HAKUBA 26PPM Laser Printer - Base Engine Technical Manual
3-9
Version 1.0
Primary FIPs:Error Codes
3.2 U2:ROS FAIL
There is a problem with the ROS Assy.
Step
Actions and Questions
Yes
No
1
INITIAL ANALYSIS
Inspect the following components.
•
ROS Assy
(PL8.1.9)
•
PWBA HKB26 MCU
(PL10.1.13)
•
PWBA HKB PS
(PL10.1.17)
•
CRU
(PL8.1.1)
•
Harness Assy ROS (J21-J211, J212, J213)
(PL8.1.7)
•
Harness Assy VDO (J22-J233)
(PL8.1.8)
Are they compatible with your printer version, correctly
installed, not damaged, deformed, or contaminated?
Go to step 2.
Replace the
problem com-
ponents.
2
NVRAM ANALYSIS
Check the parameter using ADJUSTMENT MODE MENU.
Is the parameters set correctly?
Go to step 3.
Set correct
paramete.r
3
ROS MOTOR ANALYSIS
1. Check the ROS Motor using ROS MOTOR TEST.
2. If you cannot hear the ROS Motor running, unplug P/J29
(
Motor Assy Main
).
Can you hear the ROS Motor running before the U2 code
appears?
Go to step 4.
Go to 6.3
ROS Assy
Failure.
4
LD DIODE ANALYSIS
1. Disconnect P/J22 and P/J21 on the
PWBA HKB26 MCU
(PL8.1.13).
2. Close the
Cover Assy Front
(PL1.1.9).
3. Switch ON Main Power.
4. Check the voltage between P21-5 and P21-6.
Is there +5 VDC between P21-5 and P21-6?
Go to 6.3
ROS Assy
Failure.
Go to
6.1
PWBA HKB
PS Failure
(+3.3 VDC).
Summary of Contents for b 6100
Page 1: ...HAKUBA 26PPM Laser Printer Base Engine Technical Manual Version 1 0...
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Page 124: ...8 2 HAKUBA 26PPM Laser Printer Base Engine Technical Manual Version 1 0 Diagnostic Mode...
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Page 148: ...9 2 HAKUBA 26PPM Laser Printer Base Engine Technical Manual Version 1 0 Adjustment Mode...
Page 152: ...9 6 HAKUBA 26PPM Laser Printer Base Engine Technical Manual Version 1 0 Adjustment Mode...
Page 396: ...12 26 Hakuba 26PPM Laser Printer Base Engine Technical Manual Version 1 0 Parts List...