CN1445097A - Printer and driving control method for it - Google Patents
Printer and driving control method for it Download PDFInfo
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- CN1445097A CN1445097A CN 03120168 CN03120168A CN1445097A CN 1445097 A CN1445097 A CN 1445097A CN 03120168 CN03120168 CN 03120168 CN 03120168 A CN03120168 A CN 03120168A CN 1445097 A CN1445097 A CN 1445097A
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Abstract
The present invention provides a type wheel selective printer mainly characterized in that forming type rotation of a plurality of types for printing on outer circle surface by employing a DC motor as a drive source. A voltage conversion circuit converts the voltage supplied from the power source into multi-grade motor drive voltage value. A drive motor circuit drives the DC motor with the motor drive voltage value supplied by the voltage conversion circuit. A temperature detecting element detects the temperature at determined position in the printer. A drive control circuit comparing the temperature detected by the temperature detecting element with the determined setting temperature, when the detected temperature is higher than the setting temperature, controls the voltage conversion circuit to reduce the motor drive voltage value.
Description
Technical field
It is employed with printer and the driving control method thereof of direct current generator as the type wheel selecting type printer of drive source to the present invention relates to be equipped with calculator.Specifically be about be equipped with can avoid because of the rotating speed of direct current generator increase drawbacks such as the lettering that causes is bad type wheel selecting type printer printer and drive control method.
Background technology
As the calculator printer, a kind of type wheel rotation that makes multidigit by direct current generator is arranged in known technology, time sequential pulse signal according to the generation of the text point on the corresponding type wheel, drive the literal selection mechanism of electromagnetic drive type, by the printer of selecting every mode word of printing delegation to print.This type wheel selecting type printer is being installed in the finedraw disk of type wheel rotating shaft, is formed with the finedraw of each text point on the corresponding type wheel, detects these finedraws by optical profile type ground, produces the time sequential pulse signal of corresponding each text point.In literal selection mechanism, according to the time sequential pulse signal, the print object literal on type wheel rotate to print position synchronously, drive the literal selection mechanism of electromagnetic drive type and stop the rotation of type wheel.
At this, as shown in figure 11, when high temperature because of the magnetic force of magnet reduces, so at the direct current generator of type wheel selecting type printer, even its driving voltage is certain, but environment temperature follows its rotation speed also to rise when rising.Also have, in the literal selection mechanism of electromagnetic drive type, for the literal that keeps making type wheel be fixed on institute's allocation selects the permanent magnet magnetic force of pawl also to reduce.
When motor rotation speed rose, the literal of the literal selection mechanism by electromagnetic type selected action (switching motion of pawl selected in literal) not catch up with the rotation of type wheel, and might be absorbed in can not the literal selection mode.Have again, as shown in Figure 9 in the return action of literal selection mechanism, because of the return speed of type wheel 3 also rises, so impulsive force also increases when returning.When the magnetic force of permanent magnet 17 reduced the confining force make literal select pawl 16 and reduces during owing to high temperature, the impulsive force when returning made literal selection pawl fly out from the holding position, might move by the chosen position of representing with imaginary line among the figure.Also have, because of passing to the vibration in the transmission paper behind the return action, literal selection pawl 16 leaves and might move at chosen position from the holding position.When this happens, will carry out unwanted literal selection and printing.
Have again, when the contact position of its brush and commutator changes in the direct current generator, phase angle change, even motor driven voltage is certain, rotary speed also will change.Generally as shown in figure 10, when initial operational phase that compares direct current generator and long-term use after-stage, accompanied by long-term is used the mobile variation that brings phase angle because of the contact position of brush and commutator.Follow the variation of phase angle, the rotary speed when the motor rated voltage increases 10～15%.When the motor rotary speed increases, select action not catch up with the rotation of type wheel by the literal of literal selection mechanism, might be absorbed in can not the literal selection mode.
