Epson AcuLaser C8500 Service Manual page 447

EPSON AcuLaser C8500
FIP-2.15 Faulty WASTE TONER SENSOR FIP-2.15 Faulty WASTE TONER SENSOR FIP-2.15 Faulty WASTE TONER SENSOR FIP-2.15 Faulty WASTE TONER SENSOR
Step
*Initial setting
Use of parts of non-EPSON specifications, improper mounting, damage, distortion, dirt, adherence
of foreign matter?
*Main parts to check
1
WASTE TONER SENSOR, WASTE TONER BOX,
TONER BOX HARNESS, MAIN HARNESS ASSY,
MCU PWB
*WASTE TONER SENSOR power supply check
2
Is the voltage between P22-14PIN <=> P22-12PIN 5VDC?
*WASTE TONER detection signal power supply check
3
Is the voltage between P22-13PIN <=> P22-12PIN 5VDC?
*WASTE TONER detection signal check
Is the voltage between P/J22-13PIN <=> P/J22-12PIN as follows?
4
When transmitting (WASTE TONER LOW level),
When blocked (WASTE TONER HIGH level)
*TONER BOX HARNESS continuity check
5
Is there a proper continuity between J88 <=> P116?
*MAIN HARNESS ASSY continuity check
6
Is there a proper continuity between J116 <=> J22?
Troubleshooting
Check
the value is 0VDC.
, the value is 5VDC.
Level 2 FIP (Fault Isolation Procedure
Revision C
Treatment
Yes No
Replace and remount
Go to step 2.
the concerned part(s)
Go to step 3. Go to FIP-2.1
Replace the MCU
Go to step 4.
PWB.
Replace the MCU
Go to step 5.
PWB.
Replace the TONER
Go to step 6.
BOX HARNESS.
Replace the WASTE Replace the MAIN
TONER SENSOR. HARNESS ASSY.
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