Oki Printer 8c Plus User Manual

User’s Guide  
 
Contents  
Safety ....................................................................................... 4  
Symbols in this Book .............................................................. 5  
Replacing Toner Cartridges ................................................... 31  
When to Change a Toner Cartridge .................................. 31  
Replacing a Toner Cartridge............................................. 32  
Cleaning the LED Arrays ................................................. 33  
Operator Panel Menus ............................................................. 6  
Viewing and Using Menu 1 & Menu 2 .............................. 6  
Viewing and Using the User Maintenance Menu .............. 7  
Menu 1 ................................................................................ 8  
Menu 2 .............................................................................. 12  
User Maintenance Menu .................................................. 15  
Replacing Image Drums........................................................ 33  
When to Change a Drum Cartridge .................................. 34  
Changing a Drum Cartridge ............................................. 34  
Resetting Drum Count ...................................................... 35  
Replacing Waste Toner Box .................................................. 36  
Adjusting Colour Registration .............................................. 16  
Adjusting Colour Balance ..................................................... 18  
Replacing Transfer Belt......................................................... 37  
Resetting Belt Count ........................................................ 38  
Fonts ...................................................................................... 21  
Bit Mapped Fonts ............................................................. 21  
Scalable Fonts ................................................................... 21  
Using Fonts in Windows Applications ............................. 21  
HP Emulation (PCL) Symbol Sets & Fonts ..................... 22  
Replacing Fuser Oil Roller.................................................... 38  
Resetting Fuser Oil Roller Count ..................................... 39  
Replacing Fuser Unit............................................................. 40  
Resetting Fuser Count ...................................................... 41  
Paper & Other Print Media ................................................... 26  
Windows Printer Driver......................................................... 41  
Status Messages and Problem Solving.................................. 42  
Specifications ........................................................................ 44  
Index ...................................................................................... 48  
Dealing With Paper Jams ...................................................... 26  
Standard Paper Path .......................................................... 27  
Gaining Access to the Paper Path ..................................... 27  
Front Feeder and Rear Exit Paper Path ............................ 27  
Clearing a Paper Input Jam .............................................. 28  
Clearing a Paper Feed Jam ............................................... 28  
Clearing a Paper Exit Jam ................................................ 29  
User’s Guide  
3
 
Safety  
Your Oki printer has been carefully designed to give you years  
of safe, reliable performance. As with all electrical equipment,  
however, there are a few basic precautions you should take to  
avoid hurting yourself or damaging the printer:  
Be certain that your power source matches the rating listed  
on the back of the printer. If you are not sure, check with  
your dealer or with your local power company.  
Your printer has an earthed, 3-pin plug as a safety feature,  
and it will only fit into an earthed outlet. If you can not  
plug it in, chances are you have an older, non-earthed outlet;  
contact an electrician to have the outlet replaced. Do not  
use an adapter to defeat the earthing.  
Read the Setup Guide carefully. Be sure to save it for future  
reference.  
Read and follow all warning and instruction labels on the  
printer itself.  
To avoid damaging the power cable, do not put anything  
on it or place it where it will be walked on. If the cable  
becomes damaged or frayed, replace it immediately.  
Unplug the printer before you clean it. Use only a damp  
cloth; do not use liquid or aerosol cleaners.  
Place your printer on a firm, solid surface. If you put it on  
something unsteady, it may fall and be damaged; if you  
place it on a soft surface, such as a rug, sofa, or bed, the  
vents may become blocked, causing the printer to overheat.  
If you are using an extension cable or power strip with the  
printer, make sure that the total of the amperes required by  
all the equipment on the extension is less than the  
extension’s rating. The total ratings of all equipment  
plugged into the outlet should not exceed 13 amperes.  
To protect your printer from overheating, make sure all  
openings on the printer are not blocked. Do not put the  
printer on or near a heat source, such as a radiator or heat  
register. Keep it out of direct sunlight. Allow enough room  
around the printer for adequate ventilation and easy access  
to the paper trays.  
The power outlet into which you plug your printer must  
remain accessible at all times.  
Lifting the top cover exposes hot surfaces. These are clearly  
labelled. Do NOT touch them.  
Do not poke anything into the ventilation slots on the printer;  
you could get a shock or cause a fire.  
Do not use your printer near water, or spill liquid of any  
kind into it.  
OKIPAGE 8c Plus  
4
 
Aside from the routine maintenance described in this  
handbook, do not try to service the printer yourself; opening  
the cover may expose you to shocks or other hazards.  
Always contact your local dealer.  
Symbols in this Book  
This symbol marks a ‘note’. Notes are hints or tips which  
offer additional information to help you.  
Do not make any adjustments other than those outlined in  
the handbook you may cause damage requiring extensive  
repair work.  
This symbol marks a ‘caution’. Cautions are special  
notices which you should read and follow carefully to  
avoid possible damage to your equipment.  
If anything happens that indicates that your printer is not  
working properly or has been damaged, unplug it immediately  
and contact your dealer.  
This symbol marks a ‘warning’. Warnings are special  
notices which you should read and follow carefully to  
avoid potential danger to yourself or others.  
These are some of the things to look for:  
The power cable or plug is frayed or damaged.  
Liquid has been spilled into the printer, or it has been  
exposed to water.  
The printer has been dropped, or the cabinet is damaged.  
The printer does not function normally when you are  
following the operating instructions.  
This product complies with the requirements of the Council  
Directives 89/336/EEC and 73/23/EEC on the approximation  
of the laws of the member states relating to electromagnetic  
compatibility and low voltage.  
Energy Star  
As an ENERGY STAR Partner, Oki has  
determined that this product meets the  
Energy Star guidelines for energy  
efficiency.  
User’s Guide  
5
 
Viewing and Using Menu 1 & Menu 2  
Operator Panel Menus  
To display a menu, press the ON LINE key to take the printer  
OFF LINE.  
The keys on the operator panel and the LCD display provide a  
means of controlling the operation of your printer. There are  
two main menus: Menu 1 and Menu 2.  
To enter Menu 1, press and release the MENU 1 / Menu 2 key.  
The first category in Menu 1 will be displayed on the top line.  
Each menu is organised into three levels: Categories, Items and  
Settings.  
To enter Menu 2, press and hold for more than 2 seconds the  
MENU 1 / Menu 2 key. The first category in Menu 2 will be  
displayed on the top line.  
Categories divide the menus items up into related groups, or  
topics. These appear on the top line of the display.  
To advance through the available categories in either menu, press  
and release the MENU 1 / Menu 2 key. When the last category  
is displayed, pressing the MENU 1 / Menu 2 key again returns  
to the first category.  
When the required category is selected, the top line changes to  
show the current menu item.  
When the item is displayed in the top line, the current setting  
for that item is displayed in the bottom line. Each menu item  
has two or more settings associated with it.  
To select a category and view the items in that category, press  
and release the ENTER key when the required category is  
displayed.  
The currently active setting also displays the asterisk (*)  
character.  
To advance through the menu items, press the MENU 1 /  
Menu 2 key repeatedly until the required item is displayed.  
When the last item is displayed, pressing the MENU 1 / Menu 2  
key again advances to the next category.  
Note: Tray 2 only appears in Menu 1/Menu 2 if the  
optional Tray 2 is fitted to the printer.  
OKIPAGE 8c Plus  
6
 
To cycle through the available settings when a menu item is  
displayed, press the or keys to move through the available  
settings in either direction.  
Continue holding down the MENU 1 / Menu 2 key until the  
menu name (USER MNT) appears.  
Press and release the MENU 1 / Menu 2 key to cycle through  
the available items. When the item you require is displayed,  
press the ENTER key to select it.  
To choose the currently displayed setting and make it active,  
press the ENTER key. An asterisk (*) character will appear  
next to the chosen setting.  
Some user maintenance menu items can be exited by pressing  
the ON LINE key to return the printer to the ON LINE (ready)  
condition. However, to exit from some other items you will need  
to switch the printer off and back on again. (Remember to wait  
at least ten seconds before restoring power.)  
To exit the menu, press the ON LINE key to return the printer  
to the ON LINE (ready) condition.  
Viewing and Using the User Maintenance Menu  
The tables on the next several pages detail all menu items and  
the available settings, and explain how these settings control  
the operation of your printer.  
This is a special menu used for functions, such as disabling or  
enabling the operator panel controls.  
The user maintenance menu is organised in two levels: Items  
and Settings.  
To enter this menu you must first switch the printer off.  
Whenever you switch the printer off, it is a good idea to wait for  
at least ten seconds before switching it on again, to ensure that  
memory contents are properly cleared and internal power  
supplies are allowed to settle.  
Hold down the MENU 1 / Menu 2 key and switch the printer  
on.  
User’s Guide  
7
 
