imagePress C1 PASCAL settings

[mynameis]

Hey guys.

It says in the service manual, that PASCAL settings have an impact on density. Why is it, that no matter if i push all values to either +128 or -128, restart the machine and nothing changed...?
Is there some process control blocking these values? Where can i activate the use of my modified values?

Thanks in advance.

[teckat]

Re: imagePress C1 PASCAL settings

Hey guys.

It says in the service manual, that PASCAL settings have an impact on density. Why is it, that no matter if i push all values to either +128 or -128, restart the machine and nothing changed...?
Is there some process control blocking these values? Where can i activate the use of my modified values?

Thanks in advance.

How old is DRUM
& Developers---------

I never mess/ or had to mess with those settings/ I leave at default "0"

What is the exact copy q issue _____________


This machine provides two types of PASCAL control (image characteristics correction control); Reader PASCAL and Printer PASCAL.

- Reader PASCAL (3-page output paper):
Reads the 3-page output images at the reader unit and expresses them in ideal image characteristics by the PASCAL control (image characteristics correction control).

Reader PASCAL Control
This machine performs PASCAL control (image characteristics correction control) to express the image read by the reader unit in ideal image characteristics.
This control is performed in the main controller.
The printer outputs three test patterns (*1) based on the data in the main controller. The reader unit sequentially reads the output test patterns and the main controller performs gradation correction to obtain ideal image
characteristics.
In addition, in this control, the machine compares the electric potential contrast with the density value read by the reader, and performs D-max control (image density correction control) to determine the contrast electric
potential for the target density.



- Printer PASCAL (10-page output paper)
Expresses the output image in ideal image characteristics using two color sensors mounted in the duplexing feeding unit without using the reader unit, by the PASCAL control (image characteristics correction control).

Printer PASCAL Control
This machine performs PASCAL control (image characteristics correction control) on the printer side only to realize ideal image characteristics by using the two color sensors mounted in the duplexing feeding unit, without
using the reader unit.
This control is performed in the main controller on the printer side.
The printer outputs the test patterns based on the data in the main controller.
The color sensor sequentially reads the output test patterns and the main controller performs gradation correction to obtain ideal image characteristics.



This control is executed by the automatic gradation correction provided in the user mode.
Switch the Reader PASCAL and Printer PASCAL in the following mode.
System administration setting > Device administration setting > Automatic gradation correction > Method of automatic gradation correction

[mynameis]

Re: imagePress C1 PASCAL settings

"What is the exact copy q issue _____________"



I am trying to get more toner density. Thats basically it.
I know about mode "A" and "B" in user mode, and about ADJUST>COLOR in the service mode. But these are just increasing density below 100% levels. What i need is a toner density increase at 100% CMYK.

I tried FUNCTION>INSTALL>SPPLY , then FUNCTION>INSTALL>INIT, so that there is more toner inside the developer, but this did not change much. I was thinking to adjust the doctor blade more open, to have more room for more toner to pass. But i think i am on a wrong path there, as the blade is also responsible for charging the developer thru tribo, right?

Any ideas?

PS: Drum, DEVs etc. are good.

[teckat]

Re: imagePress C1 PASCAL settings

"What is the exact copy q issue _____________"



I am trying to get more toner density. Thats basically it.
I know about mode "A" and "B" in user mode, and about ADJUST>COLOR in the service mode. But these are just increasing density below 100% levels. What i need is a toner density increase at 100% CMYK.

I tried FUNCTION>INSTALL>SPPLY , then FUNCTION>INSTALL>INIT, so that there is more toner inside the developer, but this did not change much. I was thinking to adjust the doctor blade more open, to have more room for more toner to pass. But i think i am on a wrong path there, as the blade is also responsible for charging the developer thru tribo, right?

Any ideas?

PS: Drum, DEVs etc. are good.

================================================== =================================
PG10 ??? Post it here

PG5 for each color ?? Post them here


u never get 100% density on this series

moving that blade will not get u more density

FUNCTION>INSTALL>SPPLY , then FUNCTION>INSTALL>INIT, so that there is more toner inside the developer,

that will also not increase Density/ keep doing that & u will pop e020 codes.


1- do u have a Fiery connected ?
2- what do u mean Drum & Dev's are OK !_??
3-did u check if the developer retainers are keeping dev units locked down in correct position_?
4- are u sure u don't have a ITB Issue_?

