[Misc] Photosensitive Drums life of CLC copiers

[mbgemini]

Could anyone tell me: for how many copies Canon guarantees photosensitive drums? In Service Manual is reported life for many spares but not for drums.
Can they effectively work more than guaranteed life?
We bought sometimes ago and used CLC 1130; in service mode it tells 313K copies TTL, but we don't know if drum has ever been changed before. Can a drum really make all these copies?

[charm5496]

Re: Photosensitive Drums life of CLC copiers

Could anyone tell me: for how many copies Canon guarantees photosensitive drums? In Service Manual is reported life for many spares but not for drums.
Can they effectively work more than guaranteed life?
We bought sometimes ago and used CLC 1130; in service mode it tells 313K copies TTL, but we don't know if drum has ever been changed before. Can a drum really make all these copies?

On the CLC series machines you were doing good to 100K out of the drum before copy quality and error codes would start happening. You would need a service log to tell when it was replaced though as this unit did not accuratly track life like the new machines do.

[mbgemini]

Re: Photosensitive Drums life of CLC copiers

On the CLC series machines you were doing good to 100K out of the drum before copy quality and error codes would start happening. You would need a service log to tell when it was replaced though as this unit did not accuratly track life like the new machines do.

Service log = *28* ? If yes, can I read in somewhere the total copies of the last drum installed?
The copier has worked well untill some weeks ago. The it started with some errors.
The problem now is error code E061 0070 (bias grid over 900) and I can't be able to make copies nomore. I slided out primary corona, but it seems ok. I don't know where starting to solve problem.
Can someone help me??

[charm5496]

Re: Photosensitive Drums life of CLC copiers

Service log = *28* ? If yes, can I read in somewhere the total copies of the last drum installed?
The copier has worked well untill some weeks ago. The it started with some errors.
The problem now is error code E061 0070 (bias grid over 900) and I can't be able to make copies nomore. I slided out primary corona, but it seems ok. I don't know where starting to solve problem.
Can someone help me??

the service mode does not track this information. It has to be tracked by hand in a service log....it's the only way.
E061 can be anything from needing a PM which includes replacing the carona wires and cleaning those sensors that measure the drum voltage as they get soiled with toner. When you slide the drum out it should be a light grey color...if it green in color then you need to replace it as it is old and worn.

[teckat]

Re: Photosensitive Drums life of CLC copiers

the rear flange on drum assembly needs to also be cleaned/
use scotch bright pad to clean bias ring

pull out drum/ if surface has a dark green look
-replace drum/primary grid plate/ Primary post/drum blade

[DANIELCANON]

Re: Photosensitive Drums life of CLC copiers

for clear code E061-0070 execute:
*28*
copier
adjust
laser
p3-vff-4 = 0

[teckat]

Re: Photosensitive Drums life of CLC copiers

E061-0070 =The grid bias output value is 900 V or more.
• The grid bias is at the upper control limit.
Usually means the DRUM is toast= NG*******

CLC1100 SERIES

SERVICE MODE
(*)(2,8)(*) >Initial screen>Select an item

Checking the Surface Potential System
If an image fault has occurred, you must be sure if the cause is in the static latent image
formation block (including the photosensitive drum and the potential control system) or the
developing/transfer system. To that end, the surface potential must be checked as follows:
a. Checking the Surface Potential
1) Select FUNCTION>DPC>DPC in service mode (for potential control).
2) Check the following using DISPLAY>DPOT in service mode.
SM.JPG
Screen display----------Guide
V00-500---------------430 to 570
V00-700---------------600 to 800
VFF-500---------------50 to 150
VFF-700---------------100 to 200
3) If the value is not as indicated, make a zero-level check.
b. Zero-Level Check
You can make use of a zero-level check to see whether the surface potential control circuit is
good or not, thereby finding out whether the level shift circuit of the DC driver PCB and the
potential measurement unit is good or not.
A zero-level check is designed to find out whether the CPU reads the surface
potential of the drum as '0' when it is 0 V.
A zero-level check may be either of the following two:Method 2
1) Turn off the power switch.
2) Remove the photosensitive drum unit.
3) Fit the potential sensor electrode (TKN-0197) to the potential sensor.
When fitting the potential sensor electrode to the potential sensor, make sure that magenta of the electrode will not come into contact with the potential sensor base.
Attach the clip of the jumper line to the potential sensor electrode.
Be sure NOT to let the clip come into contact with the sensor cover. Further, be
sure to allow enough distance from the sensor window.
If the reading is as indicated in method 1 but not as indicated in method 2, suspect dirt on the sensor or a fault in the potential measurement unit. If the reading is not as indicated in method 1 and method 2, you may assume that the signal path from the potential sensor unit to the CPU on the CPU PCB is
normal.
9) Turn off the power switch.
10) Detach the potential sensor electrode.
11) Mount the photosensitive drum unit.
12) Turn on the power switch.

E061-0070
Check the temperature and humidity in service mode
(COPIER>DISPLAY>ANALOG> TEMP/HUM). Are the readings normal?

Is the photosensitive drum grounded properly?
Clean the potential sensor.
Replace the photosensitive drum

[mbgemini]

Re: Photosensitive Drums life of CLC copiers

Many Thanks to all of you for the answers. I need a little time to control your advices and the copier. I must divide my time between daughters, schools, homeworks, dentist! .... and so on. For my work, time is always too little ... I will do something in the afternoon and I'll post soon my results.

