Toshiba DP120F, Service Manual

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DP120F/DP125F Circuit Description 7-72 March 2000 © TOSHIBA TEC
• I/OP-2 GA Signal Table (2/4)
No. Signal Name Type Functions
27, 28 DRBIS1, 2 O Drum bias voltage set signal
Select a transfer constant-voltage to the drum.
DRBS1
DRBS2 Output
HIGH HIGH -200V
LOW - 0V
HIGH LOW -100V
29 DRBIS3 - Unused
30 ORESX O Optional recording paper tray reset signal (active-
low)
Resets the optional recording paper tray.
31 APF O Solenoid drive signal (H: Paper feed)
Drives the paper pickup solenoid to feed the record-
ing paper.
32 CMD2 O Optional recording paper tray select signal (H: Lower,
L: Mid)
Switches the optional recording paper tray to be
driven.
33 CMD1 O Optional paper pickup solenoid drive signal (H: Pa-
per feed)
Drives the optional paper pickup solenoid of to feed
the recording paper.
35-37 PS2-0 I Paper size detect signal (L: ON)
Detects the size of recording paper.
PS0 PS1 PS2 Recording paper size
LOW HIGH HIGH LT
HIGH LOW HIGH A4
HIGH HIGH LOW LG
HIGH HIGH HIGH No recording paper tray
38 PE I Paper empty detect signal (L: Paper present)
Detects the presence or absence of recording pa-
per.
39 FDS1 I Paper feed sensor detect signal (L: In transport)
Detect the transport status of recording paper.
40 FDS2 I Paper exit sensor detect signal (L: In transport)
Detect the transport status of recording paper.
43 LEDON O LED array lighting signal (H: ON)
Lights the LED array for reading in the CIS.
I: Input O: Output I/O: Bidirectional