– 141 –
TROUBLESHOOTING
3.11 Faulty Feed Solenoid
Step
Check
Remedy
YES
NO
1
(Initial Check)
Are any parts, broken, malformed, incorrectly in-
stalled or different from those listed in the specifica-
tions?
• Principle Parts to be Checked:
(1) Feed solenoid, (2) Feed roller assembly
(3) MCU PWB, (4) LVPS assembly
2
(Check that power is supplied to the feed solenoid.) *1
Is the voltage 24VDC between P/J16-2PIN
↔
P/J11-
7PIN?
3
(Check the ON signal of the feed solenoid.) *1
Is the voltage 0VDC between P/J16-1PIN
↔
P/J16-
2PIN when the feed solenoid is on, and is the voltage
23VDC when the feed solenoid is off? (Measure using
PEAK HOLD.)
• Check using diagnosis code 80.
*1: Be sure the EP toner cartridge is installed and the front cover assembly is securely closed.
See section 3.2
Faulty LVPS
Assembly 24VDC.
See step 3.
Replace the feed
solenoid.
Replace the MCU
PWB.
Replace the part or
install the part
correctly.
See step 2.
Summary of Contents for WinType 4000
Page 1: ...WinType 4000 TECHNICAL MANUAL SECOND EDITION LASER PRINTER ...
Page 4: ......
Page 6: ... 2 GENERAL SPECIFICATIONS ...
Page 14: ... 10 THEORY OF OPERATION ...
Page 26: ... 22 THEORY OF OPERATION Figure 2 9 Electrical ...
Page 28: ... 24 REPLACEMENT AND ADJUSTMENT OF PARTS ...
Page 62: ... 58 REPLACEMENT AND ADJUSTMENT OF PARTS ...
Page 64: ... 60 MAINTENANCE GUIDE ...
Page 114: ... 110 MAINTENANCE GUIDE ...
Page 116: ... 112 TROUBLESHOOTING ...
Page 176: ... 172 5 ELECTRICAL 5 1 Disassembly Drawing 1 2 3 4 14 4 14 2 14 1 14 3 13 12 11 6 5 7 8 9 10 ...
Page 179: ......