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)
Labels—maximum
2,4Paper 180 g/m2
(48 lb bond)199 g/m2
(53 lb bond)
Envelopes
2Sulfite, wood-free or up 
to 100% cotton bondsInapplicable 60 to 105 g/m2
(16 to 28 lb
bond)5, 6
Media types and weights (continued)
Legend

 — supported
✘— unsupported
Media
Ty p e
Media weight
550-sheet traysMultipurpose feeder
1 Paper weighing less than 75 g/m2 (20 lb bond) is limited to simplex printing only at less than 60% relative 
humidity.
2 This paper weight in any source is not supported for duplex (two-sided) printing.3 For 60 to 176 g/m2(16 to 47 lb bond) paper, grain long fibers are recommended. For papers heavier than 176 g/
m2 (47 lb bond), grain short is recommended.4 Pressure sensitive area must enter the printer first.5 100% cotton content maximum weight is 90.2g/m2 (24 lb) bond.6 105 g/m2 (28 lb bond) envelopes are limited to 25% cotton content.
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							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 tray—tray 2.
By linking both trays, a single source with a capacity of 1100 sheets is created.
If the same size media in each tray is loaded, make sure the media is all the same type in order to link the trays.
Once the selected trays are loaded with the same size and type of media, select the same Paper Type setting in the Paper 
Menu for these sources.
To disable tray linking, set the Paper Type to a unique value in each one of the trays. If all the trays do not have the same 
type of media when they are linked, a job could mistakenly print on the wrong paper type.
Using the duplex function (two-sided printing)
Duplex printing (or two-sided printing) allows printing on both sides of a sheet of paper. Printing on both sides of paper 
reduces printing costs.
Media capacities
Legend

 — supported
✘— unsupported
Media type
550-sheet tray
Multipurpose 
feeder
Optional high 
capacity 
feeder
Optional 
finisher bin 1Optional 
finisher bin 2
Paper550 sheets* 100 sheets* 3000 100 1000
Card stock40 sheets** 11✘100✘
Paper labels40 11✘30✘
Vinyl labels✘11✘30✘
Transparencies20 7✘50✘
Envelopes✘10 of Com 10✘10✘
* Based on 20 lb paper.
** 30 sheets of 90 lb card stock or 25 sheets of 110 lb card 
stock.
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							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 or short 
edge binding must be selected, which are the values for this setting. The purpose of Duplex Bind is to define the way 
duplexed pages are bound, and how the printing on the back of the sheet (even-numbered pages) is oriented in relation to 
the printing on the front (odd-numbered pages).
The two values for Duplex Bind are:
Long Edge*
The asterisk (*) 
indicates this is 
the factory default 
setting.Assumes binding along the long end of the page (left edge for portrait orientation 
and top edge for landscape orientation). The following illustration shows long-edge 
binding for portrait and landscape pages:
Short EdgeAssumes binding along the short edge of the page (top edge for portrait 
orientation and left edge for landscape orientation). The following illustration 
shows short-edge binding for portrait and landscape pages: 
Binding
Binding
Back of 
sheetFront of 
next sheet
Por traitBack of sheet
Front of next 
sheet
Po r t rai tLandscape Back of 
sheet
Front of 
next sheetBack of 
sheetFr o nt  of  
next sheet Binding
Binding
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							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 the multipurpose feeder, or Loading the high capacity feeder for detailed tray loading 
instructions.
The following hints can help you avoid jams:
Use only recommended print media.
Do not overload the print media sources. Make sure the stack height does not exceed the maximum height 
indicated by the stack line on the labels in the sources.
Do not load wrinkled, creased, damp, or curled print media.
Flex, fan, and straighten print media before you load it. If jams do occur with print media, try feeding one sheet at 
a time through the multipurpose feeder.
Do not use print media that you have cut or trimmed yourself.
Do not mix print media sizes, weights, or types in the same print media source.
Make sure the recommended print side is loaded in the source according to your simplex or duplex needs.
Keep print media stored in an acceptable environment. See Storing media.
Do not remove trays during a print job.
