Toshiba DP120F, Service Manual

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DP120F/DP125F Circuit Description 7-64 March 2000 © TOSHIBA TEC
• PTC GA Signal Table (4/7)
No. Signal Name Type Functions
105 LEN O Laser enable signal
Enables the LSU to apply a laser beam.
107 DOOR O Scanner cover open detect signal (H: Open, L:
Closed)
Detects the open or closed state of the scanner cover.
108 SCPE I Bypass tray paper empty detect signal
(H: Paper present)
Detects the presence or absence of paper in the
bypass tray.
109-111 SCPS0-2 I Bypass tray paper size detect 0-2 signals
Detect the size of recording paper in the bypass tray.
SCPS2
SCPS1 SCPS0 Paper
LOW LOW LOW LG
LOW LOW HIGH LT
LOW HIGH LOW A4
HIGH HIGH HIGH Other
112-114 IPRT5-7 - Signal ground
116-119 PM0-3 - Monitor signal
122 POWER O LBP Engine control signal (H: Power ON)
Outputs the power status to the PCL interface.
123 READYX O Engine ready signal (active-low)
Indicates the standby state to the PCL interface.
124 CRDYX O LSU ready signal (L: Ready)
Indicates the LSU ready status to the PCL interface.
125 SCPF O Bypass tray paper pickup solenoid drive signal (H:
Feed)
Drives the paper pickup solenoid of the bypass tray
to feed the recording paper.
126 PSV O PC interface status select signal
(H: Normal, L: Power Save)
Indicates the power save status to the PC interface.
127 PCFWENA O PC interface data bus connection signal
(H: Disconnected, L: Connected)
Controls the connection of the PC interface data bus.
128 ERROR O PCL error signal (L: Error)
Indicates to the PCL that an error has occurred in
the printer engine.
I: Input O: Output I/O: Bidirectional