HP OfficeJet Pro K850 User Manual

Transparencies
●Insert transparencies with the rough side down and the adhesive strip pointing towards the back
of the printer.
●Use the Best mode to print transparencies. This mode provides longer drying time and ensures
that the ink dries completely before the next page is delivered to the output tray. Allowing wet
media to stack up might cause smearing.
Custom-size media
●Use only custom-size media supported by the printer.
●If your application supports custom-size media, set the media size in the...

Media sizeInput trayFront manual
feed slotRear manual
feed slotAuto duplex
(duplex unit)Manual duplex
Statement
(140 by 216 mm;
5.5 by 8.5 inches) 
A5
(148 by 210 mm;
5.83 by 8.27
inches) 
A6
(105 by 148 mm;
4.13 by 5.83
inches) 
B4
(257 by 364 mm;
10.1 by 14.3
inches)
B5 (JIS)
(182 by 257 mm;
7.2 by 10.1 inches)
Tabloid
(279.4 by 431.8
mm; 11 by 17
inches)
A3
(297 by 420 mm;
11.7 by 16.5
inches)
A3+
(330 by 483 mm;
13.0 by 19.0
inches)
Banner A3
(297 by 420 mm;
11.7 by 16.5
inches) 
Banner A4
(210 by...

Media sizeInput trayFront manual
feed slotRear manual
feed slotAuto duplex
(duplex unit)Manual duplex
Banner Tabloid
(279.4 by 431.8
mm; 11 by 17
inches) 
Panorama A4
(210 by 594 mm;
8.27 by 23.39
inches) 
Panorama
(101.6 by 254
mm; 4 by 10
inches) 
Panorama
(101.6 by 279.4
mm; 4 by 11
inches) 
Panorama
(101.6 by 304.8
mm; 4 by 12
inches) 
Envelopes 
Envelope #10
(104.9 by 241.3
mm; 4.13 by 9.5
inches) 
Envelope Monarch
(98.5 by 190.5
mm; 3.88 by 7.5
inches) 
HP Greeting Card
Envelope
(111.25 by 152.4...

Media sizeInput trayFront manual
feed slotRear manual
feed slotAuto duplex
(duplex unit)Manual duplex
Envelope C5
(162 by 229 mm;
6.38 by 9.02
inches) 
Envelope C6
(114 by 162 mm;
4.49 by 6.38
inches)  
Envelope Kaku #2
(240 by 332 mm;
9.4 by 13.1 inches) 
Japanese
Envelope Chou #3
(120 by 235 mm;
4.7 by 9.3 inches) 
Japanese
Envelope Chou #4
(90 by 205 mm;
3.5 by 8.1 inches) 
Cards 
Index card
(76.2 by 127 mm;
3 by 5 inches)   
Index card
(101.6 by 152.4
mm; 4 by 6 inches)  
Index card
(127 by 203.2
mm;...

Media sizeInput trayFront manual
feed slotRear manual
feed slotAuto duplex
(duplex unit)Manual duplex
Photo L with tab
(89 by 127 mm;
3.5 by 5 inches)   
Photo
(101.6 by 152.4
mm; 4 by 6 inches)   
Photo with tab
(101.6 by 152.4
mm; 4 by 6 inches)   
Photo with tab
(127 by 177.8
mm; 5 by 7 inches)   
Photo
(203.2 by 254
mm; 8 by 10
inches) 
Photo
(279.4 by 355.6
mm; 11 by 14
inches) 
Photo
(304.8 by 304.8
mm; 12 by 12
inches) 
Photo 10 by 15 cm
(100 by 150 mm;
4 by 6 inches) 
Photo 10 by 15
cm with tab...

Media sizeInput tray and front and
rear manual feed slotsManual duplexAuto duplex (duplex unit)
Plain paper
Thick plain paper 
HP Bright White Paper
HP Premium Paper  
HP Premium Presentation
Paper
HP Photo and Project Paper
Other inkjet papers
Photo papers
NOTEPhoto media supports up to 4800 x 1200 optimized dpi for color printing and 1200 input dpi. This setting
might temporarily use a large amount of hard disk space (400 MB or more) and will result in slower printing.
HP Photo Paper  
Other photo...

Media sizeInput tray and front and
rear manual feed slotsManual duplexAuto duplex (duplex unit)
HP greeting cards 
HP photo greeting cards 
Other greeting cards 
Brochure papers
HP brochure papers
Other brochure papers
Supported media weights and capacities 
TrayTypeWeightCapacity
Input trayPaper60 to 135 g/m2 (16 to 36 lb
bond)Up to 19 mm (0.75 inches)
or up to 150 sheets plain
paper
EnvelopesUp to 15
CardsUp to 30
Transparencies or labelsUp to 30
Front manual feed slotPaper65 to 135 g/m2 (17 to 36 lb...

TrayTypeWeightCapacity
Setting minimum margins
The document margins must match (or exceed) these minimum margin settings in portrait orientation.
MediaLeft and right marginsTop marginBottom margin
A3, A3+, B5, Legal, Super
B, Tabloid5.1 mm (0.2 inch)3.0 mm (0.12 inch)11.7 mm (0.46 inch)
A4, A5, A6, B4, Letter,
Executive, Statement3.3 mm (0.13 inch)3.0 mm (0.12 inch)11.7 mm (0.46 inch)
Cards3.2 mm (0.13 inch)3.0 mm (0.12 inch)11.7 mm (0.46 inch)
Envelopes3.2 mm (0.13 inch)11.7 mm (0.46 inch)11.7 mm (0.46...

Loading media
This section explains how to load plain paper and standard media sizes and types into the input tray.
Following are general guidelines for loading media into the tray:
●If you are printing on thick paper (such as cardstock), you can use the rear manual feed slot. See
Printing with the front or rear manual feed slot.
●If you are printing cards or envelopes, see 
Printing on special and custom-size media.
●If you are printing one or just a few envelopes or sheets of paper, you can use the...

5.Press the button on top of the paper guide and slide the guide to the right until it stops at the
edge of the media.
6.Press the input tray lock and retract the tray until it stops at the edge of the media.
NOTEWhen 215.9 x 279.4 mm (8.5 x 11 inch) paper is loaded in the input tray, the tray
extension will close to the edge of the paper and leave a slight gap between the extension
and the tray. The tray extends further to accommodate larger-sized media.
7.Lower the output tray.
8.Extend the output tray...