Contents4.3.2.5 Adjusting the Stitcher Unit................................................................................................................ 4- 104.4 Troubleshooting............................................................................................................................................... 4- 124.4.1 Error Code................................................................................................................................................. 4- 124.4.1.1 E500;Communication error ............................................................................................................... 4- 124.4.1.2 E503;Saddle stitcher unit communication error ................................................................................ 4- 124.4.1.3 E505;Backup RAM error .................................................................................................................. 4- 124.4.1.4 E514;Rear end assist motor error ...................................................................................................... 4- 124.4.1.5 E530;Front aligning plate motor error............................................................................................... 4- 134.4.1.6 E531;Staple motor error .................................................................................................................... 4- 134.4.1.7 E532;Stapler shift motor error........................................................................................................... 4- 134.4.1.8 E535;Swing motor error .................................................................................................................... 4- 144.4.1.9 E537;Rear aligning plate motor error................................................................................................ 4- 144.4.1.10 E540;Tray 1 shift motor error.......................................................................................................... 4- 154.4.1.11 E542;Tray 2 shift motor error.......................................................................................................... 4- 154.4.1.12 E584;Shutter malfunction................................................................................................................ 4- 154.4.1.13 E5F0;Paper positioning plate motor error ....................................................................................... 4- 164.4.1.14 E5F1;Paper folding motor error ...................................................................................................... 4- 164.4.1.15 E5F2;Guide motor error .................................................................................................................. 4- 164.4.1.16 E5F3;Aligning motor error.............................................................................................................. 4- 174.4.1.17 E5F4;Stitcher (rear) error ................................................................................................................ 4- 174.4.1.18 E5F5;Stitcher (front) error............................................................................................................... 4- 174.4.1.19 E5F6;Paper pushing plate motor error ............................................................................................ 4- 184.4.1.20 E5F9;Micro switch error ................................................................................................................. 4- 184.5 Outline of Electrical Components ................................................................................................................... 4- 194.5.1Sensors (Finisher Unit).............................................................................................................................. 4- 194.5.2Microswitches (Finisher Unit)................................................................................................................... 4- 224.5.3Solenoids (Finisher Unit) .......................................................................................................................... 4- 234.5.4Motors (Finisher Unit)............................................................................................................................... 4- 244.5.5Clutches (Finisher Unit) ............................................................................................................................ 4- 264.5.6PCBs (Finisher Unit) ................................................................................................................................. 4- 274.5.7Sensors (Saddle Stitcher Unit) .................................................................................................................. 4- 284.5.8Microswitches (saddle Stitcher Unit) ........................................................................................................ 4- 304.5.9Motors (Saddle Stitcher Unit) ................................................................................................................... 4- 324.5.10Solenoids (Saddle Stitcher Unit) ............................................................................................................. 4- 334.5.11PCBs (Saddle Stitcher Unit).................................................................................................................... 4- 344.6 Variable Resistors (VR), Light-Emitting Diodes (LED), and Check Pins by PCB ........................................ 4- 354.6.1Overview ................................................................................................................................................... 4- 354.6.2Finisher Controller PCB ............................................................................................................................ 4- 354.6.3Saddle Stitcher Controller PCB................................................................................................................. 4- 364.7 Upgrading ........................................................................................................................................................ 4- 374.7.1Upgrading (Finisher Unit) ......................................................................................................................... 4- 374.7.2Upgrading (Saddle Stitcher Unit).............................................................................................................. 4- 454.8 Service Tools................................................................................................................................................... 4- 544.8.1Solvents and Oils....................................................................................................................................... 4- 54Chapter 5 Error Code5.1 Overview ........................................................................................................................................................... 5- 15.1.1Overview ..................................................................................................................................................... 5- 1