Service Mode; Outline; Hardware Switches; Service Data Setting - Canon MF8100 Series Service Manual

Chapter 5
Code
E010
E021
E022
E071
E078
E100
E196
E197
E747
E805

5.5 Service Mode

5.5.1 Outline

5.5.1.1 Hardware Switches

This fax has the following hardware switches. Be sure not to use those switches not discussed herein; they are for use at the factory.
SCNT Board
Jumper 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

Service 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.
#SPECIAL
These 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 the
control signals sent from the exchange.
#FAX
Do not use.
#SCAN
Do not use.
#PRINT
Do not use.
#NETWORK
Do not use.
#CODEC
Do not use.
#SYSTEM
Do 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.
5-6
Main cause/description
main motor fault
developing rotary motor fault
developing rotary drive mechanism fault
ITB home position sensor fault
secondary transfer roller drive mechanism
fault
scanner fault
DCNT Borad memory fault
engine communication error
SCNT board memory fault
fan fault
Remedial action
Check the connector of the main motor.
Replace the main motor.
replace the DCNT Borad.
Check the connector of the developing rotary motor.
Replace the developing rotary motor.
Replace the DCNT Borad PCB.
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.
Check the connector of the ITB home position sensor.
Replace the ITB home position sensor.
Replace the DC controller PCB.
Check 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.
Check the connector of the laser scanner assembly.
Replace the laser scanner assembly.
Replace the DCNT Borad.
Replace the DCNT Borad.
Replace the DCNT Borad.
Replace the SCNT Borad.
Check the connector of the cooling fan.
Replace the cooling fan.
Replace the DCNT Borad.
0008-1823
0008-1824