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Introduction to host-based printing
The HP LaserJet M1120 MFP is a host-based device. Host-based printing differs from PCL printing by
computing the print job on the host computer rather than computing it in the device formatter. The
following illustration shows how the HP LaserJet M1120 MFP Series printing-system software works.
Figure 4-1 HP LaserJet M1120 MFP host-based driver overview
As a host-based printing system, the HP LaserJet M1120 MFP print driver uses MS Windows to convert
the graphics device interface (GDI) or device driver interface (DDI) calls from software programs into
JBIG (standard-compression) compressed pages. These pages are sent in “chunks” through the driver
to the device formatter.
Host-based driver
features for MS Windows
The HP LaserJet M1120 MFP print driver also receives status messages from the formatter firmware.
These messages are passed to the Status Application, which displays them.
The HP LaserJet M1120 MFP formatter has 2 MB of read-only memory (ROM) and 32 MB of random
access memory (RAM). Both the firmware and the compressed page must fit into the 32 MB of RAM.
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Chapter 4 Host-based driver features for MS Windows
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