HP 2420 - Manual (Page 234)

If your environment does not support bidirectional communication, the Update Now setting is
unavailable, so you must manually configure the options on this tab.
Tray 3
This control specifies whether you have Tray 3, an additional 500-sheet media tray, installed on your
product. The default setting is Not Installed. In order to use Tray 3, you must change this setting to
Installed.
Duplex Unit (for 2-Sided Printing)
The HP LaserJet 2420d, 2420dn, and 2430dtn printers come with a duplex unit installed. This setting
is enabled (Installed) by default for these three models.
NOTE The HP LaserJet 2410, 2420, and 2430 printers support smart duplexing. The
product uses the smart duplexing feature to detect information on both sides of the print job
pages and only runs the pages through the duplexing unit if printable information appears on
the second side of the page.
Allow Manual Duplexing
Some printer models do not support automatic 2-sided printing. However, you can print on both sides
of a page using manual 2-sided printing when this option is enabled. This option is enabled by default.
Printer Memory
This option matches the setting to the amount of memory that is installed in the product. The driver
generates ranges of memory that can be selected, up to the maximum that the product can accept.
The driver can use this information to manage how the print driver uses the product memory.
When a minimum total memory of 80 MB is installed, the Job Storage option and the Mopier Mode
are enabled in the print driver. The Job Storage option allows you to store print jobs, and then print
them later from the control panel. The multiple-original print (mopy) function is an HP-designed
feature that produces multiple, collated copies from a single print job.
Job Storage
If your HP LaserJet 2410, 2420, and 2430 printer has a minimum of 80 MB of memory, limited job-
storage options are available. When job storage is enabled, the product can store print jobs so that
you can gain access to those print jobs later at the control panel.
Mopier Mode
The multiple-original print (mopy) function is an HP-designed feature that produces multiple, collated
copies from a single print job. Multiple-original printing (mopying) increases performance and
reduces network traffic by transmitting the job to the product once, and then storing it in the product
hard disk. The remainder of the copies are printed at the fastest speed. All documents that are
printed in mopier mode can be created, controlled, managed, and finished from the computer, which
eliminates the extra step of using a photocopier.
The HP LaserJet 2410, 2420, and 2430 printer supports the transmit-once mopying feature when the
product has a minimum total memory of 80 MB, and the Mopier Mode: setting on the Device
Settings tab is Enabled.
When you use the HP PCL 6, PCL 5e, or PS emulation unidriver, mopying is performed in one of two
ways: either through the software or through the product hardware. When the mopier is enabled,
218 4 HP PCL 6, HP PCL 5e, and HP PS 3 emulation unidrivers for Windows
HP unidrivers