WC7556 not dispensing cyan toner stays at 100%

[axyun]

WC7556 not dispensing cyan toner. New cartridge and stays at 100% and there is no blue in copies or prints. i tried another cartridge and changed the toner motor but still have problem Pleas assist me in this. Frank/AP

[axyun]

Disassembled machine and will need new cyan dv unit as the gears are shot and dv unit wasn't turning.

[axyun]

Cyan dv unit was not turning. Disassembled and the gears on dv unit are damaged. Ordering today.

[axyun]

replaced developer unit and developer and machine is running ok now.

[walidcharifi]

replaced developer unit and developer and machine is running ok now.

hi
how to replaced developer unit in wc 7556