Epson AcuLaser C8500 Service Manual page 303

EPSON AcuLaser C8500
Table 4-10. Digital Output Test Device Code
Digital Output Test [DIAGSTART : [90 02 XX] , DIAGSTOP : [91 02 XX] ]
Code
When status data is
Name (Hex)
VDENB 44 ROS ASSY
Set MCU PWB inside
signal (LDENB) to High.
THSEL 46 MCU PWB
Set MCU PWB inside
signal (sermister
breakage detection
signal) to Low.
HR_LAMP 47 H/R HEATER, P/R
HEATER
_SSR
Set HEATER ON signal
to Low.
CNTR_RST 4C MCU PWB
Set MCU PWB inside
signal (Watch dog timer
cancel signal) to Low.
PH2_MOT 52 Not used.
_SPEED
PH_MOT 53 FUSER MOTOR ASSY,
P/H MOTOR ASSY
Set FUSER-P/H
MOTOR ON signal to
Low.
Chapter 4 Diagnostics
Function Item
[High] Check Method
-
-
Check the H/R
HEATER and P/R
HEATER light up.
[Turn it off
automatically in
0.12msec rest.]
-
-
<WARNING>
<CAUTION>
Check the rotation of
two motors.
(It rotates in standard
speed unless a code
[57], [62] are
executed.)
Table 4-10. Digital Output Test Device Code
Digital Output Test [DIAGSTART : [90 02 XX] , DIAGSTOP : [91 02 XX] ]
Code
When status data is
Name (Hex)
MAIN_MOT 54 PROCEASS DRIVE
ASSY
Set PROCESS MOTOR
ON signal to Low.
DISPENCE 56 DISPNESE CLUTCH
ASSY
_MOT
Set DISPNESE
CLUTCH ON signal to
Low.
PH_MOT 57 FUSER MOTOR ASSY,
P/H MOTOR ASSY
_SPEED0
Set FUSER-P/H
MOTOR SPEED0
signal to Low.
Revision C
Function Item
[High] Check Method
<WARNING>
<CAUTION>
Check the rotation of
the motor.
(It rotates in standard
speed unless
DIAGSTOP is
executed with the
code [00], [06].)
<CAUTION>
Check by operational
sound that the clutch is
operating.
<WARNING>
<CAUTION>
Check by the change
in operational sound or
visually that the
rotation of two motors
goes to medium speed
(one half speed).
(During executing with
code [53], executing
this code changes the
FUSER MOTOR
ASSY and the P/H
MOTOR ASSY to one
half speed.)
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