Confidential
9-35
I-9
White vertical streaks
User Check
(1) Try to wipe the scanner window with a soft cloth.
(2) The toner cartridge may be damaged. Install a new toner cartridge.
(3) Check the printer’s environment. High temperature and high humidity
conditions can cause this problem.
(4) Damp (wet) paper might be used. Try to change to freshly unpacked
paper.
Possible cause
Step
Check
Result
Remedy
Transfer
failure
1
Is the transfer roller
scratched?
Yes Replace the drum unit.
Condensation
2
Has condensation occurred
inside the printer?
Yes Try to print several pages or leave
the printer 2 hours to allow it to
reach room temperature.
I-10
White horizontal streaks
User Check
(1) Check the paper used meets the recommended paper specifications. A
rough surfaced paper, damp paper or thick media can cause the problem.
(2) Check that the appropriate media type is selected in the printer driver.
(3) The problem may disappear by itself. Try printing multiple pages to
clear this problem especially if the printer has not been used for a long
time.
(4) The drum unit may be damaged. Install a new drum unit.
Possible cause
Step
Check
Result
Remedy
Ground
contacts
Developing
bias contact
failure
1
Are the developing bias
contacts between the
printer body and toner
cartridge dirty?
Yes
Clean the electrodes at
both sides.
(4)
Содержание DCP-7010
Страница 1: ...Confidential FACSIMILE EQUIPMENT SERVICE MANUAL MODELS MFC7420 7820N DCP7010 7020 7025 ...
Страница 14: ...Confidential CHAPTER 1 PARTS NAMES FUNCTIONS ...
Страница 20: ...Confidential CHAPTER 2 SPECIFICATIONS ...
Страница 44: ...Confidential CHAPTER 3 THEORY OF OPERATION ...
Страница 64: ......
Страница 65: ...Confidential CHAPTER 4 TRANSFER OF DATA LEFT IN THE MACHINE TO BE SENT FOR REPAIR ...
Страница 68: ...Confidential 4 2 Cover page sample End page sample ...
Страница 69: ...Confidential CHAPTER 5 DISASSEMBLY REASSEMBLY AND LUBRICATION ...
Страница 150: ...Confidential CHAPTER 6 ADJUSTMENTS AND UPDATING OF SETTINGS REQUIRED AFTER PARTS REPLACEMENT ...
Страница 154: ...Confidential CHAPTER 7 CLEANING ...
Страница 156: ...Confidential CHAPTER 8 MAINTENANCE MODE ...
Страница 164: ...8 7 Confidential Scanning Compensation Data List a b c d e f g h i j k l m n q ...
Страница 172: ...8 15 Confidential Configuration List ...
Страница 178: ...8 21 Confidential Cover page sample End page sample ...
Страница 187: ...Confidential CHAPTER 9 ERROR INDICATION AND TROUBLESHOOTING ...
Страница 321: ...A NCU PCB MFC7420 U S A and CANADA models Confidential ...
Страница 322: ...A NCU PCB MFC7820N U S A and CANADA models Confidential ...
Страница 323: ...A NCU PCB MFC7420 EUROPE models Confidential ...
Страница 324: ...A NCU PCB MFC7820N EUROPE models Confidential ...
Страница 325: ...B Power Supply PCB 100V U S A and CANADA models Confidential ...
Страница 326: ...B Power Supply PCB 200V EUROPE models Confidential ...
Страница 327: ...December 04 SM FAX036 2 8C5A03 Printed in Japan ...