Oki C7550 User manual

1

1
Contents
Ordering Replacement Supplies.................................................................2
Media Settings................................................................................................3
Default Media Settings ..................................................................................3
Ranges for Printer Media Weight Settings .......................................................... 4
Changing Default Media Settings
Trays 1, 2, 3.......................................................................................................... 5
Multi-Purpose (MP) Tray..................................................................................... 6
Loading Media
Trays 1, 2 & 3 ...................................................................................................... 8
Multi-Purpose (MP) Tray..................................................................................... 9
Selecting/Using
Paper................................................................................................................... 10
Transparencies ................................................................................................... 12
Labels ................................................................................................................. 13
Thick Media ....................................................................................................... 14
Envelopes ........................................................................................................... 15
OKI Print Media................................................................................................. 16
Ideas for Using Printer Features.............................................................. 17
Secure Print .................................................................................................. 18
Proof & Print................................................................................................. 19
Printing Built-In Reports ........................................................................... 20
Setting Power Save Parameters .............................................................. 22
Control Panel Buttons................................................................................ 23
Control Panel Lights................................................................................... 26
Clearing Media Jams .................................................................................. 27
Changing Toner Cartridges ....................................................................... 37
Error Messages ............................................................................................ 39
Service & Support........................................................................................ 43
59364801

2
Ordering Replacement Supplies
How to Order
• Consult the dealer where you
purchased your printer.
•ConsultanOkiData Authroized
Sales or Service Dealer. (For the
nearest dealer, call
1-800-654-3282.)
•U.S., Puerto Rico, Guam, U.S.
Virgin Islands only: Order on the
Internet www.okidata.com.
•U.S. only: Order toll-free by phone
at 1-800-654-3282, using VISA®,
MasterCard®or AMEX®.
• Check office supply catalogs.
Take Advantage of
OKI Supply Manager
Don’t run out of supplies again!
• Calculates your usage based on
information you provide.
• Sends you an email reminder when
it’s time to reorder.
To register for Supply Manager, go
to www.okidata.com.
Order Numbers
Important!
Be sure to purchase only
consumables designated Type C4.
Consumables designated “C7000
Series” will not work with these
models.
Toner Cartridges, Type C4
Color OKI Part No.
Black............................... 41963004
Cyan................................ 41963003
Magenta .......................... 41963002
Yellow ............................. 41963001
Image Drums, Type C4
Color OKI Part No.
Black............................... 41962804
Cyan................................ 41962803
Magenta .......................... 41962802
Yellow ............................. 41962801

3
Media Settings
Why Change Media
Settings?
Improper media settings:
• cause poor quality printing
• cause flaking
• can damage the printer
Default Media Settings
The Default Setting
The default media weight setting for
all trays (including optional tray 2) is
AUTO.
Changing Defaults
To change the printer’s default settings
for print media, see pages 5 and 6.
Resetting to the Original
Defaults
Note:The…which appears in these
steps indicates that you should
keep pressing the button
repetitively until you see the
display indicated.
To reset the printer menu to it’s
original default settings:
1. Press …
MAINTENANCE MENU
2. Press …
EEPROM RESET
EXECUTE
3. Press .
The printer resets and returns to the
on-line state.

4
Media Settings (cont.)
Media Settings for
Individual Print Jobs
If you are printing a job on special
media, you can temporarily load the
media in a tray and change the media
settings for that tray in the driver as
you print the job.
Ranges for Printer
Media Weight Settings
Note: To determine if a paper weight
is US Bond or Index, check the
metric equivalent. E.g.,
35 lb. US Bond = 132 g/m2
35 lb. Index = 64 g/m2.
For more information, go to
www.paper-paper.com/
weight.html.
Table 1: MediaWeight Settings,
US Bond
Setting US Bond (Metric)
Auto (default) 17 to 54 lb.
(64 to 203 g/m2)
Light 17 lb. (64 g/m2)
Medium Light 18 to 19 lb.
(68 to 71 g/m2)
Medium 20 to 24 lb.
(75 to 90 g/m2)
Medium Heavy 25 to 27 lb.
(94 to 101 g/m2)
Heavy 28 to 32 lb.
(105 to 120 g/m2)
Ultra Heavy 33 to 54 lb.
(124 to 203 g/m2)
Table 2: MediaWeight Settings,
Index
Setting Index (Metric)
Auto (default) 35 to 113 lb.
(64 to 203 g/m2)
Light 35 lb. (64 g/m2)
Medium Light 37 to 40 lb.
(68 to 71 g/m2)
Medium 42 to 50 lb.
(75 to 90 g/m2)
Medium Heavy 52 to 56 lb.
(75 to 90 g/m2)
Heavy 52 to 67 lb.
(94 to 120 g/m2)
Ultra Heavy 69 to 113 lb.
(124 to 203 g/m2)