ATR Control is executed to supply the correct amount of Toner to each individual Developing Assembly.
Toner supply is achieved by calculating the Toner consumption and the amount of Toner to supply.
The amount of Toner supplied to each Developing Assembly is calculated by data collected in three different ways.

Toner Supply Calculation
The three (3) components in calculating Toner Supply:

1. Video Count
2. Data from the Patch Image Sensor (PS3)
3. Data from the ATR Sensor (PS7)

The Video Count monitors each document output when printing. Calculations made on the Main Controller PCB estimate the amount of Toner consumption from the Video Count data,
and then, in conjunction with the other methods of data collection, it calculates the amount of Toner actually consumed.

The Patch Image Sensor measures the Toner image formed on the Photosensitive Drum. This function is performed sheet‐to‐sheet, and based on the data collected, the amount of Toner
supplied is adjusted so the overall image density will achieve the target density.

The ATR Sensor When the ATR Sensor is replaced, the Developer Assemblies must be replaced to bring the Developing Block to an optimal standard. At this time an INIT must be
executed in Service Mode in order to generate and store the new Developing values.
ATR Sensor is not used for the Black Developer

[mynameis]

Re: imagePress C1 PASCAL settings

================================================== =================================
PG10 ??? Post it here

PG5 for each color ?? Post them here


u never get 100% density on this series

moving that blade will not get u more density




that will also not increase Density/ keep doing that & u will pop e020 codes.


1- do u have a Fiery connected ?
2- what do u mean Drum & Dev's are OK !_??
3-did u check if the developer retainers are keeping dev units locked down in correct position_?
4- are u sure u don't have a ITB Issue_?

Thanks teckat.

About PG10 and PG5: Don't worry about the colours, it is ceramic toner. Magenta is substituted with Selenium Red, Yellow is substituted with Cadmium Yellow, so these look normal, in my case.
The density is basically ok, but i got another C1, where there are stronger colours, and i really wonder why that is. Both are in the same room, so humidity, temperature etc. are all equal.
I measured the toner layer thickness on both machines, using 100% M, and there is a difference up to 4 micron.

1: Yes i have a T1 on the machines.
2: As i have recently changed the developer filling, checked everything, and the test pages look basically good, i asume everything is fine, hardwarewise.
3: Yes, dev units are locked properly.
4: I changed the transfer belt, it is new.

Another thing is: I worked with the Canon CLC 1100 series, also using ceramic toner, and there always was a really thick toner layer. I wonder why i can't get this density with the C1 models. It should be possible, from the hardware side, right? Or is it due to toner reduction methods, different toner nowadays, etc?

One more idea: Does the switch for high humidity on the printers side have any impact on toner density, as i think transfer voltages are modified? (I changed the secondary transfer voltage for a paper type and it had a vissible impact.)

What do you mean with "u never get 100% density on these series"?

[teckat]

Re: imagePress C1 PASCAL settings

Thanks teckat.

About PG10 and PG5: Don't worry about the colours, it is ceramic toner. Magenta is substituted with Selenium Red, Yellow is substituted with Cadmium Yellow, so these look normal, in my case.
The density is basically ok, but i got another C1, where there are stronger colours, and i really wonder why that is. Both are in the same room, so humidity, temperature etc. are all equal.
I measured the toner layer thickness on both machines, using 100% M, and there is a difference up to 4 micron.

1: Yes i have a T1 on the machines.
2: As i have recently changed the developer filling, checked everything, and the test pages look basically good, i asume everything is fine, hardwarewise.
3: Yes, dev units are locked properly.
4: I changed the transfer belt, it is new.

Another thing is: I worked with the Canon CLC 1100 series, also using ceramic toner, and there always was a really thick toner layer. I wonder why i can't get this density with the C1 models. It should be possible, from the hardware side, right? Or is it due to toner reduction methods, different toner nowadays, etc?

One more idea: Does the switch for high humidity on the printers side have any impact on toner density, as i think transfer voltages are modified? (I changed the secondary transfer voltage for a paper type and it had a vissible impact.)

What do you mean with "u never get 100% density on these series"?

-----------------------------------------------------------------------------------------------------------

ceramic toner

--the CLC 1100 uses a completely different heat system ----heat rollers vs pressure belts

u can't compare a CLC with a imagePress ---two different animals

--high humidity switch /is for paper curl issue

Density Adjustment on ImagePRESS

those A/B Modes are for Standard Toner/Starter Developers & not Ceramic Toner