Brother HL-1870N, Service Manual

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CHAPTER 2 INSTALLATION AND BASIC OPERATION
2-44
5.6 Other Control Features
The printer has the following useful features;
5.6.1 Sleep mode
When the printer does not receive data for a certain period of time (timeout), it enters sleep
mode. The default timeout is 5 minutes and it is automatically adjusted to the most suitable
time-out setting depending on the frequency of your printer use (Intelligent Sleep Mode).
While the printer is in sleep mode, the data LED and the LCD back light are off and it is as if
they were turned off, but the printer can still receive data from the computer. Receiving a print
file or document automatically wakes up the printer to start printing. Pressing any switch on
the control panel also wakes up the printer.
NOTE:
•
When the printer goes into sleep mode, the fan will not stop until the printer engine has
cooled down. The fan running time varies depending on the sleep mode timeout because
the fan running conditions are defined as follows;
1) The fan runs for 10 minutes whenever printing finishes.
2) The fan runs while the printer is in ready status.
3) The fan runs for at least 5 minutes after the printer goes into sleep mode.
(EX: If the timeout is 5 minutes, the fan will be running for 5 minutes after the printer goes into
sleep mode.)
•
Sleep mode allows the print engine to cool, so the temperature of the room and how long
the printer has been in sleep mode affects the warm-up time. This warm-up time can take
up to 45 seconds. The LCD back light turns green with the “WARMING UP” message on
the display to indicate that the printer is warming up.
5.6.2 Inspection mode
The printer incorporates various inspection modes. The printer enters into each inspection
mode by panel switch operation.
For details on inspection mode, see
section 9. ‘INSPECTION MODE’ in CHAPTER 6 .