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
2-3-11
Terminals (CN) Voltage Remarks
2-3
14-2B 14-4A 0/5 V DC OSLED*
4
(green) on/off, output
14-3B 14-4A 0/5 V DC SBPSOL*
4
release signal, output
14-4B 14-4A 0/5 V DC SBPSOL*
4
actuate signal, output
14-5B 14-4A 0/5 V DC OFCL*
4
on/off, output
14-6B 14-4A 0/5 V DC EFSSOL*
4
on/off, output
14-8B 14-4A 0/5 V DC SBFSSOL*
4
on/off, output
14-9B 14-4A 0/5 V DC OFSOL*
4
release signal, output
14-10B 14-4A 0/5 V DC OFSOL*
4
actuate signal, output
14-11B 14-4A 0/5 V DC OFM*
4
ENABLE signal, output
15-1A 14-4 0/5 V DC OFM*
3
ENABLE signal, output
15-2A 14-4 0/5 V DC OSDPCB*
3
, OSBSW*
4
on/off, input
15-3A 14-4 0/5 V DC OSDPCB*
3
, OFSW*
4
on/off, input
15-4A 14-4 0/5 V DC OSDPCB*
3
, OSSW*
4
on/off, input
15-5A 14-4 0/5 V DC OSDPCB*
3
on/off, input
15-6A 14-4 0/5 V DC OSDPCB*
3
on/off, input
15-7A 14-4 0/5 V DC STDF*
3
, SRDF*
4
installed/not installed signal, input
15-8A 14-4 0/5 V DC OSWSW*
4
on/off, input
15-9A 14-4 0/5 V DC DFSSW2*
3
on/off, input
15-10A 14-4 0/5 V DC DFSSW1*
3
on/off, input
15-11A 14-4 0/5 V DC OSDPCB*
3
, OSLSW*
4
on/off, input
15-12A 14-4 0/5 V DC DFTSW*
3
on/off, input
15-2B 14-4 0/5 V DC OFM*
3
control signal OFM RET, output
15-3B 14-4 0/5 V DC (pulse) OFM*
3
drive clock pulse, output
15-4B 14-4 0/5 V DC OFM*
3
rotational direction switching signal OFM CWB, output
15-5B 14-4 0/5 V DC OCM*
3
ENABLE signal, output
15-6B 14-4 0/5 V DC OCM*
3
control signal OCM RET, output
15-7B 14-4 0/5 V DC (pulse) OCM*
3
drive clock pulse, output
15-8B 14-4 0/5 V DC OCM*
3
rotational direction switching signal OCM CWB, output
15-9B 14-4 OCM*
3
current control voltage OCM Vref, output
15-10B 14-4 0/5 V DC OCM*
3
drive control signal OCM M3, output
15-11B 14-4 0/5 V DC OCM*
3
drive control signal OCM M2, output
15-12B 14-4 0/5 V DC OCM*
3
drive control signal OCM M1, output
16-1 16-2 0/5 V DC Job separator*
3
, duplex unit*
4
connection signal, input
16-3 16-2 24 V DC 24 V DC supply for FSSOL*
3
, output
16-4 16-2 0/24 V DC FSSOL*
3
actuate signal, output
16-5 16-2 24/0 V DC FSSOL*
3
release signal, output
16-6 16-8 5 V DC 5 V DC supply for JBESW*
3
, output
16-7 16-8 0/5 V DC JBESW*
3
on/off, input
16-10 16-2 24/0 V DC SBSOL*
4
actuate signal, output
16-11 16-2 24/0 V DC SBSOL*
4
release signal, output
16-13 16-12 0/5 V DC JOFSW*
3
on/off, input
16-14 16-12 5 V DC 5 V DC supply for JOFSW*
3
, output
16-15 16-12 5 V DC 5 V DC supply for LED*
3
, output
16-16 16-12 0/5 V DC LED*
3
on/off, output
18-1 18-2 24 V DC 24 V DC supply for MDPCB*
4
, output
18-3 18-4 5 V DC 5 V DC supply for MDPCB*
4
, output
18-5 18-4 0/5 V DC (pulse) FSM*
4
drive clock pulse, output
18-6 18-4 0/5 V DC FSM*
4
R/L signal, output
18-7 18-4 0/5 V DC FSM*
4
on/off, output
18-8 18-4 24 V DC 24 V DC supply for DUPOCSW*
4
, output
18-9 18-4 0/5 V DC FSM*
4
MODE signal, output
18-10 18-4 24 V DC DUPOCSW*
4
on/off, output
18-11 18-4 0/5 V DC MACHINE TYPE signal, input
20-1 20-2 24 V DC 24 V DC supply for PM, output
20-3 20-2 0/5 V DC PM S/S signal, 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.