Konica Minolta BIZHUB 164 Service Manual

Field Service Ver. 2.0 Jun. 2010 16. IMAGE QUALITY PROBLEM
161
bizhub 164
TROUBLESHOOTING
16.2.22 Printer section: Gradation reproduction failure
A. Typical faulty images
B. Troubleshooting Procedure
A09AF3C530DA
Step Check Result Action
1Drum is dirty. YES•Clean.
2Transfer roller is dirty, scratchy, deformed, worn, or dam-
aged.
YES • Clean or change.
3The PH unit cable is loose. YES•Reconnect.
4PH window of PH unit is dirty. YES•Clean.
5TCR sensor (TCRS) is dirty with foreign matter (such as
paper dust) other than developer.
YES • Clean.
6Is a power voltage supplied across CN-2, 3 on PRCB?
<Check procedure>
•Check voltage across a master board pin and GND
when the power switch is turned ON.
NO • Change TCR sensor
(TCRS) and developer.
YES • Change printer control
board (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