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MX-M1100 IMAGE PROCESS SECTION H – 8
D. Process control items
Process control correction operation.
E. Process control Disable / Enable setting
The operations of process control can be disabled or enabled with Sim. 44-1.
No
Name
Function / Operation
1
Main high voltage PWB
Outputs the developing bias voltage, the main charger voltage, the transfer voltage, and the transfer cleaning
voltage based on the control signal from the PCU PWB.
voltage based on the control signal from the PCU PWB.
2
Main charger unit
Charges the OPC drum surface negatively and uniformly by negative discharge.
3
OPC drum
Forms electrostatic latent images with laser beams, and forms toner images on the electrostatic latent image
section.
section.
4
Developer roller
Composes a magnetic brush with developer, and forms toner images on the OPC drum.
5
Toner bottle
Supplies toner to the toner hopper unit by rotating the toner bottle itself.
6
Transfer belt
Transfers toner images on the OPC drum to paper.
7
Transfer roller
Applies a voltage for transfer of toner on the OPC drum to paper.
8
Toner hopper section
Supplies toner to the developing section.
9
PCU PWB
Controls the whole process section based on the information of the sensors and the counters.
10
LSU
Controls the laser power.
No.
Item
Purpose
Variable element
Control item
1
Image density sensor
sensitivity adjustment
sensitivity adjustment
The sensor sensitivity is effected by a dirty sensor or
temperature changes.
temperature changes.
Sensor dirt, temperature
change
change
Image density sensor LED
current
current
2
OPC drum dark potential
correction
correction
The dark potential is maintained to the proper level,
Deterioration, temperature, humidity, and generations of
ovelapping quality effect the dark potential level.
Deterioration, temperature, humidity, and generations of
ovelapping quality effect the dark potential level.
Usage of the OPC drum,
temperature/humidity change
temperature/humidity change
MC grid voltage
3
OPC drum photo sensitivity
correction/ OPC drum
charging correction
correction/ OPC drum
charging correction
The charging potential and the photo sensitivity are
always maintained to the proper levels for deterioration of
the OPC drum and changes in the temperature and
humidity as well as to prevent against multi generation of
overlap copying.
always maintained to the proper levels for deterioration of
the OPC drum and changes in the temperature and
humidity as well as to prevent against multi generation of
overlap copying.
Usage of the OPC drum,
temperature/humidity change
temperature/humidity change
Laser power/
MC grid voltage
MC grid voltage
4
High density image
correction (High density
process control)
correction (High density
process control)
The high image density is maintained to the proper level
and corrects for deterioration of consumable parts,
changes in temperature and humidity.
and corrects for deterioration of consumable parts,
changes in temperature and humidity.
Usage of the OPC drum and
developer, humidity/
temperature change, other
changes in the process section
environment conditions
developer, humidity/
temperature change, other
changes in the process section
environment conditions
DV bias voltage
5
Half-tone density correction
(Half-tone process control)
(Half-tone process control)
The print density of medium density section images is
always maintained to the proper level for deterioration of
consumable parts in the process section and changes in
the temperature and the humidity.
always maintained to the proper level for deterioration of
consumable parts in the process section and changes in
the temperature and the humidity.
Usage of the OPC drum and
developer, humidity/
temperature change, other
changes in the process section
environment conditions
developer, humidity/
temperature change, other
changes in the process section
environment conditions
Laser power
6
Toner density correction
The toner density is always maintained to the normal
level, enabling printing at the normal density.
level, enabling printing at the normal density.
Usage of developer,
temperature / humidity change
temperature / humidity change
Toner density control level
(Toner density sensor gain)
(Toner density sensor gain)
Change in the developing bias
voltage after the high density
image correction.
Image area. (Pixel count)
voltage after the high density
image correction.
Image area. (Pixel count)
7
Transfer current correction
The transfer performance is always maintained to the
proper level for various changes in conditions.
proper level for various changes in conditions.
Temperature and humidity,
paper type, paper width, usage
of the transfer belt.
paper type, paper width, usage
of the transfer belt.
Transfer current
Display
Content
Setting range
Default
DARK POTENTIAL
OPC drum dark potential correction
Disable: 1: NO
Enable: 0: YES
Enable
ID
High density image correction (High density process control)
Enable
ID SP
High density image correction (High density process control)
Enable
VH
Medium density image correction (Half-tone process control)
Enable
ENV
Process environment correction Enable / Disable setting
Enable
LIFE
Process life (consumable parts usage) correction Enable / Disable setting
Enable
LIMI
Process correction limit process Enable / Disable setting
Enable
MULTI
Dark potential correction Enable / Disable setting during printing
Enable
TN HUM
Toner density (for humidity) correction
Enable
TN LIFE
Toner density life (for developer usage) correction
Enable
TN LOW
Toner suppression control (NOT USED)
Enable
TN DOT
Toner density correction (The toner supply amount is controlled according to the
dot count number in printing of a certain quantity from starting printing.)
dot count number in printing of a certain quantity from starting printing.)
Enable
TN PCFB
Toner density correction (Correction is made for the high density image
correction result (DV bias change amount).)
correction result (DV bias change amount).)
Enable
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