Lexmark X850e User Manual

Supported print media
81
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
82
Understanding paper and specialty media guidelines
Selecting print media
Selecting the appropriate print media for the MFP helps you avoid printing problems. The following sections contain 
guidelines for choosing the correct print media for the MFP.
 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
83
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
84
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
85
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 MFP before buying large quantities.
When printing on transparencies:
Be sure to set the Paper Type to Transparency from the MFP driver or from MarkVision™ Professional to avoid 
damaging the MFP.
Use transparencies designed specifically for laser printers. Transparencies...

Selecting print media
86
Understanding paper and specialty media guidelines
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.
Do not load different size envelopes at the same time.
A combination of high humidity (over 60%) and the high printing...

Storing print media
87
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 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 MFP before purchasing a large quantity.
See Print media weights for information on...

Avoiding jams
88
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 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...

4
Contents
Chapter 1: Learning about the MFP  .................................................................................. 8
Identifying the MFP  .......................................................................................................................................... 8
Using the scanner  ............................................................................................................................................ 8
Configured models...

Accessing the MFP system board
90
Installing options
Accessing the MFP system board
You must access the MFP system board to install printer memory, flash memory, or an option card.
CAUTION:Turn the MFP off, and unplug the power cord before continuing.
1Loosen the screws on the access panel located on the back side of the MFP.
2Remove the panel from the MFP, and set it aside.
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