IMAGE PROCESSING
B121 Series/B259 Series 6-18 SM
Original Modes
The machine has 10 original modes. There are two text modes, three photo modes,
and five “special” modes.
The original mode key on the operation panel has two settings, text and photo.
With the default settings, the machine uses “Normal Text (Text 1)” when the Text
indicator is lit, and uses “Photo Priority (Photo 1)” when the Photo indicator is lit.
The customer can allocate different modes to the Text and Photo indicators with
User Tools – Copier Features – Image Adjustment. Note that the Text indicator
does not have to be allocated to a Text mode and the Photo key does not have to
be allocated to a Photo mode. For example, the Text indicator can be allocated to
Photo 3, and the Photo indicator can be allocated to Special 4.
If the user wishes to customize one of the original modes, the technician can
change the settings using SP4-922 to SP4-942. Refer to “SP Modes for Each
Image Processing Step”. However, only one of the original modes can be
customized at any one time.
SP Modes for Each Image Processing Step
The table on the next page shows which SP modes are used for each step of
image processing.
• 4-921: Selects which original mode the settings from SP4-922 to SP4-932
will be applied to.
• 4-922: Selects the scanner γ curve. You can select either a curve for text-
based originals (brings out text) or a curve for photo originals (better
distinctions between shades of dark colors).
• 4-923: Selects the central notch position for the ID adjustment LEDs.
• 4-926: Adjusts the texture removal level (used with error diffusion).
• 4-927: Adjusts the line width.
• 4-928: Selects the dot erase level.
• 4-929: Converts white to black, and black to white
• 4-930: Adjusts the clarity of line images and the edges of solid images.
• 4-931: Adjusts the clarity of solid image areas.
• 4-932: Adjusts the clarity of low ID lines.
• 4-941: Selects the white line erase level.
• 4-942: Selects the black line erase level.
If a fax and/or scanner/printer option is installed, you can make separate settings
for copier, fax, and scanner/printer mode with these SPs.
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