Menu 1  
CATEGORY  
ITEM  
SETTING  
EXPLANATION  
PERSONALITY  
EMULATION  
AUTO*  
PCL5c  
Selects emulation. Auto is standard. PCL5e or  
Adobe PostScript can be selected manually.  
ADOBE POSTSCRIPT  
TRAY SELECT  
PAPER FEED  
TRAY1*  
TRAY2  
FRONT  
Selects the standard tray to feed paper from. May  
be overridden by software application. NOTE Tray  
2 only appears in Menu 1 if the optional Tray 2 is  
fitted to the printer.  
AUTO TRAY SWITCH  
EDIT SIZE  
OFF*  
ON  
If ON, when a paper tray runs empty and another tray is  
loaded with the same stationery, the printer will  
automatically select the other tray and continue printing.  
EDIT SIZE  
CASSETTE SIZE*  
LETTER  
EXECUTIVE  
LEGAL14  
LEGAL13  
A4 SIZE  
Selects the correct ‘edit size’ for the stationery in  
the main trays. This is the printable area inside the  
physical page size.  
A5 SIZE  
A6 SIZE  
B5 SIZE  
PAPER SIZE  
FRONT  
LETTER  
EXECUTIVE  
LEGAL14  
LEGAL13  
A4 SIZE*  
A5 SIZE  
Selects the physical paper size.  
A6 SIZE  
B5 SIZE  
8
OKIPAGE 8c  
 
CATEGORY  
ITEM  
SETTING  
EXPLANATION  
MEDIA TYPE  
TRAY1  
LIGHT(59-66 g/m2)  
Selects the appropriate print media type (e.g.  
lightweight paper, normal paper, cardstock, etc.)  
MEDIUM LIGHT (67-73 g/m2)  
MEDIUM* (74-88 g/m2)  
MEDIUM HEAVY (89-104 g/m2)  
HEAVY (105-122 g/m2)  
TRAY2  
FRONT  
LIGHT(59-66 g/m2)  
Selects the appropriate print media type (e.g.  
lightweight paper, normal paper, cardstock, etc.)  
NOTE Tray 2 only appears in Menu 1 if the optional  
Tray 2 is fitted to the printer.  
MEDIUM LIGHT (67-73 g/m2)  
MEDIUM* (74-88 g/m2)  
MEDIUM HEAVY (89-104 g/m2)  
HEAVY (105-122 g/m2)  
TRANSPARENCY  
Be sure to select TRANSPARENCY when printing  
on transparent media. The printer will then process  
them more slowly.  
LIGHT(59-66 g/m2)  
MEDIUM LIGHT (67-73 g/m2)  
MEDIUM* (74-88 g/m2)  
MEDIUM HEAVY (89-104 g/m2)  
HEAVY (105-122 g/m2)  
ULTRA HEAVY (123-200 g/m2)  
For ULTRA HEAVY media, open and use the rear  
exit path so that the paper path is as straight as  
possible.  
PAPER SIZE CHECK  
PAPER SIZE CHECK  
ENABLE*  
DISABLE  
If this option is enabled, print media will be checked  
for the correct size, and a message will appear if  
the wrong size is loaded.  
COPIES  
COPIES  
1* - 999  
Selects the number of copies to be printed.  
EURO SIGN  
EURO SIGN  
ENABLE  
DISABLE*  
Used in certain non-Windows applications to enable  
printing of the European currency symbol.  
FONTS & SYMBOLS  
(PCL emulation only)  
FONT SOURCE  
RESIDENT  
DOWNLOADED  
FLASH  
Selects the appropriate source for internal printer  
fonts. If you have not added optional extra fonts in  
additional memory or downloaded soft fonts, only  
the RESIDENT choice will appear.  
User’s Guide  
9
 
CATEGORY  
ITEM  
SETTING  
EXPLANATION  
FONTS & SYMBOLS  
(Cont)  
FONT No.  
I000*  
Selects the appropriate font from the internal font  
set to use for received text files. These may be  
identified by printing the font list from the operator  
panel.  
FONT PITCH  
SYMBOL SET  
10.00 CPI*  
Roman-8*  
Sets the horizontal character spacing in characters  
per inch. Adjustable in steps of 0.01 CPI.  
Selects the symbol set to be used for printing. A  
wide range of character sets in a number of  
European languages are available from this menu  
item. A full list appears later under Symbol Sets  
and Fonts.  
PAGE LAYOUT 1  
(PCL emulation only)  
A4 PRINT WIDTH  
WHITE PAGE SKIP  
CR FUNCTION  
78 COLUMN*  
80 COLUMN  
Determines the number of characters printed on a  
line before the printer will force a line break.  
OFF*  
ON  
Selects whether blank pages are included in the  
output or suppressed (skipped).  
CR*  
CR + LF  
Determines whether a received carraiage return  
character also moves the print position down to the  
next line. Most applications achieve this function by  
sending a line feed character after the carriage  
return, but if lines of text appear to overprint, select  
CR+LF.  
LF FUNCTION  
LF*  
LF + CR  
Determines whether a received line feed character  
also moves the print position to the beginning of  
the next line. Most applications achieve this function  
by sending a carriage return character before the  
line feed, but if consecutive lines of text appear to  
stagger across the page, select CR + LF.  
10  
OKIPAGE 8c  
 
CATEGORY  
ITEM  
SETTING  
EXPLANATION  
TRUE BLACK  
(PCL emulation only)  
TRUE BLACK  
OFF*  
ON  
Determines whether black image areas print using  
a mixture of primary colours (OFF) or only black  
toner (ON).The OFF setting results in glossy black,  
the ON setting results in matt black. This setting  
affects picture images only, not plain text.  
PAGE LAYOUT 2  
(PCL emulation only)  
ORIENTATION  
PORTRAIT*  
LANDSCAPE  
Selects which way round the page prints. Portrait is  
tall, landscape is wide.  
LINES PER PAGE  
64 LINES*  
Selects the standard number of lines per page.This  
figure is automatically adjusted when orentation is  
changed, to preserve the line spacing.  
HOST INTERFACE  
PARALLEL  
HSP  
ENABLE*  
DISABLE  
Makes the parallel interface active or inactive.  
ENABLE*  
DISABLE  
Makes the HSP (e.g. network interface card), if  
installed, active or inactive.  
User’s Guide  
11  
 
Menu 2  
CATEGORY  
ITEM  
SETTING  
EXPLANATION  
COLOR REG ADJUST  
COLOR REG ADJUST  
EXECUTE  
This item enters the colour registration adjustment  
routine. Executing this item prints a colour registration  
chart and moves automatically to the first of nine  
adjustable settings for possible manual correction. This  
procedure is documented separately.  
COLOR BALANCE  
COLOR BALANCE  
Adjusts the print density of CMYK to achieve optimum  
colour balance for the paper in use. this feature is  
documented in detail later in this manual.  
ENGINE CNT RESET  
CYAN DRMCNT RESET  
MAGENTA DRMCNT RESET  
YELLOW DRMCNT RESET  
BLACK DRMCNT RESET  
FUSER COUNT RESET  
BELT COUNT RESET  
Resets the page count for each consumable unit (image  
drums, belt, etc.) to zero after installing a new unit. To  
reset, select appropriate option and press the ENTER  
key.  
OIL ROLLER CNT RESET  
SETTING  
-1, -2, 0, +1, +2  
Adjusts internal settings to compensate for variations in  
humidity. In environments of high temperature and  
humidity if some feint printing occurs, increase setting.  
In environments of low temperature and humidity if black  
or white spots appear, decrease setting.  
12  
OKIPAGE 8c  
 
