Canon 1000 Service Manual page 743

Code
• Video controller PCB (faulty)
• Laser unit (faulty)
• Scanner (faulty)
• Video controller PCB (faulty)
• Laser intensity (poor adjustment)
• Laser unit (faulty)
• Laser unit (faulty)
• Laser shutter (faulty)
• Photosensitive drum (faulty)
• Scanner (faulty)
• Video controller PCB (faulty)
E061 • Laser intensity (adjustment faulty)
• Potential measurement unit
(faulty)
• HVDC (faulty)
• Laser unit (faulty)
• Video controller PCB (faulty)
• Laser intensity (adjustment fault)
COPYRIGHT © 2001 CANON INC.
Cause
CANON CLC1000/1000S/3100 REV.2 MAY 2001 PRINTED IN JAPAN (IMPRIME AU JAPON)
7. TROUBLESHOOTING IMAGE FAULTS/MALFUNCTIONS
xx16 The difference between VD1 and VL1
measurements is 20 V or less and, in
addition, the measurement of VD1 is
200 V or more.
The difference between VD2 and VL2
measurements is 200 V or less and, in
addition, the VD2 measurement is 600
V or higher.
xx17 The VL1 measurement is 200 V or
higher and, in addition, the VL2 meas-
urement is 400 V or higher.
xx21 The computation value of Vdc is the
upper limit value (750 V) or higher.
xx22 The computation value of Vg is the
upper limit value (950 V) or higher.
xx23 The computation value of V00 is the
upper limit value (950 V) or higher.
xx24 The computation value of Vdc is the
lower limit value (200 V) or lower.
xx25 The computation value of V00 is the
lower limit value (325 V) or lower.
xx26 The computation value of Vg is the
lower limit value (250 V) or lower.
xx27 The computation value of VFF is the
lower limit value (700 V) or lower.
xx28 The computation value of VFF is the
lower limit value (0 V) or lower.
Description
7-307