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Part 1: Safety and Precautions
3.4 Precautions for Disassembly/Assembly
3.4.1 Disassembly prohibited parts
Never loosen the red screws on the printer's mechanical sections.
Two red screws are used for fixing the adjustment plate. This plate determines the
distance between the nozzles on the BJ cartridge and the platen. This distance is
called the "head gap." Ten red screws are used for fixing the carriage rail and chassis.
These screws are adjusted to their optimum positions before the printer is shipped
from the factory, and cannot be re-adjusted.
Also, do not disassemble BJ cartridges and ink tanks.
Red Screws
3.4.2 Precautions for disassembly/assembly
Before you start disassembly/assembly, be sure to read "Part 5: 4. Disassembly/Assembly"
(page 5-6) for details on parts that require special caution during disassembly/assembly.
The printer comprises combining many plastic parts. When disassembling the
printer, be careful not to break or bend these plastic hooks.
Carriage Rail
Red Screws
Red Screw
Figure 1-18 Disassembly Prohibited Parts
Do not disassemble parts on the printer down to components smaller than
those indicated in the exploded views in the Parts Catalog. Doing so might
impair their original functions after they are re-assembled.
Figure 1-19 How to Release Plastic Hooks
Some of the plastic parts contain glass fibers for improving the strength of
the part. However, since their viscosity is low, plastic hooks break easily.
Do not apply excessive force when releasing a hook.
Ink Tanks
BJ Cartridge
Red Screws
Never apply excessive force
when releasing a hook.
Hook
1-16
BJC-8500
Ink Tanks
Red Screw
Red Screws
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