Image Formation System; Adjusting The Height Of The Charging Wire; Fixing System; Adjusting The Lower Roller Pressure (Nip) - Canon imageRUNNER 7095 Service Manual

14.5 Image Formation System

14.5.1 Adjusting the Height of the
Charging Wire
T-14-2
Height of charging wire
Primary
- 0mm
7.5
+3mm
Pre-transfer
No height adjusting
mechanism
13.6 ±0.3mm
Separation
17.0 0.2mm
Transfer
MEMO:
The height (position) of the primary and transfer
charging wires may be adjusted 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.
0010-9325
- 0mm
7.5
+3mm
15.5 0.2mm

14.6 Fixing System

14.6.1 Adjusting the Lower Roller
Pressure (nip)
The nip width must be as indicated in figure; if
not, adjust it using the pressure adjusting nut.
Feed
direction
F-14-34
a and c are points 10 mm from both edges of pa-
per.
T-14-3
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
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
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
Chapter 14
0010-9324
c
b
Middle
of paper
a
for Nip Width
0010-9623
14-17