Therefore, for being no more than in the rotation speed scope (guaranteeing the printer function field) that can guarantee printer function, motor rotation speed implementing various measures in the past.What for example, generally know that is provided with the make and break contact parts by centrifugal force and mechanically suppresses increasing of rotation speed at rotor.Also have the rotation speed that detects motor by tachometer generator, adopt the electric control mechanism of control motor driven voltage also all to know.
But, when setting up this mechanism,, be unaccommodated as the printer of the cheapness of combinations such as calculator because its branch cost improves.
Also have, when not setting up this mechanism, compress the inhibition motor driven voltage in advance, make in the long-term rotary speed of back type wheel of using to surpass the printer function field that guarantees.But, adopt this method because of losing the print speed when the common user mode, so can not realize flying print.
Summary of the invention
The objective of the invention is, in order to solve the above problems, propose a kind ofly promptly need not set up mechanical speed governor and tachometer generator etc., do not lose print speed again, can prevent again when under hot environment, using that literal from selecting the driving control method of the type wheel selecting type printer of drawback such as bad.
In addition, another object of the present invention is, propose a kind of being equipped with and promptly do not need attachment mechanism speed regulator and tachometer generator, do not lose print speed again, follow the long-term use of direct current generator and can solve the fast increase problem of rotation type wheel selecting type printer printer and drive control method.
To achieve the above object, printer of the present invention has: direct current generator, be formed with for the individual types of the majority of printing usefulness at periphery, and drive the type wheel of rotation by described direct current generator, power supply, can convert the voltage of supplying with from described power supply to the voltage conversion circuit of multipolar dynamo driving voltage value, by described voltage conversion circuit, by supplying with described motor driven voltage value, drive the drive motors circuit of described direct current generator, the detected temperatures device of detection temperature of institute's allocation in described printer, comparing by the detected temperatures of described detected temperatures device and set design temperature, when described detected temperatures surpasses described design temperature,, control the Drive and Control Circuit of described voltage conversion circuit for reducing described motor driven voltage value.
Preferably described multipolar dynamo driving voltage value has at least as the 1st driving voltage value of initial value and 2nd driving voltage value lower than described the 1st driving voltage value, described Drive and Control Circuit in described detected temperatures when described design temperature is following, described motor driven voltage value as described the 1st driving voltage value, in described detected temperatures when described design temperature is above, described motor driven voltage value as described the 2nd driving voltage value.
It is desirable to, the difference of described the 1st driving voltage value and described the 2nd driving voltage value is corresponding with the difference of described detected temperatures and described design temperature.
At this, described the 2nd driving voltage value is become have more multistage value.
Be more preferably, described Drive and Control Circuit has the stored count counter of described motor-driven time, the time by described counter stored counts reach after the fixed setting driving time, irrespectively control described voltage conversion circuit with described detected temperatures described motor driven voltage value reduced.
It is desirable to, make described Temperature Detector detect described direct current generator temperature nearby.Perhaps, make the peripheral temperature that detects described printer.
And, the present invention proposes a kind of most types that have direct current generator and be formed with confession printing usefulness at periphery that are used to control, and drive the control method of the printer that the type wheel of rotation constitutes by described direct current generator, this method comprises: detect the step of described printer in the temperature of institute's allocation, detected temperature in described detected temperatures step and the step that compares of fixed design temperature, when described detected temperatures surpasses described design temperature, reduce the step that drives described direct current generator magnitude of voltage.
Preferably preestablish at least as the 1st driving voltage value of initial value and 2nd driving voltage value lower than described the 1st driving voltage value, when described detected temperatures when described design temperature is following, described motor driven voltage value as described the 1st driving voltage value, when described detected temperatures when described design temperature is above, described motor driven voltage value as described the 2nd driving voltage value.
It is desirable to, the difference of described the 1st driving voltage value and described the 2nd driving voltage value is corresponding with the difference of described detected temperatures and described design temperature.
At this, described the 2nd driving voltage value is become have more multistage value.