CATEGORY  
SETTING  
SETTING  
EXPLANATION  
AUTO OPERATION  
AUTO CONTINUE  
OFF*  
ON  
The printer can recover from a memory overflow or print  
overrun automatically after about 15 seconds if set to  
ON, otherwise you will need to press the Recover key.  
WAIT TIME OUT  
OFF*  
Most computer software will send a form feed character  
at the end of the print job so that the last page is ejected.  
If it does not, the printer can automatically eject the last  
page after a period of inactivity.  
5-90*-300 SECONDS  
MANUAL TIME OUT  
POWER SAVING  
OFF  
30 SEC  
60 SEC*  
This setting applies to PostScript operation only (when  
installed). It determines how long the printer will wait for  
a sheet to be inserted in the manual paper feeder.  
POWER SAVING  
0 SEC  
8 MIN*  
DISABLE  
When this function is active, power to the fuser is turned  
off to conserve energy. A slightly longer delay will occur  
before the next job prints, to allow the fuser to warm up  
again.  
LOW TONER  
LOW TONER  
ON*  
OFF  
This setting determines whether the printer will remain  
on-line (ON) or go off-line (OFF) when one of the toner  
cartridges has only enough toner left for about 100 pages.  
CLEARABL WRNINGS  
CLEARABL WRNINGS  
ON*  
JOB  
Many messages which may appear from time to time  
can be cleared by pressing the Recover key if this  
function is ON. If it is set to JOB, the host computer may  
be able to clear such warnings by downloaded  
commands. This setting is not relevant when using  
PostScript emulation.  
ERROR REPORT  
OFF*  
ON  
In PostScript mode this setting determines whether an  
error report will be printed when an error has occurred.  
User’s Guide  
13  
 
CATEGORY  
ITEM  
SETTING  
EXPLANATION  
PARALLEL I/F  
PARALLEL SPEED  
HIGH*  
MEDIUM  
Most modern PCs can download data at very high  
speed. If you experience data corruption on printed  
pages, reduce the setting to MEDIUM.  
BI-DIRECTION  
I-PRIME  
ENABLE*  
DISABLE  
The printer can send status information back to the  
computer. You will need a printer data cable  
compliant with IEEE1284 to use this feature.  
OFF*  
ON  
When ON, this feature enables your computer to  
reset the printer by toggling the state of the I-PRIME  
line on the data interface.  
OKI HSP  
Refer Explanation  
Refer Explanation  
This category appears if a network card has been  
fitted to the printer. The ITEM and SETTING that  
appear under Menu 2 will depend on the type of  
network the printer is connected to.  
LANGUAGE  
LANGUAGE  
LANDESSPRACHE  
LANGAGE  
LINGUAGGIO  
IDIOMA  
SPRÅK  
MENYSPRÅK  
SPROG  
ENGLISH*  
DEUTSCH  
FRANCAIS  
ITALIANO  
CASTELLANO  
SVENSKA  
NORSK  
This settings determines which language is used  
for LCD messages and menu printing.  
DANSK  
TAAL  
LiSAN  
NEDERLANDS  
TÜRKÇE  
LINGUAGEM  
JĘZYK  
PORTUGUÊS  
POLSKI  
14  
OKIPAGE 8c  
 
User Maintenance Menu  
ITEM  
SETTING / ACTION  
EXPLANATION  
MENU  
RESET  
Resets all Menu 1 settings to factory defaults.  
HEX DUMP  
Prints received data in ASCII HEX format (e.g. Ais printed as 41, Bas  
42, etc.). Used by programmers and systems specialists such as network  
administrators. When data length exceeds one page, that page will print and  
eject automatically. When data is less than one page, take the printer OFF  
LINE and press the Form Feed key to print and eject the page. To exit this  
mode the printer must be switched off.  
RECEIVE BUFFER  
OP MENU  
AUTO*, 8KB-1MB  
Sets the size of the data receive buffer.  
ENABLE  
DISABLE  
Can disable the operator panel controls so that users cannot change menu  
settings.  
X ADJUST  
Y ADJUST  
-2.00 ~ +2.00  
-2.00 ~ +2.00  
Adjusts the position printed image on the page horizontally (X) or vertically  
(Y) in increments of 0.25mm. Any part of the printed image which is moved  
out of the printable page area will be clipped. Useful for accurate print  
alignment on pre-printed forms.  
User’s Guide  
15  
 
Adjusting Colour Registration  
Each of the four image drums is responsible for producing that  
part of the printed image corresponding to its particular colour.  
The three primary colours and black are mixed in various  
proportions to obtain other colours.  
3. Press the ENTER key. The display will show  
INITIALIZING for a few seconds and then PRINT  
PATTERN.  
After a short delay the registration test pattern will emerge.  
Of course, it is essential that each image drum cartridge produces  
its part of the printed image at exactly the right place on the  
page relative to each of the others. If one cartridge, for example  
yellow, is slightly misaligned you will notice slight traces of  
yellow at the edges of other colours where yellow should not  
appear. This very precise alignment is known as colour  
registration.  
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
1
2
3
4
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
1
2
3
4
#1  
#4  
#7  
#3  
#6  
#2  
#5  
5
6
7
5
6
7
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
1
2
3
4
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
1
2
3
4
If you notice any symptoms like that described above, you can  
easily correct colour registration using the operator panel controls  
on your printer. These adjustments align the three colour  
cartridges precisely to the black cartridge. Your printer has a  
built-in test pattern to help you.  
5
6
7
5
6
7
1. Press the ON LINE key if necessary to take the printer  
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
1
2
3
4
-7  
-6  
-5  
-4  
-3  
-2  
-1  
0
1
2
3
4
OFF LINE.  
#8  
#9  
2. Press and hold the MENU 1 / Menu 2 key until the message  
COLOR REG ADJUST appears in the display panel, then  
release the button.  
5
6
7
5
6
7
OKIPAGE 8c Plus  
16  
 
Although this page at first appears complicated, upon  
examination you will see that it actually has 9 areas which  
are virtually identical. There are three adjustments for each  
colour, and these adjustments are simply repeated. The  
whole process should take no more than about 10 minutes.  
The rest of the 9 settings are similar. Although this may at  
first seem a little complicated, by the time you have  
completed 2 or 3 settings it will become fairly a simple and  
straight forward procedure to adjust colour registration.  
You may find colour registration adjustment quicker and  
easier if you examine all nine areas first, making a note in  
each area of the test pattern of any numerical adjustment  
needed (simply write nothing in the areas which do not  
need adjustment). You can then speed through the nine  
adjustments, entering the values you have noted.  
Each area shows boxed sections, most of which have some  
colour inside them. Ideally, the centre boxes — those  
corresponding to the numbers +2 to –2 should be almost  
free of colour, like the box shown by itself, which contains  
no colour at all.  
Once the test pattern has appeared the printer displays  
ADJUST #1 ready for adjustment. This relates to area 1 on  
the test pattern.  
-7  
-6  
-5  
-4  
-3  
-2  
4. Examine area #1 on the test pattern closely and identify  
which of the numbered boxes contains no colour (or which  
contains the least colour). That number is the setting which  
should be entered on the printer menu. Use the or →  
keys to increment or decrement the setting if a number other  
than 0 is required. When the display shows the number you  
want, press the ENTER key to enter it. An asterisk (*) will  
appear in the display.  
#1  
-1  
0
1
2
3
4
5
6
7
5. Press the MENU 1 / Menu 2 key to move forward to  
ADJUST #2.  
User’s Guide  
17  
 
When you have completed the 9th setting and pressed the  
MENU 1 / Menu 2 key to move on, the display will read  
PRINT EXECUTE.  
Adjusting Colour Balance  
Your printer uses three primary colours plus black mixed in  
appropriate proportions to print images in a wide range of  
colours. The relative density of each primary colour determines  
the actual colour printed. This property is known as colour  
balance.  
6. Press the ENTER key to print a new test pattern and  
compare the results.  
You may need to repeat the 9 adjustments 2 or 3 times to  
achieve accurate alignment, since they are interdependent.  
However, the whole process can be completed in about 10  
minutes, and should not often need readjustment.  
Although the printer and its consumables are all manufactured  
to very high standards of precision, very small variances in  
manufacture, as well as variations in paper composition and  
printing environment, can cause minor shifts in colour balance  
to occur from time to time.  
You can easily make fine adjustments to colour balance using  
the operator panel controls on your printer. Your printer has a  
built-in test pattern to help you.  
Since colour balance is affected by the particular paper  
you will print on, you should load that paper type before  
making these adjustments.  
1. Press the ON LINE key if necessary to take the printer  
OFF LINE.  
2. Press and hold the MENU 1 / Menu 2 key until the message  
COLOR REG ADJUST appears in the display panel, then  
release the button.  
OKIPAGE 8c Plus  
18  
 
