Canon I Sensys Mf8550cdn User Guide

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Common Problems
If  you encounter problems when using the  machine, check  the  items in this section  before contacting us. If  the  problems persist, contact
your local authorized  Canon  dealer or the  Canon  help line.
Is the machine turned ON ?  Is the power cord  connected ?If  the  machine is  turned ON but does not  respond,  turn  it OFF, check  whether  the  power cord  is  connected correctly, and  turn  it
back ON.
Connecting the Power  Cord
Are  the phone  cord, LAN cable and  USB...

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Installation/Settings Problems
See Common  Problemsalso.
NOTE
Icons in the description
Problem  with the  wireless LAN connection
Problem  with the  wired LAN connection
Problem  with the  USB  connection
The machine cannot be connected  to a computer via a wireless LAN,  a wired LAN and  a USB cable at the same time.
All  three connection types cannot  be used at the  same time. The following  can be used at the  same time: a USB  cable and  a
wired LAN, or a USB  cable and  a wireless LAN....

The machine dials up  to an unintended connection destination  (if a dialup  router is  connected  to a network).
If  a dialup router  does not  need to  pass broadcast packets, set the  dialup router  so that  the  broadcast packets  will  not  pass.  If
the  dialup router  needs to  pass broadcast packets, check  whether  the  settings are  correct.
If  a DNS server  is  located  in an  external network, set the  IP  address to  be connected, not  the  host  name,  even if  connecting to
the  devices...

When  only IEEE  802.11n  is  used for  the  wireless communication,  WEP is  selected or the  WPA/WPA2 encryption method is  set
to  TKIP.
The stealth mode is  activated.
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Copying Problems
See Common  Problemsalso.
Printing results  are not  satisfactory. Paper creases or curls.
When You Cannot Print Properly
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Printing Problems
See Common  Problemsalso.
Printing results  are not  satisfactory. Paper creases or curls.
When You Cannot Print Properly
You cannot print.
Is  a printer driver  installed to  your computer  correctly?MF Driver  Installation  Guide
Printing seems to be slow.
Print  or delete  data in memory.
Printing Documents in Memory
Checking/Deleting Documents in Memory
Disabling Secure Print  is  recommended  if  you are  not  using it.
Changing the Valid Time Period  for Secured...

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Faxing/Telephone Problems (MF8580Cdw / MF8550Cdn / MF8280Cw Only)
See Common  Problemsalso.
A  fax cannot be sent.
Is  an  external phone  line  busy?  Wait until the  line  becomes free.
Has an  error  occurred?  Print  and  check  a Communication Management Report.
Communication Management  Report (MF8580Cdw  / MF8550Cdn / MF8540Cdn / MF8280Cw Only)
Is  a telephone line  set correctly?
Connecting the Telephone Line
When  sending the  fax  overseas, insert pauses in the  fax  number.
Sending...

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When You Cannot Print Properly
If  printing results are  not  satisfactory,  or paper  creases  or curls, try the  following  solutions. If  the  problems persist, contact your local
authorized  Canon  dealer or the  Canon  help line.
Smudge  Marks Appear  on  the
Bottom Edge of PrintoutsStreaks Appear  on  PrintoutsWhite Streaks Appear
Toner  Smudges and  Splatters
AppearPrintouts Are  FadedA  Portion of the Page Is Not
Printed
Print Density  Is UnevenPrintouts Are  GrayishPaper Creases
Paper...

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Printing Results Are Not Satisfactory
Dirt  inside the  machine may  affect printing results. Perform care and  cleaning  to  the  machine first.Cleaning  the Machine
Smudge  Marks Appear on the Bottom Edge of Printouts
Do you print  data without margins?
This symptom occurs if  a margin is  set to  none  in the  printer driver. A margin of 5  mm  or less around the  edge of
paper  or 10 mm or less around the  edge of envelopes is  not  printable with the  machine. Make  sure  to  have margins...

Are  you using appropriate paper?
Check usable  paper,  and  replace  with appropriate paper.
Paper
Loading Paper
Is toner  running  low ?
Check how much toner is  left, and  replace  the  toner cartridges  as necessary.
Replacing Toner  Cartridges
Printouts Are Faded
Is toner  running  low ?
Check how much toner is  left, and  replace  the  toner cartridges  as necessary.
Replacing Toner  Cartridges
Are  you using appropriate paper?
Check usable  paper,  and  replace  with appropriate paper.  Also,...