Lexmark C 750 How to use

www.lexmark.com
Release Notes
August 2001
Lexmark C750

1
1Aligning the image transfer unit
For best print quality, make sure you align the image transfer unit after replacement or if colors print too
lightly.
To align the image transfer unit:
1On the printer operator panel, press and hold Select and Return while turning the printer on.
2When Performing Self Test appears, release the buttons.
3When Config Menu appears, press Menu until you see ITU Alignment, and then press
Select.
A test page prints.
4Look at the test page and select a number value for each of the twelve settings where the color
is most intense. Select a value in the range of -10 to +10 to the nearest .5 increment. For
example, you may find for the Test A alignment that your color is most intense at the 4.5 value.
It is helpful to write all twelve alignment values in the lines provided on the test page before
going on to step e. You must select a value for all twelve settings.
5When you see Test A Alignment, press Menu until you find the number value you want to
use, and then press Select. A Saved message briefly appears and then the next test alignment
displays.
6After you have completed all twelve settings, Config Menu appears. Press Menu until you see
Exit Config Menu, and then press Select.
The printer returns to the Ready state.

2
2Ordering supplies and maintenance
items
In the U.S. or Canada, call 1-800-438-2468 for information about Lexmark Authorized Supplies
Dealers in your area. In other countries, contact the place where you bought your printer.
Ordering a fuser
Use P/N 12G6498 to order a fuser for a 100 V printer. Use P/N 12G6496 to order a fuser for a 115 V
printer. Use P/N 12G6497 to order a fuser for a 220 V printer.
Ordering an image transfer unit and transfer roller
Use P/N 12G6304 to order an image transfer unit and second transfer roller.

3
3Printing multi-language PDFs
Symptom Cause Solution
Somemaintenanceand
troubleshooting
documents do not
print.
The documents contain
unavailable fonts. 1Open the document you want to print in Adobe Acrobat.
2Click the printer icon.
The Print dialog box appears.
3Check the Print as image box.
4Click OK.

4
4Supplies Menu
The Supplies Menu provides information about printer supplies that require attention. It is only
available when a supply is low or needs replacement.
Oiler
Purpose:
To view the status of the web oiler.
Values:
Near Exhausted

5
5Setup Menu
Use the Setup Menu to configure a variety of printer features.
Note: Values marked by an asterisk (*) are the factory default settings.
Printer Usage
Purpose:
To determine the behavior of the image transfer unit during printing.
Values:
Toner Alarm
Purpose:
To specify how the printer responds when it is low on toner.
Values:
Max Speed The image transfer unit is engaged throughout the print job.
Max Yield* The image transfer unit position is engaged based on page content. This may
extend the life of certain print supplies.
Off An error message is displayed until someone replaces the toner cartridge. If an
Auto Continue value is selected from the Setup Menu, the printer resumes printing
after the specified timeout value.
Single* Printer stops printing, displays an error message, and sounds three quick beeps.
Continuous Printer stops printing, displaysan errormessage, andrepeats three beeps every 10
seconds until the toner cartridge is replaced.

6
6Parallel Menu
Use the Parallel Menu to change printer settings affecting jobs sent to the printer through a parallel
port (either Std Parallel or Parallel Opt <x>).
Note: Values marked by an asterisk (*) are the factory default settings.
MAC Binary PS
Purpose:
To configure the printer to process Macintosh binary PostScript print jobs.
Values:
On Printer processes raw binary PostScript print jobs from computers using the Macintosh
operating system.
Note: This setting often causes Windows print jobs to fail.
Off Printer filters PostScript print jobs using standard protocol.
Auto* Printer processes print jobs from computers using either Windows or Macintosh operating
systems.

7
7Paper Menu
Use the Paper Menu to define the paper loaded in each paper tray and the default paper source and
output bin.
Note: Values marked by an asterisk (*) are the factory default settings.
Assign Type/Bin
Purpose:
To send print jobs to a specific output bin based on the requested paper type.
Values (for Standard Bin* and Bin <x>):
Note: If a user-defined name is available, it is displayed instead of Custom <x> Bin. The
name is truncated to 14 characters. If two or more bins share the same name, the
name only appears once in the Assign Type/Bin value list.
Plain Paper Bin Envelope Bin
Card Stock Bin Letterhead Bin
Transparency Bin Preprinted Bin
Glossy Paper Bin Colored Bin
Labels Bin Custom <x> Bin (where <x> represents 1 through 6)
Bond Bin

8
Custom Types
Purpose:
To specify the kind of paper associated with each of the Custom Types available in the Paper Type
menu item.
Values for Custom Type <x>, where <x> represents 1, 2, 3, 4, 6 (paper only), or 5
(transparencies only):
Note: If a user-defined name is available, itis displayed instead of Custom Type <x>. The
user-defined name istruncated to14 characters.If two or more custom types share
the same name, the name only appears once in the Custom Types value list.
Paper Loading
Purpose:
To properly handle preprinted paper loaded in a tray, whether the job is a duplexed job or a
single-sided job.
Values:
First select a paper type:
Then select a value:
Note: If a user-defined name is available, it is displayed instead of Custom <x> Loading.
The name is truncated to 14 characters.
Paper* Glossy Paper
Card Stock Labels
Transparency Envelope
Card Stock Load Colored Loading Ltrhead Loading Bond Loading
Glossy Loading Custom <x> Loading Preprint Loading
Duplex Notifies the printer that the specified paper type is loaded properly for duplex printing. If
the printer receives a single-sided job using that paper type, the printer inserts blank
pages as necessary to print the job properly on preprinted forms. This setting may slow
single-sided printing.
Off* Printer assumes preprinted material is loaded for single-sided printing. Duplexed jobs
may not print properly.