Push all trays in firmly after loading them.
Make sure the guides in the trays are properly positioned for the size of print media you have loaded. Make sure the guides 
are not placed too tightly against the stack of print media.
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							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 countries or regions, visit the Lexmark Web site at www.lexmark.com or contact the place where you bought your 
printer.
Storing supplies
Choose a cool, clean storage area for your printer supplies. Store supplies right side up in their original packaging until you 
are ready to use them.
Do not expose supplies to:
Direct sunlight
Temperatures above 35°C (95°F)
High humidity (above 80%)
Salty air
Corrosive gases
Heavy dust
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							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 / Supplies screen where you can view the status of the various trays and open the 
supplies screen to view the current status of your toner cartridge.
Conserving supplies
Several settings in your application software or on the display let you conserve toner and paper. For more information on 
changing these settings, see the Menus and Messages Guide.
SupplyMenu selection itemWhat the setting does
Toner Toner Darkness in the 
Defaults
Æ Quality MenuLets you adjust the level of toner released on a sheet of print media. The 
values range from 1 (lightest setting) to 5 (darkest setting).
Color toner 
and color 
photo-
developersBlack Only Print Mode in the 
Defaults
Æ Quality MenuPrints black only to conserve your color print supplies.
Color toner Color Saver in the Defaults
Æ 
Quality MenuPrints colors less vividly to conserve your color toner.
Print media Multipage Print in the 
Defaults
Æ Finishing MenuCauses the printer to print the two or more page images on one side of a 
sheet. Values for Multipage Print are 2 Up, 3 Up, 4 Up, 6 Up, 9 Up, 12 
Up, and 16 Up. Combined with the duplex setting, Multipage Print lets 
you print up to 32 pages on one sheet of paper (16 images on the front 
and 16 on the back).
Duplex in the Defaults
Æ 
Finishing MenuDuplex printing is available when you attach the optional duplex unit. It 
lets you print on both sides of a sheet of paper.
Use your software application 
or printer driver to send a 
Verify Print job.Lets you examine the first copy of a multiple-copy job to be sure it is 
satisfactory before you print the other copies. If the job is unsatisfactory, 
you can cancel the job.
See Printing and deleting held jobs for more information about a 
Verify Print job.
Ready. Tray 1 Low, Tray 2 Low…Status / Supplies
View supplies
Ready
Tr a y  1 L o w Status / Supplies
Held jobs
View supplies
Cyan Toner: OK
Magenta Toner: OK
CMYK
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							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 on. You need to have a new cartridge available when the current one no longer prints 
satisfactorily.
Note:Be sure to shake your new print cartridge before installing it into the printer to maximize its yield.
The recommended print cartridges specifically designed for your printer are:
When the message Replace Black Toner and Oil Coating Roll appears, the black cartridge is empty. Replace both the black 
toner cartridge and the oil coating roll. Order Lexmark part number C92035X to replace the oil coating roll.
Fuser and transfer belt
Order a fuser or a transfer belt when Fuser Life Warning or Transfer Belt Life Warning appears on the display. 
Replace the items when Replace Fuser or Replace Transfer Belt appear. Each kit contains all the items necessary to 
replace either the transfer belt or the fuser. See the following table for the maintenance kit part number for your specific 
printer. 
Ordering a black photodeveloper or color photodevelopers
We recommend ordering new photodevelopers when Black Photo Dev Life Warning or Color Photo Dev Life 
Warning appears on the display.
Note:When replacing color photodevelopers, it is important to replace all four color photodevelopers at 
once.
Order Lexmark part number C92030X for black or C92034X for color photodevelopers.
Par t numberDescriptionAverage yield1
C9202CH Cyan toner cartridge 14,000 pages
C9202MH Magenta toner cartridge 14,000 pages
C9202YH Yellow toner cartridge 14,000 pages
C9202KH Black toner cartridge 15,000 pages
1 At approximately 5% coverage.
Maintenance itemsPart numbers
Transfer belt 0040X1251
Fuser 56P2650 (110 V) 
56P2651 (220 V)
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							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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