Explanation Of Regular Pm - Ricoh FT5034 Service Manual

7.3 EXPLANATION OF REGULAR PM

Optics unit Mirror, Lens, Reflector,
Exposure Glass, Platen
Cover, Toner Shield Glass
Guide Rod, Guide Rail,
Guide Rod Felt
ADS Sensor
Paper Feed, Roller Friction Pad
and
Registration
Registration Roller
Transport Transport Belt
Around Drum Corona Wires
End Block Casing
QL Filter
PTL Filter
ID Sensor
Erase Lamp
Cleaning Unit Cleaning Blade
Cleaning Brush
Item
Stains on any part of the optics unit result in a dirty
background, black lines, black spots, or areas of
decreased sharpness on the copy image. Periodic
cleaning is required.
The exposure glass and the platen cover must also be
cleaned. If stains on the platen cover cannot be
removed, it must be replaced.
Stains on the guide rod or oil shortage result in jitter on
the copy image because carrriage movement is not
smooth. Periodic cleaning is required.
Deterioration of the ADS sensor affects the copy image.
Periodic cleaning is required.
If paper powder or dust adheres to the paper feed rollers,
paper may not feed correctly and skewing may occur.
Cleaning or replacement is required at regular intervals.
A dirty registration roller can cause paper to register
incorrectly, skew, or misfeed. Clean the plate at regular
intervals.
If the transport belt is dirty, the back side of the copy may
become dirty. Cleaning is required at regular intervals.
Dirty corona wires may cause uneven image density.
They should be cleaned or replaced at regular intervals.
Toner tends to accumulate on the corona end blocks,
and this can result in poor copy quality or even a high
voltage leak.
Clean the end blocks at regular intervals.
If toner accumulates on the QL, a dirty background or a
repeating negative image may result.
Clean the QL at regular intervals.
If paper dust or toner accumulates on the PTL, its
efficiency may be reduced. This can cause toner to be
reattracted to the drum during transfer, reducing image
density. Clean the PTL at regular intervals.
If paper dust or toner accumulates on the ID sensor the
toner density cannot be controlled correctly. Clean this
sensor at regular intervals.
If toner accumulates on the erase lamp, a dirty
background may occur during copy runs. Clean this lamp
at regular intervals.
A dirty or worn out cleaning blade will cause black lines
on copies and scratches on the drum. Clean this blade at
regular intervals.
A worn out cleaning brush will not clean effectively,
resulting in a dirty background and damage to the
cleaning blade.
Clean this brush at regular intervals.
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Explanation