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IBM Type 8720, Type 8730 manual Service replaceable units

Models: Type 8730 Type 8720

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Docking board/blower housing assembly - (dc Type 8720 and ac Type 8730)

Complete the following steps to replace the docking board/blower housing 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 (dc) systems, remove the dc terminal covers and power connections to each of the dc terminals. For Type 8730 (ac) systems, remove each power cord from the input power connections on the rear of the BladeCenter T unit.

3.Remove the power modules from the bays at the front of the unit on the same side of the docking board/blower housing assembly that you are replacing.

Note: The power modules dock into the docking board on the assembly and must be removed before you can remove the assembly.

4.At the rear of the unit, remove the two blowers from the docking board/blower housing assembly that you are replacing (see “Removing and installing blower modules” on page 54).

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

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

7.Remove all I/O switches and switch fillers from the rear of the unit. See “Removing and installing I/O modules” on page 60.

8.For Type 8720, remove the dc rear panel from the rear of the unit (see “DC Rear Panel” on page 70). For Type 8730, remove the ac rear panel from the rear of the unit (see “AC rear panel” on page 69).

9.Remove the two upper flex circuit assemblies (see “Upper flex circuit assembly” on page 71) and the two lower flex circuit assemblies (see “Lower flex circuit assembly” on page 72).

10.Loosen the two captive fasteners located above and below the power inlet receptacles.

11.Loosen the captive fastener that attaches the old docking board/blower housing assembly to the system chassis.

Chapter 5. Service replaceable units 75

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IBM Type 8720, Type 8730 manual Service replaceable units
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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.