9. SERVICE REMARKS
The following pages contains remarks for common situations. Be sure to follow all warnings,
cautions, and notes described in this manual, including those not described in this section.
9.1 Machine Installation
1. Select the environment conditions as described in "1.1.2 Environment."
2. To avoid unnecessary service calls, explain the items described in "1.5 User Guidance
Items" to the customer before installing the machine.
3. Use the following cautions for the copier installation:
• When the optional finisher is not used, the sub-tray must be ordered and used.
• Distribute the cleaning carrier evenly by turning the knob. The cleaning unit has no agitation mechanism as the
development unit does.
• Be sure to return the developer from the development roller to the inside of the unit before pulling out the OPC unit.
Do this by turning the development knob.
• Never remove the oil supply unit from the fusing unit to prevent oil marks on copies. It can be removed only when
the oil blade, metering blade, and oil supply felt are replaced with new ones.
• The machine is set up for a 400 volts 3-phase power supply (European version) or 240 volts single phase power
supply (U.S.A. version) at the production line. To install the machine in areas where the power supply is 380 or
415 volts (220 or 230 volts single phase), be sure to follow steps 28 to 32 described in "1.2 Copier Installation."
• Using a level gauge, level the machine flat on the floor. This is mainly to prevent affecting the tracking operation
of the OPC belt.
• When inch size originals are used, make a slot to stop the original stopper at the 81/2 inch position. When the slot
is made, operating cautions must be instructed to operators, so that operators can adjust the original stopper
position correctly according to the original size set in the ADF. If the original stopper position is not proper because
the A4 position and 81/2 inch position are very close, original misfeeds will occur.
• Before making copies, carry out forming for the developer, OPC belt, and cleaning carrier (in this order) using
service tool [3-04].
• Before checking copy image quality, check the toner density control data in the service tool [4-02] screen. Perform
setting C if the data is not correct. Also, check the AID reference voltage in the [4-03] screen using the PC-1 chart.
Perform setting A if the value is not correct. (If the AID reference voltage is within the standard, you do not have
to perform setting A.)
• The side-to-side registration must be checked for all paper trays.
• The erase margin and duplex side fence width must be checked for all paper sizes.
• If the erase margin is not sufficient, thin black lines may sometimes appear on copies (especially on the side edges
of copies in the ADF mode). This is because the side-to-side registration varies slightly on each copy if an operator
does not set the original side guides securely. You have to make more than 10 copies and check that all of them
are within specifications after the adjustment.
• Check the side-to-side registration of the back side of the copy in the duplex mode before installing the peripherals.
If the value is outside specifications, you have to remove the copier right cover.
• Explain all user tool items and some of the service tools to the customer. Then, listen to the customer’s requests
and set the copier accordingly. Keep the set items using the format described in "1.6 Setting User and Service
Tools." (If the main control board is replaced, you can set all items again using the format.)
1 July 1994 Machine Installation
9-1
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