-
When disassembling, follow the listed sequence. Failure to follow the correct sequence
may result in damaged parts.
-
Since screws, collars and other small parts are easily lost, they should be temporarily
attached to the original positions.
-
When handling circuit boards use extreme care. Integrated circuits (microprocessors,
ROM, and RAM) can be destroyed by static electricity.
-
Do not place printed circuit boards directly on conductive surfaces.
-
Follow the recommended procedures when replacing assemblies and units.
-
Perform the Printhead Gap Adjustment
(Refer to Section 3.3)
when the following occur.
-
Print quality is darker on either side of the document.
-
The following parts are replaced.
-
Space Motor Assembly
(Refer to Section 3.2.15 (
)
-
Carriage Shaft
(Refer to Section 3.2.16 (
)
-
Guide Rail
(Refer to Section 3.2.18 (
)
-
Platen Assembly
(Refer to Section 3.2.19 (
)
Serial Number Identification & (A-D) Revision Levels
A
Rev A units are original production units. An interconnect module connects the power supply board
to the main control board.
B
Rev B units are retrofitted to include a modified interconnect module, which prevents corrosion.
C
Rev C units have a cable harness connection between the power supply board and the main control
board. The cable harness replaces the interconnect module.
D
Rev D units have no power supply board. The circuitry for the power supply board has been
incorporated on the main control board.
Please Note the following:
The Rev C main control board (LXMC) and power supply board (SUII) are downward compatible
with Rev A and B units.
The Rev A and Rev B main control board (LXMC) and power supply board (PAII) cannot be used
in Rev C units.
Rev D units do
NOT
use Rev A, Rev B, or Rev C main control boards, transformers, operator panels,
upper covers, and lower covers. Rev D units have a unique main control board (LXMR), no power supply
board, a 50 volt transformer, and a unique operator panel (LXON).
