Konica Minolta BIZHUB 164 Service Manual

16. IMAGE QUALITY PROBLEM Field Service Ver. 2.0 Jun. 2010
152
bizhub 164
TROUBLESHOOTING
16.2.13 Printer section: Black copy
A. Typical faulty images
B. Troubleshooting Procedure
A09AF3C523DA
Step Check Result Action
1Drum charge corona grid mesh and comb electrode are
loose.
YES • Reinstall.
2Drum charge corona contact is dirty, scratchy, folded, bent,
or damaged.
YES • Correct or change.
3Grid bias contact is dirty, folded, or bent. YES•Clean, correct, or
change.
4Drum ground contact is dirty, scratchy, bent, or damaged. YES•Clean, correct, or
change.
5High voltage unit (HV1) connectors is loose. YES • Reconnect.
6The PH unit cable is loose. YES•Reconnect.
7The following voltage is supplied from the printer control
board (PRCB).
<Check procedure>
Check that there is 24 V developing across the printer con-
trol board pin and GND when the power switch is turned
ON (during a copy cycle or a standby state).
YES • Change IU.
•Change PH unit.
•Change high voltage
unit (HV1).
NO • 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