Epson AcuLaser C8500 Service Manual page 296

EPSON AcuLaser C8500
Table 4-8. Digital Input Test Device Code
Digital Input Test [DIAGSTART : [90 02 XX] , DIAGSTOP : [91 02 XX] ]
Code
When status data is
Name (Hex)
OPT_FEEDER1 A4 NO PAPER SENSOR
(Cassette 2)
_EMPTY_SNR
[2]TRAY PAPER
SENSE Signal : High
OPT_FEEDER1 A5 NUDGER SENSOR
(Cassette 2)
_LEVEL_UP
[2]TRAY LEVEL
_SNR
SENSE Signal : High
OPT_FEEDER1 A6 FEED OUT SENSOR
(Cassette 2)
_PASS_SNR
[2]FEED OUT
PAPER SENSE
Signal : High
OPT_FEEDER2 B0 LOW PAPER
SENSOR-2T
_NEAR_END
SENSOR
_SW
(Cassette 3)
[3]LOW PAPER
SENSE Signal : High
OPT_FEEDER2 B4 NO PAPER SENSOR
(Cassette 3)
_EMPTY_SNR
[3]TRAY PAPER
SENSE Signal : High
OPT_FEEDER2 B5 NUDGER SENSOR
(Cassette 3)
_LEVEL_UP_SNR
[3]TRAY LEVEL
SENSE Signal : High
Chapter 4 Diagnostics
Function Item
[High] Check Method
Check by using the NO
PAPER SENSOR
ACTUATOR to sw itch
betw een light passed and light
blocked states at the Sensor.
Check by using the NUD/
FEED BRACKET ASSY
to switch between light passed
and light blocked states at the
Sensor.
Check by using paper to
switch between light
present and light absent
states at the Sensor.
Check by increasing and
decreasing the amount
of paper in Cassette 3 to
switch between detected
and not detected states
at the Sensor.
Check by using the NO
PAPER SENSOR
ACTUATOR to sw itch
betw een light passed and light
blocked states at the Sensor.
Check by using the NUD/
FEED BRACKET ASSY
to switch between light passed
and light blocked states at the
Sensor.
Table 4-8. Digital Input Test Device Code
Digital Input Test [DIAGSTART : [90 02 XX] , DIAGSTOP : [91 02 XX] ]
Code
When status data is
Name (Hex)
OPT_FEEDER2 B6 FEED OUT SENSOR
(Cassette 3)
_PASS_SNR
[3]FEED OUT
PAPER SENSE
Signal : High
OPT_FEEDER C0 FEEDER R/H
COVER SWITCH F
_DOOR_SW
or FEEDER R/H
COVER SWITCH R
FEEDER R/H
COVER SWITCH F
ON Signal : High
or FEEDER R/H
COVER SWITCH R
ON Signal : High
OPT_FEEDER C1 FEEDER R/H
COVER SWITCH F
_DOOR2_SW
or FEEDER R/H
COVER SWITCH R
FEEDER R/H
COVER SWITCH F
ON Signal : High
or FEEDER R/H
COVER SWITCH R
ON Signal : High
OPT_FEEDER C2 24V to Option Feeder
_24V
24VDC(between
LVPS and Option
Feeder) : High
Revision C
Function Item
[High] Check Method
Check by using paper to
switch between light
present and light absent
states at the Sensor.
Checking by opening
and closing the FEEDER
CHUTE ASSY.
Checking by opening
and closing the FEEDER
CHUTE ASSY.
Checking by opening
and closing the FRONT
COVER ASSY.
(Even MSI/REGI HIGH
ASSY or FUSER ASSY
is acceptable.)
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