3. Momentarily press and release the MENU 1 / Menu 2 key  
so that the message PRINT PATTERN COLOR BALANCE  
is displayed.  
5. Examine each of the coloured circles carefully to determine  
which one is most closely matched in colour to the large  
area A, then make adjustments as described in the next step.  
4. Press the ENTER key. After a short delay the colour balance  
test pattern will emerge, and the printer will enter its  
adjustment mode.  
6. Each primary colour and its current setting is displayed in  
turn. Use the or keys to increase or decrease the setting  
if required, then press the ENTER key to enter it. An asterisk  
(*) will appear in the display.  
The test pattern contains a large rectangular area marked A  
and 7 coloured circles, marked Bc, Bm, By, Br, Bg, Bb and  
Bk.  
Bc Reduce cyan setting by 1. If cyan is already set to –2,  
then increase magenta and yellow settings by 1.  
Bm Reduce magenta setting by 1. If magenta is already  
set to –2, then increase cyan and yellow settings by 1.  
By Reduce yellow setting by 1. If yellow is already set to  
–2, then increase cyan and magenta settings by 1.  
Br Increase cyan setting by 1. If cyan is already set to +2,  
then reduce magenta and yellow settings by 1.  
Bg Increase magenta setting by 1. If magenta is already  
set to +2, then reduce cyan and yellow settings by 1.  
Bb Increase yellow setting by 1. If yellow is already set  
to +2, then reduce cyan and magenta settings by 1.  
Bk No adjustment is necessary.  
Users Guide  
19  
 
7. Press the MENU 1 / Menu 2 key to move forward to the  
next primary colour.  
When you have completed the last setting and pressed the  
MENU 1 / Menu 2 key to move on, the display will read  
PRINT EXECUTE.  
8. Press the ENTER key to print a new test pattern and  
compare the results.  
You may need to repeat these adjustments 2 or 3 times to  
achieve optimum colour balance.  
9. After the new test pattern has been printed the display will  
show EXIT. Press the ENTER key to exit from this  
adjustment, or the MENU 1 / Menu 2 key to repeat the  
procedure.  
OKIPAGE 8c Plus  
20  
 
Fonts  
Scalable Fonts  
Your printer supports both bitmapped and scalable fonts in a  
wide range of character sets for use in a number of European  
languages.  
These are stored as outline curves represented by mathematical  
formulae, and may be scaled larger without loss of print  
resolution.  
You can see a list and printed examples of all the fonts resident  
in the printer by printing a font list.  
When scalable fonts are used in a document a temporary bit  
map of each character is created in a special part of the printer’s  
memory called the font cache. This bit map is produced at the  
full operating resolution of the printer, either 300 or 600dpi,  
depending on which is currently selected, so no jagged edges  
are apparent.  
To print the font list:  
1. Press the ON LINE key to take the printer OFF line.  
2. Press and hold the Print Fonts key for more than 2 seconds,  
then release. Press the or key to select PCL5c or Adobe  
Postscript fonts and then press the ENTER key. After a  
short delay a list of all the selected fonts, together with  
examples of what they look like, will emerge.  
Examples of resident scalable fonts are Courier, CG Times and  
Univers. There are many other resident fonts stored in your  
printer, as you will see when you print the font list.  
Using Fonts in Windows Applications  
If you run Windows on your computer you will be familiar with  
the selection of different fonts within your documents.  
Bit Mapped Fonts  
These are character shapes stored as a collection of dots (bits).  
They are stored in a fixed size. If you print enlarged versions  
you will see jagged edges around the characters, due to the  
enlarged dots.  
Most Windows applications use TrueType fonts, a scalable font  
technology pioneered byApple Computer Corp. Most TrueType  
fonts in Windows documents will download to the printer  
automatically as they are required. However, if you choose the  
printer’s resident fonts, your documents will generally print  
faster and use less printer memory.  
Examples of resident bit mapped fonts are LinePrinter, OCR-  
A, OCR-B and UPSZIP (bar codes).  
Users Guide  
21  
 
HP Emulation (PCL) Symbol Sets & Fonts  
The following tables indicate which fonts are available for each symbol set in HP LJ5 Emulation mode.  
Typeface  
CG Times Courier  
/ Univers  
Letter  
Arial /  
Symbols Wingdings LinePrinter USPS ZIP OCR-A,B  
Other  
Fonts  
Gothic TimesNew  
#
Symbol set  
Roma21n-8  
ISO-8859/1 Latin1(ECMA-94) ISO L1  
LCD Indication  
ID  
MicroType MicroType MicroType MicroType MicroType TrueType Bitmap  
Bitmap  
Bitmap MicroType  
1
Roman-8  
8U  
0N  
10U  
11U  
12U  
1U  
2U  
1E  
0U  
3S  
0S  
0K  
0I  
2
3
4
5
6
7
8
9
PC-8  
PC-8  
PC-8 Danish/Norwegian  
PC-850  
PC-8 Dan/Nor  
PC-850  
Legal  
Legal  
ISO-2 IRV  
ISO-2 IRV  
ISO-4 UK  
ISO-4 United Kingdom  
ISO-6 US ASCII  
ISO-6 ASC  
ISO-10 S/F  
ISO-11 Swe  
ISO-14 JASC  
ISO-15 Ita  
ISO-16 Por  
ISO-17 Spa  
ISO-21 Ger  
ISO-25 Fre  
ISO-57 Chi  
ISO-60 Nor  
ISO-61 Nor  
ISO-69 Fre  
ISO-84 Por  
10 ISO-10 Swedish/Finnish  
11 ISO-11 Swedish:names  
12 ISO-14 JIS ASCII  
13 ISO-15 Italian  
14 ISO-16 Portuguese  
15 ISO-17 Spanish  
4S  
2S  
1G  
0F  
16 ISO-21 German  
17 ISO-25 French  
18 ISO-57 Chinese  
2K  
0D  
1D  
1F  
19 ISO-60 Norwegian v1  
20 ISO-61 Norwegian v2  
21 ISO-69 French  
22 ISO-84 Portuguese  
5S  
OKIPAGE 8c  
22  
 
HP Emulation (PCL) Symbol Sets & Fonts (continued)  
Typeface  
CG Times Courier  
/ Univers  
Letter  
Arial /  
Symbols Wingdings LinePrinter USPS ZIP OCR-A,B  
Other  
Gothic TimesNew  
Fonts  
#
Symbol set  
LCD Indication  
ID  
MicroType MicroType MicroType MicroType MicroType TrueType Bitmap  
Bitmap  
Bitmap MicroType  
23 ISO-85 Spanish  
24 HP German  
ISO-85 Spa  
German  
6S  
0G  
25 HP Spanish  
Spanish  
1S  
26 ISO Dutch  
ISO Dutch  
Roman Ext  
ISO Swedish 1  
ISO Swedish 2  
ISO Swedish 3  
IBM-437  
90D  
0E  
27 Roman Extension  
28 ISO Swedish1  
29 ISO Swedish2  
30 ISO Swedish3  
31 IBM Code Page 437  
32 IBM Code Page 850  
33 IBM Code Page 860  
34 IBM Code Page 863  
35 IBM Code Page 865  
36 PC Set1  
91S  
92S  
93S  
2038Z  
2039Z  
2037Z  
2036Z  
2035Z  
8Q  
IBM-850  
IBM-860  
IBM-863  
IBM-865  
PC Set1  
37 PC Extension US  
38 PC Extension D/N  
39 PC Set2 US  
PC Ext US  
PC Ext D/N  
PC Set2 US  
PC Set2 D/N  
VN Math  
9Q  
2033Z  
2034Z  
2032Z  
6M  
40 PC Set2 D/N  
41 Ventura Math  
42 Ventura International  
43 Ventura US  
VN Intl  
13J  
VN US  
14J  
44 PS Math  
PS Math  
5M  
45 PS Text  
PS Text  
10J  
Users Guide  
23  
 
