T-21
(6)
C1200: ASIC memory abnormal
<Detection Timing>
<Troubleshooting Procedures>
(7)
C1300: Polygon mirror motor error
<Detection Timing>
<Troubleshooting Procedures>
Description
• An error occurred while writing to or reading the SRAM on the Control Board (PWB-C).
Relevant Electrical Components
Controller/Mechanical Control Board (PWB-P)
Step
Action
Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electric Parts)
1
Turn this machine off, then on
again.
–
–
–
2
Check the connection of the
memory on the PWB-P, and
then correct it if necessary.
☞
D-12
–
–
3
Replace PWB-P.
☞
D-12
–
–
Description
• The LOCK signal is not detected within a predetermined period of time that begins 1
sec. after the Polygon Motor has been energized.
• No new LOCK signal is detected for a 1-sec. period that begins 1.5 sec. after the first
LOCK signal was detected.
• The LOCK signal is not detected for a continuous 0.5-sec. period in a state in which the
Polygon Motor runs stably.
• The LOCK signal remains ON for a continuous 5-sec. period or more when the Polygon
Motor remains deenergized.
Relevant Electric Parts
PH Unit
Flat cable
Controller/Mechanical Control Board (PWB-P)
Step
Action
Ref. Page
WIRING DIAGRAM
Control Signal
Location
(Electric Parts)
1
Check cables for connection and
correct as necessary.
–
–
–
2
Replace PH Unit.
☞
D-19
–
–
3
Replace PWB-P.
☞
D-12
–
–