And, better is, have the described direct current generator driving time of stored count step and described integrating gate time with fixed driving time step relatively, after the described stored count time reaches described setting driving time, irrespectively reduce described motor driven voltage value with described detected temperatures.
It is desirable to, in described detected temperatures step, detect described direct current generator temperature nearby.Perhaps detect the peripheral temperature of described printer.
At printer of the present invention and drive in the control method, be nearby or the temperature transition motor driven voltage of printer periphery according to direct current generator.Therefore, do not need because adopt and on direct current generator, to set up mechanical governor and tachometer generator etc. and the upper limit of regulation rotating speed, and can eliminate that the direct current generator rotation speed that produces increases and drawback such as bad is moved in the literal selection selecting the magnetic confining force of pawl to reduce to cause because of literal under hot environment.Therefore, can realize being suitable for the cheap printer that uses as calculator etc.Have again, increase with consider high temperature time rotation speed and the situation that reduces the direct current generator rotary speed is in advance compared, have the advantage that can not cause that under common serviceability temperature state print speed reduces.
Direct current generator fix time abovely again after continuity is used, with the testing result of detected temperatures device driving voltage is reduced.Therefore, needn't on direct current generator, set up mechanical speed governor and velodyne, just can eliminate because of the long-term literal that uses the direct current generator rotary speed to rise to cause and select drawbacks such as action is bad.
Description of drawings
Figure 1A represents the schematic block diagram of type wheel selecting type printer major part according to an embodiment of the invention.
Figure 1B is the circuit diagram of voltage conversion circuit example in the type wheel selecting type printer of expression Figure 1A.
Fig. 2 is that the key diagram with the time sequential pulse generator architecture is selected in the type wheel selecting type printer Chinese word select of expression Figure 1A.
Fig. 3 is the outline flowchart of the type wheel selecting type printer action of expression Figure 1A.
Fig. 4 is the sequential chart of 1 print cycle of type wheel selecting type printer of expression Figure 1A.
The flow chart of voltage transitions control action when Fig. 5 is the initialization process of presentation graphs 3.
Fig. 6 is the flow chart that the driving voltage conversion and control of presentation graphs 3 is handled action.
Fig. 6 be in the expression Figure 1A type wheel selecting type printer with respect to the motor driven voltage of direct current generator variation of ambient temperature-curve map of control example.
Fig. 7 A represents in the type wheel selecting type printer of Figure 1A the curve map with respect to a control example of the variation of ambient temperature motor driven voltage of direct current generator.
Fig. 7 B and Fig. 7 C are with respect to the curve map of other control example of the variation of ambient temperature motor driven voltage of direct current generator in the type wheel selecting type printer of expression Figure 1A.
Fig. 8 is the curve map of expression by the type wheel selecting type printer electric moter voltage transformation of Figure 1A.
Fig. 9 is the schematic diagram of the literal selection mechanism of the electromagnetic drive type in the type wheel selecting type printer of representing in the past.
Figure 10 is the curve map that expression follows direct current generator to use rotary speed to increase for a long time.
Figure 11 is the environment temperature of expression direct current generator and the curve map that rotation speed changes.
The specific embodiment
A following example of using the type wheel selecting type printer of the inventive method with reference to description of drawings.
The basic structure of Fig. 1 type wheel selecting type printer 1 identical with in the past, it has drive source direct current generator 2; Drive the rotating shaft 3a of rotation by this direct current generator; Have a plurality of literal at cylindrical, and can whole rotation and relative rotation with rotating shaft 3a, and be installed in the type wheel 3 of a plurality of figure places of rotating shaft 3a; Stop the rotation with the integrally rotated type wheel 3a of rotating shaft 3a, in the literal selection mechanism 4 of print position for the electromagnetic drive type of selecting required literal; Can produce the optical profile type sequence timer 5 of time sequential pulse the same period with the rotation of the rotating shaft 3a of this type wheel 3.On each type wheel 3 a plurality of literal are arranged, for example arranging 12 literal, from sequence timer 5, time sequential pulse signal T takes place in the position of corresponding each literal.
