Others - Canon iR4570 Series Service Manual

(COPIER>ADJUST>FEED>ADJ>REGIST)
- Check to see if the image read start position adjustment is correct.
(COPIER>ADJUST>ADJ-XY>ADJ-X/ADJ-Y)
- Check to see if the setting of ADJUST/OPTION is identical to that indicated on the service label.
- Check to see if all errors have been reset.
(COPIER>FUNCTION>CLEAR-ERR)
General
- Check to see if the power plug is securely connected.
- Check to see if the power outlet provides a specific level of AC voltage.
- Check to see that that the sensors, clutches, motors, and solenoids are operating normally and all connectors are
connected securely. (Be sure to check the power supply and signal routes by referring to the general circuit
diagram.)
- Check to see that the leakage breaker and circuit breaker are operating normally.
- Check to see that there is no biting of wires and loosening of screws.
- Check to see that all external panels and covers have been correctly fitted.
- Check to see that the main power switch and the control panel power switch are turned on.
- Check to see that the power and signal cables are correctly routed.
- Check to see that the operation of the cover switch is normal.
- Check to see that none of the fuses on the PCBs have an open circuit.
- Check to see that the user has a correct understanding of how to use the machine and is using it correctly.

14.1.7 Others

iR2270 / iR2870 / iR3570 / iR4570
If a machine is brought from a cold to warm room, its inside can start to develop condensation, leading to various
problems.
a. condensation on the BD sensor is likely to cause problems associated with E100
b. condensation on the dust-proof glass is likely to cause poor image density in sub scanning direction
c. condensation on the contact sensor of the reader unit or on the copyboard glass can cause light images
d. condensation on the pickup or feed guide can cause paper feed problems
If the problem given in d. above has occurred, dry wipe the units in the feed system. Do not open the package
containing a toner cartridge, developing unit, or drum unit right after it has been brought in from a cold to warm place
to avoid condensation. Be sure to leave it alone for a while (1 to 2 hr), opening it after it has become fully used to the
temperature of the site.
Chapter 14
0007-9389
14-3