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2KN/2KP
1-4-50
1-4-3 Image formation problems
(1) No image
appears
(entirely white).
(2) No image
appears
(entirely black).
(3) Image is too
light.
(4) Background is
visible.
(5) A white line
appears longitu-
dinally.
See page 1-4-50
See page 1-4-51
See page 1-4-52
See page 1-4-52
See page 1-4-52
(6) A black line
appears longitu-
dinally.
(7) A black line
appears later-
ally.
(8) One side of the
copy image is
darker than the
other.
(9) Black dots
appear on the
image.
(10) Image is
blurred.
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See page 1-4-53
See page 1-4-53
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See page 1-4-54
(11) The leading
edge of the
image is consis-
tently mis-
aligned with the
original.
(12) The leading
edge of the
image is spo-
radically mis-
aligned with the
original.
(13) Paper creases.
(14) Offset occurs.
(15) Image is partly
missing.
See page 1-4-54
See page 1-4-54
See page 1-4-55
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See page 1-4-55
(16) Fusing is poor.
(17) Image is out of
focus.
(18) Image center
does not align
with the original
center.
(19) Image is not
square.
(20) There is a regu-
lar error
between the
centers of the
original and
copy image
when the DP is
used.
See page 1-4-56
See page 1-4-56
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See page 1-4-57
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: ......