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...

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...

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...

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...

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...

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...

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...

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...