Type wheel selecting type printer 1 also has printer power supply 6; Make the voltage secondary of power supply 6 be converted to the 1st and the 2nd magnitude of voltage V1, the V2 (voltage conversion circuit 7 of V1＞V2); By voltage conversion circuit 7,, drive the drive motors circuit 8 of direct current generator 2 according to the driving voltage of supplying with motor; DM circuit 9 for the electromagnet 20 that drives literal selection mechanism 4.Has detected temperatures element 10 again by the detected temperatures device of forming at the nearby thermistor of configuration of direct current generator 2.For reaching the purpose that drives control, the Drive and Control Circuit 11 that each circuit 7,8,9 is formed by the microprocessor that is made of CPU, ROM, RAM etc. constitutes.
Drive and Control Circuit 11 has the detection signal 10s that obtains according to from detected temperatures element 10, and detects the test section 12 of the environment temperature a of direct current generator; The comparing section 13 that detected environment temperature a and predetermined design temperature b are compared; And when environment temperature a surpassed design temperature b, changing voltage change-over circuit 7 made the driving voltage of the 2nd magnitude of voltage V2 of low-voltage as motor; Supply with the electric moter voltage control part 14 of drive motors circuit 8.Wherein also include output 2s according to the encoder (not having diagram) of dress in the direct current generator 2, the integrating counter 15 of integrating motor-driven time A and the integrating value A by this integrating counter 15 get work " O " to original state sign F, are shown as the sign F of " 1 " when reaching predetermined setting driving time B.The state that has precedence over this sign F at electric moter voltage control part 14 carries out the conversion and control of motor driven voltage.
At this, represent to have the circuit example of described voltage conversion circuit 7 at Figure 1B.The voltage conversion circuit 7 that is shown in this figure have according to the switching signal 11s from Drive and Control Circuit 11 carry out switch triode 21 that switch switches and between the colelctor electrode of this triode 21 and emitter stage and 3 step-downs that connect with diodes 22,23,24.Diode 22～24 is by forward contacting.According to from switching signal 11s triode 21 conductings of Drive and Control Circuit 11 time, can obtain high voltage V1, by the time, can obtain low voltage value V2 by diode 22～24 step-downs.
Below, Fig. 2 is the key diagram of the frame for movement of expression sequence timer 5.Sequence timer 5 is by the finedraw disk 51 of the rotating shaft 3a that is installed in type wheel 3 and the optical encoders, angle sensors of forming at the photo-coupler 52 for detecting each finedraw that this finedraw disk 51 forms.Being formed with many finedraws at finedraw disk 51, is the corresponding relation of the time sequential pulse signal that clearly produces with respect to these finedraws with by this finedraw in diagram, and each time sequential pulse that is shown in following Fig. 4 is with identical symbol.As the finedraw on the finedraw disk,, be formed with 13 narrow finedraw T0～T12 at interval by certain angle for making the literal time sequential pulse that produces each literal on the corresponding type wheel 3.Adjoining position at finedraw T0 forms wide cut finedraw Ts, forms no finedraw part between this time sequential pulse Ts and the finedraw T12.The effect of finedraw Ts is to make it produce time sequential pulse at last for the backstroke that returns initial position at type wheel 3.
Fig. 3 is the outline flowchart of expression type wheel printer 1 action, and Fig. 4 is the sequential chart that circulation is played in 1 of expression.With reference to these figure, the simple motion of the type wheel selecting type printer 1 that this is routine is described.
At first, connect power supply, carry out initialization (step ST1).Position of readiness according to each drive part of initializing set.Then, when print command was arranged, motor drive signal was connected, and direct current generator 2 begins rotation (step ST2).Because the rotation type wheel 3 of direct current generator 2 also begins rotation, each literal on the corresponding type wheel 3 produces time sequential pulse signal T (step ST3) from sequence timer 5.
