496 D
Toner collection bottle error
The toner collection bottle set switch
remains off when the front door is
closed.
• No toner collection bottle set
• Poor connection of the switch connector
497 D
Toner collection motor error
The toner collection motor connector
set signal remains off for 1 s.
• Toner pump motor defective
• Motor connector loose, disconnected
SC500: Feed, Transport, Duplexing, and Fusing Systems
501 B
Tray 1 lift malfunction
The lift sensor is not activated within 10
seconds after the tray lift motor starts
lifting the bottom plate.
When the tray lowers, the tray lift sen-
sor does not go off within 1.5 sec.
Tray overload detected when the tray
is set.
The lower limit sensor of the LCT does
not detect the lower limit within 10 sec.
• Tray lift motor defective, disconnected
• Paper or other obstacle trapped between
tray and motor
• Pick-up solenoid disconnected, blocked
by an obstacle
• Too much paper loaded in tray
Note
• At first, the machine displays a message
asking the operator to reset the tray.
• This SC will not display until the operator
has pulled the tray out and pushed it in 3
times.
• If the operator turns the machine off/on
before the 3rd opening and closing of the
tray, the 3-count is reset.
502 B
Tray 2 lift malfunction
The lift sensor is not activated within 10
seconds after the tray lift motor starts
lifting the bottom plate.
When the tray lowers, the tray lift sen-
sor does not go off within 1.5 sec.
• Tray lift motor defective or disconnected
• Paper or other obstacle trapped between
tray and motor
• Pick-up solenoid disconnected or blocked
by an obstacle
4. Troubleshooting
256
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