Lexmark C750 Service Manual - Page 57

Diagnostic information

2-23

5060-00

x

Utilities Menu

Print Resolution

To define the number of dots printed

per inch (dpi). The higher the value,

the sharper the clarity of printed

characters and graphics.

2400 IQ*

Provides the highest resolution for

detailed line art or images.

1200 dpi

Provides high quality output for text and

business graphics, such as line art and

electronically generated charts. This

setting also provides increased gloss.

Toner Darkness

To lighten or darken text images, or

conserve toner.

1–5 (4*)

1 is lightest; 5 is darkest.

Select a lower value for finer line width,

higher definition in graphics, and lighter

grayscale images. Select a higher value

for bolder line widths or darker grayscale

images. Select 5 for very bold text.

Select a value less than 4 to conserve

toner.

A vertical bar ( | ) indicates the factory

default value. An arrow symbol ( V )

indicates a user default value.

Menu Item

Purpose

Values

Color Adjust

To manually relinearize the color

tables, adjusting for variations in

output that occur as a result of

environmental conditions.

Color Samples

To assist in selecting colors used by

certain applications.

Defragment

Flash

To retrieve storage area lost when

resources are deleted from flash

memory.

Warning:

Do not turn off the printer

while the flash is defragmenting.

Yes

Printer transfers all resources stored in

flash memory to printer memory and

then reformats the flash memory option.

When the format operation is complete,

the resources are loaded back into flash

memory.

No

Printer cancels the request to

defragment the flash memory.

Factory Defaults

To return your printer settings to the

factory default values.

Restore

•

All menu items are returned to the

factory default values except:

-

Display Language.

-

All settings in the Parallel Menu,

Serial Menu, Network Menu,

Infrared Menu, LocalTalk Menu,

and USB Menu.

•

All downloaded resources (fonts,

macros, and symbol sets) in printer

memory (RAM) are deleted.

(Resources residing in flash memory

or on the hard disk are unaffected.)

Do Not

Restore

User-defined settings remain.

Menu Item

Purpose

Values

Section	Page
Table of contents	3
Notices and safety information	11
Laser notice	11
Safety information	17
Preface	20
Definitions	20
1. General information	21
Tools required for service	21
Options and features	22
High performance	22
Print quality	22
Heavy volume reliability	22
Automatic calibration	22
Resolution	23
Toner darkness	23
Printer specifications	23
Dimensions	23
Power and electrical specifications	23
Electrical specifications	24
Operating clearances	24
Fuser web oiler upgrade kit and replacements	24
Upgrade kit	24
Replacements	24
Acoustics	25
Environment	25
Print speed and performance print speed	26
Performance	26
Time to first print	26
Processor	26
Duty cycle	26
Memory configuration	27
Available memory options	27
Media specifications	27
Acronyms	33
2. Diagnostic information	35
Start	35
POR (power-on reset) sequence	36
Symptom tables	37
Symptom table-base printer	37
Symptom table-500-sheet drawer option	38
Symptom table-HCIT 2000-sheet option	38
Symptom table-output expander option	39
Symptom table-5-bin mailbox option	39
Symptom table-finisher option	39
Error code table	40
Sub error code table	51
Programming errors - P101 through P116	54
Understanding the printer operator panel	54
Operator panel buttons	54
Color Menu	56
Utilities Menu	57
User attendance message table	62
Service checks	76
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Lexmark C750 Service Manual - Page 57

Lexmark C750 Manual

Page 57 highlights