote machine may 
not be able to perform the function requeste d of it such as polling or confidential 
faxing.
• The remote machine may also be out  of paper or experiencing a paper jam.
• Bad telephone line conditions can also  cause communication errors. Try sending the 
fax again and check to make sure that the  correct telephone number is being dialled.
• If a prefix number must be dialled to get  an outside line, or if the call is to an 
international destination, a pause may ne ed to be entered (use the on-screen Pause 
key) after the dial prefix or international  dialling code to tell the machine to wait for 
a dial tone. If there are frequent problems  communicating with a particular remote 
machine, try programming the telephone nu mber into a speed dial key, and then 
change the parameters for that key ( see “Dialling Options” on page 80).
• Lastly, either the local or remote machine  may require servicing. Try sending a fax to 
another location to check the local MFP.
Faxing is possible but the image of the  document printed by the remote machine 
is very poor.  If the faxed document has small type,  complex illustrations, photos, or is 
very light or very dark, try changing the fax quality and density settings ( See “Doc. Type” 
and  “Density” on page 81 ). Copy the document on the ma chine to determine how it will 
transmit. The problem may be caused by te lephone line interference. Try sending the 
document again later.
Fax sent but received messa ge was completely blank. Make sure that the document 
is loaded correctly before faxing; with text face UP in the ADF or face DOWN on the glass.
Image of received fax is very poor.  Try making a copy of a document on the local 
machine to make sure it is working properly. If  there is still a problem, contact the person 
sending the fax and ask them to change thei r fax quality and density settings. Ask the 
person to make a copy of th e document on their machine to  ensure that it is working 
properly. Then ask them to send the fax again.
Dialling was tried with a Speed Di al number but nothing happened. Make sure  that 
the Speed Dial number being used is programmed correctly.
Local MFP will not answer the  telephone or receive faxes. First check to see that the 
power cord is connected properly. Also chec k the reception mode setting of the machine 
( see “Reception Mode” on page 59 ). This MFP will not receive faxes automatically if  Auto 
Rx  is disabled ( see “Auto Rx” on page 80 ).
Documents received are light or have vert ical streaks on them, and MFP is not out 
of toner.  Gently wipe the lens surface of the MFP s LED array, and then check to see if the 
machine is working properly (see 
“...the LED Head” on page 132 ). If the MFP still does not 
work properly, remove the image drum (see  “Image Drum Replacement” on page 119), tap 
the toner cartridge, and slowly swing it 20 to 30  degrees vertically several times. Be careful 
not to let the toner leak from the cartridge. If this does not work, the image drum unit may 
need to be replaced. Contact your supplier to get a replacement.
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Troubleshooting > 154
MFP is set for delayed transmission but it did not send. Check the display to make 
sure that the MFP is set to the correct time and date ( see “Time Setup” on page 59).
MFP will not poll a remote machine.  Call the person at the remote machine and make 
sure that they have loaded do cuments and that their machine is set to polling transmission 
mode.
MFP is connected to a PBX but it is not possible to dial out.  Be certain that the dial 
prefix is entered before the telephone number  for each number dialled or programmed into 
the MFP ( see “PreFix” on page 40 ).
MFP always answers before its possib le to use the external telephone. If an 
external telephone is connected, chan ge the MFP’s ring response setting (“Ring Response” 
on page 40 ). Also check the reception mode setting of the machine ( see “Reception Mode” 
on page 59 ).
Faxes received sometimes look distorted.  If the document received is wider or longer 
than the paper loaded in the  paper tray, the machine automa tically reduces the width or 
length of the document so that  it will fit on the paper. This type of problem could also be 
communication related.
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Troubleshooting > 155
Information and Error Messages
NOTE
1. = Y, M, C or K.
2.  = Tray 1, Tray 2, Tray 3 or MP Tray.
3. mmm  = the setup of “paper supply”.
4. ppp  = the setup of “media type”.
STATUS / 
CODEMESSAGEMEANING / ACTION
Initializing Check Data Program Data Receive Error 
 An error occurs while the machine is 
receiving/processing the NIC download 
data.
%DLCODE%
1. File size error
2. Check SUM error
3. Invalid printer model number
4. Invalid module I/F version
5. Invalid FAT version
Restart the machine. (Turn it off and on 
again). 
