Chapter 55-65.5 Service Mode5.5.1 Outline5.5.1.1 Hardware Switches 0008-1823This fax has the following hardware switches. Be sure not to use those switches not discussed herein; they are for use at the factory.SCNT BoardJumper switch (J971)The clock IC is backed up with a lithium battery by short-circuiting with a jumper plug.5.5.1.2 Service Data Setting 0008-1824Service mode has the following service data items. These items can be checked/changed according to the menu on the display.#SSSW (Service Soft Switch settings)These setting items are for basic fax service functions such as error management, echo countermeasures, and communication trouble countermeasures.#MENU (MENU switch settings)These setting items are for communication functions, such as NL equalizer and transmission levels.#NUMERIC PARAMETER (NUMERIC parameter settings)These setting items are for inputting numeric parameters such as the various conditions for the RTN signal transmission.#SPECIALThese setting items are for telephone network control functions.#NCU (NCU settings)These setting items are for telephone network control functions such as the selection signal transmission conditions and the detection conditions, for thecontrol signals sent from the exchange.#FAXDo not use.#SCANDo not use.#PRINTDo not use.#NETWORKDo not use.#CODECDo not use.#SYSTEMDo not use.#COUNTER (Counter indication)Count data such as the read and print are displayed.#REPORT (Report output)Use it to output reports on various service data.E010 main motor fault Check the connector of the main motor.Replace the main motor.replace the DCNT Borad.E021 developing rotary motor fault Check the connector of the developing rotary motor.Replace the developing rotary motor.Replace the DCNT Borad PCB.E022 developing rotary drive mechanism fault Check the connector of the developing rotary drive sensor.Check the connector of the drive motor.Replace the developing rotary drive sensor.Replace the drive motor.Replace the DC controller PCB.E071 ITB home position sensor fault Check the connector of the ITB home position sensor.Replace the ITB home position sensor.Replace the DC controller PCB.E078 secondary transfer roller drive mechanismfaultCheck the connector of the roller drive sensor.Check the connector of the roller drive clutch.Replace the main drive assembly (roller Drive sensor).Replace the drum cartridge (roller drive cam).Replace the DC controller PCB.E100 scanner fault Check the connector of the laser scanner assembly.Replace the laser scanner assembly.Replace the DCNT Borad.E196 DCNT Borad memory fault Replace the DCNT Borad.E197 engine communication error Replace the DCNT Borad.E747 SCNT board memory fault Replace the SCNT Borad.E805 fan fault Check the connector of the cooling fan.Replace the cooling fan.Replace the DCNT Borad.Code Main cause/description Remedial action
