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Maintenance
Description
item No.
2FD/2FF/2FG
1-4-36
U100
Checking the operation of main high voltage
Description
Performs main charging.
Purpose
To check main charging.
Start
Press the start key. The screen for selecting an item is displayed.
Display
Description
MC ON
Turning the main charger on
LASER ON/OFF
Turning the main charger on and the laser scanner unit on and off
Method
1. Select the item to be operated.
2. Press the start key. The selected operation starts.
3. To stop operation, press the stop/clear key.
Completion
Press the stop/clear key at the screen for selecting an item when main charger output stops. The screen for
selecting a maintenance item No. is displayed.
U101
Setting high voltages
Description
Changes the developing bias voltage and transfer voltage by changing the developing bias control voltage and
transfer control voltage.
Purpose
To check the developing bias and the transfer voltage or to take measures against drop of image density or
background fog.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set. The selected item is displayed in reverse.
2. Change the setting using the cursor up/down keys.
Display
Description
Setting range
Initial setting
DEV BIAS
Developing bias AC component frequency
-255 to 255
0
at image formation
DEV DUTY
Developing bias AC component duty
-100 to 100
0
at image formation
DEV SBIAS
Developing shift bias potential
-1 to 1
0
at image formation
TC DATA
Transfer control voltage
0 to 255
120
Increasing the DEV BIAS setting makes the image lighter; decreasing it makes the image darker.
Increasing the DEV DUTY setting makes the image lighter; decreasing it makes the image darker.
Increasing the DEV SBIAS setting makes the image darker; decreasing it makes the image lighter.
Increasing the TC DATA setting makes the transfer voltage higher, and decreasing it makes the voltage
lower.
3. Press the start key. The value is set.
Interrupt copy mode
While this maintenance item is being performed, copying from an original can be made in interrupt copy mode.
Completion
Press the stop/clear key. The screen for selecting a maintenance item No. is displayed.
Summary of Contents for AD-63
Page 340: ...AD 63...
Page 343: ...3CX 1 1 2 1 1 2 Part names Figure 1 1 1 Duplex unit...
Page 344: ...3CX 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Paper path Duplex unit...
Page 360: ...DF 78...
Page 363: ...3B5 1 1 2 1 1 2 Part names Figure 1 1 1 1 Intermediate tray 2 JAM release lever 3 Eject tray...
Page 397: ...J 1402...
Page 400: ...3B6 1 1 2 1 1 2 Part names Figure 1 1 1 1 Job separator tray 2 LED...
Page 401: ...3B6 1 1 3 1 1 3 Machine cross section Figure 1 1 2 Paper path...
Page 402: ...3B6 1 1 4 1 1 4 Drive system Figure 1 1 3 1 Gear 20 2 Gear 28 3 Gear 28 4 Eject roller gear...
Page 413: ...PF 70...
Page 415: ...1 1 2 3CC 2 4 Appendixes Timing chart No 1 2 4 1 Timing chart No 2 2 4 2 Wiring diagram 2 4 3...
Page 417: ...3CC 1 1 2 1 1 2 Parts names 1 Upper drawer 2 Lower drawer 3 Desk left cover Figure 1 1 1 3 1 2...
Page 418: ...3CC 1 1 3 1 1 3 Machine cross section Paper path Figure 1 1 2 Machine cross section...
Page 450: ...RA 1...
Page 452: ...3CP 1 1 1 1 1 1 Part names Figure 1 1 1 Switchback unit Switchback unit open close lever...
Page 453: ...3CP 1 1 2 1 1 2 Machine cross section Figure 1 1 2 Paper path Switchback unit...
Page 470: ...PF 75...
Page 472: ...1 1 2 5FF 2 4 Appendixes Timing chart No 1 2 4 1 Timing chart No 2 2 4 2 Wiring diagram 2 4 3...
Page 475: ...5FF 1 1 3 1 1 3 Machine cross section Paper path Figure 1 1 3 Machine cross section...
Page 513: ......