HP OfficeJet Pro K550 User Manual

3 Using the printer
This section provides information on media usage for the printer, changing print settings, and
performing basic printing tasks.
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Selecting print media
●
Loading media
●
Configuring trays
●
Changing print settings
●
Canceling a print job
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Printing on both sides (duplexing)
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Printing on special and custom-sized media
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Selecting print media
The printer is designed to work well with most types of office paper. It is best to test a variety of print
media types before buying large quantities. Use HP media for optimum print quality. Visit HP website
at 
www.hp.com for details on HP media.
Tips for selecting and using print media
For the best results, observe the following guidelines.
●Always use media that conforms to the printer specifications. See 
Understanding specifications
for supported media.
●Load only one type of...

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 may cause smearing.
Custom-sized media
●Use only custom-sized media supported by the printer.
●If your application supports custom-sized media, set the media size in the...

Media sizeTray 1Tray 2Duplex unit
A2 Envelope (111 by 146 mm; 4.37 by 5.75 inches)  
DL Envelope (110 by 220 mm; 4.3 by 8.7 inches)  
C5 Envelope (162 by 229 mm; 6.4 by 9 inches)  
C6 Envelope (114 by 162 mm; 4.5 by 6.4 inches)  
Japanese Envelope Chou #3 (120 x 235 mm; 4.7 by 9.3 inches)  
Japanese Envelope Chou #4 (90 x 205 mm; 3.5 by 8.1 inches)  
Cards
Index card* (3 by 5 inches; 76.2 by 127 mm)
  
Index card* (4 by 6 inches; 102 by 152 mm) 
Index card* (5 by 8 inches; 127 by 203 mm) 
A6 card* (4.13...

Understanding supported media types and weights
TrayTypeWeightCapacity
Tray 1Paper60 to 105 g/m2
(16 to 28 lb bond)
Up to 250 sheets of plain paper
(25 mm or 1 inch stacked)
Transparencies Up to 70 sheets
(17 mm or 0.67 inch stacked)
Photo paper280 g/m2
(75 lb bond)
Up to 100 sheets
(17 mm or 0.67 inch stacked)
Labels Up to 100 sheets
(17 mm or 0.67 inch stacked)
Envelopes75 to 90 g/m2
(20 to 24 lb bond envelope)
Up to 30 sheets
(17 mm or 0.67 inch stacked)
CardsUp to 200 g/m2
(110 lb index)
Up to 80...

Media(1) Left margin(2) Right margin(3) Top margin(4) Bottom
margin*
U.S. Letter, U.S. Legal, A4, U.S.
Executive, U.S. Statement, 8.5 x 13
inch, B5, A5, cards, custom-sized
media, photo media3.3 mm (0.13 inch)3.3 mm (0.13 inch)3.3 mm (0.13 inch)3.3 mm (0.13 inch)
Envelopes 16.5 mm (0.65
inch)16.5 mm (0.65
inch)3.3 mm (0.13 inch) 3.3 mm (0.13 inch)
* To achieve this margin setting on a computer running Windows, click the Effects tab in the printer
driver, and select Minimize Margins.
NOTEWhen you are...

Loading media
This section provides instructions for loading media into the printer.
To load tray 1 or tray 2
1.Pull the tray out of the printer by grasping under the front of the tray.
2.For paper longer than 11 inches (279 mm), lift the front cover of the tray (see shaded tray part)
and lower the front of the tray.
3.Insert the paper print-side down along the right of the tray. Make sure the stack of paper aligns
with the right and back edges of the tray, and does not exceed the line marking in the...

5.Gently reinsert the tray into the printer.
CAUTIONIf you have loaded legal-size or longer media, keep the front of the tray
lowered. Damage to the media or printer might result if you raise the front of the tray with
this longer media loaded.
6.Pull out the extension on the output tray.
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Configuring trays
By default, the printer draws media from tray 1. If tray 1 is empty, the printer draws media from tray 2
(if it is installed and loaded with media). You can change this default behavior using the following
features.
●Tray Lock: Use this feature to protect special media such as letterhead or preprinted media from
accidental use. If the printer runs out of paper while printing a document, it will not use paper
from a locked tray to complete the print job.
●Default Tray: Use this feature...

Changing print settings
You can change print settings (such as paper size or type) from an application or the printer driver.
Changes made from an application take precedence over changes made from the printer driver.
However, after the application is closed, the settings return to the defaults configured in the printer
driver.
NOTETo set print settings for all print jobs, make the changes in the printer driver.
For more information about the features of the Windows printer driver, see the online help...