Kyocera KM-4230 Service Manual page 441

3-6 Troubleshooting
3-6-1 Image formation problems .................................................................. 3-6-1
(1) No image appears (entirely white). .............................................. 3-6-4
(2) No image appears (entirely black). .............................................. 3-6-5
(3) Image is too light. ........................................................................ 3-6-6
(4) Background is visible. .................................................................. 3-6-6
(5) A white line appears longitudinally. ............................................. 3-6-7
(6) A black line appears longitudinally. ............................................. 3-6-7
(7) A black line appears laterally. ...................................................... 3-6-8
(8) One side of the copy image is darker than the other. .................. 3-6-8
(9) Black dots appear on the image. ................................................. 3-6-9
(10) Image is blurred. .......................................................................... 3-6-9
(11) The leading edge of the image is consistently misaligned with
the original. ................................................................................ 3-6-10
(12) The leading edge of the image is sporadically misaligned with
the original. ................................................................................ 3-6-10
(13) Paper creases. .......................................................................... 3-6-11
(14) Offset occurs. ............................................................................ 3-6-11
(15) Image is partly missing. ............................................................. 3-6-12
(16) Fixing is poor. ............................................................................ 3-6-12
(17) Image is out of focus. ................................................................ 3-6-13
(18) Image center does not align with the original center. ................ 3-6-13
(19) Image is not square. .................................................................. 3-6-14
(20) Image contrast is low (carrier scattering) .................................. 3-6-14
(21) There is a regular error between the centers of
the original and copy image when the SRDF is used. ............... 3-6-15
(22) There is a regular error between the leading edges of
the original and copy image when the SRDF is used. ............... 3-6-15
(23) When the duplex unit is used, the center of the original
image and that of the copy image do not align. ......................... 3-6-16
(24) When the large paper deck is used, the center of the original
image and that of the copy image do not align. ......................... 3-6-16
(25) Toner scatters at the leading edge of the image. ...................... 3-6-17
3-6-2 Paper misfeeds ................................................................................. 3-6-18
• Copier ............................................................................................. 3-6-18
(1) A paper jam in the paper feed, conveying or eject section is
indicated as soon as the main switch is turned on. ................... 3-6-18
(2) A paper jam in the paper feed section is indicated during
copying (no paper feed from copier upper drawer). .................. 3-6-19
(3) A paper jam in the paper feed section is indicated during
copying (no paper feed from copier lower drawer). ................... 3-6-20
(4) A paper jam in the paper feed section is indicated during
copying (no paper feed from bypass). ....................................... 3-6-20
(5) A paper jam in the paper feed section is indicated during
copying (jam in copier vertical paper conveying section). ......... 3-6-21
(6) A paper jam in the paper feed section is indicated during
copying (jam in converging section). ......................................... 3-6-22
CONTENTS
2A3/4
1-1-27