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2KN/2KP
1-3-42
U101
Setting the other high voltages
Description
Sets the developing bias control voltage, the transfer control voltage, and the reverse transfer bias control
voltage or checks the output of these voltages.
Purpose
To check or change the developing bias, the transfer voltage, and the reverse transfer bias voltage.
Method
Press the start key. The screen for selecting an item is displayed.
Setting
1. Select the item to be set.
2. Change the setting using the * or # keys.
3. Press the start key. The value is set.
PTC section operation check
1. Select PTC TEST at the screen for selecting an item.
2. Press the start key.
Drive motor, transfer motor and developing motor are turned on, and then cleaning lamp and PTC unit is
turned on.
Supplement
While this maintenance item is being executed, copying from an original is available in the interrupt copying
mode.
Completion
Press the stop/clear key at the screen for selecting an item. The screen for maintenance item No. is dis-
played.
Maintenance
item No.
Description
Display
Description
Setting
range
Default
setting
DEV BIAS SET
Developing bias control voltage
0 to 255
117
TC SET
Transfer control voltage
0 to 255
185 (82 cpm)
135 (62 cpm)
TC REV SET
Reverse transfer control voltage
0 to 255
215
VPP SET
VPP setting value
60 to 196
145
PTC TEST
PTC section operation check
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Summary of Contents for TASKalfa 620
Page 1: ...SERVICE MANUAL Published in August 2009 842KP112 2KPSM062 Rev 2 TASKalfa 620 820 ...
Page 4: ...This page is intentionally left blank ...
Page 10: ...This page is intentionally left blank ...
Page 144: ...2KN 2KP 1 3 106 This page is intentionally left blank ...
Page 308: ...2KN 2KP 1 5 88 This page is intentionally left blank ...
Page 412: ...2KN 2KP 2 3 60 This page is intentionally left blank ...
Page 435: ...1 1 INSTALLATION GUIDE INSTALLATION GUIDE FOR SIDE FEEDER ...
Page 442: ...INSTALLATION GUIDE FOR LARGE SIZE SIDE FEEDER ...
Page 460: ...INSTALLATION GUIDE FOR DOCUMENT FINISHER ...
Page 475: ...INSTALLATION GUIDE FOR CENTERFOLD UNIT ...
Page 490: ...INSTALLATION GUIDE FOR MULTI JOB TRAY ...
Page 501: ...INSTALLATION GUIDE FOR PUNCH UNIT ...
Page 512: ...INSTALLATION GUIDE FOR STOPPER GUIDE ...
Page 515: ...INSTALLATION GUIDE FOR PRINTING SYSTEM ...
Page 518: ...INSTALLATION GUIDE FOR SCAN SYSTEM ...
Page 520: ......
Page 521: ......