9
Paper Texture
Purpose:
To identify the texture of the paper loaded in a specific source and to ensure that characters print
clearly.
Values:
First select a paper type:
Then select a value:
Note: The default for Bond Texture is Rough instead of Normal. Ifa user-defined name is
available for a custom Type, then the name is displayed instead of Custom <x>
Texture. The name is truncated to 14 characters.
Use Paper Texture in connection with the Paper Type and Paper Weight menu items. You may need to
change those menu items to optimize print quality for your specific paper.
Plain Texture Preprint Texture Labels Texture Ltrhead Texture
Card Stock Text Colored Texture Bond Texture Glossy Texture
Trnsprncy Text Custom <x> Texture Envelope Texture
Smooth
Normal*
Rough

10
Paper Type
Purpose:
To identify the type of paper installed in each paper source.
Values:
First select a paper source:
Then select a value:
The Paper Type default for each envelope source is Envelope. The Paper Type default for each paper
tray is as follows:
Note: If a user-defined name is available, itis displayed instead of Custom Type <x>. The
user-defined name istruncated to14 characters.If two or more custom types share
the same name, the name only appears once in the Paper Type value list.
Use this menu item to:
•Optimize print quality for the specified paper.
•Select paper sources through your software application by selecting type and size.
•Automatically link paper sources. Any sources containing the same type and size of paper are
automatically linked by the printer, if you have set the Paper Size and the Paper Type to the
correct values.
Tray <x> Type MP Feeder Type
Manual Pap Type Manual Env Type
Plain Paper Labels Preprinted Envelope
Card Stock Bond Custom Type <x> Colored Paper
Transparency Letterhead Glossy Paper
Tray 1–Plain Paper Tray 4–Custom Type 4
Tray 2–Custom Type 2 Manual Pap Type–Plain Paper
Tray 3–Custom Type 3

11
Paper Weight
Purpose:
To identify the relative weight of the paper loaded in a specific source and ensure that the toner
adheres properly to the printed page.
Values:
First select a paper type:
Then select a value:
Note: If a user-defined name is available, it is displayed instead of Custom <x> Weight.
The name is truncated to 14 characters.
Plain Weight Preprint Weight Bond Weight Labels Weight
CardStock Weight Colored Weight Envelope Weight Ltrhead Weight
Trnsprncy Weight Custom <x> Weight Glossy Weight
Light
Normal*
Heavy

12
8Understanding Printer Messages
Held Jobs May
Not Be Restored
What this message means:
The printer memory cannot restore Print and Hold jobs from the printer hard disk.
What you can do:
Press Go to clear the message. Some of the Print and Hold jobs stored on the disk will not be
restored.
Load <x>
Plain Letter
What this message means:
Someone has initiated a tray calibration procedure.
What you can do:
Load paper into <x> and press Go to continue the calibration process.
32 Unsupported
<color> Cartridge
What this message means:
An unsupported print cartridge is installed.
What you can do:
Remove the specified print cartridge and install a new one.

13
58 Input
Config Error
What this message means:
Too many drawers with matching trays are installed on the printer.
What you can do:
Turn off and unplug the printer. Remove the additional drawers. Plug in the printer and turn it
on.
82 Waste Bottle Nearly Full
What this message means:
The toner waste container is almost full.
What you can do:
•Press Go to clear the message and continue printing.
•Replace the toner waste container.
83 ITU Maintenance
What this message means:
The counter that tracks wear on the image transfer unit has reached its limit.
What you can do:
•Press Go to continue printing.
•If print quality is unacceptable, replace the image transfer unit.
84 Oiler Nearly Exhausted
What this message means:
The web oiler is nearing the end of its life.
What you can do:
•Press Go to clear the message and continue printing.
•Replace the web oiler.

14
84 Replace Oiler
What this message means:
The web oiler has reached its end of life or is missing from the printer.
What you can do:
Replace the web oiler.

15
9Infrared Menu
Use the Infrared Menu to change printer settings affecting jobs sent to the printer through an infrared
port.
Note: Values marked by an asterisk (*) are the factory default settings.
Infrared Buffer
Purpose:
To configure the size of the infrared input buffer.
Values:
Note: Changing the Infrared Buffer menu item automatically resets the printer.
Disabled Disables job buffering. Any jobs already buffered on the disk are printed before
normal processing of incoming jobs resumes.
Auto* Printer automatically calculates the Infrared Buffer size (recommended
setting).
36K to maximum
size allowed User specifies the Infrared Buffer size. The maximum size setting depends on the amount of memory in your printer, the size of the other link buffers, and
whether Resource Save is set to On or Off. To maximize the range for the
Infrared Buffer size, disable or reduce the size of the parallel, serial, network,
LocalTalk, and USB buffers.

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