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2001 CANON INC. 2000 2000 2000 2000 CANON iR2200/iR2800/iR3300 REV.0 MAR. 2001
CHAPTER 6 SELF DIAGNOSIS
6-18 T
E248
0001 A difference is discovered between the ID in EEPROM read when the main
power switch is turned on and the ID in ROM upon comparison.
0002 The data read does not match the data written to EEPROM.
0003 A difference is discovered between the ID of EEPROM and the ID of ROM
upon comparison while writing data.
Main cause The EEPROM (IC403) of the reader controller PCB is faulty. The reader
controller PCB is faulty.
Action
1. Execute the following in service mode: COPIER>FUNCTION>CLEAR>CON. Is the
proem corrected?
YES: End. After executing the service mode, be sure to enter the service
mode data newly.
2. EE-PROM, Reader controller PCB
Try replacing the EE-PROM. Is the problem corrected?
YES: End. After replacement, be sure to enter the service mode data
newly.
NO: Replace the rear controller PCB. After replacement, be sure to en-
ter the service mode date newly.
E261
0000 The intervals of zero-cross signals deviate from the tolerance range while
the fixing heater is supplied with power.
Main cause The wiring is faulty (short circuit, open circuit). The main power supply
PCB is faulty. The DC controller PCB is faulty.
Making Corrections
1. Connectors
Are the connector J205 on the main power supply PCB and the connector
J308B on the DC controller PCB securely connected? (zero-cross signal:
J205-7 <-> J308B-1)
NO: Connect the connectors securely.
2. Main power supply PCB, Main controller PCB
Try replacing the main power supply PCB. Is the problem corrected?
YES: End.
NO: Replace the DC controller PCB.