In Drive and Control Circuit 11, the time sequential pulse of counting sequence pulse signal T when the literal that should print rotates to institute's allocation, drives the solenoid driver circuit 9 of control literal selection mechanism, the literal of relevant bits is selected with electromagnet energising (step ST4,5).And, print the transmission of using hurricane band paper simultaneously with this selection action.After the selection of whole type wheel 3 was over, marking roll (not having diagram) rotates at the literal of type wheel 3 selected the ranks part, carries out 1 line printing at relative record-paper between them, then proceeds return action (step ST6).
Print and return be over after, carry out the transmission paper action (step ST7) of 1 row share.
Then, described as follows shown in Figure 6, carry out the conversion and control (step ST8) of motor driven voltage.At the interval of transmitting the paper action, type wheel 3 turns back to its original state.In the stroke that type wheel 3 returns, produce time sequential pulse TS from sequence timer 5, and close synchronously power supply (step ST9,10,11) therewith.When printing repeatedly, carry out the action of step ST3～ST9 repeatedly.
At this, in the initialization process (ST1) behind the device power connection, in the time of with various initialization process, set the motor driven voltage Vp that supplies with drive motors circuit 8 by voltage conversion circuit 7.The setting of motor driven voltage Vp when initialization process is handled and is shown in Fig. 5.In the initialization process behind the device power connection, whether the integrating value A that differentiates the motor-driven time surpasses setting driving time B (step ST21), when surpassing, F erects " 1 " (step ST22) at sign, when not surpassing, sign F still keeps " 0 " former state (step ST23) of original state.Then, the state of diagnostic criterium F (step ST24) is if " 0 " former state of original state is set at high-voltage value V1 (step ST25) by voltage conversion circuit 7 as the motor driven voltage Vp that supplies with drive motors circuit 8 so.Yet, when the integrating value A of the driving time of direct current generator 2 reaches the state of setting driving time B, promptly as described when sign F erects the state of " 1 ", be set at low voltage value V2 (step ST26) as motor driven voltage Vp.
As shown in Figure 6, carrying out driving voltage after the action of the intact transmission of 1 line printing paper sets when handling (step ST8), output 10s according to detected temperatures element 10, detect the environment temperature a (step ST32) of direct current generator 2, differentiate detected ambient temperature value a then and whether surpass the temperature b value of setting (step ST33).During common serviceability temperature state below design temperature b, be set at high-voltage value V1 (step ST34) as motor driven voltage Vp.In contrast, when detected environment temperature a surpasses the condition of high temperature of setting value b, be set at low voltage value V2 (step ST35) as motor driven voltage Vp.
Fig. 7 represents that according to relevant environment temperature, motor driven voltage Vp changes the curve map of example.In illustrated example, design temperature b is set at 45 ℃, and environment temperature a adopts 13.5V (the 1st magnitude of voltage V1) as motor driven voltage Vp when being lower than 45 ℃, when surpassing 45 ℃, adopts 12.5V (the 2nd magnitude of voltage V2) as motor driven voltage Vp.
When illustrating, or this example,, and carry out conversion and control according to the motor driven voltage of the driving time of direct current generator 2 preferentially according to the conversion and control of the motor driven voltage of the environment temperature of direct current generator 2 referring again to Fig. 6.Promptly in advance in the detection processing of environment temperature a and the state (step ST31) of diagnostic criterium F1.Sign F1 carries out the conversion and control of motor driven voltage as described according to the environment temperature a of direct current generator 2 when transition status.Yet sign F1 because of the driving time A of direct current generator 2 has reached setting driving time B, so how it doesn't matter with the environment temperature of direct current generator 2, and is set at low voltage value V2 (step ST35) to motor driven voltage Vp when being shown as " 1 ".Therefore, direct current generator 2 is after being in long-term user mode, and is irrelevant with environment temperature shown in Fig. 7 with dashed lines, often motor driven voltage Vp remained on low voltage value, for example 12.5V.