5
Changing Default Media Settings:
Trays 1, 2, 3
Note: The “…” in these steps indicates that you should keep pressing the button
repetitively until you see the display indicated.
To Set Transparencies
as the Default Media
Set the Media Type
1. Press …
MEDIA MENU
2. Press …
TRAYZ* MEDIATYPE
XXXX**
3. Press …
TRAYZ* MEDIATYPE
TRANSPARENCY
4. Press , .
*Z= 1, 2, or 3, depending on which
tray you are changing.
** XXXX = current media type
setting.
To Set Labels, Heavy
Paper, etc., as the
Default Media
Set the Media Weight
1. Press …
MEDIA MENU
2. Press …
TRAYZ* MEDIAWEIGHT
AUTO
3. Press …
TRAYZ* MEDIAWEIGHT
YYYY**
4. Press , .
*Z= 1, 2, or 3 (tray you are using).
** YYYY = Medium, Medium Heavy,
Heavy, or Ultra Heavy

6
Changing Default Media Settings:
Multi-Purpose (MP) Tray
To Set Transparencies
as the Default Media
Note: The “…” in these steps
indicates that you should keep
pressing the button repetitively
until you see the display
indicated.
First, Check/Set the Media
Size to Letter (Default) or A4
1. Press …
MEDIA MENU
2. Press …
MP TRAY PAPERSIZE
XXXX*
3. Press …
MP TRAY PAPERSIZE
LETTER
or
MP TRAY PAPERSIZE
LETTER
4. Press .
Then, Set the Media Type
1. Press …
MP TRAY MEDIATYPE
XXXX*
2. Press …
MP TRAY MEDIATYPE
TRANSPARENCY
3. Press , .
*XXXX = current setting.

7
Changing Default Media Settings:
Multi-Purpose Tray (cont.)
To Set Labels or Heavy
Paper as the Default
Media
Note:The“…” in these steps
indicates that you should keep
pressing the button repetitively
until you see the display
indicated.
First, Check/Set the Media
Size (Default = Letter)
1. Press …
MEDIA MENU
2. Press …
MP TRAY PAPERSIZE
XXXX*
3. Press …
MP TRAY PAPERSIZE
YYYY†
4. Press .
Then, Set the Media Weight
1. Press …
MP TRAY MEDIAWEIGHT
XXXX*
2. Press …
MP TRAY MEDIAWEIGHT
ZZZZ
3. Press , .
*XXXX = current setting.
†YYYY = Letter, Legal-14,
Legal-13.5, Executive, Custom
** ZZZZ = Medium, Heavy, or Ultra
Heavy

8
Loading Media: Trays 1, 2 & 3
1
2
3
4
5
Media Weight Range: 20 to 54 lb. US Bond (75 g/m2to 203 g/m2)
Media Size Range: Tray 1
Paper: min. 4.13'' x 5.83''; max. 8.5'' x 14'' (Non-standard
sizes must be defined in driver before printing.)
Transparencies: letter or A4
Trays 2 & 3 (Optional)
Paper: min. 5.83'' x 8.27''; max. 8.5'' x 14'' (Non-standard
sizes must be defined in driver before printing.)
Capacity: 530 sheets of 20-lb. paper
▼MAX ▼

9
Loading Media: Multi-Purpose (MP) Tray
1
2
3
4
5
6For letterhead stationery:
Media Weight Range up to 113 lb. Index (203 g/m2)
Media Size Range: min. 3.5" x 5"; max. 8.5" x 14" (Non-standard sizes must
be defined in driver before printing.)
Banners: 8.25 to 8.5" [210 to 216 mm] wide by up to
47.25" [1.2 m] long.
Takes: 100 sheets of 20-lb. US Bond paper
50 transparencies
10 envelopes
Labels: max. feed stack = about 3/8-inch (1 cm) high

