Troubleshooting guide

Preface
vii
ENGLISH
Target Printer Detection
The box is capable of detecting which printer is attached to the parallel
port. This allows addressing of the specific printer features.
The following printers are supported:
DECLaser 3500, DECLaser 5100, LN17.
Operating Modes
The convert box can operate in one of the following main modes:
• Data Conversion mode (DEC PPL3 to PCL 5)
• Bi-directional Communications Transparent mode
• Autosensing mode (data conversion or PostScript transmission)
• Hex Dump mode
The operating mode is selected by the dipswitch settings or by software
configuration.
Note: See table
“
Convert Box and Printer Settings
”
in Chapter 1.
The Data Conversion mode
This is the Convert Box primary operating mode. The Convert Box
processes DEC PPL3 data from the serial input port and converts the
data into PCL 5 protocol to the parallel output port. In this mode, the
Convert Box emulates the following Digital printers: the DECLaser's
1100, 2100/2200, 3200, and the LN03 Plus.
This mode includes a secondary mode, called LN03 Plus, which covers
a reduced range of DEC PPL3 commands and in which the Convert
Box emulates an LN03 Plus printer only.
The Bi-directional Communications Transparent mode
In this mode, the Convert Box operates as a two way serial to parallel
interface with no data conversion. When bi-directional
communications must apply between the host and the printer for
reporting, job control or monitoring, the printer connected to the
parallel port must be configured so that bi-directional communication