Sharing Canon knowledge

[Guest]

I am new to Canon and want share with you experience and knowledge.
hope I could have a abbreviated explanation to these:
CQ Issues, R-con, DC-con, Mn-con, FDIMM
because I find some difficulty following the inputs at canon forum.
I searched long time before I write to you at some Canon SM and at Internet (GOOGLE) but no way.

[teckat]

I am new to Canon and want share with you experience and knowledge.
hope I could have a abbreviated explanation to these:
CQ Issues, R-con, DC-con, Mn-con, FDIMM
because I find some difficulty following the inputs at canon forum.
I searched long time before I write to you at some Canon SM and at Internet (GOOGLE) but no way.

CQ= COPY QUALITY [light/dark/blurry/shifted/blank/double image/background/ many more to list

RCON= READER CONTROLLER= [ Documents that are Copied/or Scanned off the Copy Glass- will have the the Controller interpret the images ]

DCON= DC Controller= [ Converts control signals{to HVT-to D/A converter-from
CPU/Interfaces with external devices/DC Voltages/Control loads/& many more ]

MNCON= Main Controller= Main PCB serves to control jobs, output images going to the printer, and memory.The sub Main PCB serves to process input images coming from the reader unit.
[Main controller has other boards connected to it =SRMA PCB>a (sub)Main PCB>Ethernet board>UFR board or Open interface board>maybe a USB interface board>Image conversion board>Power distribution PCB>Differential PCB/expansion RAM>Boot ROM>the Printers HDD(Hard Drive) and some others,depends on models.

FDIMM= Flash Dual In-Line Memory Modules {Boot Rom} [Each of these modules (number, function, and location depends on the particular copier model) contains firmware providing machine specific functions and instructions.Each module can be updated in the field using the ServiceSupport Tool as bug fixes and or new features are added to the copier. Upgrading the modules is known as Flashing.]

[DAG COPIERS & COMPUTERS]

And if you are a technician, it is advisable to strive to get the SERVICE/REPAIR MANUALS for most of the models of the canon machines. This well help you to learn the technical theories of these machines, learn more of terminologies used and it will put you at secure & sure footing when you are to repair or do troubleshooting on any of these the machines. Do not ignore the USER MANUALS as well, especially those of the network versions.
Thank you for showing interest to learn.

[MarkLesx]

Man thanks to you.

Teckat
For answering me, with these information.

DAG COPIERS & COMPUTERS
For your good advice.

Mark

[MarkLesx]

Just a little bush . .

Does the RAM on the DC controller PCB and RAM on the reader controller PCB still hold information when I turn the machine Off?

Isn't RAM content will cleared automatically when I turn the copier machine (like computer) and dosen't have any information till I turn the copier on?

Like what information will be hold in reader controller PCB & the DC controller PCB for Ex.?
Thanks in adveace.

[teckat]

If u clear RCON/DCON/MNCON- the original settings from Door specs or P-Print Data sheets & User Data sheets must be put back in-
SRAM Retains the setup data of the service mode.
Saves image data management information, service mode settings data, and user mode settings data saved on the HDD

The system software used to control the operation of the machine is stored on the HDD.
When the machine is started up, the CPU on the main controller PCB reads the system software from the HDD into the image memory (DDR-SDRAM) of the main
controller PCB for use as instructed by the boot program of the boot ROM.


Start-Up Sequence
<Boot Program Area>
-Boot Program (interval 1)
The boot program is executed by the CPU on the main controller PCB when the main power switch is turned on, making checks on the image memory (DDRSDRAM) and the HDD condition.
An error code will be indicated if a fault is detected. If the check ends normally, the control program is read from the HDD to the memory.
<Control Program Area>
-Control Program 1 (interval 2)
1.The individual devices (i.e., hardware components on the controller PCB) are checked and initialized.
2.If the engine was not previously turned off appropriately (i.e., by performing its shut-down sequence), the system files are repaired as necessary. (The engine may
need an extra time when starting up.)
3.The individual program modules are initialized.
-Control Program 2 (interval 3)
1. The individual software modules are initialized, and the printer and screen configurations are established.
2. The start-up sequence ends when the printer and scanner are correctly recognized.

[Desert Rat]

Teckat,
Thank you for that explaination. I check these boards for info such as this. I have worked on Canons for a while now,
and I basicly like the machines. Some models more than others. Right now I am having a problem with an IR 6020i.
I will start a new post for the troubles I am having (E00061-0001 and a light band in the center of page in line with
paper travel).

Thanks

DR

[MarkLesx]

Many thanks to you Sir.

[MarkLesx]

This is the last Terminologies:
What is meant by:
V-CONT
Thank you very much.

[teckat]

This is the last Terminologies:
What is meant by:
V-CONT
Thank you very much.

iR3200/3220/2620 and other Color models
<V-CONT>
• VCONT-Y/M/C/K (Used to adjust electric potential for image contrast.)
Adjustment range: –30 to 30 (10 V units) (Value at time of factory shipment/value after
RAM clear: 0)
The larger the setting value, the higher the density.
Whenever possible, avoid using this setting during normal operation.
• VBACK-Y/M/C/K (Used to adjust electric potential for removing image fog.)
Adjustment range: Y/M –6 to 12 (5 V units) (Value at time of factory shipment/value
after RAM clear: 0)
C/K –12 to 6 (5 V units) (Value at time of factory shipment/value after
RAM clear: 0)
The larger the setting value, the more fog is reduced.
Whenever possible, avoid using this setting during normal operation.

[Desert Rat]

V-CONT is an abreviation for voltage control. You may see this on a lot of Canon models.

Example: I was having a problem with a code E00061-0001 on an IR6020i
This is a code from the potential sensor system.
After I figured out it was a laser problem I went into service mode to adjust/V-CONT and adjusted
the developer bias offset to improve the solid fill.
Before I did this I sat down and read the manual two or three times to make sure I understood
what I was adjusting and why. The section I read in the IR6000 manual was "Image Formation".
Definitly read the book.

DR

[MarkLesx]

Thanks too much.

[ar6565]

Dear Tech;
I think I also owe a private thanks to all members who helped in this thread "Sharing Canon Knowledge".

offset value, and
PVE_OFST, EPOTOFST, VD-OFST, DE-OFST, Vdc

I looked for the at these terminologies Google and (http://www.freepatentsonline.com/)
at US Patent 6717128 and US Patent 3800079 and other related patents where I used to get information and at dictionaries also Canon IR5000 SM. But till now didn't get an answer.

[Desert Rat]

This is one of the best places to get the straight scoop, from the people that actually fix things,
one way or another.

DR

[teckat]

Macgyver.jpg
MacGyver

"A paperclip can be a wondrous thing"