10
Selecting/Using Paper
Important Information!
For optimum results make sure that the paper you use conforms to the
specifications outlined in the following pages.
We do not recommend the following paper types for use in your printer:
• Paper with cutouts, perforations, or excessive paper dust.
• Heavily coated, glossy, or smooth paper
• Recycled paper
• Embossed, rough, or heavily textured paper
• Paper, inks and dyes that cannot withstand pressure and heat.
Sample Ream Label:
1Media Weight, US Bond (see page 4) [sometimes given as substance]
2Media Weight, Metric: Look for this to confirm US Bond vs. Index.
1
2

11
Selecting/Using Paper (continued)
Specifications
Caution!
The ink on pre-printed letterhead stationery must be able to withstand 446°F
(230°C) for 0.2 second, including mechanical pressures to 25 psi (1.8 kg/cm2).
Note: If you experience curling when printing a file in duplex mode, switch to
28-lb. US Bond paper.
Sizes Feed Tray Exit
Tray
Media
Type
Setting
Media
Weight
Setting
Recommended
Papers
• Letter
• Executive
• Legal-14,
-13.5, -13
•A4,A5,A6
•B5
•Custom
(MP Tray
Only)a
a. Min. = 3.9" x 3.9"; max. = 8.5" x 14". Custom sizes must first be defined in
the printer driver: see your on-line User’s Guide for more information.
Tray 1 Top
Rear
•Plain
(default)
• Letterhead
Auto • OKI 52206101
Bright White
Proofing Paper,
32-lb. US Bond
• Hammermill Laser
Printer Radiant
White, 24 lb., US
Bond
• Xerox 4024,
20 lb.
For best results:
temperature = 65 to
77°F; humidity = 40
to 65%RH
MP Tray Rear
Only
•Plain
(default)
• Letterhead
Auto
• Letter
• Executive
• Legal-14,
-13.5, -13
• A4, A5, B5
Optional
Trays 2, 3
Top
Rear
•Plain
(default)
• Letterhead
Auto

12
Selecting/Using Transparencies
Specifications
Caution!
Transparencies must be able to withstand 446°F (230°C) for 0.2 second,
including mechanical pressures to 25 psi (1.8 kg/cm2).
Important!
Use only recommended transparencies.
Printing Transparencies
For Individual Print Jobs on
Transparencies
Make the following settings in the
printer driver as you print the job:
• Source = Tray1 or MP Tray
• Media Size = Letter or A4
• Media Type = Transparency
•Windows
®Adobe®PostScript®
driver only: deselect Media Check:
Windows 2000/XP
Printing Preferences →Advanced
→Document Options →Printer
Features →Media Check = Off.
Windows Me/98/95
Properties →Setup tab →Paper
Feed Options →deselect Media
Check.
Windows NT 4.0
Document Defaults →Input Slot
Option →Media Check = Off.
Making Transparencies the
Default Print Media
Tray 1
If Tray 1 will normally be loaded with
transparencies, set the printer menu as
follows (see page 5):
• Tray1 MediaType = Transparency
MP Tray
If the MP Tray will normally be
loaded with transparencies, set the
printer menu as follows (see page 6):
• MP Tray PaperSize = Letter (the
default) or A4
• MP Tray MediaType =
Transparency
Usable
Sizes
Feed
Tray
Exit
Tray
Media Type
Setting
Media
Weight
Setting
Recommended
Transparencies
• Letter
•A4
• Tray 1
•MPTray
Rear
Only
Transparency Any
(Ignored)
• OKI 52205701
• 3M CG3720
• Folex BG67 (A4)

