Opc Drum Section - Sharp MX-C250 Service Manual

'13/Oct
2

10. OPC drum section

A. Electrical and mechanism relation diagram
Signal name
DHPD_CL OPC drum rotation sensor (CL)
DHPD_K OPC drum rotation sensor (BK)
DL_BK Discharge lamp (K)
DL_C Discharge lamp (C)
DL_M Discharge lamp (M)
DL_Y Discharge lamp (Y)
DVM Developing motor (CL)
DM Developing motor (K)
MC-CL Main charger applying voltage (CL)
MC-K Main charger applying voltage (K)
No.
1 OPC drum unit (Y, M, C, K)
Name
Detects rotation and the phase of the OPC drum (CL).
Detects rotation and the phase of the OPC drum (BK).
Discharges electric charges on the OPC drum (K).
Discharges electric charges on the OPC drum (C).
Discharges electric charges on the OPC drum (M).
Discharges electric charges on the OPC drum (Y).
Drives the developing/OPC drum section (CL).
Drives the developing/black OPC drum (BK)/transfer section.
The main charger is charged to generate negative electric charges.
Name
Latent electrostatic images are formed.
MX-C250 OPERATIONAL DESCRIPTIONS 11 – 15
DHPD_K
2
DM(K)
DL_Y
DL_M
DL_C
DL_K
Function/Operation
Function/Operation
2
2
2 DHPD_CL
DVM(CL)