If the code still appears, contact your 
dealer.
Initializing Check Data Program Data Write Error 
 An error occurs when writing NIC 
download data.
%DLCODE%
1. Memory allocation error
2. Download file error
3. Device allocation error
4. No device space
5. File writing failure
6. CU-F/W mismatch.
Restart the machine. (Turn it off and on 
again). 
If the code still appears, contact your 
dealer.
Initializing Inspection is required. PU Flash Error Restart the machine. (Turn it off and on 
again). 
If the code still appears, contact your 
dealer.
Initializing Inspection is required. PU Communication Error Restart the machine. (Turn it off and on 
again). 
If the code still appears, contact your 
dealer.
Initializing HDD Error
To HDD format Select [Format]
To shut down Select [Cancel] An unformated HDD is detected during 
the initializing.
Press the Format button to format the 
HDD; the unit is automatically 
rebooted.
Press the Cancel button to shut down 
the unit.
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Troubleshooting > 156
Initializing HDD Error 
To HDD format Select [Format]
To shut down Select [Cancel] Encrypted authentication files on the 
HDD are damaged and the HDD must 
be re-formatted.
Press the Format button to format the 
HDD; the unit is automatically 
rebooted.
Press the Cancel button to shut down 
the unit.
%ERRCODE%
 250
Warning  Toner Regional Mismatch The region ID of toner cartridge is not 
proper to the distribution channel.
Warning Non Genuine   Toner Toner cartridge RFID chip is not 
compatible.
Warning Error Postscript An error has been detected: • The job has a grammatical error.
• The page is complicated, and VM was used up.
Warning  Image Drum Near Life Indicates  image drum is near the end of 
it’s life. Order replacement image 
drum(s).
Warning Fuser Unit Near Life Indicates fuser is near the end of it’s  life. Order replacement fuser.
Warning Belt  Unit  Near  Life Indicates transfer belt is near the end of  it’s life. Order replacement transfer belt.
Warning Please Change Fuser Unit Notifies the life of the fuser. This is a  warning only.
Warning Please Change Belt Unit Notifies the life of the belt. This is a  warning only.
Warning  Toner Empty Toner empty.
Warning status takes effect at Cover 
Open/Close. Allows printing approx. 50 
pages (A4 5% duty, density 5%).
Warning  Toner Not Installed Notifies that the toner cartridge is not 
installed. 
Warning Please Install New   Image 
Drum Notifies the life of the drum. This is a 
warning only.
This warning appears when the cover is 
opened and closed just after the drum 
life error occurred.
Warning  Empty Tray empty. Treated as a warning until 
printing from that particular tray is 
required.
Warning File System is Write Protected An attempt to write in a read-only file.  This is a temporary warning, it remains 
until the end of the job then disappears.
Warning Memory Overflow Memory Overflow Memory overflow occurred in the collate 
print. 
STATUS / 
CODEMESSAGEMEANING / ACTION
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Troubleshooting > 157
Warning Memory OverflowPress  key Memory overflow occurred during PC 
fax job receiving. 
Press the Stop button to return to the 
default screen.
Warning Access Limitation Error Deleted Unauthorized User Data Indicates a job being cancelled due to 
no print permit:
1. A job received from a user who is 
denied printing.
2. A job received from a user who is 
denied PC faxing.
Contact your network administrator for 
help.
Warning File Erasing Indicates that a secure file is being  erased.
Warning Deleting encrypted job Indicates that an encrypted  authentication print job is being erased.
Warning Erased Data Full The log buffer was full and data was  deleted.
Warning Expired Secure Job Press  key Indicates that an applicable job has 
been automatically deleted as the 
retention period for authentication 
printing has expired.
STATUS / 
CODEMESSAGEMEANING / ACTION
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Troubleshooting > 158
Warning Disk Use Failed 
Press  key A disk error has occurred.
Press the Stop button to clear the error.
