Lexmark W840 User Manual

Supported print media
41
Understanding paper and specialty media guidelines
Media weights supported in the finisher
Print mediaTyp e
Finisher media weight
Bin 1
Bin 2
OffsetStapleHole Punch
PaperXerographic or 
business paper64 to 105 g/m
2 grain 
long (17 to 28 lb 
bond)64 to 216 g/m2 
grain long (17 to 
58 lb bond) 40 sheets of 
90 g/m2 grain 
long (24 lb 
bond)
 50 sheets of 
64 to 75 g/m
2 
grain long (17 
to 20 lb bond)64 to 216 g/m
2 
grain long (17 to 
58 lb bond)
Card stock—
maximum
(grain...

Selecting print media
42
Understanding paper and specialty media guidelines
Selecting print media
Selecting the appropriate print media for the printer helps you avoid printing problems. The following sections contain 
guidelines for choosing the correct print media for the printer.
Paper
Transparencies
Envelopes
Labels
Card stock
Paper
To ensure the best print quality and feed reliability, use 90 g/m2 (24 lb) xerographic, grain long paper. Business papers 
designed for general business use may also...

Selecting print media
43
Understanding paper and specialty media guidelines
Smoothness
The degree of smoothness of paper directly affects print quality. If the paper is too rough, the toner does not fuse to the 
paper properly, resulting in poor print quality. If the paper is too smooth, it can cause paper feeding or print quality issues. 
Smoothness needs to be between 100 and 300 Sheffield points; however, smoothness between 150 and 250 Sheffield 
points produces the best print quality.
Moisture...

Selecting print media
44
Understanding paper and specialty media guidelines
Do not use paper that has been cut or trimmed by hand.
Do not mix media sizes, weights, or types in the same source; mixing results in jams.
Do not use coated papers unless they are specifically designed for electrophotographic printing.
Do not forget to change the Paper Size setting when using a source that does not support auto size sensing.
Do not remove trays while a job is printing or Busy appears on the operator...

Selecting print media
45
Understanding paper and specialty media guidelines
Transparencies
Feed transparencies from the standard tray or the multipurpose feeder. Try a sample of any transparencies being 
considered for use with the printer before buying large quantities.
When printing on transparencies:
Be sure to set the Paper Type to Transparency from the printer driver or from MarkVision™ Professional to avoid 
damaging the printer.
Use transparencies designed specifically for laser printers....

Selecting print media
46
Understanding paper and specialty media guidelines
–Have rough, cockle, or laid finishes.
Use envelopes that can withstand temperatures of 230°C (446°F) without sealing, excessive curling, wrinkling, or 
releasing hazardous emissions. If you have any doubts about the envelopes you are considering using, check with 
the envelope supplier.
Adjust the width guide to fit the width of the envelopes.
Load only one size of envelope at a time.
A combination of high humidity (over...

Storing print media
47
Understanding paper and specialty media guidelines
Card stock
Card stock is single ply, and has a large array of properties, such as the moisture content, thickness, and texture, that can 
significantly affect print quality. See Supported print media on page 35 for information on the preferred weight and for the 
grain direction of print media.
Try a sample of any card stock you are considering using with the printer before purchasing a large quantity.
See Print media weights on...

Avoiding jams
48
Understanding paper and specialty media guidelines
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...

Printing
49
6Printing
This chapter covers information about loading print media, linking output bins, sending a job to print, printing confidential 
jobs, canceling a print job, printing a menu settings page, a font list, and a directory list. For tips on paper jam prevention 
and print media storage, see Avoiding jams on page 47 or Storing print media on page 47.
Loading standard or optional 500-sheet trays
Your printer has two 500-sheet standard trays. You may have also purchased an optional...

Loading standard or optional 500-sheet trays
50
Printing
2Squeeze the side guide tab, and slide the guide to outside of the tray.
3Squeeze the front guide tab and slide the guide to the correct position for the size media you are loading.
4Flex the sheets back and forth to loosen them, then fan them. Do not fold or crease the print media. Straighten the 
edges on a level surface.
5Load print media in the tray with the print side up.
For information about loading Letter or A4 size media in the short-edge...