HP Emulation (PCL) Symbol Sets & Fonts (continued)  
Typeface  
CG Times Courier  
/ Univers  
Letter  
Arial /  
Symbols Wingdings LinePrinter USPS ZIP OCR-A,B  
Other  
Gothic TimesNew  
Fonts  
#
Symbol set  
LCD Indication  
ID  
MicroType MicroType MicroType MicroType MicroType TrueType Bitmap  
Bitmap  
Bitmap MicroType  
46 Math-8  
47 Pi Font  
Math-8  
8M  
Pi Font  
15U  
6J  
48 Microsoft Publishing  
49 Windows 3.0 Latin 1  
50 Desk Top  
MS Publish  
Win 3.0  
9U  
Desktop  
Win 3.1 L1  
MC Text  
7J  
51 Windows 3.1 Latin 1 (ANSI)  
52 MC Text  
19U  
12J  
17U  
5T  
53 PC-852 (East Euro. CP 852) PC-852  
54 Windows 3.1 Latin 5  
Win 3.1 L5  
55 Windows 3.1 Latin 2 (E.Euro.) Win 3.1 L2  
9E  
56 CWI Hungarian  
CWI Hung  
PC-857 TK  
2044Z  
2040Z  
2N  
57 PC-857 (Turkish CP 857)  
58 ISO8859/2 (Latin 2 (ECMA-94) ISO L2  
59 ISO8859/9 Latin 5 (ECMA-128) ISO L5  
5N  
60 Turkish PC-8 (PC Turkish)  
61 Kamenicky <MJK>  
62 Hebrew NC (862)  
63 Hebrew OC  
PC-8 TK  
9T  
Kamenicky  
Hebrew NC  
Hebrew OC  
2022Z  
2020Z  
2021Z  
64 Polska Mazovia  
65 ISO8859/10 Latin 6  
66 Hebrew Windows 3.1  
67 HP ZIP Code  
Plska Mazvia 2023Z  
ISO L6  
2027Z  
2019Z  
15Y  
Win 3.1 Heb  
HP ZIP  
68 USPS ZIP Code  
USPSZIP  
97Y  
OKIPAGE 8c  
24  
 
HP Emulation (PCL) Symbol Sets & Fonts (continued)  
Typeface  
CG Times Courier  
/ Univers  
Letter  
Arial /  
Symbols Wingdings LinePrinter USPS ZIP OCR-A,B  
Other  
Fonts  
Gothic TimesNew  
#
Symbol set  
LCD Indication  
ID  
MicroType MicroType MicroType MicroType MicroType TrueType Bitmap  
Bitmap  
Bitmap MicroType  
69 USPS FIM Bars  
70 USPS Stamp Here  
71 Cyrillic Windows 3.1  
72 PC-866 (Cyrillic 2 CP 866)  
73 Greek Windows 3.1  
74 PC-869 (Greek CP 869)  
75 PC-855 (Cyrillic CP 855)  
76 Wingdings  
USPSFIM  
USPSSTP  
Win 3.1 Cyr  
PC-866  
98Y  
99Y  
9R  
3R  
Win 3.1 Grk  
PC-869  
2042Z  
2041Z  
2031Z  
579L  
19M  
2022Z  
PC-855  
Wingdings  
Symbol  
77 Symbol  
78 Greek 437  
Greek-437  
79 Greek 437 Cyprus  
80 Greek 928  
Greek-437 Cy 2025Z  
Greek 928 2026Z  
Serbo Croat2 2018Z  
81 Serbo Croatic II  
82 Ukrainian  
Ukrainian  
Bulgarian  
OCR-A  
OCR-B  
none  
2017Z  
2016Z  
00  
83 Bulgarian  
84 OCR-A  
85 OCR-B  
10  
86 Ventura ITC Zapf Dingbats  
87 PS ITC Zapf Dingbats  
88 ITC Zapf Dingbats 100  
89 ITC Zapf Dingbats 200  
90 ITC Zapf Dingbats 300  
9L  
none  
10L  
11L  
12L  
13L  
none  
none  
none  
Users Guide  
25  
 
Paper & Other Print Media  
Dealing With Paper Jams  
Your printer is capable of high quality output on various media  
types. For most general purpose office applications normal 80g/  
m² copier paper is adequate. However, for better print quality a  
high grade paper recommended for laser printing will give better  
image definition and contrast, as well as brighter, more vibrant  
colours.  
Your printer should give years of reliable service, handling a  
range of print media (paper, transparencies, etc.) with few  
problems. However, paper jams may occur from time to time,  
due to excess humidity, damaged paper (for example, torn or  
bent corners), or minor malfunction.  
Paper jams will be indicated on the operator panel display, the  
printer will stop, and the ATTENTION light will illuminate.  
Heavily textured or embossed paper stock will generally give  
poor results, because it is difficult to effectively transfer a toner  
image to such materials and then fuse it properly.  
A paper jam does not always mean that paper is physically  
jammed. It simply means that paper has been detected where it  
should not be at that time, or no paper has been detected where  
there should be paper at that time.  
Transparencies may be used for overhead projectors, but these  
must be of the type intended for use in laser printers or copiers.  
They must be able to withstand the high temperatures generated  
by the fuser, and should not be of the type with removable  
backing paper or edging strip.  
Paper Input Jam  
Paper Feed Jam  
Paper Exit Jam  
Paper has jammed between the paper tray  
and the first image drum.  
Paper has jammed after the first image  
drum and before the fuser.  
On no account use transparencies intended only for  
marking directly with marker pens. These will melt and  
cause extensive internal damage to your printer.  
Paper has jammed in the fuser or between  
the fuser and the point of exit.  
OKIPAGE 8c Plus  
26  
 
Standard Paper Path  
On leaving the fuser, the paper passes via two pairs of exit pinch  
rollers (6) and on to the paper stacker on top of the printer or the  
rear stacker if it is open.  
The illustration (looking into the left-hand side of the printer)  
here shows the paper path through the printer.  
Gaining Access to the Paper Path  
Access to the paper entry area is via the front feeder unit (7).  
Access to the paper exit (post fuser) area is via the rear stacker  
(8). Access to the paper feed area is via the top cover.  
Front Feeder and Rear Exit Paper Path  
When feeding heavy print media it is advisable to use the front  
feeder and rear stacker to keep the paper path as straight as  
possible.  
Paper is normally fed from the paper tray (1), through the paper  
entry pinch rollers (2), and onto the transfer belt (3). It is held  
against the transfer belt by an electrostatic charge.  
Paper enters from the front feeder into the front pinch rollers  
(2), and travels on to the transfer belt in an almost straight line.  
As the belt rotates (anti-clockwise in this view), the paper passes  
under each of the four image drums (4), where the toner image  
is transferred to the paper and held there lightly by electrostatic  
charge.  
On leaving the fuser assembly the paper emerges out through  
the open rear exit face upwards.  
The paper then moves on to the fuser assembly (5), where the  
image is made permanent by a mixture of heat and physical  
pressure.  
Users Guide  
27  
 
Clearing a Paper Input Jam  
Clearing a Paper Feed Jam  
A paper input jam indication means paper has jammed between  
the tray and the first image drum cartridge.  
If paper jams between the first image drum and the fuser it will  
be necessary to open the top cover. There is no electrical shock  
hazard, since this area is protected by interlocks, so power may  
be left on during this operation.  
1. Open the front feeder (1) by lifting the latch (2) and pulling  
the cover out and downwards.  
When accessing the central area take care not to touch  
the hot surfaces around the fuser. These are clearly  
marked with yellow warning labels, and are very hot.  
1
2
When removing image drums, keep them away from  
strong light, especially direct sunlight. If in doubt, place  
them in their black lightproof bags (supplied with the  
printer and with new drums).  
3
2. Remove any paper visible in this area.  
1. Press the OPEN button and lift the top cover to its fully  
upright position.  
If paper has advanced up to the first image drum and resists  
pulling, clear it as for a paper feed jam, described in the  
next procedure.  
2. Lift out each of the four image drum cartridges (1) complete  
with their respective toner cartridges still in place.  
3. Pull out the paper tray (3) and remove any partially feed  
sheets.  
4. Check that the paper in the tray is stacked neatly, with no  
sheets bent or stuck together.  
1
5. Push the tray in gently. A full tray is heavy and can damage  
the printer if slammed shut.  
OKIPAGE 8c Plus  
28  
 
