Minolta EP4000 - Page 16

D-9
Symbol Part Name Removal Procedure
PWB-A Master Board Remove No. 16.
PWB-B MSC Board Swing down No. 1.
!
Remove the Circuit Board cover.
PWB-C Power Supply Board Remove No. 16.
!
Remove the Toner Pipe.
<EP4000 Except U.S.A., Canada and Europe>
Remove No. 16.
!
Remove the Toner Collecting Box.
Remove the Toner Pipe.
PWB-D Noise Filter Board Remove No. 16.
PWB-E1 1st Drawer Paper Empty
Board
Slide out the drawer.
!
Remove the Holder.
!
Remove the
PWB-E2 2nd Drawer Paper
Empty Board
Slide
out
the
drawer
.
!
Remove
the
Holder
.
!
Remove
the
Paper Mounting Plate.
PWB F
SCP
Board
Remove
No
16
PWB-F SCP Board Remove No. 16.
PWB-G AIDC Sensor Board Swing down No. 1.
!
Remove the IU.
!
Remove the PC
Drum Charge Corona.
!
Remove the PC Drum Paper Sepa-
rator.
PWB-H AE Sensor Board Remove No. 3.
!
Remove No. 4.
PWB-I Tech. Rep. Settings
Switches Board
Swing down No. 1.
!
Remove the Circuit Board Cover.
PWB-J Exposure Lamp
Regulator
Remove No. 16.
!
Remove PWB-A Mounting Bracket Assy.
!
Remove the ADF Connector Unit.
!
Remove the Expo-
sure Lamp Regulator Cover.
PWB-L Fuse Board Remove No. 16.
<EP4000 Except U.S.A., Canada and Europe>
Remove No. 16.
!
Remove the Toner Collecting Box.
Remove the Toner Pipe.
PWB-M1 1st Drawer Flexible
printed Circuit
Slide
out
the
drawer
PWB-M2 2nd Drawer Flexible
printed Circuit
Slide out the drawer.
PWB-R RAM Board Remove No. 16.
UN1 Control Panel Swing down No. 1
!
Remove No. 2.
UN2 Original Size Detecting
Board
Remove No. 16.
UN3 ATDC Sensor Swing down No. 1.
!
Remove the IU.
UN5 1st Drawer Paper
Descent Key
Slide out the drawer.
!
Remove the Cassette Cover.
!
Re-
UN6 2nd Drawer Paper
Descent Key
Slide
out
the
drawer
.
!
Remove
the
Cassette
Cover
.
!
Re-
move the Switch Cover.
PU1 Power Supply Unit Remove No. 16.
!
Remove the Power Supply Unit Cover.
HV1 Hight Voltage Unit Remive No. 16.
!
Remove the HV1 Cover.
z
Readjustment/Resetting Involved in Replacement of PWB-G, PWB-R, UN2 and UN3
D
When PWB-G is replaced:
Adjust the exposure level in the Auto Exposure mode. (See p. D-72.)
D
When PWB-R (RAM Board) is replaced:
Carry out Memory Clear and then make the Tech. Rep. Choice, User’s Choice, and Adjust settings
again.
D
When UN2 is replaced:
Make the initial adjustment of the Original Size Detecting Board. (See p. D-68.)
D
When UN3 is replaced:
Discard the developer which had been used until UN3 was replaced, recharge the Developing Unit
with fresh starter, and adjust the ATDC. (See p. D-69.)