9.Position the new dc rear panel so that it aligns with the dc power terminals on the system. Make sure that the dc rear panel is well seated on the system.

10.Using a screwdriver, tighten the three captive fasteners on the new dc rear panel.

Note: Torque the screws to 8 inch-pounds.

11.If you have no other replacement procedures to perform at the rear of the system, re-install the LAN module (see “Installing the LAN module” on page

59)and the KVM module (see “Installing the KVM module” on page 57).

12.Connect the power cable connectors to the dc terminals of the BladeCenter T unit (see page19).

13.Reinstall dc terminal covers.

14.Start up the system (see “Starting the BladeCenter T unit” on page 19).

Upper flex circuit assembly

Complete the following steps to replace the upper flex circuit assembly.

Note:

vRead “Installation guidelines” on page 37.

vRead the safety notices at ″Safety information″ on page 113.

vRead “Handling static-sensitive devices” on page 40.

1.Shut down the system and remove power from the system (see “Shutting down the BladeCenter T unit” on page 21).

2.For Type 8720 systems, remove the dc terminal covers and power connections to each of the DC terminals. For Type 8730 systems, remove each power cord from the input power connections on the rear of the BladeCenter T unit.

3.Remove the KVM module from the rear of the system (see “Removing the KVM module” on page 57).

4.Remove the LAN module from the rear of the system (see “Removing the LAN module” on page 59).

5.Remove the I/O switch that is above the upper flex circuit assembly that you are removing.

6.Using a screwdriver, fully loosen the two captive fasteners on the old upper flex circuit assembly.

Chapter 5. Service replaceable units 71

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IBM Type 8720, Type 8730 manual Upper flex circuit assembly
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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.
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