IBM 6400 Series, Maintenance Information Manual

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Printer Evolution
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complexity of Hanzi characters, the highest rated speed for these models is
585 lpm.
Printer Evolution
IBM 6400-050, -P50, -010, -P10, and -015 printers use a redesigned shuttle
frame assembly, hammer bank, and ribbon guides. These models use the
CMX 040 controller board, which has a 40 MHz clock speed on the Data
Controller unit. These models use standard hammer springs, which have 16
MIL (0.016 inch) tips.
IBM 6400-C05 and -C5P printers use a shuttle frame assembly, hammer
spring assemblies, and software specially designed to print complex Hanzi
characters. The hammer springs have 10.5 MIL (0.0105 inch) tips and are
unique to these printers. The 6400-C05 and -C5P printers also use the CMX
040 controller board, which has a 40 MHz clock speed on the Data Controller
unit.
Except for the CMX 040 controller board and ribbon guides, which are
backwards compatible with all 6400 printers, the redesigned components of
these newer models are not compatible with earlier models.
When replacing components, be careful to order the correct spares for the
model you are servicing. The next section explains how to identify an IBM
6400 printer.
How To Identify The Printer
The model number of the printer indicates the printer family, speed, and type
of enclosure. (See Figure 1.)
Figure 1. How to Interpret Model Numbers
IBM 6400 Printer Family
* Uses hammer springs with 10.5 MIL
(0.0105 inch) tips. Standard hammer
tips are 16 MIL (0.016 inch).
6400-04P
Enclosure Code:
P = Pedestal Model
No Code = Cabinet Model
Maximum Speed Rating:
004 = 475 lpm
005 = 500 lpm (25 MHz controller)
050 = 500 lpm (40 MHz controller)
C05 = 585 lpm Hanzi*
008 = 800 lpm
009 = 900 lpm
010 = 1000 lpm
012 = 1200 lpm
014 = 1400 lpm
015 = 1500 lpm