Clearing a Paper Exit Jam  
Put the drum cartridges where they will not be scratched  
and not exposed to strong light.  
An indicated paper exit jam means paper has jammed in the  
fuser or between the fuser and the point of exit from the printer.  
3. Inspect the paper path for sheets of paper. Carefully remove  
any sheets (2) you find.  
1. Press the OPEN button and raise the top cover to its fully  
upright position.  
When accessing the central area take care not to touch  
the hot surfaces around the fuser. These are clearly  
marked with yellow warning labels, and are very hot.  
2
2. Push the two coloured fuser latch levers (1) away from you  
(towards the rear of the printer).  
Paper jammed under the first image drum should be pulled  
forwards through the paper path if possible, not backwards,  
to avoid spillage of unfused toner into the paper input  
area.  
2
2
Be especially careful not to scratch the transfer belt.Avoid  
using sharp instruments.  
1
1
4. Lower each image drum cartridge back into position via its  
two locating slots at each side of the printer, being careful  
to match the coloured label on each cartridge with its  
corresponding coloured label in the printer.  
3. Lift the fuser by its two handles (2) straight up and out of  
the printer.  
5. Close the top cover and press down firmly at both sides to  
ensure that it is locked down.  
Users Guide  
29  
 
4. Pull out the sheet of paper from between the fuser rollers.  
8. Close the rear exit stacker (unless you intend to use it for  
the remainder of the print job).  
9. Check for and clear any paper feed jams or paper input  
jams, as described in the preceding sections.  
10. Close the top cover and press down firmly to latch it down.  
The print process will resume automatically when you close  
the top cover, after a short period to allow the fuser to warm  
up again.  
5. Lower the fuser back into the printer, press down firmly to  
locate, then pull on the two latch levers to ensure the fuser  
is locked in position.  
6. Open the rear exit stacker (3).  
4
3
7. Look into the rear of the printer and check for any sheets  
(4) of paper. Remove any that you find.  
OKIPAGE 8c Plus  
30  
 
Replacing Toner Cartridges  
Your printer uses four toner cartridges: one each for cyan,  
magenta, yellow and black. If purchasing less than a complete  
set, ensure you are purchasing the colour you require. This is  
clearly indicated on the box.  
3. Do not attempt to clean spilled toner with any solvent or  
spirit-based solution, as this may partially dissolve the toner  
and cause permanent marking.  
4. Take the new cartridge out of its box before you remove  
the old one. The new cartridge comes with a plastic bag  
which can be used to wrap the old cartridge for disposal.  
Always use genuine OKI consumables with your printer.  
These come in the familiar OKI red and white boxes and  
are designed and manufactured specially for use in OKI  
printers.  
5. Do not smoke while changing the toner cartridge. If you do  
accidentally cause a toner cloud, as with all fine particle  
clouds, it could become flamable.  
Genuine OKI toner is made from non-toxic materials and is  
perfectly safe to use, provided you follow a few basic safety  
rules.  
When to Change a Toner Cartridge  
1. When removing old toner cartridges from your printer you  
will see the toner powder on top of the image drum cartridges.  
Take care to avoid performing this task in a draft, and do not  
blow on the powder, as this may cause a toner cloud. If you  
inhale such a cloud, seek a clean fresh air environment, and  
take a few deep breaths. If you continue to experience any  
discomfort seek medical advice.  
The printer will display a message when any toner cartridge is  
within about 100 pages of the end of its life. The display will  
also indicate which colour is running out. You can normally  
expect a toner cartridge to produce about 3000 pages at 5% print  
density (this is a typical density for text pages).  
There is no hard and fast rule, since toner life depends very much  
on image content. Also, when installing a new image drum, the  
first toner cartridge will run out more quickly, because the drum  
reservior must fill when new.  
2. If you spill any toner on your skin or clothes, brush it off. If  
necessary, rinse in cold water. Do not use hot water, since  
the application of heat might make the marks permanent.  
Users Guide  
31  
 
Replacing a Toner Cartridge  
1. Press the OPEN button and raise the top cover to its fully  
upright position.  
5. Gently shake the new cartridge from side to side to evenly  
distribute the toner along its length.  
2. Identify by the coloured label (1) which toner cartridge you  
intend to remove.  
6. Peel off the white adhesive tape seal from the underside of  
the toner cartridge.  
3. Unlock the cartridge by pulling the coloured lever (2) at  
the right-hand end towards you.  
1
7. Holding the cartridge with the coloured lever (3) to the right  
and the white end cap (4) to the left, lower the toner cartridge  
into the top of the image drum cartridge, white cap end  
first, then press gently down on the other end to locate the  
cartridge firmly onto the image drum cartridge.  
2
4. Lift the right-hand end of the cartridge away from the image  
drum, and then lift the cartridge out of the machine. Wrap  
it for disposal in the plastic bag supplied with the new  
cartridge.  
4
3
Do not force the toner cartridge into position. It is fitted  
with a lock-out mechanism to prevent insertion into the  
wrong image drum cartridge.  
OKIPAGE 8c Plus  
32  
 
8. Push the coloured locking lever (3) away from you (towards  
the back of the printer) to lock the cartridge home and  
release the toner supply.  
Replacing Image Drums  
There are four image drums in the printer, one each for cyan,  
magenta, yellow and black. If purchasing less than a complete  
set, ensure you are purchasing the colour you require. This is  
clearly indicated on the box. These are delicate units and should  
be handled with care.  
3
Always use genuine OKI image drums with your printer.  
These come in the familiar OKI red and white boxes and  
are designed and manufactured specially for use in OKI  
printers.  
Cleaning the LED Arrays  
Before closing the printer cover, the LED arrays should be  
cleaned, using the paper towel in the sachet supplied with the  
new toner cartridge. After cleaning, avoid touching these arrays  
with your fingers.  
The green surfaces of the drums are light sensitive and should  
not be exposed to strong ambient light, and especially not direct  
sunlight.  
1. Gently wipe clean each of the four LED arrays under the  
printer top cover.  
The green drum surfaces are easily scratched, and should not  
be put down where they might come into contact with hard or  
abrasive materials. If removed from their packaging, or from  
the printer, for more than a few moments, they should be wrapped  
in their black, lightproof plastic bags.  
2. Close the top cover and press down firmly at both side to  
latch it down.  
Users Guide  
33  
 
It is essential that each drum be installed in its correct position  
in the printer, corresponding with the appropriate coloured label  
inside the printer. Each drum assembly is marked with a similar  
coloured label for ease of identification.  
Changing a Drum Cartridge  
Since the toner cartridge should also be replaced at the same  
time, the image drum may be removed with the old toner  
cartridge still in place.  
1. Switch off the printer main power.  
When to Change a Drum Cartridge  
The printer will display a message when any drum cartridge  
needs to be replaced. The status lights on the operator panel  
will indicate which drum to replace.  
2. Press the OPEN button and raise the top cover to its fully  
upright position.  
3. Identify by coloured label which drum you intend to replace.  
You can normally expect a drum cartridge to produce about  
12,000 pages.  
Also, when installing a new image drum, a new toner cartridge  
should also be installed with it. This toner cartridge will run out  
more quickly than normal, because the drum reservoir must fill  
when new.  
4. Grip the top of the drum assembly and lift it straight up and  
out of the printer.  
OKIPAGE 8c Plus  
34  
 
5. Unpack the new drum cartridge and pull out the protective  
sheet of paper.  
Resetting Drum Count  
After installing a new image drum the page counter for that drum  
should be reset. This is performed using the User Menu.  
1. Hold down the MENU 1 / Menu 2 key for about 2 seconds  
until the menu item COLOR REG ADJUST appears in the  
display.  
Pull the sheet straight downwards to avoid tearing.  
2. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows  
ENGINE CNT RESET, press ENTER.  
6. Hold the new cartridge above its intended position and lower  
it gently all the way in.  
3. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows  
CCCCC DRMCNT (“CCCCC” means the colour of the  
replaced drum), press the ENTER key to reset the drum  
count.  
Locating slots (1) at each side of the printer help you to  
correctly position the drum cartridge.  
1
1
4. If you have changed two or more drums at the same time,  
also reset their counts.  
7. Remove any plastic foam seal from the top of the new drum  
cartridge.  
5. Press the ON LINE key to exit from the User Menu and  
return to the ON LINE (ready) condition.  
8. Install a new toner cartridge of the appropriate colour,  
following the instructions given in the previous section.  
Users Guide  
35  
 
Replacing Waste Toner Box  
The waste toner box should be replaced after approximately  
25,000 pages. When the waste toner box needs replacing a  
message to that effect will appear on the operator panel display.  
4. Locate the bottom of the waste toner box into position near  
the bottom of the printer, and push down against spring  
pressure.  
1. Lift the catch and open the left-hand side panel.  
1
5. Push the top of the waste toner box into the printer so that  
the box is upright, then release the downward pressure,  
allowing the box to rise.  
2. Press down against spring pressure on the top of the waste  
toner box (1), pull it outwards and lift it clear of the printer.  
3. Position the new waste toner box with its drive coupling  
(2) towards the front of the printer and the lifting tab (3) at  
the top.  
6. Check that the drive coupling (2) on the waste toner box is  
correctly located slightly below and in front of the coupling  
on the printer.  
2
3
2
2
7. Close the left-hand side panel.  
OKIPAGE 8c Plus  
36  
 
