Service manual
Table Of Contents
- COVER
- CAUTION
- Safety precautions
- CONTENTS
- 1-1 Specifications
- 1-2 Handling Precautions
- 1-3 Installation
- 1-4 Maintenance mode
- 1-5 Trouble Shooting
- 1-5-1 Paper misfeed detection
- 1-5-2 Self-diagnosis
- 1-5-3 Image formation problems
- (1) No image appears (entirely white).
- (2) No image appears (entirely black).
- (3) Image is too light.
- (4) Background is visible.
- (5) A white line appears longitudinally.
- (6) A black line appears longitudinally.
- (7) A black line appears laterally.
- (8) One side of the copy image is darker than the other.
- (9) Black dots appear on the image.
- (10)Image is blurred.
- (11)The leading edge of the image is consistently misaligned with the original.
- (12)The leading edge of the image is sporadically misaligned with the original.
- (13)Paper creases.
- (14)Offset occurs.
- (15)Image is partly missing.
- (16)Fixing is poor.
- (17)Image is out of focus.
- (18)Image center does not align with the original center.
- (19)Image is not square.
- (20)Image contrast is low (carrier scattering).
- 1-5-4 Electrical problems
- (1) The machine does not operate when the main switch is turned on
- (2) The drive motor does not operate when (C200)
- (3) The scanner motor does not operate.
- (4) The toner feed motor does not operate
- (5) Cooling fan motor 1 does not operate
- (6) Cooling fan motor 2 does not operate
- (7) Cooling fan motor 3 does not operate
- (8) The drawer motor does not operate
- (9) The registration clutch does not operate
- (10) The upper paper feed clutch does not operate
- (11) The lower paper clutch does not operate
- (12) Paper feed clutch (ST) 1 does not operate
- (13) Paper feed clutch (ST) 2 does not operate
- (14) The bypass paper feed clutch does not operate
- (15) The cleaning lamp does not turn on
- (16) The exposure lamp does not turn on
- (17) The exposure lamp does not turn off
- (18) The fixing heater does not turn on (C610)
- (19) The fixing heater does not turn off
- (20) Main charging is not performed
- (21) Transfer charging is not performed
- (22) No developing bias is output
- (23) The original size is not detected
- (24) The original size is not detected correctly
- (25) The message requesting papaer to be loaded is shown when paper is present
- (26) The message requesting papaer to be loaded is shown when paper is present in the upper drawer
- (27) The message requesting papaer to be loaded is shown when paper is present in the lower drawer
- (28) The size of paper in the upper drawer is not displayed correctly
- (28) The size of paper in the upper drawer is not displayed correctly
- (29) The size of paper in the lower drawer is not displayed correctly
- (30) The printing width of the paper on the bypass is not detected correctly
- (31) A paper jam in the paper feed, paper conveying or fixing section is indicated when the main switch is turned on
- (32) The message requesting covers to be closed is displayed when the front cover, paper conveying unit and lower drawer left
- (33) Others
- 1-5-5 Mechanical problems
- 1-6 Assembly and disassembly
- 1-6-1 Precautions for assembly and disassembly
- 1-6-2 Paper feed section
- (1) Detaching and refitting the upper and lower paper feed pulleys
- (2) Detaching and refitting the bypass paper feed pulley
- (3) Detaching and refitting the left registration cleaner assembly
- (4) Detaching and refitting the right registration cleaner assembly
- (5) Detaching and refitting the bypass paper width switch
- (6) Adjustment after roller and clutch replacement
- 1-6-3 Optical section
- (1) Detaching and refitting the exposure lamp
- (2) Detaching and refitting the scanner wires
- (3) Detaching and refitting the laser scanner unit
- (4) Adjusting the skew and vertical shifting of the laser scanner unit
