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Ask Electronics Pete Your Own Question
Electronics Pete
Electronics Pete, Engineer
Category: Printers
Satisfied Customers: 17648
Experience:  HNC Computing; Large format and multifunction printer expert
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I have a km hub c6501 ....actually I have 2 ... The color

Customer Question

I have a km biz hub c6501 ....actually I have 2 ... The color registration for the magenta is off and there is no cyan output . I won't call the company that has serviced them for 5 years back , for reasons we won't get into here . The operational machine has 2.9 mil on it the non operational has 1 mil on it . The machine will print b&w and it will print in color with no ma
JA: What's the make/model number of your printer? How old is it?
Customer: with no cyan , but there are no error codes
JA: What kind of computer are you printing from (Mac or PC)? What Operating System (OS) are you running?
Customer: Has nothing to do,with the controller
JA: How long has this been an issue? What happened right before this popped up?
Customer: It went all,the way down ...had a tech come out , he got it up but the color is not right and no cyan
JA: Is there anything else the Printer Technician should be aware of?
Customer: It has all new drums , coronas, transfer belt assy , developers
Submitted: 3 months ago.
Category: Printers
Expert:  Electronics Pete replied 3 months ago.

Hi, I'm Pete. Welcome to JustAnswer! I'm reviewing your question now, and will post back with your reply ASAP.

Expert:  Electronics Pete replied 3 months ago.

Does the problem occur when copying as well as printing?

Customer: replied 3 months ago.
Expert:  Electronics Pete replied 3 months ago.

If you print a diagnostic page does any magenta or cyan print on it?

Customer: replied 3 months ago.
Magenta. No cyan
Expert:  Electronics Pete replied 3 months ago.

Since all new parts have been fitted, this points to a loose connection.

Have you tried removing and re-fitting the parts?

Customer: replied 3 months ago.
I have not done that , however thats all one assembly w with the drums in the transfer belt but there is no error codes
Expert:  Electronics Pete replied 3 months ago.

Check that it is securely fitted and connected.

If the problem persists then the drum unit is suspect.