Lexmark C920 User Manual

Identifying media sources and specifications
81
Media specifications
Card stock—maximum
(grain long)2,3Index Bristol 163 g/m2 (90 lb) 163 g/m2 (90 lb)
Tag 163 g/m2 (100 lb) 163 g/m2 (100 lb)
Cover 176 g/m2 (65 lb) 176 g/m2 (65 lb)
Card stock—maximum
(grain short)
2,3Index Bristol 199 g/m2 (110 lb) 199 g/m2 (110 lb)
Tag 203 g/m2 (125 lb) 203 g/m2 (125 lb)
Cover 216 g/m2 (80 lb) 216 g/m2 (80 lb)
Transparencies
2Laser printer 161 to 192 g/m2
(43 to 51 lb bond)161 to 192 g/m2
(43 to 51 lb bond)...

Tr a y  l i n k i n g
82
Media specifications
Tray linking
Tray linking enables the automatic linking feature for trays when the same size and type of media is loaded in multiple 
sources. The printer automatically links the trays; when one tray is empty, media feeds from the next linked tray.
For example, if the same size and type of media is loaded in tray 1 and tray 2, the printer selects media from tray 1 until it 
becomes empty, and then the printer automatically feeds media from the next linked...

Using the duplex function (two-sided printing)
83
Media specifications
For sizes that are acceptable for duplex printing, see Media sizes and support.
Select Duplex from the printer driver to print individual duplex jobs.
Duplex printing on letterhead
When duplex (two-sided) printing on letterhead from the trays, load it with the logo face-up and entering the printer first.
Using Duplex Bind
When Duplex Bind printing is selected in the printer driver or Duplex Bind in the Finishing Menu, either long edge...

Avoiding jams
84
Media specifications
Avoiding jams
Use appropriate print media (paper, transparencies, labels, and card stock) to help ensure trouble-free printing. See 
Identifying media sources and specifications for more information.
Note:Try a limited sample of any print media you are considering using with the printer before purchasing 
large quantities.
By selecting the appropriate print media and loading it properly, you can avoid most jams. See Loading standard trays 
and optional trays, Loading...

Maintaining the printer
85
7Maintaining the printer
Periodically, you need to complete certain tasks to maintain optimum print quality. These tasks are covered in this chapter.
If several people are using the printer, you may want to designate a key operator to do the setup and maintenance of your 
printer. Refer printing problems and maintenance tasks to this key operator.
In the U.S., contact Lexmark at 1-800-539-6275 for information about Lexmark Authorized Supplies Dealers in your area. In 
other...

Determining the status of supplies
86
Maintaining the printer
Determining the status of supplies
The printer operator panel alerts you once a supply item or maintenance is required. You can also view the status of 
supplies in your printer on the operator panel unless the printer is printing or in a busy state. The header or gray area at the 
top of the display will indicate the printer is Ready and lets you know if any trays are low. Selecting Status / Supplies on 
the display will open the Status /...

Ordering supplies
87
Maintaining the printer
Ordering supplies
To order supplies in the U.S., contact Lexmark at 1-800-539-6275 for information about Lexmark Authorized Supplies 
Dealers in your area. In other countries or regions, visit the Lexmark Web site at www.lexmark.com or contact the place 
where you bought your printer.
Ordering a toner cartridge
When the [color] Low message appears, you should order a new print cartridge. You can print a few hundred pages after 
the [color] Low message comes...

Cleaning the LEDs
88
Maintaining the printer
Finisher
For information on finisher maintenance and ordering finisher supplies, see the Finisher Setup and Users Guide that came 
with your finisher.
Cleaning the LEDs
If you are experiencing print quality problems such as voids, light streaks, or light print, you may need to clean the LEDs 
inside the top cover.
1Open the top cover.
aOpen the front door.
bRotate the top cover locking lever to the left.
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Cleaning the LEDs
89
Maintaining the printer
cPush up on the right top cover locking button and at the lift points shown below.
dLift the top cover until it stops.
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Cleaning the LEDs
90
Maintaining the printer
2Remove and re-insert each photodeveloper.
Warning:Exposing the photodevelopers to light for prolonged periods of time can damage it. Do not expose the 
photodevelopers to light for more than ten minutes. Fingerprints can affect the performance of the 
photodevelopers. Avoid touching the photodevelopers anywhere except the handles.
aOpen the waste toner arm.
bRemove the photodeveloper completely, and then re-insert it.
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