- (5) Detaching and refitting the ISU (reference)
- (6) Adjusting the position of the ISU (reference)
- (7) Adjusting the longitudinal squareness (reference)
- (8) Adjusting magnification of the scanner in the main scanning direction
- (9) Adjusting magnification of the scanner in the auxiliary scanning direction
- (10) Adjusting the scanner leading edge registration
- (11)Adjusting the scanner center line
- (12) Adjusting the margins for scanning an original on the contact glass
- 1-6-4 Main charging section
- 1-6-5 Drum section
- 1-6-6 Developing section
- 1-6-7 Transfer section
- 1-6-8 Cleaning section
- 1-6-9 Fixing section
- 1-7 Requirements on PCB Replacement
- 2-1 Electrical Parts Layout
- 2-2 Electrical parts layout
- 2-3 Operation of the PCBs
- 2-4 Appendixes
2AV/X
2-3-10
Terminals (CN) Voltage Remarks
2-3
8-15 8-22 0/5 V DC PSW-L*
2
on/off, input
8-16 8-22 0/5 V DC PSW (ST) 1*
3
on/off, input
8-17 8-22 0/5 V DC PSW (ST) 2*
3
on/off, input
8-18 8-22 0/24 V DC DDM*2 on/off, output
8-19 8-22 0/24 V DC DDM (ST) 1*
3
on/off, output
8-20 8-22 0/24 V DC DDM (ST) 2*
3
on/off, output
8-21 8-22 5 V DC 5 V DC supply for lower drawer*
2
, optional drawer*
3
, output
8-23 8-22 0/5 V DC DFSW*
2
on/off, input
8-24 8-22 0/5 V DC DFSW (ST) 1*
3
on/off, input
8-25 8-22 0/5 V DC DFSW (ST) 2*
3
on/off, input
8-26 8-22 0/5 V DC (pulse) DDM drive clock pulse, output
9-2 9-1 0/5 V DC PSSW1-U on/off, input
9-4 9-3 0/5 V DC PSSW2-U on/off, input
9-6 9-5 0/5 V DC PSSW3-U on/off, input
9-8 9-7 0/5 V DC PSSW4-U on/off, input
10-1 10-4 24 V DC 24 V DC supply for key card*
3
, key counter*
3
, output
10-3 10-4 0/24 V DC SSW1 on/off, input
10-5 10-4 0/5 V DC Key card*
3
, key counter*
3
copy count signal, output
10-6 10-4 0/5 V DC Key card*
3
, key counter*
3
connection signal, input
10-7 10-4 24 V DC SSW2 on/off, output
11-1 10-4 24/14 V DC TFM drive control signal (+), output
11-2 10-4 14/24 V DC TFM drive control signal (-), output
11-3 10-4 24 V DC 24 V DC supply for CFM1, output
11-4 10-4 12/24 V DC CFM1 half speed/full speed, output
11-5 10-4 0/24 V DC CFM1 on/off, output
11-6 10-4 24 V DC 24 V DC supply for CFM2, output
11-7 10-4 12/24 V DC CFM2 half speed/full speed, output
11-8 10-4 0/24 V DC CFM2 on/off, output
11-9 10-4 24 V DC 24 V DC supply for CFM3, output
11-10 10-4 12/24 V DC CFM3 half speed/full speed, output
11-11 10-4 0/24 V DC CFM3 on/off, output
12-1 12-12 24 V DC 24 V DC supply for CL, output
12-2 12-12 0/24 V DC CL on/off, output
12-3 12-12 24 V DC 24 V DC supply for total counter, output
12-4 12-12 0/24 V DC Total counter on/off, input
12-6 12-5 0/5 V DC ESW on/off, input
12-7 12-5 5 V DC 5 V DC supply for ESW, output
12-8 12-5 0 - 5 V DC FTH detection voltage, input
12-9 12-5 5 V DC 5 V DC supply for FTH, output
12-10 12-12 24 V DC 24 V DC supply for DM, output
12-11 12-12 24 V DC 24 V DC supply for DM, output
12-14 12-12 5 V DC 5 V DC supply for DM, output
12-16 12-12 0/5 V DC DM on/off, output
12-17 12-12 0/5 V DC (pulse) DM drive clock pulse, output
12-18 12-12 0/5 V DC DM LOCK signal, input
13-1 13-4 24 V DC 24 V DC supply for TNS, output
13-2 13-4 TNS detection voltage, input
13-3 13-4 0 - 15 V DC TNS control voltage, output
13-5 13-6 0/5 V DC Connection detection signal, input
13-7 13-8 0/5 V DC WTDSW on/off, input
14-6A 14-4A 5 V DC 5 V DC supply for STDF*
3
, SRDF*
4
, output
14-7A 14-4A 5 V DC 5 V DC supply for STDF*
3
, SRDF*
4
, output
14-10A 14-8A 24 V DC 24 V DC supply for STDF*
3
, SRDF*
4
, output
14-10A 14-8A 24 V DC 24 V DC supply for STDF*
3
, SRDF*
4
, output
14-1B 14-4A 0/5 V DC OSLED*
4
(red) on/off, output
*1: For 20 cpm copier only. *2: Standard for 20 cpm copier/optional for 15 cpm copier.
*3: Optional for both 20 cpm and 15 cpm copiers. *4: Optional for 20 cpm copier only.