U5:Fan Assy Fail - Oki B6100 Technical Manual

Primary FIPs:Error Codes

3.4 U5:FAN ASSY FAIL

Step
1
INITIAL ANALYSIS
Inspect the following components.
• Fan Assy (PL9.1.7)
• PWBA HKB26 MCU (PL10.1.13)
• PWB ESS (PL10.1.2)
Are they compatible with your printer version, correctly
installed, not damaged, deformed, or contaminated?
2
FAN ASSY (PL9.1.7) ANALYSIS
Can you hear or see the Fan Assy spinning when you
power-on the printer?
3
FAN ASSY SIGNAL ANALYSIS
Check the voltage between P/J28-13 and P/J28-8 on the
PWBA HKB26 MCU (PL10.1.13) while the U5 code is dis-
played.
Is there +3.3VDC between P/J28-13 and P/J28-8?
3-12
Actions and Questions
OKI B6100 Laser Printer - Base Engine Technical Manual
There is a problem with the Fan Assy.
Yes
Go to step 2. Replace the
problem com-
ponents.
Go to step 3. Go to 6.16
Fan Assy Fail-
ure.
Replace the Replace the
Fan Assy PWBA HKB26
(RRP9.1.2). MCU
(RRP10.1.7).
Version 1.0
No