Emulation Mode Switch Functions; Emulation Switch By; Intelligent Emulation Switch; Figure 1-12. Emulation Switch By Spl - Epson C11C605001 - DFX 9000 B/W Dot-matrix Printer Service Manual

Service Manual
Mode Switch Functions
1.4.6 Emulation
This section describes the emulation mode switch function.
1.4.6.1 Emulation Switch by SPL
The two types of emulation switch functions described below are available on this printer.
Together they are referred to as SPL (Shared Printer Language).
This is EPSON's origiml language system. It is able to skip among various destinations, as shown
in Figure 1-12.
This is HP's original language, which is available with the LaserJet 4 printer.
It is able to skip among various destinations, as shown in Figure 1-12. The precise specifications for
this language are based on the HP LaserJet 4.
figure below shows three types of mode switching.
The
Neither EJL nor PJL switches the mode directly. They first exit the current mode and return to EJL
or PJL. Then they enter another mode.
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1.4.6.2 Intelligent Emulation Switch

The Intelligent Emulation Switch (IES) automatically switches the emulation switch mode,
depending on the data sent from the host computer through one of the interface channels. It is able
to switch between EPSON Script and other modes as shown in the figure below.

Figure 1-13. Intelligent Emulation Switch

Rev. A
LJ4

Figure 1-12. Emulation Switch by SPL

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General Description
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ESCP2
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