OKI B6500n User Manual

B6500 User’s Guide> 101 Printing is taking 
up a lot of time. The receive buffer is insufficient. When printing documents of 
high resolution, reduce the memory capacity of items not in 
use. 
It is recommended to disable ports not in use, and channel 
the memory to other purposes. 
Is the printer driver set to [1200dpi] on the [Graphics] tab? 
Changing the setting to [600dpi] will shorten the print time.
Online Help for the printer driver
Printing with TrueType fonts may take up printing time. 
Change...

B6500 User’s Guide> 102 Paper cannot be 
fed. 
Paper jam. 
Multiple papers 
are fed. 
Papers are fed at 
an angle. 
Paper is 
wrinkled. Is the paper correctly set? Load the paper correctly. For 
labels, transparencies or envelopes, fan them well first to 
allow air to enter between each sheet before loading. 
“ Loading Paper” (P. 40)
Is the paper damp? Replace with paper from a new ream. 
“ Loading Paper” (P. 40)
Is the correct type of paper used? Load the correct type of 
paper. 
“ Usable Paper” (P....

B6500 User’s Guide> 103 Envelope is 
wrinkled.Envelopes can get wrinkled depending on the type used. Open 
cover B of this printer and lift up the levers at both ends of the 
fuser unit. The wrinkles can be reduced. 
After printing the envelope, remember to return the levers to 
their original positions. 
Strange noise.  Is the printer placed on a flat location? Place the printer on a 
stable surface. 
Setup and Quick Reference Guide Safety Notes
Is cover A open? Close cover A securely. 
Is the paper...

B6500 User’s Guide> 104
When the Print Quality is Poor
When the print quality is poor, select the closest symptom from the 
following table to rectify the problem. 
If the print quality does not improve after carrying out the 
appropriate action, contact service. 
Symptom Reason/Action
Printing is light. 
(faded, blurred).The paper is damp. Replace with paper from a new ream. 
“ Loading Paper” (P. 40)
The drum/toner cartridge is defective/damaged or there is no 
more toner inside the cartridge. Replace...

B6500 User’s Guide> 105 Dirt appears at 
equal intervals. The feed route of the paper is stained. Print a few pages to 
remove the stains. 
The drum/toner cartridge is defective or damaged. Replace 
with a new drum/toner cartridge. 
“ Replacing the Drum/Toner Cartridge” (P. 118)
White dots 
appear in black 
filled areas. The paper used is not suitable. Load the correct type of paper. 
“ Usable Paper” (P. 36)
The drum/toner cartridge is defective or damaged. Replace 
with a new drum/toner cartridge. 
“...

B6500 User’s Guide> 106 Nothing is 
printed. Multiple sheets of paper are fed simultaneously. Fan the paper 
well and reload. 
“ Loading Paper” (P. 40)
The drum/toner cartridge is defective/damaged or there is no 
more toner inside the cartridge. Replace with a new drum/
toner cartridge. 
“ Replacing the Drum/Toner Cartridge” (P. 118)
Spots of missing 
text.This may be due to breakdown of high voltage power. Contact 
service. 
The paper is damp. Replace with paper from a new ream. 
“ Loading Paper” (P....

B6500 User’s Guide> 107 Transparencies 
and envelopes 
are not printed 
clearly. The type of transparency or envelope loaded cannot be used 
in this printer. Load the correct type of paper. 
“ Usable Paper” (P. 36)
Check that the paper type on the printer driver or the control 
panel is correctly set. 
“ Setting Paper Types” (P. 44)
The Draft Mode feature is turned on and the resolution is set 
at a low level on the printer driver. Change the settings on the 
[Detailed Settings] or [Graphics] tab of the...

B6500 User’s Guide> 108
Message List
Message List (alphabetical order) 
This section describes the messages displayed on the control panel.
Message Condition/Reason/Action
Bad Action Format error.
Bad Action Str Missing or bad action defined for job.
Bad BUFSIZE Cmd Format error on BUFSIZE command.
Bad COLUMN Cmd Format error on COLUMN command.
Bad FEntry CMD Unrecognized Form Entry command.
Bad FORMLINES Format error on FORMLINES command.
Bad Header Cmd Unrecognized Header command.
Bad LINE Cmd Format...

B6500 User’s Guide> 109 Disk Unformatted Error message displayed when unformatted disk is 
detected.
Duplex Paper jam detected. Error message displayed for Duplex 
Tr a y.
Duplex Failure Duplex Unit Failure.
End Job Confirmation prompt used when CANCEL is pressed.
Engine NV Fail Error message displayed for Engine NV Failure.
Exit Jam Paper jam detected
Face Up Failure Error message displayed for Face-Up tray unit failure.
Fa n  Fa i l u re E rr o r m es s a ge  di s pl aye d f o r  Fa n  Fa i l ur e ....

B6500 User’s Guide> 110 Net Comm Error Error Message used to report Network Interface 
Communication Failure.
Net: Error Used for display of Network Interface error code (Net1: 
Error yy)
NVRAM Failure NVRAM failure message.
Offset Tray Optional face-down output tray (offset-capable)
Offset Tray Fail Error message displayed for Offset Tray Unit Failure.
Offset Tray Full Error message displayed when optional output bin is full
Offset Tray Jam Paper jam detected. Error message displayed for Offset 
Tr a y...