%FS_ERR%
:
0 - General error
1- Volume not available
3 - File not found
4 - No free file descriptors
5 - Invalid number of bytes
6 - File already exists
7 - Illegal name
8 - Cant del root
9 - Not file
10 - Not directory
11 - Not same volume
12 - Read only
13 - Root dir full
14 - Dir not empty
15 - Bad disk
16 - No label
17 - Invalid parameter
18 - No contig space
19 - Cant change root
20 - FD obsolete
21 - Deleted
22 - No block device
23 - Bad seek
24 - Internal error
25 - Write only
Warning   Flash Error %PUFLASH%
PU
Tray 2
Tray 3
Duplex
Warning Received invalid data. Press  key A job has been deleted due to corrupt 
data being detected by the integrity 
verification in authentication printing. 
Warning Received invalid data. Press  key An unsupported PDL command has 
been received or a spool command has 
been received without HDD.
Warning Remove the connected USB device. Unsupported USB device is connected. Indicates that an unsupported USB 
device is connected.
This message will be displayed until the 
unsupported USB device disconnected.
STATUS / 
CODEMESSAGEMEANING / ACTION
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Troubleshooting > 159
Warning Job Log Writing ErrorPress  key The job log is not registered correctly 
due to a disk access error when writing 
to the HDD.
Press the Stop button to clear the 
message from the screen.
Error Install Paper On %TRAY%
Please Set paper ( %MEDIA_SIZE%)
To cancel
Select [Cancel]. Manual paper feed is required. Manually 
insert the paper shown by 
%MEDIA_SIZE%
.
%TRAY%
MPTray
Error Login Failed The PIN you entered is invalid.
Error Incorrect Password The password you entered is invalid.
Error There is no authority to   . The PIN ID entered is not authorised to 
perform the function:
%Function%
copy
copy in color
fax
ScanToMail
ScanToUSB
ScanToLocalPC
ScanToNetworkPC
Error %TRAY% Media Mismatch
On  %TRAY%
Please Set paper ( %MEDIA_SIZE%/ 
%MEDIA_TYPE%)
To cancel
Select [Cancel]. The media size or both media size and 
media type in the tray does not match 
the print data. 
Load 
mmm/ppp  paper in tray.
%TRAY%
460: MPTray
461: Tray 1
462: Tray 2
463: Tray 3
Error Wait a Moment Message Data Processing Indicates that message data to be 
updated is being processed.
Error Wait a Moment Message Data Writing Indicates that message data to be 
updated is being written.
Error Power Off/On Message Data Written OK Indicates that message data has been 
written successfully.
STATUS / 
CODEMESSAGEMEANING / ACTION
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Troubleshooting > 160
Error Check dataMessage Data Write Error  Indicates that message data to be 
updated has failed.
%CODE% 
is a decimalvalue (one digit) 
and represents the cause of failure:
1. FAIL: Other errors.
2. DATA_ERROR: Hash check error in 
data reading/writing, or abnormal 
FLASH.
3. OVERFLOW: Downloading failure due 
to FLASH memory full at starting or 
during writing in a language file.
4. MEMORYFULL: Memory reservation 
failure.
5. UNSUPPORTED_DATA: Downloading 
data unsupported on the MFP.
Error Wait a moment Network Configuration Writing Displays during the NIC configuration 
data is storing in the flash memory, as 
the setting was changed.
Error Wait a moment Network Initializing Diplays when the NIC initialisation 
occurs, as the setting is changed.
Error No Paper On %TRAY%
Please set paper  %MEDIA_SIZE% 
To cancel
Select [Cancel]. Printing request is issued to an empty 
tray. 
%TRAY%
490: MPTray
491: Tray 1
492: Tray 2
493: Tray 3
Load media into tray to allow printing.
Error
440
441 %TRAY% 
Missing
Please close  %TRAY%.
To cancel
Select [Cancel] Indicates removal of Tay 1 which is a 
paper path when printing from Tray 2. 
Reinstall Tray 1 to allow printing.
Error
430
431 %TRAY% 
Missing
Please close  %TRAY%.
To cancel
Select [Cancel] Paper tray has been removed. Reinstall 
tray to allow printing.
%TRAY%
Tray 1
Tray 2
Tray 2
Error
420 Memory Overflow
Memory Overflow Memory capacity overflow. 
Press the on-line key to continue 
printing. 
Install expansion RAM or decrease data 
size.
STATUS / 
CODEMESSAGEMEANING / ACTION
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