Canon iR105 Service Manual page 717

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Any of the various printer boards (accessories) is faulty.

0000 A fault exists in any of the printer boards (accessories).

Any of the various printer boards (accessories) is faulty. The main control-

ler PCB is faulty.

0000 A communication fault exists between the main controller PCB

In the case of E677,

• If it occurs when the main power supply is turned on,

Suspect a hardware fault.

Keep in mind that switching off and then on the power switch too fast can

cause E677 to be indicated because of a specific timing interval needed to

initialize the copier and the printer board. Be sure to wait for 5 sec or

more before turning the main power switch back on.

• If it occurs during normal use,

If it occurs during printing and can be corrected after canceling the print

job and turning off and then on the power switch, suspect an overload on

If an overload was imposed on the CPU of the printer board for some time

(as when processing a large volume print data while receiving a large vol-

ume data from the network), E677 can be indicated at times. If so, cancel

all print jobs, and turn off and then on the main power switch of the

copier; advise the user to send print data on a job-by-job basis.

Machine types are not compatible between Boot ROM and System. (e.g.,

Boot ROM for the iR8500 Copy model is mounted on the system for the

iR8500 PS/PCL model.)

and any of the various printer boards (accessories).

2000 2000 2000 2000

CANON iR105 REV.0 JULY 2001

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