Canon LBP-1000 Service Manual page 21

be sure to power OFF both the printer and host computer, and to unplug the power cord
from the outlet. If the connector is plugged/unplugged while the printer is ON, it may break
the printer down.
c. When installing and uninstalling the Adobe PostScript Module A-32, flash ROM, or
Expansion RAM DIMM (all of these are options), be sure to switch OFF the printer.
d. A maximum length of three meters of shielded cable must be used for connecting the print-
er and host computer.
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