Constituting like this in this routine type wheel selecting type printer 1, as shown in Figure 8, the driving voltage Vp of direct current generator 2 is set in high-voltage value V1 when initial the use.Type wheel selecting type printer 1 is when long-term the use, and direct current generator 2 moves the contact position of its brush and commutator as described and changes phase angle, can improve the rotation speed with respect to rated voltage.With shown in the solid line, the rotary speed of type wheel 3 exceeds the L line that is illustrated in the upper limit speed that guarantees that the printer function scope is interior to its result as figure.
But this example is by adding up the integrating value A of ground direct current generator 2 driving times continuously, and after being in long-term user mode, the driving voltage value Vp of direct current generator 2 can convert low voltage value V2 to.Its as a result the rotation speed of type wheel 3 shown in thick dashed line among the figure, be suppressed in below the L line, and can guarantee suitable printing action.
Have, even before being in long-term user mode, the environment temperature a of direct current generator 2 can make the driving voltage value Vp of direct current generator 2 convert low voltage value V2 to when being absorbed in the condition of high temperature when printing action by detecting each again.Its result also can avoid Yin Wendu rising magnetic force to reduce, and the rotation speed of direct current generator 2 increases (with reference to Figure 11) and the literal that causes selects action bad and print not good.
As previously discussed, adopt this routine type wheel selecting type printer 1, do not need parts such as mechanically-operated controller and tachometer generator, can avoid when under hot environment, using that to increase the printing of selecting the magnetic confining force reduction etc. of pawl to cause with literal bad etc. because of type wheel 3 rotary speeies yet.Also have, because of using for a long time, the rotary speed of type wheel 3 increases and causes that drawbacks such as printing is bad also can avoid.Therefore, can reduce the printer cost, suit as the calculator printer.
Have, this example is because of carrying out the conversion of motor driven voltage by using diode to constitute cheap circuit again, and this point is favourable to the manufacturing cost that reduces printer.
Further, because of constantly changing motor driven voltage, different with the situation of the rotary speed that suppresses type wheel from beginning low control motor driven voltage, under general serviceability temperature state, use, and in deciding is between the operating period, have the print speed of not losing, just can carry out the advantage of flying print.
Also having, in described embodiment, is that the motor driven voltage value is made V1, the conversion of V2 secondary, and the multistage conversion and control that it is made more than three grades also is possible.Have, shown in Fig. 7 B, it also is effective that the rising that is accompanied by temperature makes motor driven voltage reduce gradually by shaped form or linear again.Just like shown in Fig. 7 C, get below design temperature and make same magnitude of voltage again, after surpassing design temperature, along with the rising of temperature motor driven voltage being reduced gradually by shaped form or linear also is effective.
Having, is to be undertaken moving according to the differentiation of environment temperature conversion motor driven voltage by each line printing in described example again, and it also is possible that use time point is in addition differentiated.
Also having, is to carry out temperature detection by the nearby configuration detection temperature element (TE at direct current generator in described example, and it also is possible in addition coming the testing environment temperature at the peripheral part configuration detection temperature element (TE of printer.
Claims (14)
1. a printer is characterized in that: have: direct current generator; Be formed with for a plurality of types that print usefulness at periphery, and drive the type wheel of rotation by described direct current generator; Power supply; The voltage transformation of supplying with from described power supply is become the voltage conversion circuit of multipolar dynamo driving voltage value; By supply with described motor driven voltage value by described voltage conversion circuit, drive the motor-drive circuit of described direct current generator; The Temperature Detector of the temperature of the institute allocation of detection in described printer; Compare by the detected temperatures of described detected temperatures device and the design temperature of setting with handle, when described detected temperatures surpasses described design temperature, control described voltage conversion circuit, make it reduce the Drive and Control Circuit of this motor driven voltage value.
