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
1-3-16
1-3
Default drawer
Sets the drawer to be selected in cases such as
after the reset key is pressed.
1. Select “F10” and press the enter key.
2. Select the default drawer and press the enter
key.
Default drawer: 1 (drawer 1)/2 (drawer 2)/
3 (drawer 3)/4 (drawer 4)
Note: This setting item will not be displayed if
no optional drawer is installed.
Automatic drawer switching
Sets whether the automatic drawer switching
function is available.
1. Select “F11” and press the enter key.
2. Select “on” or “off” and press the enter key.
Setting range: 1 (on)/2 (off)
Note: This setting item will not be displayed if
no optional drawer is installed.
Bypass tray paper size
Sets the paper size for the bypass tray so that it will
be automatically selected.
1. Select “F12” and press the enter key.
2. Select the paper size for the bypass tray and
press the enter key.
Paper size: 1 (A3/11" × 17")/2 (A4 vertical/
8
1
/
2
" × 14")/3 (A4/8
1
/
2
" × 11")/
4 (B4/5
1
/
2
" × 8
1
/
2
")/5 (B5 vertical/11" × 8
1
/
2
")/
6 (B5/no size setting*)/7 (folio/—)/
8 (no size setting*/—)
* Setting of non-standard size paper width for
bypass tray
Non-standard size paper width setting for bypass tray
Sets the paper width for the bypass tray to use
non-standard size paper.
1. Select “F13” and press the enter key.
2. Enter the setting and press the enter key.
Setting range: 100 to 297 mm
Output form
Selects whether or not to perform sort copying
automatically when the DF is used.
1. Select “F14” and press the enter key.
2. Select “sort on” or “sort off” and press the enter
key.
Setting range: 1 (sort on)/2 (sort off)
Note: This setting item will not be displayed if
the optional memory board is not installed.
Rotate sort
Sets whether or not to perform rotate sorting when
the sort mode is selected.
1. Select “F15” and press the enter key.
2. Select “on” or “off” and press the enter key.
Setting range: 1 (on)/2 (off)
Note: This setting item will not be displayed if
the optional memory board is not installed.
Copy limit
Sets the number of copies limit for multiple copy-
ing.
1. Select “F16” and press the enter key.
2. Enter the setting and press the enter key.
Setting range: 1 to 250 copies
Margin width
Sets the default setting of the margin width for the
margin copying.
1. Select “F17” and press the enter key.
2. Enter the setting and press the enter key.
Setting range: Metric
1 to 18 mm
Inch
1 (
1
/
4
")/2 (
3
/8
")/3 (
1
/
2
")/4 (
5
/
8
")/5 (
3
/
4
")
Note: This setting item will not be displayed if
the optional memory board is not installed.
Border erase width
Sets the default setting of the border erase width
for the border erase mode.
1. Select “F18” and press the enter key.
2. Select the setting and press the enter key.
Setting range: 1 (6 mm/
1
/
4
")/2 (12 mm/
1
/
2
")/
3 (18 mm/
3
/
4
")
Note: This setting item will not be displayed if
the optional memory board is not installed.
Layout (4 in 1)
Sets whether to place the originals vertically or
horizontally for 4 in 1 layout copying.
1. Select “F19” and press the enter key.
2. Select “vertical (Z)” or “horizontal (N)” and
press the enter key.
Setting range: 1 (vertical [Z])/2 (horizontal [N])
Note: This setting item will not be displayed if
the optional memory board is not installed.
Layout (borderline)
Selects the type of borderline for layout copying.
1. Select “F20” and press the enter key.
2. Select the setting and press the enter key.
Setting range: 1 (none)/2 (solid line)/3 (dotted
line)
Note: This setting item will not be displayed if
the optional memory board is not installed.
Transparency mode
Selects the paper type for copying onto transpar-
encies or thick paper using the bypass tray.
1. Select “F21” and press the enter key.
2. Select “transparencies” or “thick paper” and
press the enter key.
Setting range: 1 (transparencies)/
2 (thick paper)










