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Date: Jun. 16, 1994
COPIER : Z-20, Z-23, Z-25
No. : SP-1773
[Service Information]
SERVICE MANUAL CORRECTIONS
1.Model name: Z-20, 23, 25, 27
2.General: Corrections have been made to the service manual. Please make the necessary
corrections.
3.Description: An error appears in the “Self Diagnosis Function Chart” on P.26, item 2, under the error
message column.
(Error)
All indicators except for the ready
indicator blink.
Error
• AE sensor output abnormality
• The read value (AESP signal) of the white
L6
mylar section in the back of the table glass
detected by the sensor is 0.2V or less.
• Full wave signal is not inputted for more
than 1.5 sec.
• AE sensor defect
• Dirt on the light receiving section of the AE
Sensor
• White strip on underside of glass is dirty.
• Copy lamp disconnection (breakage)(Does
not light up.)
• Power PWB defect
• Main PWB defect
(Correction)
All indicators except for the ready
indicator blink.
• AE sensor output abnormality
• The read value (AESP signal) of the white
L8
mylar section in the back of the table glass
detected by the sensor is 0.2V or less.
• Full wave signal is not inputted for more
than 1.5 sec.
• AE sensor defect
• Dirt on the light receiving section of the AE
Sensor
• White strip on underside of glass is dirty.
• Copy lamp disconnection (breakage)(Does
not light up.)
• Power PWB defect
• Main PWB defect
SHARP CORPORATION Reprography Division
Green
C