Power modules

AC power module

 

DC power module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

AC in LED

DC in LED

 

DC out LED

DC out LED

Error LED

Error LED

Power module LEDs: Each power module has three LEDs to indicate the status of the power module.

vAC (or DC) in: When continuously lit, this green LED indicates that the input power source is working. If the LED is not lit, it indicates that the input power source is not present or is incorrect.

vDC out: When continuously lit, this green LED indicates that the output power is present. If the LED is not lit, it indicates that the output power is not present.

v! (Error): When continuously lit, this amber LED indicates that there is a error condition within the power module.

Table 3. Power module LEDs

 

 

! (Error)

 

DC IN or AC IN

DC OUT

(amber)

Description and action

 

 

 

 

On

On

Off

The power module is on and operating

 

 

 

correctly.

 

 

 

 

On

Off

Off or On*

There is an output power problem. A system

 

 

 

error has shut down the power module.

 

 

 

Actions: Determine the cause of the shutdown

 

 

 

using the diagnostics and replace the failed

 

 

 

component. When the fault has been cleared,

 

 

 

reset the power module in one of the following

 

 

 

ways:

 

 

 

v Issue a power-module reset through the

 

 

 

management module.

 

 

 

v Remove the power module from the unit for

 

 

 

at least 10 seconds.

 

 

 

If the problem remains, have the unit serviced.

 

 

 

*Error LED will operate only if a redundant

 

 

 

power supply is installed.

 

 

 

 

Chapter 1. General information 13

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IBM Type 8720, Type 8730 manual Power modules, Error DC in or AC, Amber Description and action

Type 8730, Type 8720 specifications

The IBM Type 8720 and Type 8730, part of IBM's extensive line of printers, stand out as reliable and technologically advanced devices designed for both small and large-scale industries. These printers, which were introduced in the early 1990s, catered to the evolving needs of businesses by delivering high-quality output combined with versatility and efficiency.

One of the main features of the IBM Type 8720 is its innovative line printer technology. Unlike traditional printers that utilized a single print head, the 8720 employs a unique printing mechanism that utilizes multiple print wires, ensuring faster print speeds and more precise character formations. This multi-wire technology enables the printer to achieve a print speed of up to 1,500 lines per minute, making it ideal for high-volume printing environments.

The IBM Type 8730, on the other hand, builds upon the foundation set by the 8720 by introducing more advanced features aimed at enhancing user experience. Among its key characteristics is its advanced processing capability, which allows for more complex document handling and high-quality graphics outputs. The 8730's capability to support a range of media types, including labels, envelopes, and fanfold paper, further enhances its versatility, enabling businesses to print various documents without needing multiple machines.

Both printers are designed with user-friendly interfaces that simplify operations and maintenance. Their modular design allows for easy upgrades, ensuring that companies can keep pace with changing printing demands and technological advancements. Additionally, their robust build quality guarantees long-lasting performance even in demanding environments.

In terms of connectivity, the IBM Type 8720 and 8730 support a variety of communication protocols, including parallel and serial interfaces, which facilitate easy integration into existing network environments. This connectivity ensures that businesses can seamlessly connect the printers to their mainframes or personal computers, streamlining the printing process.

Overall, the IBM Type 8720 and Type 8730 are exemplary allies for businesses seeking efficient, high-speed printing solutions. With their advanced technologies, extensive features, and reliable performance, these printers have maintained a loyal following and continue to be relevant in the realms of business printing, showcasing IBM's commitment to innovation and quality in the field of printing technology.