CANON IR7105

[kingpd@businessprints.net]

U can not take apart the LASER

Is there a reason why he can't. I'm just asking because we've had to do it on some old HP lasers where colored toners would get inside and block beams and screw up the images. A totally different beast but I'd really like to learn.

[teckat]

Is there a reason why he can't. I'm just asking because we've had to do it on some old HP lasers where colored toners would get inside and block beams and screw up the images. A totally different beast but I'd really like to learn.

The units are manufactured not to be taken apart/
LASER.JPG

[kingpd@businessprints.net]

that's a good reason.

[ivc]

copy is the same, print or copy

[kingpd@businessprints.net]

copy is the same, print or copy

Some more questions for you:
1. Can you post the original and copy?
2. The original isn't a jpeg or other picture file is it?
3. The copier isn't defaulted to photo of mixed mode is it?
4. Same problem on all print drawers?
5. Dedicated power breaker? Is it on a carpet? (these are going to be my standard two questions forever)
6. I shouldn't have to ask but is it OEM toner, or has anyone ever put in a generic?
7. Did anyone ever try to refill the toner cartridge with waste toner? HA! (forum joke)
8. What kind and weight of paper are you using?
9. So basically all coronas and drum are new and replaced with new oem?

Try this. Rig the door so you can see inside. Make many prints and deliberately jam it when there's prints in every part of the machine in the pathway:
A. Is the pretransfered toner on the drum a good solid black?
B. Is the prefused toner on the paper under the drum a good solid black?
C. Is the postfuser toner a good solid black. It will be shinier and not as charcoal looking b/c of the wax component but should still be good and dark.

[izcuintle]

Replace laser unit

When you go through all the steps and nothing solves "gray copies". These machines had a problem with laser unit double check what i am telling you but i think my boss had a free replacement from Canon. These machines have a defective laser unit. We solve the problem with the LASER UNIT REPLACED>

[teckat]

copy is the same, print or copy

do u work for or know a Canon Authorized Dealer Tech
to get Laser Repaired for free ??

Read Canon pdf on iR7105-defective Lasers
7105-LS-Ltr.pdf

Repair Request Form
7105-LS-Form.pdf

[tinnyjay]

Check the developer unit as i said in the first post.
Check the blade on developer unit,close to magnetic roller.\
It dont let the toner to fill the magnetic roller.

The problem came after you made a PM.

[izcuintle]

sorry for taking so long to reply but i am on vacation and i will find out how my boss solve the laser issue when come back to work

[Canuck]

Remove the glass between the laser and the drum..it slides out and see if it has any affect. Lasers go bad on these units alot

[DAG COPIERS & COMPUTERS]

I bet tinnyjay could be right. check the position of the DOCTOR BLADE on the magnetic roller, it is very instrumental in controlling the quantity of toner dispensed on the magnetic roller and consequently the amount transferred to the drum. check that there's also proper contact between Dev unit and drum. Finally from the many reports going on this forum, it appears CANON LASER UNITS have a high FAILURE RATE, i suggest a technical report about this issue be compiled and forwarded to the factory for their consideration. what do think - teckat ?

[THUK]

I bet tinnyjay could be right. check the position of the DOCTOR BLADE on the magnetic roller, it is very instrumental in controlling the quantity of toner dispensed on the magnetic roller and consequently the amount transferred to the drum. check that there's also proper contact between Dev unit and drum. Finally from the many reports going on this forum, it appears CANON LASER UNITS have a high FAILURE RATE, i suggest a technical report about this issue be compiled and forwarded to the factory for their consideration. what do think - teckat ?

hi,have you tried putting fresh toner in the dev.

[teckat]

I bet tinnyjay could be right. check the position of the DOCTOR BLADE on the magnetic roller, it is very instrumental in controlling the quantity of toner dispensed on the magnetic roller and consequently the amount transferred to the drum. check that there's also proper contact between Dev unit and drum. Finally from the many reports going on this forum, it appears CANON LASER UNITS have a high FAILURE RATE, i suggest a technical report about this issue be compiled and forwarded to the factory for their consideration. what do think - teckat ?

Laser Return Recalls are only accepted from an Canon Authorized Dealer / guess u can show a Lawyer the pdf letter from Canon I posted above.

[kingpd@businessprints.net]

See if there is a canon dealer in the area and hopefully it won't cost you anything. If there isn't, which is possible; then put in writing a request for a replacement laser unit. Don't be threatening, but be assertive-aggressive. If they don't give you one, you can always get progressively nastier and file something on them. Let them know you mean business.

You have to be stern in this world. Nobody will hand you anything on a silver platter.