Replacing Transfer Belt  
The transfer belt assemby must be replaced after approximately  
50,000 pages. When the belt needs replacing you will see a  
message to this effect on the operator panel display.  
3. Remove the waste toner box (1) as described in the  
preceding section.  
4. Lift the coloured handle (2) on the belt assembly and  
withdraw the unit from the printer.  
1. Press the OPEN button and lift the top cover to its fully  
upright position. This allows the drums to rise clear of the  
belt.  
5. Locate the new belt unit into its guide rails (3) in the printer  
and gently push it all the way in until it locks into position.  
3
2. Lift the catch and open the left-hand side panel.  
6. Refit the waste toner box as described in the preceding  
section.  
7. Close the left-hand side panel.  
2
1
8. Close the top cover and press down firmly at both sides to  
ensure that it locks down.  
Users Guide  
37  
 
Resetting Belt Count  
Be careful not to touch any of the very hot surfaces  
around the fuser unit. These are clearly indicated by  
bright yellow warning labels.  
After installing a new transfer belt the page counter for the belt  
unit should be reset. This is performed using the User Menu.  
1. Press the OPEN button and raise the top cover to its fully  
upright position.  
1. Hold down the MENU 1 / Menu 2 key for about 2 seconds  
until the menu item COLOR REG ADJUST appears in the  
display.  
2. Push the small coloured locking lever (1) away from you  
(towards the rear of the printer).  
2. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows  
ENGINE CNT RESET, press ENTER.  
2
1
3. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows BELT  
COUNT press the ENTER key to reset the belt count.  
3. Lift the oil roller unit (2) by its right-hand end, pull it slightly  
to the right to disengage the left-hand end from the fuser  
unit, and lift the oil roller unit out of the printer.  
4. Press the ON LINE key to exit from the User Menu and  
return to the ON LINE (ready) condition.  
4. Hold the new oil roller unit with the yellow warning label  
on top and facing you.  
Replacing Fuser Oil Roller  
This unit should be replaced after approximately 10,000 pages.  
Its purpose is to lubricate and clean the fuser roller, and if left  
unchanged will result in poor print quality due to image offsetting  
from the fuser.  
OKIPAGE 8c Plus  
38  
 
5. Lower the left-hand end of the unit into the printer and locate  
under the retaining lip on top of the fuser unit.  
Resetting Fuser Oil Roller Count  
After installing a new fuser oil roller, the page counter for the  
roller unit should be reset. This is performed using the User  
Menus.  
1. Hold down the MENU 1 / Menu 2 key for about 2 seconds  
until the menu item COLOR REG ADJUST appears in the  
display.  
2. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows OIL  
ROLLER COUNTER press the ENTER key to reset the  
roller count.  
6. Lower the right-hand end of the oil roller unit down onto  
the fuser.  
7. Pull the small coloured locking lever to the right of the oil  
roller unit towards you (towards the front of the printer) to  
lock the oil roller into position.  
3. Press the ON LINE key to exit from the User Menu and  
return to the ON LINE (ready) condition.  
The coloured labels on the oil roller and the fuser should  
now be aligned one above the other.  
8. Close the top cover and press down firmly at both sides to  
ensure that it locks down.  
Users Guide  
39  
 
Replacing Fuser Unit  
The fuser unit should be replaced after approximately 60,000  
pages. When this unit needs replacing a message to that effect  
will appear on the operator panel display.  
5. Hold the new fuser by its two handles, with the yellow  
warning labels on top and facing you, and lower the unit  
into the printer, pressing firmly down to fully locate the  
unit.  
Take care not to touch any of the very hot surfaces  
around the fuser area. These are clearly indicated by  
bright yellow warning labels.  
1. Press the OPEN button and raise the top cover to its fully  
upright position.  
2. Push the two fuser latch levers (1) away from you (towards  
the rear of the printer) to release the fuser unit.  
6. Pull the two latching levers (1) towards you to ensure that  
the fuser is locked into position. (It should not be possible  
to lift the fuser when it is properly locked in position.)  
2
2
1
1
1
1
3. Hold the fuser by its two handles (2) and lift the unit straight  
up and out of the printer.  
7. Close the top cover and press down firmly at both sides to  
ensure that it locks down.  
4. Fit a new fuser oil roller to the top of the new fuser,  
following the instructions in the preceding section.  
OKIPAGE 8c Plus  
40  
 
Resetting Fuser Count  
Windows Printer Driver  
After installing a new fuser the page counter for the fuser unit  
should be reset. This is performed using the User Menus.  
The Windows printer driver supplied with your printer provides  
on-screen control of most of the printer’s main functions, and is  
presented in the form of a tabbed dialogue box.  
1. Hold down the MENU 1 / Menu 2 key for about 2 seconds  
until the menu item COLOR REG ADJUST appears in the  
display.  
Each of the dialogues contains a Help button. Clicking on this  
will display detailed information to help you choose which  
settings are best for your particular print job.  
2. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows  
ENGINE CNT RESET, press ENTER.  
The Colour Guide in the CD on-line documentation also offers  
guidance on colour adjustment provided by the Windows driver.  
3. Press and release the MENU 1 / Menu 2 key to cycle  
through the available items. When the display shows  
FUSER COUNT press the ENTER key to reset the fuser  
count.  
Clicking on the Default button in any dialogue restores all settings  
to their default values. These will be the most appropriate for  
general use.  
4. Press the ON LINE key to exit from the User Menu and  
return to the ON LINE (ready) condition.  
Users Guide  
41  
 
Status Messages and Problem Solving  
Reason and possible action required  
Message  
Printer is ready.  
ON LINE  
Job is being processed.  
Data received has yet to be printed.  
BUSY  
DATA PRESENT  
The current page is too complex and is being simplified. This may result in degraded image  
quality. Try selecting 300dpi resolution. If this happens frequently you may wish to consider  
purchasing a memory upgrade.  
COMPLEX PAGE IMAGE APPROXIMATED  
One or more toner cartridges is nearly empty. The status lights will indicate which colour(s).  
TONER LOW  
One of the image drums requires changing (CCCCCindicates colour).The status lights will also  
CHANGE DRUM  
indicate which colour(s).  
The fuser has reached its end of life and requires changing.  
The transfer belt unit has reached its end of life and requires changing.  
The printer is requesting paper via its front manual feed slot.  
The paper has run out.  
FUSER LIFE  
BELT LIFE  
WAITING FOR MANUAL FEED  
PAPER EMPTY  
The indicated paper tray is not installed properly.  
TRAY n NOT INSTALLED  
CANNOT USE A6 PAPER ON 2ND TRAY  
1ST TRAY INSTALL REQUEST  
The second paper tray cannot feed A6 size paper. Use Tray 1 or the manual feed slot.  
The printer is trying to automatically switch to the second paper tray when Tray 1 paper ran out.  
You must leave Tray 1 in place.  
The printer is requesting a different size paper in the indicated tray.  
PAPER CHANGE REQUEST  
MEMORY OVERFLOW  
The current page is too complex and cannot be printed. Try selecting 300dpi resolution. If this  
happens frequently you may wish to consider purchasing a memory upgrade.  
This is known as a print overrun and occurs because the page is too complex to be printed. Try  
selecting 300dpi resolution. If it occurs frequently you may wish to consider purchasing a  
memory upgrade.  
COMPLEX PAGE IMAGING INCOMPLETE  
OKIPAGE 8c  
42  
 
