Troubleshooting

Symptom

Cause

Solution

Uneven print density

• The print cartridges are

• Replace the print cartridges.

 

defective.

• Replace the transfer roller.

 

• The transfer roller is worn or

• Replace the image transfer unit.

ABCDE

defective.

 

• The image transfer unit is worn

 

or defective.

 

ABCDE

 

 

ABCDE

 

 

Ghost Images

 

Toner level is low in the print

Replace the print cartridges.

 

 

 

 

 

 

cartridges.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Clipped images

Guides in the selected tray are set

Move the guides in the tray to the proper positions

(Some of the print is cut

for a different size paper than

for the size loaded.

what is loaded in the tray.

 

off on the sides, top, or

 

 

 

bottom of the paper.)

 

 

 

 

 

Incorrect margins

• Guides in the selected tray are

• Move the guides in the tray to the proper positions

 

set for a different size paper

for the size loaded.

 

than what is loaded in the tray.

• Set the Paper Size to match the media in the tray.

•Auto size sensing is set to off, but you loaded a different size paper in a tray. For example, you inserted A4 size paper into the selected tray but did not set the Paper Size to A4.

Skewed print

• Guides in the selected tray are

• Move the guides in the tray to the proper positions

(Print is inappropriately

not in the correct position for

for the size loaded.

the paper size loaded in the

• See the Card Stock & Label Guide available on

slanted.)

tray.

the Lexmark Web site at www.lexmark.com for

 

 

• You are using paper that does

detailed specifications.

 

not meet the printer

• For more information, see Media specifications.

 

specifications.

 

 

 

 

Blank pages

• The print cartridges are

• Replace the print cartridges.

 

defective or empty.

 

 

 

 

Solid color pages

• The print cartridges are

• Replace the print cartridges.

 

defective.

• Call for service.

 

• Your printer requires servicing.

 

 

 

 

The paper curls badly

• The Type, Texture, and Weight

• Change Paper Type, Paper Texture, and Paper

once it prints and exits to

settings are not appropriate for

Weight to match the paper or specialty media

a bin.

the type of paper or specialty

loaded in the printer.

 

media you are using.

• Load paper from a fresh package.

 

• The paper has been stored in a

• Store paper in its original wrapper until you use it.

 

high humidity environment.

• For more information, see Storing paper.

Solving print quality problems

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Lexmark C772, C770 manual Bcd E
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C772, C770 specifications

The Lexmark C770 and C772 series of printers are robust color laser printers designed for medium to large workgroups that demand high-quality printing along with impressive speed and efficiency. These models stand out due to their impressive set of features and advanced technologies, catering to a range of business printing needs.

One of the hallmarks of the Lexmark C770 and C772 is their print quality. With a resolution of up to 1200 x 1200 dpi, these printers deliver sharp text and vibrant color graphics, making them ideal for producing professional-looking documents, presentations, and marketing materials. Additionally, the printers utilize Lexmark's unique Unison toner technology, which ensures consistent, high-quality printing throughout the life of the cartridge, reducing the need for frequent replacements and maximizing productivity.

Speed is another significant advantage of the C770 and C772 series. Both models are capable of printing at impressive speeds of up to 35 pages per minute for black and white prints and slightly lower for color documents. This rapid output allows businesses to meet tight deadlines without compromising on quality. Furthermore, the first-page-out time is notably fast, ensuring that users do not waste time waiting for their documents.

Connectivity options are extensive with the C770 and C772. These printers support USB, Ethernet, and optional wireless connections, enabling seamless integration into various network environments. This flexibility allows multiple users and devices to access the printer, facilitating collaboration and streamlining workflows.

Additionally, user-friendly features such as a large, intuitive LCD screen and an easy-to-navigate interface simplify printer management and operation. The printers also support advanced finishing options, including duplex printing, which saves paper and reduces costs, making them environmentally friendly choices for businesses.

Moreover, security features are incorporated to protect sensitive data, with options for secure printing and data encryption. This makes these printers suitable for environments where confidentiality is crucial.

In summary, the Lexmark C770 and C772 series are powerful color laser printers that combine exceptional print quality, impressive speed, versatile connectivity, and advanced features, making them a worthy investment for businesses looking to enhance their printing capabilities.
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