Making Lnitial Checks; Checking The Side Of Installation; Checking The Originals; Checking The Copyboard Cover, Copyboard Glass, And Standard White Plate - Canon ImageRunner iR8500 Series Service Manual

15.1 Making lnitial Checks

15.1.1 Checking the Side of Installation

iR105i/iR105+ / iR9070 / iR85+ / iR8070
Check the site of installation against the following requirements:
a. The voltage of the power supply must be as rated (-/+ 10%). The power plug must remain connected day and night.
b. The site must not be subject to high temperature/humidity (near a water faucet, water boiler, humidifier). The machine must not be installed in a cold
place or in an area near a source of fire or subject to dust.
c. The site must not be subject to ammonium gas.
d. The site must not be subject to direct rays of the sun. As necessary, curtains must be provided.
e. The site must be well ventilated.
f. The machine must be kept level.
g. The machine must remain powered throughout the night.

15.1.2 Checking the Originals

iR105i/iR105+ / iR9070 / iR8070
Check the originals to find out whether the problem is caused by the originals used or is in the machine:
a. The copy density setting is optimum at 5 -/+ 1.
b. If the original has a reddish background, copies can suffer poor contrast.
MEMO:
Red sheets, slips, and the like.
c. The density of the original can have the following effects:
MEMO:
if the original is a diazo copy or is rather transparent, copies can be mistaken as being "foggy."
if the original is prepared in pencil, copies can be mistaken as being "too light."

15.1.3 Checking the Copyboard Cover, Copyboard Glass, and Standard White Plate

iR105i/iR105+ / iR9070 / iR8070
Check the copyboard cover, copyboard glass, and standard white plate for dirt or scratches. If dirt is found, clean it with a solution of mild detergent or
alcohol; if a scratch is found, on the other hand, replace it.

15.1.4 Checking the Charging Assemblies

iR105i/iR105+ / iR9070 / iR85+ / iR8070
a. Check the charging assemblies for dirt and a faulty charging wire.
b. Clean the charging wire and the shielding plate of the charging assemblies. (If dirt cannot be removed, replace it.)
c. Check the type and height of the charging wire.
d. Check to make sure that the changing assemblies are firmly fitted.
e. Check the charging wire spring for rusting.
f. Check the charging wire cleaning pad (of each charging assembly) for displacement.

15.1.5 Checking the Developing Assembly

iR105i/iR105+ / iR9070
a. Check to make sure that the rolls on both ends of the developing assembly are in contact with the drum.
b. Check to make user that the surface of the developing cylinder is coated with an even layer of toner.
c. Check the connectors between the developing assembly and the machine for connection.
d. Check to make sure that the slide switch (SW101) of the HV-DC PCB is in UP position.
e. Check to make sure that the 4th page <DEV-SLO> of the following in service mode in '2': COPIER> OPTION> BODY.
15.1.6 Checking the Developing Assembly
/ iR85+ / iR8070
a. Check to make sure that the rolls on both ends of the developing assembly are in contact with the drum.
b. Check to make user that the surface of the developing cylinder is coated with an even layer of toner.
c. Check the connectors between the developing assembly and the machine for connection.
d. Check to make sure that the 4th page <DEV-SLO> of the following in service mode in '2': COPIER> OPTION> BODY.
Chapter 15
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0007-0812
0007-0817
0007-0819
0007-0820
0009-1604
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