1.3 UNEVEN IMAGE DENSITY
- Problem -
Uneven image density appears on the copies.
- Possible Cause -
1. Dirty optics
2. Uneven exposure adjustment plates
3. Dirty corona wires or grid
4. Uneven height of the charge corona wire
- Action -
Does the uneven image area shift when a reduction copy is made?
No
Yes
Is the optics section dirty?
No
Yes
Clean the optics and perform the necessary SP modes
in order (SP95, 48 and 56).
Adjust the exposure adjustment plates on the 1st scanner.
(See Side-to-side Exposure Adjustment.)
Is the erase lamp or quenching lamp dirty?
No
Yes
Clean the erase lamp or quenching lamp.
Are the corona wires or grid plate dirty?
No
Yes
Clean the corona wires, grid plate, and casings.
Adjust the charge corona wire height using a drum shoe.
(See Charge Corona Current Adjustment.)
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A151/A152
Summary of Contents for A151
Page 1: ...SERVICE MANUAL PN RCFM3213 A151 A152 A202 A203 RICOH GROUP COMPANIES ...
Page 2: ...SERVICE MANUAL A151 A152 A202 A203 RICOH GROUP COMPANIES ...
Page 3: ...A151 A152 A202 A203 FIELD SERVICE MANUAL PN RCFM3213 ...
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Page 27: ...OVERALL MACHINE INFORMATION ...
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Page 33: ...GUIDE TO COMPONENTS ...
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Page 43: ...INSTALLATION ...
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Page 55: ...SERVICE TABLES ...
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Page 95: ...REPLACEMENT AND ADJUSTMENT ...
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Page 193: ...TROUBLESHOOTING ...
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Page 251: ...DOCUMENT FEEDER A296 ...
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Page 277: ...A202 A203 SERVICE MANUAL ...
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Page 337: ...DOCUMENT FEEDER A662 ...
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Page 359: ...TECHNICAL SERVICE BULLETINS ...
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Page 372: ...Tech Service Bulletin No 3013 3213 008 Page 2 of 3 Continued ...
Page 373: ...Tech Service Bulletin No 3013 3213 008 Page 3 of 3 ...