2GM
(15) Fixing is poor. ............................................................................................................................... 1-5-21
(16) Image center does not align with the original center. ................................................................... 1-5-21
1-5-4 Electrical problems ............................................................................................................................. 1-5-22
(1) The machine does not operate when the power switch is turned on. ........................................... 1-5-22
(2) The main motor does not operate. (C2000) ................................................................................. 1-5-22
(3) The scanner motor does not operate. .......................................................................................... 1-5-22
(4) Cooling fan does not operate. ...................................................................................................... 1-5-22
(5) The feed clutch does not operate. ................................................................................................ 1-5-22
(6) The MP feed clutch does not operate. .......................................................................................... 1-5-23
(7) The registration clutch does not operate. ..................................................................................... 1-5-23
(8) The eraser lamp does not turn on. ............................................................................................... 1-5-23
(9) The exposure lamp does not turn on. ........................................................................................... 1-5-23
(10) The exposure lamp does not turn off. ........................................................................................... 1-5-23
(11) The heater lamp does not turn on. ............................................................................................... 1-5-23
(12) The heater lamp does not turn off. ............................................................................................... 1-5-23
(13) Main charging is not performed. ................................................................................................... 1-5-24
(14) Transfer charging is not performed. ............................................................................................. 1-5-24
(15) A paper jam in the paper feed or exit section is indicated
when the power switch is turned on. ............................................................................................ 1-5-24
(16) The message requesting cover to be closed is displayed
when the front cover is closed. ..................................................................................................... 1-5-24
(17) Others. .......................................................................................................................................... 1-5-24
1-5-5 Mechanical problems ......................................................................................................................... 1-5-25
(1) No primary paper feed. ................................................................................................................. 1-5-25
(2) No secondary paper feed. ............................................................................................................ 1-5-25
(3) Skewed paper feed. ...................................................................................................................... 1-5-25
(4) The scanner does not travel. ........................................................................................................ 1-5-25
(5) Multiple sheets of paper are fed at one time. ................................................................................. 1-5-25
(6) Paper jams. .................................................................................................................................. 1-5-25
(7) Abnormal noise is heard. .............................................................................................................. 1-5-25
1-6 Assembly and Disassembly
1-6-1 Precautions for assembly and disassembly ......................................................................................... 1-6-1
(1) Precautions ..................................................................................................................................... 1-6-1
1-6-2 Removing the process unit ................................................................................................................... 1-6-2
1-6-3 Removing the principal outer covers .................................................................................................... 1-6-3
(1) Removing the front top cover/face-down output tray ...................................................................... 1-6-3
(2) Removing the right cover ................................................................................................................ 1-6-4
(3) Removing the left cover .................................................................................................................. 1-6-4
1-6-4 Removing the feed roller ...................................................................................................................... 1-6-5
1-6-5 Removing the MP feed roller ................................................................................................................ 1-6-6
1-6-6 Removing the transfer roller ................................................................................................................. 1-6-8
1-6-7 Removing the primary circuit PWBs ..................................................................................................... 1-6-9
(1) Removing the engine PWB ............................................................................................................ 1-6-9
(2) Removing the main PWB ............................................................................................................. 1-6-10
(3) Removing the power supply PWB and high voltage PWB ........................................................... 1-6-12
(4) Removing the bias PWB ............................................................................................................... 1-6-13
1-6-8 Removing the main motor and drive unit ........................................................................................... 1-6-14
1-6-9 Removing and splitting the fuser unit ................................................................................................. 1-6-18
(1) Removing the separation craws ................................................................................................... 1-6-20
(2) Removing the heater lamp ........................................................................................................... 1-6-21
(3) Removing the heat roller .............................................................................................................. 1-6-22
(4) Removing the thermistor .............................................................................................................. 1-6-24
(5) Removing the thermal cutout ........................................................................................................ 1-6-25
(6) Removing the press roller ............................................................................................................. 1-6-26
1-6-10 Removing and scanner unit ............................................................................................................... 1-6-27
1-6-11 Removing the laser scanner unit and the eraser lamp ....................................................................... 1-6-29
1-6-12 Removing the ISU unit ....................................................................................................................... 1-6-32
Summary of Contents for CS-1820
Page 1: ...SERVICE MANUAL Published in Mar 05 2GM70940 CS 1820 Includes Fax System K...
Page 9: ...SERVICE MANUAL Published in July 05 Revision 2 Fax System K...
Page 11: ...PARTS LIST Published in June 05 2GM70950 CS 1820 CS 1820LA Includes Fax System K...
Page 14: ...FAX System K PARTS LIST Published in March 2005 Version 1 0...
