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  1. #1
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    BH-C-284e/364e, Warm-up

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    BH-C-284e/364e, Warm-up

    Guys, which "Warm-up" setting do you advise generally for the BH-C-284e/364e series?

    System1>Warmup, Mode 1, 2, 3 or 4?

    Hans
    " Sent from my Intel i286 using MS-DOS 2.0 "

  2. #2
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    BH-C-284e/364e, Warm-up


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    Re: BH-C-284e/364e, Warm-up

    Countries with winter and summer are 3-4

  3. #3
    Service Manager 1,000+ Posts femaster's Avatar
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    Re: BH-C-284e/364e, Warm-up

    My company has never changed the setting from the default, which is Mode 1. Here is what the service manual states about each setting. Essentially, the higher the number, the slower it is to warm up.

    Mode1 (Default)
    It makes the warm-up time for black print shortest.
    Mode2
    The warm-up time for both black and color will be as specified value.
    Mode3
    To prevent curling of the paper immediately after the warm-up, printing productivity is decreased by PPM control.The warm-up time will be as specified for both black and color.
    Mode4
    By having a longer warm-up time and warming up the fusing unit, curling of the paper immediately after the warm-up can be prevented. The warm-up period of time will be 65 seconds or under.

    EDIT: Just noticed this was an old post brought back from the dead by somebody...
    A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 3 years.
    My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

  4. #4
    Service Manager 2,500+ Posts
    BH-C-284e/364e, Warm-up

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    Re: BH-C-284e/364e, Warm-up

    Still for me confusing.

    What to choose for a customer who prints almost only B/W but is facing with the first prints in the morning, jams because the paper is curling when just entering the fuser.

    Who cares about image stabilization as mentioned in the manual, when only one thing is important: Paper at least running through the machine without jams.

    Hans
    " Sent from my Intel i286 using MS-DOS 2.0 "

  5. #5
    Service Manager 1,000+ Posts femaster's Avatar
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    Re: BH-C-284e/364e, Warm-up

    Below is a table pulled from the service manual that has a bit more detail for curling issue right after morning warm-up. It seems to involve two different settings, warn up and humidity circumstance.
    The humidity setting is controlled in the ENGINE FW DipSW settings. Switch number 5, Choice of high humidity circumstance.

    Warm Up

    Use
    To change warm up completion time.
    Mode is changed to Mode 2 in case the paper gets curled significantly when black printing is conducted immediately after warm up at
    Mode 1.
    Mode is changed to Mode 3 or 4 in case the paper gets curled immediately after normal warm up or the curled paper causes paper jam,
    paper exit failure, punch/staple/fold position failure or etc.

    Choice of high humidity circumstance
    Out of PPM control for preventing the paper from losing its fusibility, "high humidity circumstance mode" which controls paper curling in
    high humidity is prohibited.
    When this setting is ON, high humidity circumstance mode for PPM control will not be conducted.
    Procedure
    1. Touch [Service Mode] -> [Enhanced Security] -> [Engine FW DipSW].
    2. Touch [5] and check the key is highlighted (ON state) in reverse video.
    3. Touch [OK].

    Fusing operation mode
    Warm-up related control can be changed by using [Warm Up] setting and [Choice of high humidity circumstance] setting.
    When the main power switch is turned on, the mode is defined according to each choice setting.
    The following table shows the features of each operation mode.

    Operation
    mode
    Service Mode - Warm Up Setting
    Service Mode - Humidity Circumstance Setting
    Target User
    Advantages
    Disadvantages
    1 (Default) Mode 1 OFF Black usage rate is high
    want to print quickly
    Makes warm-up time for black shortest Curling may occur in high humidity
    2 Mode 1 ON Black usage rate is high
    want to prevent curling
    Warm-up time for black is made shortest except when in high humidity
    Decreases possibility curling occurs in high humidity
    Warm-up time is long in high humidity (65 seconds or later)
    3 Mode 2 OFF want to print quickly
    color usage rate is high
    Warm-up time is as specified value or later
    High productivity even in high humidity
    Curling may occur in high humidity
    4 Mode 2 ON color usage rate is high
    want to prevent curling
    Warm-up time is as specified value or later except in high humidity
    Decreases possibility curling occurs in high humidity
    Warm-up time is long in high humidity (65 seconds or later)
    5 Mode 3 OFF want to print quickly
    want to prevent curling immediately after
    warm-up
    Warm-up time is as specified value or later
    Decreases the curling in normal circumstance
    Productivity immediately after warm-up decreases
    Curling may occur in high humidity
    6 Mode 3 ON want to prevent curling
    immediately after
    warm-up
    want to print quickly
    want to prevent curling
    when humidity is high
    Warm-up time is as specified
    value or later
    Decreases possibility curling occurs
    Productivity immediately after warm-up decreases
    Warm-up time is long in high humidity (65 seconds or later)
    7 Mode 4 OFF or ON Want to prevent curling immediately after warm-up Decreases possibility curling occurs Warm-up time is long (65 seconds or later)
    A Ricoh Service Tech for 7 year. A Konica Minolta Service Tech for 7 years. Now, KM service manager for 3 years.
    My Ricoh knowledge is slowly dwindling away at this point. Many things have been lost to time...

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