Adf Sub Regist; Dmax; 1St Transfer Voltage; 2Nd Transfer Voltage - Konica Minolta magicolor 2490MF Service Manual

11. SERVICE MODE
11.4.9

ADF SUB REGIST

• To adjust for variations in the accuracy of all parts and their mounting accuracy by vary-
Function ing the scanning start position in the sub-scanning direction when using the Automatic
Document Feeder.
• When the original glass is replaced.
• When a new Auto Document Feeder Unit is mounted
NOTE
Use
• After the [PRN MAIN REGIST] and [PRN SUB REGIST] and [CCD SUB ZOOM]
adjustments have been performed
• After the [ADF SUB ZOOM] adjustments have been performed
Adjustment
Range
Setting/
See P.15 of the Auto Document Feeder Unit service manual.
Procedure
Adjustment
Instructions
11.4.10

DMAX

Function • To adjust density of each color.
Setting/ • The default setting is 0%.
procedure • Adjustment range: -1.6% -0.8% "0%" +0.8% +1.6%
11.4.11

1st TRANSFER VOLTAGE

Function • To adjust the voltage applied to the transfer roller for each color.
Use • When adjusting density of each color
• The default setting is 0V.
Setting/
• Adjustment range: -500V ~ +500V
procedure
• Step: 50V
11.4.12

2nd TRANSFER VOLTAGE

• Adjusts image characteristics according to user requirements for each type of media by
Function
varying the second transfer voltage.
• To adjust the second transfer voltage when an image problem (void areas, white spots)
occurs due to the characteristics of the type of media being used.
Use
• If white spots occur, decrease the 2nd transfer voltage (adjust in the minus direction).
• If void areas occurs, increase the 2nd transfer voltage (adjust in the plus direction).
• The default setting is 0V.
• Adjustment range: -1500V ~ +1500V
Setting/ • Step: 100V
procedure • Types of paper to be adjusted
PLAIN
J-POSTCARD
126
TRANS.
THICK STOCK
Field Service Ver. 1.0 Jul. 2006
LABELS LETTERHEAD
GLOSSY