Oki IP-6620 Maintenance Manual page 550

Name
Ink cover sensor Photo interrupter
Suction fan lock Internal fan
detection 1 to 4 element
FFC connection By checking
detection GND connection
CN9 to CN12 on HCB1M
board
ACT3 board By checking
detection GND connection
on ACT3 board
TRC-MW board By checking
detection GND connection
on TRC-MW
board
Zero cross Photocoupler on
detection TRC-MW board
Operation panel Tact switch on
power switch MCP4M (MCP5)
board
Media discharge Reflective photo
sensor sensor
Media feed Reflective photo
sensor sensor
PCB-ASSY-ACT3 Reflective photo
AD converter sensor
Linear encoder Reads linear
scale with
optical sensor
IONIZER Checks high
voltage applied
to the ion
generating
device
LCIS ink weight
Potentiometer
sensor
Type Reading component
PCB-ASSY-ACT3
CPLD-VSU
PCB-ASSY-ACT3
CPLD-VSU
PCB-ASSY-IPB5-100
FPGA-BTC
PCB-ASSY-IPB5-100
FPGA-BTC
PCB-ASSY-IPB5-100
FPGA-BTC
PCB-ASSY-IPB5-100
FPGA-BTC
PCB-ASSY-IPB5-100
FPGA-BTC
PCB-ASSY-ACT3
AD converter
PCB-ASSY-ACT3
AD converter
PCB-ASSY-ACT3
AD converter
PCB-ASSY-HCB1M
FPGA-PTG
PCB-ASSY-IPB5-100
FPGA-BTC
PCB-ASSY-HCB1
AD converter
PCB-ASSY-ACT3
OKI Data Infotech Corporation CONFIDENTIAL
Chapter 8 Operation Mechanism
0 1
indication indication
Closed Open
Rotating Locked
Yes No
Yes No
Yes No
At zero Not at zero
cross cross
OFF ON
Low High
voltage: voltage:
No Reflective
reflective object
object detected
Low High
voltage: voltage:
No Reflective
reflective object
object detected
Low High
voltage: voltage:
No Reflective
reflective object
object detected
Readout
Remarks
number when
disconnected
1 Low level
with light
blocked
1
1
1
1
1
1
Approx.
5 V
Approx.
5 V
Approx.
5 V
1 Two
outputs to
A phase
and B
phase
0
Normally
1.5 V to 3.5
V
Normally
0
1.8 V to 3.3
V
8-29