Fixing System; Adjusting The Lower Roller Pressure (Nip); Points To Note When Mounting The Fixing Heater; Electrical Components - Canon iR7086 Series Service Manual

Chapter 14
Height of charging wire
Transfer
MEMO:
The height (position) of the primary and transfer charging wires may be ad-
justed by turning the screw found at the rear of the charging assembly. A full
turn of the screw changes the position of the charging wire by about 0.7 mm.

14.6 Fixing System

14.6.1 Adjusting the Lower Roller Pressure (nip)

iR7105 / iR7095 / iR7086
The nip width must be as indicated in figure; if not, adjust it using the pres-
sure adjusting nut.
Feed
direction
a and c are points 10 mm from both edges of paper.
Dimension Measure with upper and lower rollers fully heated
b 200 V: 9.0 -/+ 0.5 mm,
208/230 V: 10.0 -/+ 0.5 mm
| a-c | 0.5 mm or less
a. Generating Output for Nip Width Measurement
Wait for 15 min after the copier ends its warm-up period; make 20 A4 copies,
and measure the nip.
1) Place A3 copy paper in the manual feed tray.
2) Make the following selections in service mode to generate output:
COPIER > FUNCTION > FIXING > NIP-CHK.
The A3 paper will be picked up, and a copy like the one shown in figure will
be delivered.

14.6.2 Points to Note When Mounting the Fixing Heater

iR7105 / iR7095 / iR7086
1. Do not touch the heater surface.
2. For both heaters, mount so that the side with the longer heater harness
is toward the front.
3. Viewing from the front of the fixing assembly, mount the main heater
on the right (for 200V model, 1150 W; for 208V model, 1220 W; for
230V model, 1185 W) and the sub heater on the left (for 200V model, 565
W; for 208V model, 600 W; for 230V model, 645 W).
4. Viewing from the rear, connect the right side of the faston of the heater
at the rear to the main heater, and connect the top side to the sub heater.
Height of the Fixing Inlet Guide
14-16
c
b
Middle
of paper
a
F-14-31
T-14-3
5.8mm
(reference only)
Fixing screw
0010-9324
Do not loosen the fixing screw on the inlet guide, as you will have to adjust
the position of the inlet guide if you remove the inlet guide base. If you must
loosen it, be sure to adjust the position of the inlet guide afterward by refer-
ring to the index on the fixing assembly.

14.7 Electrical Components

14.7.1 After Replacing the Hard Disk

iR7105 / iR7095 / iR7086
1) Formatting the HDD
Start up the machine in safe mode (i.e., turn on the main power while
holding down the 2 and 8 keys).
Using the HD formatting function of the SST, execute full partition
formatting. (For details, see the chapter on upgrading.)
2) Downloading the System Software
Using the SST, download the following: System, LANG, RUI, PS-
FONT, OCR dictionary, SSL encryption key, SSL CA certificate, MEAP
content.
3) Execute the following service mode item:
COPIER > FUNCTION > CLEAR > CA-KEY (Level 2)
4) Turn off and then on the power.
MEMO:
Execution of the following may delete the keys/certificates used for encrypt-
ed communications and the CA certificates used for authentication of exter-
nal server certificates:
- replacement/formatting of the HDD
- replacement of the main controller PCB/initialization of the RAM
If a key/certificate for encrypted communications has been deleted, the con-
trol panel screen will indicate a message to the effect that the key has been
corrupted: however, the key/certificate/CA certificate installed at time of
shipment from the factory may be
brought back
TION>CLEAR>CA-KEY. If doing so has failed, use the SST to install the
key/certificate/CA certificate, and execute CA-KEY once again.
Points to Note When Executing Service Mode Item CA-KEY
If the user has generated/added a key/certificate/CA certificate on his/her
own, executing CA-KEY will also delete these files. Inform the user of this,
and ask him/her to re-install them as necessary after the execution of CA-
KEY.
0010-9623
Points to Note About a HDD to Which System Software Has Been In-
stalled
If you must use a HDD to which the system software for a different machine
(thus a different serial number) has been installed, be sure to format it after
mounting it. Otherwise, the machine operation cannot be guaranteed.

14.7.2 After Replacing the Main Controller

iR7105 / iR7095 / iR7086
Before Starting the Work (backing up the data)
If possible, perform the following:
- Using the SST, download the data stored in the RAM of the main controller.
F-14-32
by executing the following:
5.8mm
(reference only)
Fixing screw
0010-9327
COPIER>FUNC-
0010-9328