13
Selecting/Using Labels
Label Parameters
Important!
Place labels in the MP Tray face up.
Caution!
Labels must be able to withstand 446°F (230°C) for 0.2 second, including
mechanical pressures to 25 psi (1.8 kg/cm2).
Printing Labels
For Individual Print Jobs on
Labels
Make the following settings in the
printer driver as you print the job:
• Source = MP Tray
• Media Size = Letter or A4
• Media Type = Labels
• Windows® Adobe® PostScript®
driver only: deselect Media Check
(see page 12).
Making Labels the Default
Print Media for the MP Tray
If the MP Tray will normally be
loaded with labels, set the printer
menu as follows (see page 6):
• MP Tray PaperSize - Letter or A4
• MP Tray MediaType = Labels
Usable
Sizes Feed Tray Exit Tray
Media
Type
Setting
Media
Weight
Setting
Recommended
Labels
• Letter
•A4
MP Tray
Only
Rear Only Labels • Medium
•Heavy
•Ultra
Heavy
Avery 5161 White
Laser Label, Letter
size

14
Selecting/Using Thick Media
Sample Ream Label:
1Media Weight, Index (see page 4).
2Media Weight, Metric: This
confirms Index vs. US Bond (see
page 4)
Caution!
To prevent damage to the printer, it is
very important to check the printer’s
media settings before printing on
thick paper. It must be set to Medium,
Heavy, or Ultra Heavy—depending
on the thickness of the paper being
used—or to Auto (see page 4 and
“Printing Thick Paper” below).
Parameters
Usable Sizes
• Letter, Executive, Legal-14,
Legal-13.5, Legal-13
• A4, A5, A6, B5
• Custom (minimum = 3'' x 5''; must
be defined in the printer driver).
Feed Tray
• Tray 1, optional Trays 2 and 3 (up to
98 lb. Index)
• MP Tray (up to 113 lb. Index)
Exit Tray
• Rear Only
Media Type Setting
•CardStock
Media Weight Setting
• Trays 1, 2, 3 = Auto
• MP Tray = Medium Heavy, Heavy,
or Ultra Heavy (see page 4)
Recommended Media*
• OKI Premium Card Stock
– 52205601, 60 lb. Cover
– 52205602, 90 lb. Index
– 52205603, 110 lb. Index
• Wasau Exact Index
– 49108, 90 lb.
– 49508, 110-lb.
* For best print results:
temperature = 65 to 77°F (18 to
25°C); humidity = 40 to 65%RH
Printing Thick Paper
Printing Individual Jobs
Make the following settings in the
printer driver as you print the job:
• Source = Trays 1, 2 or 3 (to 98 lb.
Index) or MP Tray (to 113 lb. Index)
• Size = see sizes at left
• Type = Medium Heavy, Heavy or
Ultra Heavy (see page 4).
Making Thick Paper the
Default Print Media
Set the printer menu (see pages 5 and
6) to:
• PaperSize = see sizes at left.
• MediaType = Medium Heavy,
Heavy or Ultra Heavy (see page 4)
1
2

15
Selecting/Using Envelopes
Specifications
Caution!
Envelopes must be able to withstand
446°F (230°C) for 0.2 second,
including mechanical pressures to 25
psi (1.8 kg/cm2)
Important!
For the best print results, use only
the recommended envelopes.
Never use envelopes with metal
clasps, snaps, windows, or V-flap
seals:
Printing Envelopes
To Print an Individual Job on
Envelopes
Make the following settings in the
printer driver as you print the job:
• Source = MP Tray
• Size = COM-10
Making Envelopes the
Default Print Media for the
MP Tray
Set the printer menu to (see pages 5
and 6):
• PaperSize = COM-10
No!
Size Feed
Tray Exit Tray Media Type
Media
Weight Recommended
COM-10 MP Tray
Only
Rear Only Any
Setting
Any
Setting
OKI 52206301
OKI 52206302

