Technical Bulletin
No. RTB-005
SUBJECT: Service Manual Correction
DATE: July 15, ’92
PAGE: 1 of 4
PREPARED BY: S. Orita
CHECKED BY:
FROM: Copier Technical Support Section
CLASSIFICATION:
Action Required
Troubleshooting
Retrofit Information
Revision of service manual
Information only
Other
MODEL:
E7 Series
(A076/A077/A078)
Please correct your service manual as follows:
1. Service Manual Page 2–31 (Base Bias Voltage at ID level 5)
The correct base bias voltage at ID level 5 is 160 volts. (200 volts is incorrect.)
Please replace the first table on page 2–31 of the service manual with table below
Manual ID Level
1
2
3
4
5
6
7
Base Bias Voltage (volts)
–120
–160
–160
–160
–160
–200
–240 *Note
Exposure Lamp Data
Grid Voltage (volts)
Vo –4
Vg
±
0
Vo –4
Vg
±
0
Vo –2
Vg
±
0
Vo
±
0
Vg
±
0
Vo +2
Vg
±
0
Vo +2
Vg +50
Vo +4
Vg +50
Vo: Exposure Lamp Data for ID level 4 (SP48)
Vg: Standard Image Grid Voltage (–680 volts)
2. Service Manual Page 2–18 (Sensing measurement for ADS mode)
(The correction is bolded)
Incorrect
Correct
1. Sampling starts 10 millimeters
from the leading edge of the
original and continues for 40
millimeters from the leading edge
of original in full size mode.
1. Sampling starts 10 millimeters
from the leading edge of the
original and continues for 50
millimeters from the leading edge
of original in full size mode.
2. b=
40 mm
Reproduction Ratio
(
%
)
x 100
2. b=
50 mm
Reproduction Ratio
(
%
)
x 100
Reissued on: August 31, ’92
Darker
Lighter