PDA

View Full Version : C451 has light shadow print out while doing double-sided (Mono only)


Custom Search


brianho80
01-22-2014, 05:41 PM
Hi guys,

Anyone of you familiar to this problem before?

At the beginning, I try to service (k) drum unit, clean up developer, drum, blade and contact points but problems remain the same..

Second attend, I replaced (k) IU unit, hopefully can solved but no luck. There after, i suspect transfer roller and replace with another used unit (good unit), however problem remains the same.
lastly, I access service mode, change transfer value setting by adding it. Shadow had gone and my print out didnt effect much like blur or having background.

Anyone has better solution or know the why??
Aprreciate for your sharing..

Albonline
01-22-2014, 05:45 PM
did you jam the machine and look at the print before it went through the fixing unit?

Synaux
01-23-2014, 12:32 AM
Do you have the guide sheet mod installed? a00h 7034 00

brianho80
01-23-2014, 02:45 AM
Yes ... I did make it jam n check drum image. Can see image print on drum with very light d shadow.

Initially I though charging, after service also the same

brianho80
01-23-2014, 02:46 AM
Do you have the guide sheet mod installed? a00h 7034 00

What is the guide sheet mod?

RRodgers
01-23-2014, 03:10 AM
Clean the print head with some rubbing alcohol.

B0265
01-23-2014, 08:40 AM
What is the guide sheet mod?
This is the guide sheet mod:
23651

brianho80
01-24-2014, 04:57 AM
This is the guide sheet mod:
23651

This guide sheet mod is improve print quality ??

Synaux
01-24-2014, 04:37 PM
This guide sheet mod is improve print quality ??

No...posting that was just for the heck of it...its not like I was trying to be helpful or anything...

Anyway, did you check to see if it is installed? If not, install one (they are cheap...and do enhance CQ).

You can also try boosting the Secondary & Primary Transfer Adjustments and maybe a new transfer roller.

Custom Search