VIII-64
I-4 Ribbing
Phenomenon
Light print occurs on the right or left hand side of the image as shown in
print sample (4)
of Fig.8-2
.
Main Causes
1) Slight tilt on the surface of printer
installation table.
(Tilt should be less than 1
°
.)
2) Toner amount in the toner
cartridge PU is insufficient.
3) Toner cartridge PU is not laid as
level, and as the result, toner
concentrates to one side.
4) The rear cover ASSY is not
properly closed.
5) The OPC belt is off the truck and
gets deformed.
6) Retract failure of the toner
cartridge PU.
1
Fig.8-3
Countermeasures
1) Confirm the printer installation table to be flat and appropriate.
2) Shake the toner cartridge horizontally for several times to remedy the concentration.
3) Replace the toner cartridge PU with a new cartridge PU.
4) Close the rear cover ASSY properly.
5) Replace the belt cartridge PU with a new belt cartridge PU.
6) Replace the developer retract solenoid PU with a new developer retract solenoid PU.
Summary of Contents for HL-2700CN Series
Page 16: ...viii 3 Rating Label 6 0A 11 0A For Europe For US ...
Page 18: ...CHAPTER I PRODUCT OUTLINE ...
Page 27: ...CHAPTER II SPECIFICATIONS ...
Page 39: ...III 1 CHAPTER III INSTALLATION ...
Page 53: ...CHAPTER IV STRUCTURE OF SYSTEM COMPONENTS ...
Page 84: ...IV 31 Layout of Clutches and Solenoids 1 2 3 4 5 6 7 8 9 10 Fig 4 30 ...
Page 90: ...IV 37 ...
Page 93: ...IV 40 c Interface Circuit Printer side Table 4 1 Interface Circuit ...
Page 102: ...IV 49 Main PCB circuit Diagram 1 7 IV 49 CODE B512168CIR 1 7 LJ9515001 NAME ...
Page 103: ...IV 50 Main PCB circuit Diagram 2 7 IV 50 CODE B512168CIR 2 7 LJ9515001 NAME ...
Page 104: ...IV 51 Main PCB circuit Diagram 3 7 IV 51 CODE B512168CIR 3 7 LJ9515001 NAME ...
Page 105: ...IV 52 Main PCB circuit Diagram 4 7 IV 52 CODE B512168CIR 4 7 LJ9515001 NAME ...
Page 106: ...IV 53 Main PCB circuit Diagram 5 7 IV 53 CODE B512168CIR 5 7 LJ9515001 NAME ...
Page 107: ...IV 54 Main PCB circuit Diagram 6 7 IV 54 CODE B512168CIR 6 7 LJ9515001 NAME ...
Page 108: ...IV 55 Main PCB circuit Diagram 7 7 IV 55 CODE B512168CIR 7 7 LJ9515001 NAME ...
Page 110: ...IV 57 Layout of Connector Pin Assignment Power Supply Unit Fig 4 40 ...
Page 118: ...IV 65 1 MCTL P W B I1CN IOD P W B DCN1 2 MCTL P W B I2CN IOD P W B DCN3 ...
Page 124: ...IV 71 30 Duplex Connector 31 Lower Feeder Connector 32 DCN2 IOD 33 DCN8 IOD LaserFan ...
Page 125: ...CHAPTER V CONTROL PANEL OPERATION ...
Page 171: ...CHAPTER VI PERIODIC MAINTENANCE ...
Page 197: ...CHAPTER VII DISASSEMBLY ...
Page 200: ...VII 3 Table 7 1 Table of Applicable Screws ...
Page 257: ...CHAPTER VIII TROUBLESHOOTING ...
Page 316: ...VIII 59 5 IMAGE FAILURE 1 2 3 4 5 6 7 8 9 10 11 12 13 14 ...
Page 317: ...VIII 60 15 a 15 b 16 17 18 19 20 21 22 23 24 25 Fig 8 2 ...
Page 346: ...A 4 6 Transfer Unit X X X X X X 7 1 2 3 Location DATE MONTH SERIAL NO YEAR ...