OKI MB480 User Manual

							
161 • Troubleshooting
12.Open the Multi Purpose Tray.
Remove any paper that you find and then close the tray.
13. Pull out the paper tray and remove any paper from the underside of the printer. 
Ensure that all paper is stacked properly, is undamaged, and that the paper 
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162 • Troubleshooting
guides are properly positioned against the edges of the paper stack. When 
satisfied, replace the tray.
14. Close the top cover and press down firmly at both sides so that the cover latches 
closed.
15. Gently lower the scanner.
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163 • Troubleshooting
Dealing with unsatisfactory printing
SYMPTOMS POSSIBLE CAUSESSTEPS TO TAKE
Ver ti ca l  w h ite  
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 on e 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.
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164 • Troubleshooting
Dealing with unsatisfactory copying
As well as the suggestions provided in “Dealing with unsatisfactory printing” on 
page 163, ensure that the scanner unit glass is clean at all times. Refer to “...the 
document glass” on page 149.
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.
Horizontal Lines 
and spots 
appear 
periodically. When the interval is about 
94mm (4in), th
e 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 
42mm (1.5in), there may be 
foreign particles in the image 
drum cartridge. Open/close the top cover, and print 
again.
When the interval is about 
87mm (3.5in), 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 Printer menu or set 
one value thicker for Media Weight.
Recycled paper is used. Set one va lue thicker for Media Weight in 
the Printer 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 Printer menu or set 
one value lighter for Media Weight.
SYMPTOMS POSSIBLE CAUSESSTEPS TO TAKE
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165 • Troubleshooting
Fax problem checklist 
(MB470 MFP & MB480 MFP)
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 
telephone or handset) is connected to the LINE socket on the back of the machine. If 
an external telephone is installed, lift the handset and check for a dial tone. If there 
is no dial tone, there may be a problem with the telephone line. If there is a dial tone, 
the MFP may be using the wrong dialling method (pulse or tone) for the region. If 
alternating tones are heard instead of dialling pulses and the region uses pulse 
dialling, change the call parameters.
The display shows a communications error. This indicates any of a number of 
problems:
• The MFP may be incompatible with the remote machine, or the remote machine 
may not be able to perform the function  requested 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 need  to be entered 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 number into a speed dial key, and then change the 
parameters for that key.
• 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 qualit y and density settings. Copy the document 
on the machine to determine how it will transmit. The problem may be caused by 
telephone line interference. Try sending the document again later.
Fax sent but received message 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.
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166 • Troubleshooting
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 their fax quality and density setting s. Ask the person to make a copy of the 
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 Dial/ Group Dial number but 
nothing happened.
 
Make sure that the Speed Dial/ Group Dial number being used is programmed 
correctly.When dialling a two or three di git number, be sure press # or * before 
entering the number.
Documents received are light or  have vertical streaks on them, 
and MFP is not out of toner.
 
Lift the top cover and gently wipe the lens su rface of the MFP’s LED array. Then check 
to see if the toner or image drum need r eplacing (see “Replacing consumable items” 
on page 137).
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 
“Clock Adjustment” on page 57).
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  machine. Additionally, the machine must be 
programmed for PBX operation before it will work with a PBX (see “Connecting to a 
PBX” on page 67 ).
MFP always answers before it is possible to use the external 
telephone.
 