2. printer according to claim 1 is characterized in that:
Described multistage motor driven voltage value has at least as the 1st driving voltage value of initial value and 2nd driving voltage value lower than described the 1st magnitude of voltage,
Described Drive and Control Circuit, when described detected temperatures when described design temperature is following, described motor driven voltage value as the 1st driving voltage value, when described detected temperatures when described design temperature is above, described motor driven voltage value as described the 2nd driving voltage value.
3. printer according to claim 2 is characterized in that: the difference of described the 1st driving voltage value and described the 2nd driving voltage value is corresponding with the difference of described detected temperatures and described design temperature.
4. printer according to claim 3 is characterized in that: described the 2nd driving voltage value has more multistage value.
5. printer according to claim 1 is characterized in that:
Described Drive and Control Circuit has the counter of the described direct current generator driving time of accumulative total,
Control described voltage conversion circuit, make it reach the setting driving time of regulation in time by described counter stored count after, irrespectively reduce described motor driven voltage value with described detected temperatures.
6. printer according to claim 1 is characterized in that: described Temperature Detector detects described direct current generator temperature nearby.
7. printer according to claim 1 is characterized in that: described Temperature Detector detects the peripheral temperature of described printer.
8. the control method of a printer, be a kind of be used to control have direct current generator and be formed with a plurality of types for printing usefulness at periphery, and drive the control method of the printer of the type wheel that rotates by described direct current generator, it is characterized in that: comprise
The step of detection temperature of institute's allocation in described printer,
By the detected temperature of described detected temperatures step and the step that compares of fixed design temperature,
When described detected temperatures surpasses described design temperature, reduce the step that drives described direct current generator magnitude of voltage.
9. control method according to claim 8 is characterized in that:
At least preestablish as the 1st driving voltage value of initial value and the 2nd driving voltage value lower than described the 1st driving voltage value,
When described detected temperatures when described design temperature is following, described motor driven voltage value as described the 1st driving voltage value, when described detected temperatures when described design temperature is above, described motor driven voltage value as described the 2nd driving voltage value.
10. control method according to claim 9 is characterized in that: the difference of described the 1st driving voltage value and described the 2nd driving voltage value is corresponding with the temperature difference that sets with described detected temperatures.
11. control method according to claim 10 is characterized in that: described the 2nd driving voltage value has more multistage value.
12. control method according to claim 8 is characterized in that: comprise
The step of the driving time of the described direct current generator of stored count,
The time of institute's stored count and the step that compares of fixed setting driving time,
Reach after the driving time that sets in the described stored count time, irrespectively reduce described motor driven voltage value with described detected temperatures.
13. control method according to claim 8 is characterized in that: in described detected temperatures step, detect described direct current generator temperature nearby.
14. control method according to claim 8 is characterized in that: the peripheral temperature that in described detected temperatures step, detects described printer.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002067730A JP2003266821A (en) | 2002-03-12 | 2002-03-12 | Drive control method for type wheel selective printer |
| JP2002067730 | 2002-03-12 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1445097A true CN1445097A (en) | 2003-10-01 |
| CN1231358C CN1231358C (en) | 2005-12-14 |
Family
ID=28034957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03120168 Expired - Fee Related CN1231358C (en) | 2002-03-12 | 2003-03-11 | Printer and driving control method for it |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2003266821A (en) |
| CN (1) | CN1231358C (en) |
| HK (1) | HK1059917A1 (en) |
-
2002
- 2002-03-12 JP JP2002067730A patent/JP2003266821A/en not_active Withdrawn
-
2003
- 2003-03-11 CN CN 03120168 patent/CN1231358C/en not_active Expired - Fee Related
-
2004
- 2004-02-27 HK HK04101460A patent/HK1059917A1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CN1231358C (en) | 2005-12-14 |
| JP2003266821A (en) | 2003-09-25 |
| HK1059917A1 (en) | 2004-07-23 |
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