Ricoh DD 5450, Field Service Manual, Page: 4 / 403

2
If the instructions accompanying this symbol are ignored and the
machine is operated incorrectly, death or serious injury is likely to
result.
If the instructions accompanying this symbol are ignored and the
machine is operated incorrectly, death or serious injury, or else material
damage, is likely to result.
A " " symbol tells you that a certain action is forbidden. Precisely what
is forbidden is indicated by a picture inside the symbol (in the example
here, the picture means that disassembly is forbidden), or in writing at
the side of the symbol.
A "
●
" symbol means that a certain action is forbidden and/or that
a specific instruction must be followed. The specific instruction is
indicated by a picture inside the symbol (in the example here, the
instruction is "Remove the power plug from the socket").
● This manual contains the following information: structure and function of major parts,
disassembly and reassembly procedures, specifications, and procedures for adjustment,
maintenance, inspection and corrective action. This information is current as of April
2014, and applies basically to the model DD5450/5440. From time to time, parts are
changed to improve quality, performance or safety.
Note therefore that in some cases, certain parts or machine structure aspects described
in the text or illustrations of this manual may not be precisely the same as the product
being serviced.
● Safety instructions marked with a " " (WARNINGS and CAUTIONS) are very important
for safety and must be observed.
■ Using the service manual
● Safety-related instructions
● Service work-related instructions
WARNING:
CAUTION:
Examples of pictorial symbols
Safety instructions
Draws attention to important information. If this information is ignored and
the machine is operated or serviced incorrectly, the machine's
performance could drop, or it could break down.
Draws attention to information that is useful for operation or maintenance
of the machine, and to information about its performance, etc.
IMPORTANT
REFERENCE