[mbgemini]

Re: Photosensitive Drums life of CLC copiers

Hi to all, here I am again. Well, I made these things:

a. Checking the Surface Potential
1) Select FUNCTION>DPC>DPC in service mode (for potential control).
2) Check the following using DISPLAY>DPOT in service mode.

V00-500---------------430 to 570 ---> 444
V00-700---------------600 to 800 ---> 628
VFF-500---------------50 to 150 ---> 129
VFF-700---------------100 to 200 ---> 204

DPOT = 83 - 84 (before shorting the check pins J1040-1 and -2)
DPOT = 97 (during shorting)

Check the temperature and humidity in service mode
(COPIER>DISPLAY>ANALOG> TEMP/HUM). Are the readings normal?

Is the photosensitive drum grounded properly?

I don't know how to verify this.

Clean the potential sensor.

Where is it exactly? Could you post a figure from service manual?

I removed the photosensitive drum unit and cleaned. Now I think I need to find the following parts new but I didn't find part number.

Fig6-608_SM.jpg Fig6-611_SM.jpg

Is there in somewhere a part catalog of all machine? I know some codes but not all of them. Is it also possible to find only the adhesive strips of various parts of this copier without the metal part?

Thanks for the moment. Barbara

[teckat]

Re: Photosensitive Drums life of CLC copiers

u do not need to order those drum parts/ put them back


what color is the DRUM/ POST A PIC-

[teckat]

Re: Photosensitive Drums life of CLC copiers

IMAGE.JPG
IMG.JPG

Checking the LED Activation for the Potential Measurement Circuit
LED1 remains on at all times as long as the copier is supplied with power, indicating that the
potential sensor is operating normally. If it is not in a normal way, suspect that the 24 V-F power is
not supplied or the potential measurement unit is faulty.

POTENTIAL MEASURING PCB ASS'Y//// FG6-0894-000
pot.JPG

[mbgemini]

Re: Photosensitive Drums life of CLC copiers

Hi to all. Here are the last news:

Checking the LED Activation for the Potential Measurement Circuit

Yes, the red LED is always on.
I cleaned potential sensor unit, but I solved the problem of E061-070 only after applying the advise of DanielCanon:

for clear code E061-0070 execute:
*28*
copier
adjust
laser
p3-vff-4 = 0

Now the values DPOT are:
V00-500---------------430 to 570 ---> 443
V00-700---------------600 to 800 ---> 633
VFF-500---------------50 to 150 ---> 81
VFF-700---------------100 to 200 ---> 128
The drum is this colour:
clc1130_drum copia.jpg
photo made without flash and low office illumination
I think is dark green, but now it works!

Now the problem is Magenta Colour --> E020-0100
Some weeks ago the copier gave errors of dirty sensors (before E061-070). So I cleaned all sensors of developer units then I made STIR-4 and only INIT-M. Now the REF-M = 1.
The machine makes copies with single colour black, yellow, cyan, but not magenta.

Here are all the DENS displayed:
Dens_1-3.jpg Dens_2-3.jpg Dens_3-3.jpg

What can I do now?
Barbara

[DANIELCANON]

Re: Photosensitive Drums life of CLC copiers

two things
1- ATR cable check magenta sensor which can be broken.
2- ATR magenta sensor exchange.

[charm5496]

Re: Photosensitive Drums life of CLC copiers

if your cables are nice and tight on the front of the developer unit then I would pull it back out and make sure all of the HVT contacts are tight at the rear of the unit and coming across the the bottom at the front. They are attached by screws and can work their way loose causing odd issues. You might want to make sure that you also do not have a build up toner/starter on the rack assembly where the metal tab is that supplies the HVT connection to the developer units. You can access these with the drum and developer units out.

The other thing that is sticking in my mind is that your developer unit might not be camming up into place all the way during operation or when running the INIT-M. A lot of times the hopper sags putting extra pressure on your K & M developer units which in turn can cause false readings when running an INIT.

[mbgemini]

Re: Photosensitive Drums life of CLC copiers

two things
1- ATR cable check magenta sensor which can be broken.
2- ATR magenta sensor exchange.

The cable isn't broken but the assembly must have some problems. I tested it in one of my CLC 1150 and it gives the same error code.
Instead the assembly of 1150 inserted in 1130 works well.
So for now 1130 is ok!
I'll make other copies and prints however.

charm5496

Re: Photosensitive Drums life of CLC copiers
if your cables are nice and tight on the front of the developer unit then I would pull it back out and make sure all of the HVT contacts are tight at the rear of the unit and coming across the the bottom at the front. They are attached by screws and can work their way loose causing odd issues. You might want to make sure that you also do not have a build up toner/starter on the rack assembly where the metal tab is that supplies the HVT connection to the developer units. You can access these with the drum and developer units out.

The other thing that is sticking in my mind is that your developer unit might not be camming up into place all the way during operation or when running the INIT-M. A lot of times the hopper sags putting extra pressure on your K & M developer units which in turn can cause false readings when running an INIT.

Thanks also for this advertise; I'll do further check-ups, cause I have other problems also with CLC 1150. I will post soon

Thanks to all for support. Barbara