Status Messages and Problem Solving (continued)  
Reason and possible action required  
Message  
The indicated colour of toner has run out. Install a new toner cartridge.  
The waste toner box is full. Install a new one.  
TONER EMPTY  
WASTE TONER FULL  
OIL ROLLER LIFE  
PAPER SIZE ERROR  
HOPPING ERROR  
PAPER INPUT JAM  
The fuser oil roller has reached its end of life. Install a new one.  
The paper size detected by the printer is incorrect for the current print job.  
Paper being fed from the paper tray has jammed. Clear as for a paper input jam.  
A paper jam has occured between the paper tray and the first image drum. Follow the  
instructions in this manual to clear it.  
A paper jam has occured between the first image drum and the fuser. Follow the instructions in  
this manual to clear it.  
PAPER FEED JAM  
A paper jam has occured either in the fuser or between the fuser and the point of exit. Follow the  
instructions in this manual to clear it.  
PAPER EXIT JAM  
The transfer belt unit is not installed correctly. Open the top and left-hand side covers, check and  
reinstall as necessary.  
BELT NOT INSTALLED  
WASTE TONER BOX NOT INSTALLED  
The waste toner box is not installed correctly. Open the left-hand side cover, check and reinstall  
as necessary.  
The top cover is open. Close it and press down firmly at both sides to latch it closed.  
COVER OPEN  
Indicates there is an error with the postscript file being sent to the printer. The printer  
automatically prints out an error page giving details of the postscript error.  
ERROR POSTSCRIPT  
For other error messages call for technical service.  
OTHER ERROR MESSAGES  
Users Guide  
43  
 
Specifications  
CATEGORY  
ITEM  
SPECIFICATION  
Physical  
Width  
Depth  
Height  
Weight  
478mm  
622mm  
397mm  
Less than 52kg  
Print speed  
Print start  
Resolution  
Engine speed (A4)  
8PPM normal paper  
5PPM transparencies / label / ultra heavy / card stock  
First print time  
Warm-up time  
25 seconds  
160 seconds at 25ºC  
LED head  
Maximum Input dpi  
Output dpi  
600 x 600dpi  
600 x 600dpi  
600 x 600dpi  
CPU  
RAM  
Core  
I-Cache, D-Cache  
Clock  
MIPS R5000  
32KB, 32KB  
200MHz  
Bus width  
64bit  
Resident  
Option  
32MB  
16/32/64MB SIMM sets  
ROM  
Program  
8MB Program (PS) + 8MB Program (PCL) + 2MB Flash ROM  
Electrical Power  
Voltage  
230VAC -14% ~ 240V +10%  
Frequency  
Power save mode  
Idle  
50 or 60Hz +/-2%  
40W  
70W  
Typical operation  
Peak  
280W  
980W  
OKIPAGE 8c  
44  
 
CATEGORY  
ITEM  
SPECIFICATION  
Electrical power (continued)  
Peak  
4A  
AC power cable  
Standard 1.8m IEC cable fitted with UK or European 3-pin power plug  
Temperature  
Humidity  
Operating  
Non-operating  
Storage  
10 32°C (Full colour 17 27°C)  
0 ~ 43°C  
-10 ~ 43°C for less than 1year  
-29 ~ 50°C less than 1 month  
Transit  
Operating  
Non-operating  
Storage  
20 ~ 80% at 25°C (50 ~ 70% for full colour)  
10 ~ 90% at 26.8°C  
10 ~ 90% at 35°C  
Transit  
10 ~ 90% at 40°C  
Location Environment  
Vibration  
Incline  
Altitude  
Impact  
Maximum 1 degree  
2500m above sea level  
305mm max drop height while the printer is in its box  
Operation  
Transport  
5~10Hz 0.1mm; 10~14Hz 0.02G; 14~54Hz 0.05mm; 54~200Hz 0.3G  
5~10Hz 10.16mm; 10~14Hz 2G; 14~54Hz 0.38mm; 54~200Hz 5G  
Approvals  
EN60950, CE:EN55022 class B/EN50082-1  
Life & duty cycle  
Service & Reliability  
Printer life  
300,000 pages, 5 years; max. 25,000 pages/month, av. 5000 pages/month  
MTBF  
MTTR  
5,700 print hours @ 2.3% duty  
20 minutes  
Consumables life  
(Approx.)  
Toner life  
Oil roller  
3000 pages at 5% density (2000 pages for first toner cartridge with new drum)  
10,000 pages  
Waste toner box  
Image drum  
Transfer belt  
Fuser  
25,000 pages at 5% density  
12,000 pages (cont. printing); 7,500 (3 pages/job); 5,000 (1 page/job)  
50,000 pages  
60,000 pages  
Users Guide  
45  
 
CATEGORY  
ITEM  
SPECIFICATION  
Acoustic noise  
Operating  
Standby  
Power save mode  
54dBA  
45dBA  
43dBA  
Paper handling  
Input (1st / 2nd tray)  
Input (Manual / Auto)  
Paper size detection  
Output  
Legal / Univ. cassette, 500 sheets (up to 50mm)  
100 sheets or 40 transparencies  
Automatic for 1st and 2nd trays  
250 sheets, face down (top); 100 sheets, face up (rear)  
Paper size  
1st tray  
2nd tray  
Auto front feeder  
Legal / Universal cassette: Legal, Letter, Executive, A4, A5, B5, A6, Free  
Legal / Universal cassette: Legal, Letter, Executive, A4, A5, B5, Free  
Legal, Letter, Executive, A4,A5,B5,A6, Free  
Minimum paper size  
1st tray  
2nd tray  
Auto front feeder  
Length x Width: 148 x 105 mm (A6)  
Length x Width: 210 x 148 mm (A5)  
Length x Width: 140 x 86.4mm  
Special paper  
Paper weight  
Auto feed  
Transparency, Label stock  
1st / 2nd tray  
Manual feed  
64~105g/m²  
64~200g/m²  
Operator panel  
LCD  
16ch, 2line, Paper size indicator  
LED (Colour)  
Membrane keys  
6 (Amber x 5, Red x 1)  
8
Status switches / sensors  
Paper end  
Yes  
Toner low  
Separate for Y, M, C & K)  
Cover open  
Fuser temperature  
Paper size  
Yes  
Yes  
Yes  
OKIPAGE 8c  
46  
 
CATEGORY  
ITEM  
SPECIFICATION  
Communication interface  
Standard  
Options  
I/O switch  
IBM-Centro CEN36, IEEE1284Nibble  
Ethernet 100Base-TX / 10Base-T  
Auto  
Emulation  
Standard  
Emulation switch  
PCL5c/PostScript 3  
Auto (PCL / PS)  
Software  
Fonts  
Windows drivers  
Status monitor  
Windows 3.1x, 95, NT4  
Yes (Windows)  
PCL Bitmap  
PCL Scalable  
PS Scalable  
4 (Line Printer, OCR-A, OCR-B, USPS Barcode)  
45  
136  
Upgrade options  
RAM set  
Interface  
8MB x 2, 16MB x 2, 32MB x 2 SIMM  
Ethernet 100Base-TX / 10Base-T  
Paper Cassette  
2nd paper tray, Legal / Univ. (500 sheets)  
Grey Scale  
Colour  
256 level half-toning  
24 bit colour  
Other  
OKI reserves the right to alter specifications without notice.  
Users Guide  
47  
 
Index  
C
I
Colour balance  
Image drums  
Problem solving  
adjusting .............................................. 18  
Colour registration  
care of.................................................. 33  
drum count .......................................... 35  
life of ................................................... 34  
replacing....................................... 33, 34  
charts ................................................... 42  
adjusting .............................................. 16  
test pattern .................................... 16, 19  
S
Software  
Windows drivers ................................. 41  
Specifications  
D
L
Display messages  
LED Arrays  
table of ................................................ 44  
meaning of .......................................... 42  
cleaning ............................................... 33  
T
F
M
Menus  
Toner  
Fonts  
life of ................................................... 31  
replacing....................................... 31, 32  
waste toner box ................................... 36  
Transfer belt  
belt count...................................... 38, 39  
life of ................................................... 37  
replacing.............................................. 37  
Transparencies  
bit mapped........................................... 21  
PCL font tables ................................... 22  
printing a list ....................................... 21  
scalable................................................ 21  
Windows ............................................. 21  
Fuser oil roller  
Menu 1 .................................................. 8  
Menu 2 ................................................ 12  
operator panel ....................................... 6  
use maintenance .................................. 15  
user maintenance .................................. 7  
using ...................................................... 6  
replacing.............................................. 38  
Fuser unit  
P
using .................................................... 26  
fuser count .......................................... 41  
life of ................................................... 40  
replacing.............................................. 40  
Paper  
W
exit jam................................................ 29  
feed jam............................................... 28  
heavyweight ........................................ 27  
input jam ............................................. 28  
jams ..................................................... 26  
path ...................................................... 27  
usable types ......................................... 26  
Waste toner box  
replacing.............................................. 36  
OKIPAGE 8c  
48  
 

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