Oki B 4100 Maintenance Manual page 495

A3.13 TQSB (Second tray) Circuit Diagram: option
1. Block diagrm
This board is installed as the optional board for OKIFAX 5000 series.
Figure A3.13.1 shows a block diagram of the second tray (option).
2. Function
Second tray consists of the following functions:
• Paper capacity
• Paper size
• Paper-size selection
• Cassette/no-cassette selection
• Paper/no-paper selection
• Paper route open to facsimile transceiver unit : Automatic decision
Control method:
When second tray is installed with the facsimile transceiver unit, the tray is connected to the
facsimile transceiver unit by a connecting cable. The tray is controlled by the command from
CPU of PU (printer unit) section.
M17
IC2
CN14 CN1
OPSD-N
3
OPSCLK-N
2
IOGA
OPSDP-N
4
5
0 VP
6
+30 V
8
+5 V
7
SGND
Figure A3.13.1 Block Diagram of 2nd Tray (for OKIFAX 5000 Series)
40055101TH Rev.4
2nd tray (option)
X'tal
3
Open collector
2
Filter
MOS CPU
4
Open collector
0 VP
+30 V
+5 V
SGND
: 500 sheets
: A4, Letter, Legal
: Automatic
: Automatic
: Automatic
Transistor
MOTOR
1
2
Motor drive
3
4
Pull-up resistor
SIZE
Motor
M
Inlet sensor
Paper end sensor
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