5525B/31/32 Line Matrix Printer User's Manual
Table Of Contents
- 1 Introduction
- 2 Setting Up the Printer
- 3 Operating the Printer
- 4 The Configuration Menus
- Configuration Overview
- CONFIG. CONTROL
- ACTIVE EMULATION
- EMULATION
- PCL-II Emulation
- LinePrinter Plus Emulations
- Optional Emulations
- PCL-II Emulation
- LinePrinter Plus Emulation
- P-Series Emulation
- Proprinter XL Emulation
- Epson FX Emulation
- IGP/PGL Submenu
- Features
- Configuring the Emulation with the Control Panel
- Define CR Code (Carriage Return)
- Define LF Code (Line Feed)
- Autowrap
- Select SFCC
- PI Slew Range
- CR Edit
- Select Font
- Select LPI
- Auto Uppercase
- Skip Command Prefix
- Power On IGP/PGL
- Extended Execute Copy
- UPC Descenders
- Compressed CPI
- Ignore Character
- IGP100 Compatbl.
- Optimized Ratio
- IGP/VGL Emulation
- MAINT / MISC
- HOST INTERFACE
- ETHERNET PARAMETERS
- PRINTER CONTROL
- DIAGNOSTICS
- RIBBONMINDER
- 5 Interfaces
- Overview
- Dataproducts Long Line Interface
- IEEE 1284 Parallel Interface
- RS-232 and RS-422 Serial Interfaces
- Host System Configuration
- Internal Ethernet Adapter Configuration
- Configuring the Internal Ethernet Adapter for TCP/IP
- Host Software
- Compiling Host Software
- Computer-aided Configuration with ezsetup or npconfig
- Configuration Through the Network with ARP
- Configuration Through the Network with RARP
- Configuration Through the Network with BOOTP
- Restoring Factory Defaults
- Host Configuration
- Direct Printing Without Spooler
- Printing Via the Spooler
- Custom Interface Scripts
- BSD UNIX
- System V UNIX
- npd Pseudo-device Interface
- Other TCP/IP Methods
- Configuring The Internal Ethernet Adapter For Novell
- Configuring the Internal Ethernet Adapter for Windows
- 6 Troubleshooting
- A Printer Specifications
- B Downloading Firmware
- C ASCII Character Set
- D Communication and Trademark Information

Chapter 5 IEEE 1284 Parallel Interface
138
Host Logic High—Driven by the host. When set to high, the host
indicates all of its signals are in a valid state. When set to low, the host
indicates its power is off or its signals are in an invalid state.
nInit —Resets init interface from the host.
Terminating Resistor Configurations
The factory equips the printer with several resistors that are used for
parallel interface configurations and are suitable for most applications.
These 470 ohm pull-up and 1K ohm pull-down terminating resistors are
located at RP1 and RP2, shown in Figure 13.
If the values of these terminating resistors are not compatible with the
particular interface driver requirements of your host computer, you may
need to install resistors with different pull-up and pull-down values.
Figure 13. Resistor Locations
RP1
Default: 470 ohm
Alt 1: 220 ohm
Alt 2: 1K ohm
RP2
Default: 1K ohm
Alt 1: 330 ohm
Alt 2: none