FrameMaker Ver.5.5(PC) EP1054/EP1085/EP2030 DIS/REASSEMBLY, ADJUSTMENT
98.04.13
D-9
✽ Details of Readjustments/Resetting Involved In Replacement of PWB-Y, UN2 and UN3.
• When PWB-Y is replaced:
Carry out Memory Clear and then make the Tech. Rep. Program, User's Choice, and
Adjust settings again.
• When UN2 is replaced: (18/23 cpm copier only)
Adjust the Original Size Detecting Board.
• When UN3 is replaced:
Discard the developer which had been used until UN3 was replaced, charge the Devel-
oping Unit with fresh starter, and adjust ATDC.
Symbol Part Name Removal Procedure
PWB-A Master Board Open 1. → Release and swing up the Upper Half of
the copier. → Remove 19.
PWB-C Power Supply Board Open 1. → Release and swing up the Upper Half of
the copier. → Remove 17 (18/23 cpm copier only), 18,
and 19. → Remove four screws that secure the Power
Supply Unit Cover.
PWB-D Noise Filter Board
PWB-E
(15/18 cpm
copier)
Motor Drive Board Open 1 and 12. → Remove 9, 10, and 11.
PWB-F
(23 cpm
copier)
Motor Drive Board Open 1. → Remove 11. → Remove 9 and 10. →
Remove the Multi Bypass Unit.
PWB-H AE Sensor Board Remove 3 and 4. → Remove the optical cover.
PWB-P Control Panel Open 1. → Remove 9. → Release and swing up the
Upper Half of the copier. → Remove 21. → Remove
seven screws that secure Control Panel.
PWB-Y RAM Board Open 1. → Release and swing up the Upper Half of
the copier. → Remove 19.
PU1 Power Supply Unit <18/23 cpm copier>
Open 1. → Remove 11. → Remove 9 and 10. →
Remove the Multi Bypass Unit.
<15 cpm copier>
Open 1 and 12. → Remove 9, 10, and 11.
PU2 DC Power Supply
Unit
Open 1. → Release and swing up the Upper Half of
the copier. → Remove 17 (18/23 cpm copier only) and
18.
HV1 High Voltage Unit Open 1. → Release and swing up the Upper Half of
the copier. → Remove 19. → Remove PWB-A.
UN2
(18/23 cpm
copier only)
Original Size Detect-
ing Board
Remove 3 and 4. → Remove the optical cover.
UN3 ATDC Sensor Open 1. → Release and swing up the Upper Half of
the copier. → Take out the I/U. → Remove two screws
that secure the Synchronizing Roller Guide Unit.
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