Scheduled Servicing Basic Procedure - Canon imageRUNNER 7095 Service Manual

Chapter 13

13.3 Scheduled Servicing Basic Procedure

13.3.1 Scheduled Servicing Basic Procedure
1. As a rule, perform schedule servicing every 500,000 prints.
2. Before setting out for a visit, check the service book, and take parts for which replacement is expected.
3. If cleaned with alcohol, each charging wire must be checked to make sure that it is fully dry (solvent)
before putting it back in the machine.
4. If left alone for a long time in an area subject to dust, humidity, or oil smoke, the power plug can collect
dust, which will absorb moisture to suffer an insulation fault, turning into a possible source of fire.
Be sure to disconnect it on a periodical basis, and clean it and the area around the power outlet using a
dry cloth.
No. Step
1 Report to the person in charge.
2 Record the counter reading.
3 Make test prints.
4 Clean the charging assemblies:
- charging wire (primary, pre-
transfer, transfer/separation)
- grid wire (primary charging
assembly)
- charging assembly shielding
plate
- roller electrode
Points to Note When Cleaning/Replacing the Charging Wire or Replacing the Charging Wire Cleaner
After the following, check to make sure that the charging wire is in the middle of the charging wire cleaner;
failure to observe this is likely to cause image faults:
a. cleaning the charging wire
b. replacing the charging wire
c. moving the charging wire cleaner by hand
d. replacing the charging wire cleaner
13-4
Work
Check the general condition.
Check the faulty output.
a. image density
b. soiling of white background
c. character clarity
d. lead edge margin
e. fixing, registration (for
displacement), back (for soiling)
Correct
T-13-3
Remarks
Standard (simplexing)
lead edge: 4.0+1.5/-1.0mm
left/right: 2.5±1.5mm
trail edge: 2.5±1.5mm
Dry wipe with lint-free paper, and
clean with alcohol.
F-13-1
Wrong
0010-9511
As of Nov 2005