16
Selecting/Using OKI Print Media
OKI®Synflex™*
Order # 52205901
 Waterproof
 Tearproof
 White, 8½'' x 11''
(216 x 279 mm)
 100 sheets/box
Use Printer Settings
•Feed Tray = MP Tray Only
•Exit Tray = Rear Only
•MediaType = Plain
•MediaWeight = Ultra Heavy
OKI Bright White
Proofing Paper*
Order # 52206101
 White, 32-lb., 8½'' x 11''
 500 sheets/box
Use Printer Settings
•Feed Tray = Any
•Exit Tray = Top or Rear
•MediaType = Plain
•MediaWeight = Auto
OKI Premium Envelopes
Order #s
52206301 (Box 100)
52206302 (Box 500)
 COM-10 (#10), white wove
 Security tinted, Redi-Strip seal
* For best results: temperature = 65 to
77°F; humidity = 40 to 65%RH
OKI Premium Color
Transparencies
Order # 52205701
 Size 8½'' x 11''
(216 x 279 mm)
 50 sheets/box
Use Printer
Settings
•Feed Tray: Tray 1 or MP Tray
•Exit Tray: Rear Only
•Media Type: Transparency
•Media Weight: Any (ignored)
OKI Premium Card Stock*
 Acid-free archival quality
 White, 8½'' x 11'' (216 x 279 mm)
 250 sheets/box
Use Printer Settings
•Feed Tray: MP Tray Only
•Exit Tray: Rear Only
•Media Type: Plain
•Media Weight:
–60lb.=Heavy
– 90, 110 lb. = Ultra Heavy
To purchase OKI media, contact your
local OKI dealer or visit us at
www.okidata.com.
Weight OKI Order #
60 lb. (Cover) 52205601
90 lb. (Index) 52205602
110 lb. (Index) 52205603

17
Ideas for Using Printer Features
Note: For detailed information on
these features, see your on-line
User’s Guide
Secure Print Feature
 Ideal for printing confidential
documents on a network system.
Idea!
When printing special media, use this
feature to prevent documents being
sent by other clients on the network
from printing on your media:
• Create your document and store it in
the printer’s memory.
• Load the special media.
• Start printing the document by
accessing it through the front panel
(see page 18).
Proof & Print Feature
 Use Proof & Print to proof your
document before printing
multiple copies.
For the latest information and ideas
for your printer, check
my.okidata.com.
Overlays (Forms)
Note: Overlay elements must be
created in your software
application, then stored on the
printer’s hard drive using OKI
Storage Device Manager
before they can be used.
 Great for adding logos, addresses,
letterheads, etc., to your
document, in any combination.
Ideas!
User overlays:
• in place of pre-printed stationery.
• to create forms from pre-stored
modular pieces.
Share Your Ideas!
Have you been using your OKI color
printer’s features in a creative way?
Please share your ideas with us!
• Email us at [e-mail]
• Go to my.okidata.com and click
Contact Us.
• Write us at:
Training & Publications Dept.
Oki Data Americas, Inc.
2000 Bishops Gate Blvd.
Mt. Laurel, NJ 08054-4620
USA

18
Secure Print
To print out a secure (confidential)
document, you must know:
• the document name
• your personal password (PIN)
To Print a Confidential
Document Using the
Control Panel
Note: The “…” in these steps
indicates that you should keep
pressing the button repetitively
until you see the display
indicated.
1. Press …
PRINT JOBS MENU
2. Press .
PRINT JOBS MENU
PIN:
3. Enter your PIN using the control
panel:
SELECT JOB
ALL JOBS
4. Press …
PRINT JOBS MENU
[JOB NAME]
5. Press .
6. The document prints and is deleted
from the printer’s hard drive.
7. The printer goes back on line.
To Delete the Document
before Printing It
Follow steps 1 through 4 above, then:
1. Press .
2. Press .
3. The document is deleted from the
printer’s hard drive and the printer
goes back on line.

19
Proof & Print
To print a proofed document, you
must know:
• the document name
• your personal password (PIN)
To Print a Proofed
Document Using the
Control Panel
Note: The “…” in these steps
indicates that you should keep
pressing the button repetitively
until you see the display
indicated.
1. Press …
PRINT JOBS MENU
2. Press .
PRINT JOBS MENU
PIN:
3. Enter your PIN using the control
panel:
SELECT JOB
ALL JOBS
4. Press …
PRINT JOBS MENU
XXXX*
5. Press .
6. The document prints and is deleted
from the printer’s hard drive.
7. The printer goes back on line.
*XXXX = the name of the job you
wish to print.
To Delete the Document
before Printing It
Follow steps 1 through 4 above, then:
1. Press .
2. Press .
3. The document is deleted from the
printer’s hard drive and the printer
goes back on line.