Kyocera TASKalfa 2551ci, Service Manual

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2NP
2-4-20
When maintenance item U411 (Automatic adjustment in the scanner) is run using the specified original (P/N 7505000005)
the following adjustments are automatically made:
Adjusting the scanner magnification (U065)
Adjusting the scanner leading edge registration (U066)
Adjusting the scanner center line (U067)
When maintenance item U411 (Automatic adjustment in the DP) is run using the specified original (P/N 7505000005)
the following adjustments are automatically made:
* : When running this test chart, you first must clean the feed rollers with alcohol and ensure the DP width guides
are correctly positioned against the original.
Adjusting the DP magnification (U070)
Adjusting the DP leading edge registration (U071)
Adjusting the DP center line (U072)
11
Adjusting the center line
(scanning adjustment) Adjusting the original scan data
(image adjustment) U067
U072
FRONT
ROTATE
FRONT
BACK
CIS
Test chart P.1-3-47
P.1-3-53
U067: For copying an original placed on the platen.
To make an adjustment for rotate copying, select
ROTATE.
U072: For copying originals from the DP.
To make an adjustment for duplex copying, select
BACK. :Mechanism reversal model
To make an adjustment for duplex copying, select
CIS. :Double-sided simultaneous reading model
12
Adjusting the leading edge registra-
tion
(scanning adjustment) Original scan start timing U066
U071
FRONT
ROTATE
FRONT HEAD
BACK HEAD
CIS HEAD
Test chart P.1-3-46
P.1-3-51
U066: For copying an original placed on the platen.
To make an adjustment for rotate copying, select
ROTATE.
U071: For copying originals from the DP.
To make an adjustment for duplex copying, select
BACK HEAD. :Mechanism reversal model
To make an adjustment for duplex copying, select
CIS HEAD. :Double-sided simultaneous reading
model
13
Adjusting the leading edge margin
(scanning adjustment) Adjusting the original scan data
(image adjustment) U403
U404
B MARGIN
B MARGIN
Test chart P.1-3-130
P.1-3-131
U403: For copying an original placed on the contact
glass
U404: For copying originals from the DP.
14
Adjusting the trailing edge margin
(scanning adjustment) Adjusting the original scan data
(image adjustment) U403
U404
D MARGIN
D MARGIN
Test chart P.1-3-130
P.1-3-131
U403: For copying an original placed on the contact
glass
U404: For copying originals from the DP.
15
Adjusting the left and right margins
(scanning adjustment) Adjusting the original scan data
(image adjustment) U403
U404
A MARGIN
C MARGIN
A MARGIN
C MARGIN Test chart P.1-3-130
P.1-3-131
U403: For copying an original placed on
the contact glass
U404: For copying originals from the DP.
Adjusting
order
Item Image Description
Maintenance mode
Original Page Remarks
Item No. Mode
Image quality
Item Specifications
100% magnification
Enlargement/reduction
Lateral squareness
Leading edge registration
Skewed paper feed
(left-right difference)
Lateral image shifting
Machine: ±0.8%
Using DP: ±1.5%
Machine: ±1.0%
Using DP: ±1.5%
Machine: ±1.5 mm/375 mm
Using DP: ±3.0 mm/375 mm
Cassette: ±2.5 mm
MP tray: ±2.5 mm
Duplex: ±2.5 mm
Cassette: 1.5 mm or less
MP tray: 1.5 mm or less
Duplex: 2.0 mm or less
Cassette: ±2.0 mm
MP tray: ±2.0 mm
Duplex: ±3.0 mm