Konica Minolta BIZHUB 164 Service Manual

14. MALFUNCTION CODE Field Service Ver. 2.0 Jun. 2010
132
bizhub 164
TROUBLESHOOTING
14.3.3 C2557: Abnormally low T/C ratio
14.3.4 C2558: Abnormally high T/C ratio
14.3.5 C255C: TCR sensor adjustment failure
14.3.6 C2702: Abnormal image transfer voltage
Relevant electrical components
TCR sensor board (TCRSB) Printer control board (PRCB)
Step Operations
WIRING DIAGRAM
Control signal
Location
(Electrical compo-
nents)
1Check to see if developer is available. - -
2Check the connector between TCRSB-
relay CN14-PRCB CN10 for proper con-
nection and correct as necessary.
--
3Change TCRSB. - -
4 Execute “TCR AUTO ADJUST.” - -
5Change PRCB. - -
Relevant electrical components
Tra n s fer r ol l e r u nit
High voltage unit (HV1)
Printer control board (PRCB)
Step Operations
WIRING DIAGRAM
Control signal
Location
(Electrical compo-
nents)
1Check the transfer roller unit for installation. - -
2Change HV1. - -
3Change PRCB. - -

Konica Minolta BIZHUB 164 Specifications

General

Print Technology	Laser
Print Speed	16 ppm
Print Resolution	600 x 600 dpi
Copy Speed	16 cpm
Copy Resolution	600 x 600 dpi
Scan Resolution	600 x 600 dpi
Paper Capacity	250 sheets
Interface	USB 2.0
Warm-up Time	29 seconds
Paper Input Capacity	250 sheets
Memory	32 MB
Type	Monochrome
Maximum Paper Size	A3
Duplex Printing	Manual
Network Connectivity	No
USB Connectivity	Yes
Paper Size	A5
Fax Resolution	Not applicable