Oki IP-6620, Maintenance Manual

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