If an external telephone is connected,  change the MFP’s ring response setting. 
Faxes received sometimes look distorted. 
If the document received is wider or longer than the paper loaded in the paper tray, 
the machine automatically reduces the width or  length of the document so that it will 
fit on the paper. This type of proble m could also be communication related.
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167•Specifications
Specifications
General 
ITEMSPECIFICATION
Dimensions, W x D x H  MB460 MFP, MB470 MFP:17.6 x 17 x 19.7 inches (447 x 432 x 500 mm)
MB480 MFP:
17.6 x 17 x 20.8 inches (447 x 432 x 529 mm)
Weight, approximate MB460 MFP: 37.4 lbs. (17 kg) MB470 MFP: 40.8 lbs. (18.5 kg)
MB480 MFP: 41.9 lbs. (19 kg)
Power source 120V, 50/60 Hz ± 2%  220-240V, 50/60Hz ± 2%
Power consumption Operating:  800W max.
Normal operating: 500W 
Stand-by: 100W 
Power save mode: 10W max.
Noise Operating: 56 dBA Standby: 32 dBA
Temperature 50 to 90°F (10 to 32°C)
Humidity 20% to 80% RH
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168•Specifications
Scanning Specifications  
ITEMSPECIFICATION
Image sensor Colour CCD
Light source Cold Cathode Fluorescent Lamp (CCFL)
ADF - Simplex50 sheets (60 ~ 105 g/m
2)
Optical resolution Flatbed: 1200 x 600 dpi ADF: 1200 X 300 dpi 
Scanner life
Flatbed
ADF 50,000 pages or 5 years
240,000 pages or 5 years.
Scan area
Flatbed
ADF 105 mm x 148 mm ~ 215.9 mm x 296.9 mm
105 mm x 148 mm ~ 215.9 mm x 355.6 mm
Document size
Flatbed
ADF B5, A5, A4, Letter
B5, A5, A4, Letter, Legal 13, Legal 13.5, Legal 
14
Document thickness
Flatbed
ADF 11 mm 
60 - 105 g/m
2
File Format
Scan to Email/Server
ActkeyPDF, TIFF, JPEG
P D F,  T I F F,  J P E G ,  B M P,  P C X ,  G I F,  T G A ,  P N G ,  
WMF, EMF, Multi-PDF, Multi-TIFF
Driver TWAIN, WIA
Paper feed ADF: Face up
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169•Specifications
Copy Specifications 
ITEMSPECIFICATION
Speed ADF: 21 cpm (copies per minute), A4, 300 dpi        22 cpm, Letter, 300 dpi
Number of copies Up to 99
Resolution Scan: 600 x 600 dpi, 300 x 300 dpi Print: 600 x 600 dpi
Paper size
Flatbed
ADF B5, A5, A4, Letter
B5, A5, A4, Letter, Legal 13, Legal 13.5, Legal 
14
Density 7 levels
Copy Mode Mixed, Photo: 300 dpi Scan/ 600dpi Print Hires. Mixed, Hires. Photo: 600 dpi Scan/ 
600dpi Print
Input tray Tray 1/MP Tray/Tray 2 (optional)
Edge erase Top, Bottom, Left, Right Edge: 0 ~ 1 inch
Margin shift Bottom, Right direction: 0 ~ 1 inch
Paper saving (N-in-1) 2-up, 4-up
Collate 64 MB standard memory: 25 pages A4 (ITU- T#1)
320 MB optional memory: 50 pages A4 (ITU-
T#1)
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170•Specifications
Network Specifications 
ITEMSPECIFICATION
Connectivity Ethernet 100Base-TX/10Base-T auto-
negotiation with RJ-45 connector
Network protocol TCP/IP: Network layer -
 ARP, IPv4/v6, ICMPv4/v6
Transport layer - TCP, UDP
Application layer - LPR, FTP, TELNET, HTTP 
(except IPP), IPP, DHCP/BOOTP, SMTP, WINS, 
SNMPv1/v3, DNS, DDNS, UPnP, Bonjour, POP3, 
SNTP, WSDPrint, Kerberos
NetBEUI:
SMB, NetBIOS, CIFS, WINS
Netware:
Remote printer mode (max. 8 print servers)
Print server mode (max. 8 file server, 32 
queues)
Encrypted password support (in print server 
mode)
NetWare6J/5J/4.1J (NDS, boundary)
SNMP
ETHERTALK:
E L A P,  A A R P,  D D P,  A E P,  N B P,  Z I P,  R T M P,  A T P,  P A P  
IEEE802.1X
IEEE802.1X:
EAP-TLS, PEAP
Supported browsers Microsoft IE 5.5 or higher Netscape Navigator 6.0 or higher
Configuration 
requirement IP address 
Subnet mask
Gateway
SMTP server/POP3 server
FTP server
Web server
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